diff options
Diffstat (limited to 'python/gevent/resolver')
| -rw-r--r-- | python/gevent/resolver/__init__.py | 103 | ||||
| -rw-r--r-- | python/gevent/resolver/ares.py | 357 | ||||
| -rw-r--r-- | python/gevent/resolver/blocking.py | 41 | ||||
| -rw-r--r-- | python/gevent/resolver/cares.c | 15233 | ||||
| -rw-r--r-- | python/gevent/resolver/cares.cp36-win32.pyd | bin | 0 -> 154112 bytes | |||
| -rw-r--r-- | python/gevent/resolver/cares.pyx | 464 | ||||
| -rw-r--r-- | python/gevent/resolver/cares_ntop.h | 7 | ||||
| -rw-r--r-- | python/gevent/resolver/cares_pton.h | 8 | ||||
| -rw-r--r-- | python/gevent/resolver/dnshelper.c | 159 | ||||
| -rw-r--r-- | python/gevent/resolver/dnspython.py | 662 | ||||
| -rw-r--r-- | python/gevent/resolver/libcares.pxd | 109 | ||||
| -rw-r--r-- | python/gevent/resolver/thread.py | 71 |
12 files changed, 17214 insertions, 0 deletions
diff --git a/python/gevent/resolver/__init__.py b/python/gevent/resolver/__init__.py new file mode 100644 index 0000000..3da38e3 --- /dev/null +++ b/python/gevent/resolver/__init__.py @@ -0,0 +1,103 @@ +# Copyright (c) 2018 gevent contributors. See LICENSE for details. + +from _socket import gaierror +from _socket import error +from _socket import getservbyname +from _socket import getaddrinfo + +from gevent._compat import string_types +from gevent._compat import integer_types + +from gevent.socket import SOCK_STREAM +from gevent.socket import SOCK_DGRAM +from gevent.socket import SOL_TCP +from gevent.socket import AI_CANONNAME +from gevent.socket import EAI_SERVICE +from gevent.socket import AF_INET +from gevent.socket import AI_PASSIVE + + +def _lookup_port(port, socktype): + # pylint:disable=too-many-branches + socktypes = [] + if isinstance(port, string_types): + try: + port = int(port) + except ValueError: + try: + if socktype == 0: + origport = port + try: + port = getservbyname(port, 'tcp') + socktypes.append(SOCK_STREAM) + except error: + port = getservbyname(port, 'udp') + socktypes.append(SOCK_DGRAM) + else: + try: + if port == getservbyname(origport, 'udp'): + socktypes.append(SOCK_DGRAM) + except error: + pass + elif socktype == SOCK_STREAM: + port = getservbyname(port, 'tcp') + elif socktype == SOCK_DGRAM: + port = getservbyname(port, 'udp') + else: + raise gaierror(EAI_SERVICE, 'Servname not supported for ai_socktype') + except error as ex: + if 'not found' in str(ex): + raise gaierror(EAI_SERVICE, 'Servname not supported for ai_socktype') + else: + raise gaierror(str(ex)) + except UnicodeEncodeError: + raise error('Int or String expected', port) + elif port is None: + port = 0 + elif isinstance(port, integer_types): + pass + else: + raise error('Int or String expected', port, type(port)) + port = int(port % 65536) + if not socktypes and socktype: + socktypes.append(socktype) + return port, socktypes + +hostname_types = tuple(set(string_types + (bytearray, bytes))) + +def _resolve_special(hostname, family): + if not isinstance(hostname, hostname_types): + raise TypeError("argument 1 must be str, bytes or bytearray, not %s" % (type(hostname),)) + + if hostname == '': + result = getaddrinfo(None, 0, family, SOCK_DGRAM, 0, AI_PASSIVE) + if len(result) != 1: + raise error('wildcard resolved to multiple address') + return result[0][4][0] + return hostname + + +class AbstractResolver(object): + + def gethostbyname(self, hostname, family=AF_INET): + hostname = _resolve_special(hostname, family) + return self.gethostbyname_ex(hostname, family)[-1][0] + + def gethostbyname_ex(self, hostname, family=AF_INET): + aliases = self._getaliases(hostname, family) + addresses = [] + tuples = self.getaddrinfo(hostname, 0, family, + SOCK_STREAM, + SOL_TCP, AI_CANONNAME) + canonical = tuples[0][3] + for item in tuples: + addresses.append(item[4][0]) + # XXX we just ignore aliases + return (canonical, aliases, addresses) + + def getaddrinfo(self, host, port, family=0, socktype=0, proto=0, flags=0): + raise NotImplementedError() + + def _getaliases(self, hostname, family): + # pylint:disable=unused-argument + return [] diff --git a/python/gevent/resolver/ares.py b/python/gevent/resolver/ares.py new file mode 100644 index 0000000..ea6e919 --- /dev/null +++ b/python/gevent/resolver/ares.py @@ -0,0 +1,357 @@ +# Copyright (c) 2011-2015 Denis Bilenko. See LICENSE for details. +""" +c-ares based hostname resolver. +""" +from __future__ import absolute_import, print_function, division +import os +import sys + +from _socket import getaddrinfo +from _socket import gaierror +from _socket import error + +from gevent._compat import string_types +from gevent._compat import text_type + +from gevent._compat import reraise +from gevent._compat import PY3 + +from gevent.hub import Waiter +from gevent.hub import get_hub + +from gevent.socket import AF_UNSPEC +from gevent.socket import AF_INET +from gevent.socket import AF_INET6 +from gevent.socket import SOCK_STREAM +from gevent.socket import SOCK_DGRAM +from gevent.socket import SOCK_RAW +from gevent.socket import AI_NUMERICHOST + +from gevent._config import config +from gevent._config import AresSettingMixin + +from .cares import channel, InvalidIP # pylint:disable=import-error,no-name-in-module +from . import _lookup_port as lookup_port +from . import _resolve_special +from . import AbstractResolver + +__all__ = ['Resolver'] + + +class Resolver(AbstractResolver): + """ + Implementation of the resolver API using the `c-ares`_ library. + + This implementation uses the c-ares library to handle name + resolution. c-ares is natively asynchronous at the socket level + and so integrates well into gevent's event loop. + + In comparison to :class:`gevent.resolver_thread.Resolver` (which + delegates to the native system resolver), the implementation is + much more complex. In addition, there have been reports of it not + properly honoring certain system configurations (for example, the + order in which IPv4 and IPv6 results are returned may not match + the threaded resolver). However, because it does not use threads, + it may scale better for applications that make many lookups. + + There are some known differences from the system resolver: + + - ``gethostbyname_ex`` and ``gethostbyaddr`` may return different + for the ``aliaslist`` tuple member. (Sometimes the same, + sometimes in a different order, sometimes a different alias + altogether.) + - ``gethostbyname_ex`` may return the ``ipaddrlist`` in a different order. + - ``getaddrinfo`` does not return ``SOCK_RAW`` results. + - ``getaddrinfo`` may return results in a different order. + - Handling of ``.local`` (mDNS) names may be different, even if they are listed in + the hosts file. + - c-ares will not resolve ``broadcasthost``, even if listed in the hosts file. + - This implementation may raise ``gaierror(4)`` where the system implementation would raise + ``herror(1)``. + - The results for ``localhost`` may be different. In particular, some system + resolvers will return more results from ``getaddrinfo`` than c-ares does, + such as SOCK_DGRAM results, and c-ares may report more ips on a multi-homed + host. + + .. caution:: This module is considered extremely experimental on PyPy, and + due to its implementation in cython, it may be slower. It may also lead to + interpreter crashes. + + .. _c-ares: http://c-ares.haxx.se + """ + + ares_class = channel + + def __init__(self, hub=None, use_environ=True, **kwargs): + if hub is None: + hub = get_hub() + self.hub = hub + if use_environ: + for setting in config.settings.values(): + if isinstance(setting, AresSettingMixin): + value = setting.get() + if value is not None: + kwargs.setdefault(setting.kwarg_name, value) + self.ares = self.ares_class(hub.loop, **kwargs) + self.pid = os.getpid() + self.params = kwargs + self.fork_watcher = hub.loop.fork(ref=False) + self.fork_watcher.start(self._on_fork) + + def __repr__(self): + return '<gevent.resolver_ares.Resolver at 0x%x ares=%r>' % (id(self), self.ares) + + def _on_fork(self): + # NOTE: See comment in gevent.hub.reinit. + pid = os.getpid() + if pid != self.pid: + self.hub.loop.run_callback(self.ares.destroy) + self.ares = self.ares_class(self.hub.loop, **self.params) + self.pid = pid + + def close(self): + if self.ares is not None: + self.hub.loop.run_callback(self.ares.destroy) + self.ares = None + self.fork_watcher.stop() + + def gethostbyname(self, hostname, family=AF_INET): + hostname = _resolve_special(hostname, family) + return self.gethostbyname_ex(hostname, family)[-1][0] + + def gethostbyname_ex(self, hostname, family=AF_INET): + if PY3: + if isinstance(hostname, str): + hostname = hostname.encode('idna') + elif not isinstance(hostname, (bytes, bytearray)): + raise TypeError('Expected es(idna), not %s' % type(hostname).__name__) + else: + if isinstance(hostname, text_type): + hostname = hostname.encode('ascii') + elif not isinstance(hostname, str): + raise TypeError('Expected string, not %s' % type(hostname).__name__) + + while True: + ares = self.ares + try: + waiter = Waiter(self.hub) + ares.gethostbyname(waiter, hostname, family) + result = waiter.get() + if not result[-1]: + raise gaierror(-5, 'No address associated with hostname') + return result + except gaierror: + if ares is self.ares: + if hostname == b'255.255.255.255': + # The stdlib handles this case in 2.7 and 3.x, but ares does not. + # It is tested by test_socket.py in 3.4. + # HACK: So hardcode the expected return. + return ('255.255.255.255', [], ['255.255.255.255']) + raise + # "self.ares is not ares" means channel was destroyed (because we were forked) + + def _lookup_port(self, port, socktype): + return lookup_port(port, socktype) + + def _getaddrinfo(self, host, port, family=0, socktype=0, proto=0, flags=0): + # pylint:disable=too-many-locals,too-many-branches + if isinstance(host, text_type): + host = host.encode('idna') + elif not isinstance(host, str) or (flags & AI_NUMERICHOST): + # this handles cases which do not require network access + # 1) host is None + # 2) host is of an invalid type + # 3) AI_NUMERICHOST flag is set + return getaddrinfo(host, port, family, socktype, proto, flags) + # we also call _socket.getaddrinfo below if family is not one of AF_* + + port, socktypes = self._lookup_port(port, socktype) + + socktype_proto = [(SOCK_STREAM, 6), (SOCK_DGRAM, 17), (SOCK_RAW, 0)] + if socktypes: + socktype_proto = [(x, y) for (x, y) in socktype_proto if x in socktypes] + if proto: + socktype_proto = [(x, y) for (x, y) in socktype_proto if proto == y] + + ares = self.ares + + if family == AF_UNSPEC: + ares_values = Values(self.hub, 2) + ares.gethostbyname(ares_values, host, AF_INET) + ares.gethostbyname(ares_values, host, AF_INET6) + elif family == AF_INET: + ares_values = Values(self.hub, 1) + ares.gethostbyname(ares_values, host, AF_INET) + elif family == AF_INET6: + ares_values = Values(self.hub, 1) + ares.gethostbyname(ares_values, host, AF_INET6) + else: + raise gaierror(5, 'ai_family not supported: %r' % (family, )) + + values = ares_values.get() + if len(values) == 2 and values[0] == values[1]: + values.pop() + + result = [] + result4 = [] + result6 = [] + + for addrs in values: + if addrs.family == AF_INET: + for addr in addrs[-1]: + sockaddr = (addr, port) + for socktype4, proto4 in socktype_proto: + result4.append((AF_INET, socktype4, proto4, '', sockaddr)) + elif addrs.family == AF_INET6: + for addr in addrs[-1]: + if addr == '::1': + dest = result + else: + dest = result6 + sockaddr = (addr, port, 0, 0) + for socktype6, proto6 in socktype_proto: + dest.append((AF_INET6, socktype6, proto6, '', sockaddr)) + + # As of 2016, some platforms return IPV6 first and some do IPV4 first, + # and some might even allow configuration of which is which. For backwards + # compatibility with earlier releases (but not necessarily resolver_thread!) + # we return 4 first. See https://github.com/gevent/gevent/issues/815 for more. + result += result4 + result6 + + if not result: + raise gaierror(-5, 'No address associated with hostname') + + return result + + def getaddrinfo(self, host, port, family=0, socktype=0, proto=0, flags=0): + while True: + ares = self.ares + try: + return self._getaddrinfo(host, port, family, socktype, proto, flags) + except gaierror: + if ares is self.ares: + raise + + def _gethostbyaddr(self, ip_address): + if PY3: + if isinstance(ip_address, str): + ip_address = ip_address.encode('idna') + elif not isinstance(ip_address, (bytes, bytearray)): + raise TypeError('Expected es(idna), not %s' % type(ip_address).__name__) + else: + if isinstance(ip_address, text_type): + ip_address = ip_address.encode('ascii') + elif not isinstance(ip_address, str): + raise TypeError('Expected string, not %s' % type(ip_address).__name__) + + waiter = Waiter(self.hub) + try: + self.ares.gethostbyaddr(waiter, ip_address) + return waiter.get() + except InvalidIP: + result = self._getaddrinfo(ip_address, None, family=AF_UNSPEC, socktype=SOCK_DGRAM) + if not result: + raise + _ip_address = result[0][-1][0] + if isinstance(_ip_address, text_type): + _ip_address = _ip_address.encode('ascii') + if _ip_address == ip_address: + raise + waiter.clear() + self.ares.gethostbyaddr(waiter, _ip_address) + return waiter.get() + + def gethostbyaddr(self, ip_address): + ip_address = _resolve_special(ip_address, AF_UNSPEC) + while True: + ares = self.ares + try: + return self._gethostbyaddr(ip_address) + except gaierror: + if ares is self.ares: + raise + + def _getnameinfo(self, sockaddr, flags): + if not isinstance(flags, int): + raise TypeError('an integer is required') + if not isinstance(sockaddr, tuple): + raise TypeError('getnameinfo() argument 1 must be a tuple') + + address = sockaddr[0] + if not PY3 and isinstance(address, text_type): + address = address.encode('ascii') + + if not isinstance(address, string_types): + raise TypeError('sockaddr[0] must be a string, not %s' % type(address).__name__) + + port = sockaddr[1] + if not isinstance(port, int): + raise TypeError('port must be an integer, not %s' % type(port)) + + waiter = Waiter(self.hub) + result = self._getaddrinfo(address, str(sockaddr[1]), family=AF_UNSPEC, socktype=SOCK_DGRAM) + if not result: + reraise(*sys.exc_info()) + elif len(result) != 1: + raise error('sockaddr resolved to multiple addresses') + family, _socktype, _proto, _name, address = result[0] + + if family == AF_INET: + if len(sockaddr) != 2: + raise error("IPv4 sockaddr must be 2 tuple") + elif family == AF_INET6: + address = address[:2] + sockaddr[2:] + + self.ares.getnameinfo(waiter, address, flags) + node, service = waiter.get() + + if service is None: + if PY3: + # ares docs: "If the query did not complete + # successfully, or one of the values was not + # requested, node or service will be NULL ". Python 2 + # allows that for the service, but Python 3 raises + # an error. This is tested by test_socket in py 3.4 + err = gaierror('nodename nor servname provided, or not known') + err.errno = 8 + raise err + service = '0' + return node, service + + def getnameinfo(self, sockaddr, flags): + while True: + ares = self.ares + try: + return self._getnameinfo(sockaddr, flags) + except gaierror: + if ares is self.ares: + raise + + +class Values(object): + # helper to collect multiple values; ignore errors unless nothing has succeeded + # QQQ could probably be moved somewhere - hub.py? + + __slots__ = ['count', 'values', 'error', 'waiter'] + + def __init__(self, hub, count): + self.count = count + self.values = [] + self.error = None + self.waiter = Waiter(hub) + + def __call__(self, source): + self.count -= 1 + if source.exception is None: + self.values.append(source.value) + else: + self.error = source.exception + if self.count <= 0: + self.waiter.switch(None) + + def get(self): + self.waiter.get() + if self.values: + return self.values + assert error is not None + raise self.error # pylint:disable=raising-bad-type diff --git a/python/gevent/resolver/blocking.py b/python/gevent/resolver/blocking.py new file mode 100644 index 0000000..84cbd9c --- /dev/null +++ b/python/gevent/resolver/blocking.py @@ -0,0 +1,41 @@ +# Copyright (c) 2018 gevent contributors. See LICENSE for details. + +import _socket + +class Resolver(object): + """ + A resolver that directly uses the system's resolver functions. + + .. caution:: + + This resolver is *not* cooperative. + + This resolver has the lowest overhead of any resolver and + typically approaches the speed of the unmodified :mod:`socket` + functions. However, it is not cooperative, so if name resolution + blocks, the entire thread and all its greenlets will be blocked. + + This can be useful during debugging, or it may be a good choice if + your operating system provides a good caching resolver (such as + macOS's Directory Services) that is usually very fast and + functionally non-blocking. + + .. versionchanged:: 1.3a2 + This was previously undocumented and existed in :mod:`gevent.socket`. + + """ + + def __init__(self, hub=None): + pass + + def close(self): + pass + + for method in ( + 'gethostbyname', + 'gethostbyname_ex', + 'getaddrinfo', + 'gethostbyaddr', + 'getnameinfo' + ): + locals()[method] = staticmethod(getattr(_socket, method)) diff --git a/python/gevent/resolver/cares.c b/python/gevent/resolver/cares.c new file mode 100644 index 0000000..e9cf5e0 --- /dev/null +++ b/python/gevent/resolver/cares.c @@ -0,0 +1,15233 @@ +/* Generated by Cython 0.28.5 */ + +/* BEGIN: Cython Metadata +{ + "distutils": { + "define_macros": [ + [ + "FD_SETSIZE", + "1024" + ], + [ + "_WIN32", + "1" + ], + [ + "CARES_STATICLIB", + "" + ], + [ + "CARES_EMBED", + "1" + ] + ], + "depends": [ + "C:\\projects\\gevent\\deps\\c-ares\\ares.h", + "src/gevent/resolver/dnshelper.c", + "src/gevent/resolver\\cares_ntop.h", + "src/gevent/resolver\\cares_pton.h", + "src\\gevent\\resolver\\cares_ntop.h", + "src\\gevent\\resolver\\cares_pton.h", + "src\\gevent\\resolver\\dnshelper.c" + ], + "include_dirs": [ + "src/gevent/resolver", + "C:\\projects\\gevent\\deps\\c-ares" + ], + "libraries": [ + "ws2_32", + "advapi32" + ], + "name": "gevent.resolver.cares", + "sources": [ + "src/gevent/resolver/cares.pyx", + "deps/c-ares\\ares__close_sockets.c", + "deps/c-ares\\ares__get_hostent.c", + "deps/c-ares\\ares__read_line.c", + "deps/c-ares\\ares__timeval.c", + "deps/c-ares\\ares_android.c", + "deps/c-ares\\ares_cancel.c", + "deps/c-ares\\ares_create_query.c", + "deps/c-ares\\ares_data.c", + "deps/c-ares\\ares_destroy.c", + "deps/c-ares\\ares_expand_name.c", + "deps/c-ares\\ares_expand_string.c", + "deps/c-ares\\ares_fds.c", + "deps/c-ares\\ares_free_hostent.c", + "deps/c-ares\\ares_free_string.c", + "deps/c-ares\\ares_getenv.c", + "deps/c-ares\\ares_gethostbyaddr.c", + "deps/c-ares\\ares_gethostbyname.c", + "deps/c-ares\\ares_getnameinfo.c", + "deps/c-ares\\ares_getopt.c", + "deps/c-ares\\ares_getsock.c", + "deps/c-ares\\ares_init.c", + "deps/c-ares\\ares_library_init.c", + "deps/c-ares\\ares_llist.c", + "deps/c-ares\\ares_mkquery.c", + "deps/c-ares\\ares_nowarn.c", + "deps/c-ares\\ares_options.c", + "deps/c-ares\\ares_parse_a_reply.c", + "deps/c-ares\\ares_parse_aaaa_reply.c", + "deps/c-ares\\ares_parse_mx_reply.c", + "deps/c-ares\\ares_parse_naptr_reply.c", + "deps/c-ares\\ares_parse_ns_reply.c", + "deps/c-ares\\ares_parse_ptr_reply.c", + "deps/c-ares\\ares_parse_soa_reply.c", + "deps/c-ares\\ares_parse_srv_reply.c", + "deps/c-ares\\ares_parse_txt_reply.c", + "deps/c-ares\\ares_platform.c", + "deps/c-ares\\ares_process.c", + "deps/c-ares\\ares_query.c", + "deps/c-ares\\ares_search.c", + "deps/c-ares\\ares_send.c", + "deps/c-ares\\ares_strcasecmp.c", + "deps/c-ares\\ares_strdup.c", + "deps/c-ares\\ares_strerror.c", + "deps/c-ares\\ares_timeout.c", + "deps/c-ares\\ares_version.c", + "deps/c-ares\\ares_writev.c", + "deps/c-ares\\bitncmp.c", + "deps/c-ares\\inet_net_pton.c", + "deps/c-ares\\inet_ntop.c", + "deps/c-ares\\windows_port.c" + ] + }, + "module_name": "gevent.resolver.cares" +} +END: Cython Metadata */ + +#define PY_SSIZE_T_CLEAN +#include "Python.h" +#ifndef Py_PYTHON_H + #error Python headers needed to compile C extensions, please install development version of Python. +#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000) + #error Cython requires Python 2.6+ or Python 3.3+. +#else +#define CYTHON_ABI "0_28_5" +#define CYTHON_FUTURE_DIVISION 0 +#include <stddef.h> +#ifndef offsetof + #define offsetof(type, member) ( (size_t) & ((type*)0) -> member ) +#endif +#if !defined(WIN32) && !defined(MS_WINDOWS) + #ifndef __stdcall + #define __stdcall + #endif + #ifndef __cdecl + #define __cdecl + #endif + #ifndef __fastcall + #define __fastcall + #endif +#endif +#ifndef DL_IMPORT + #define DL_IMPORT(t) t +#endif +#ifndef DL_EXPORT + #define DL_EXPORT(t) t +#endif +#define __PYX_COMMA , +#ifndef HAVE_LONG_LONG + #if PY_VERSION_HEX >= 0x02070000 + #define HAVE_LONG_LONG + #endif +#endif +#ifndef PY_LONG_LONG + #define PY_LONG_LONG LONG_LONG +#endif +#ifndef Py_HUGE_VAL + #define Py_HUGE_VAL HUGE_VAL +#endif +#ifdef PYPY_VERSION + #define CYTHON_COMPILING_IN_PYPY 1 + #define CYTHON_COMPILING_IN_PYSTON 0 + #define CYTHON_COMPILING_IN_CPYTHON 0 + #undef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 0 + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #if PY_VERSION_HEX < 0x03050000 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #elif !defined(CYTHON_USE_ASYNC_SLOTS) + #define CYTHON_USE_ASYNC_SLOTS 1 + #endif + #undef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 0 + #undef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 0 + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #undef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 1 + #undef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 0 + #undef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 0 + #undef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 0 + #undef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 0 + #undef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT 0 + #undef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE 0 +#elif defined(PYSTON_VERSION) + #define CYTHON_COMPILING_IN_PYPY 0 + #define CYTHON_COMPILING_IN_PYSTON 1 + #define CYTHON_COMPILING_IN_CPYTHON 0 + #ifndef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 1 + #endif + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #undef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 0 + #ifndef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 1 + #endif + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #ifndef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 0 + #endif + #ifndef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 1 + #endif + #ifndef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 1 + #endif + #undef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 0 + #undef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 0 + #undef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT 0 + #undef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE 0 +#else + #define CYTHON_COMPILING_IN_PYPY 0 + #define CYTHON_COMPILING_IN_PYSTON 0 + #define CYTHON_COMPILING_IN_CPYTHON 1 + #ifndef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 1 + #endif + #if PY_VERSION_HEX < 0x02070000 + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #elif !defined(CYTHON_USE_PYTYPE_LOOKUP) + #define CYTHON_USE_PYTYPE_LOOKUP 1 + #endif + #if PY_MAJOR_VERSION < 3 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #elif !defined(CYTHON_USE_ASYNC_SLOTS) + #define CYTHON_USE_ASYNC_SLOTS 1 + #endif + #if PY_VERSION_HEX < 0x02070000 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #elif !defined(CYTHON_USE_PYLONG_INTERNALS) + #define CYTHON_USE_PYLONG_INTERNALS 1 + #endif + #ifndef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 1 + #endif + #ifndef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 1 + #endif + #if PY_VERSION_HEX < 0x030300F0 + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #elif !defined(CYTHON_USE_UNICODE_WRITER) + #define CYTHON_USE_UNICODE_WRITER 1 + #endif + #ifndef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 0 + #endif + #ifndef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 1 + #endif + #ifndef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 1 + #endif + #ifndef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 1 + #endif + #ifndef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 1 + #endif + #ifndef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT (0 && PY_VERSION_HEX >= 0x03050000) + #endif + #ifndef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1) + #endif +#endif +#if !defined(CYTHON_FAST_PYCCALL) +#define CYTHON_FAST_PYCCALL (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1) +#endif +#if CYTHON_USE_PYLONG_INTERNALS + #include "longintrepr.h" + #undef SHIFT + #undef BASE + #undef MASK +#endif +#ifndef __has_attribute + #define __has_attribute(x) 0 +#endif +#ifndef __has_cpp_attribute + #define __has_cpp_attribute(x) 0 +#endif +#ifndef CYTHON_RESTRICT + #if defined(__GNUC__) + #define CYTHON_RESTRICT __restrict__ + #elif defined(_MSC_VER) && _MSC_VER >= 1400 + #define CYTHON_RESTRICT __restrict + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define CYTHON_RESTRICT restrict + #else + #define CYTHON_RESTRICT + #endif +#endif +#ifndef CYTHON_UNUSED +# if defined(__GNUC__) +# if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) +# define CYTHON_UNUSED __attribute__ ((__unused__)) +# else +# define CYTHON_UNUSED +# endif +# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER)) +# define CYTHON_UNUSED __attribute__ ((__unused__)) +# else +# define CYTHON_UNUSED +# endif +#endif +#ifndef CYTHON_MAYBE_UNUSED_VAR +# if defined(__cplusplus) + template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { } +# else +# define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x) +# endif +#endif +#ifndef CYTHON_NCP_UNUSED +# if CYTHON_COMPILING_IN_CPYTHON +# define CYTHON_NCP_UNUSED +# else +# define CYTHON_NCP_UNUSED CYTHON_UNUSED +# endif +#endif +#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None) +#ifdef _MSC_VER + #ifndef _MSC_STDINT_H_ + #if _MSC_VER < 1300 + typedef unsigned char uint8_t; + typedef unsigned int uint32_t; + #else + typedef unsigned __int8 uint8_t; + typedef unsigned __int32 uint32_t; + #endif + #endif +#else + #include <stdint.h> +#endif +#ifndef CYTHON_FALLTHROUGH + #if defined(__cplusplus) && __cplusplus >= 201103L + #if __has_cpp_attribute(fallthrough) + #define CYTHON_FALLTHROUGH [[fallthrough]] + #elif __has_cpp_attribute(clang::fallthrough) + #define CYTHON_FALLTHROUGH [[clang::fallthrough]] + #elif __has_cpp_attribute(gnu::fallthrough) + #define CYTHON_FALLTHROUGH [[gnu::fallthrough]] + #endif + #endif + #ifndef CYTHON_FALLTHROUGH + #if __has_attribute(fallthrough) + #define CYTHON_FALLTHROUGH __attribute__((fallthrough)) + #else + #define CYTHON_FALLTHROUGH + #endif + #endif + #if defined(__clang__ ) && defined(__apple_build_version__) + #if __apple_build_version__ < 7000000 + #undef CYTHON_FALLTHROUGH + #define CYTHON_FALLTHROUGH + #endif + #endif +#endif + +#ifndef CYTHON_INLINE + #if defined(__clang__) + #define CYTHON_INLINE __inline__ __attribute__ ((__unused__)) + #elif defined(__GNUC__) + #define CYTHON_INLINE __inline__ + #elif defined(_MSC_VER) + #define CYTHON_INLINE __inline + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define CYTHON_INLINE inline + #else + #define CYTHON_INLINE + #endif +#endif + +#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag) + #define Py_OptimizeFlag 0 +#endif +#define __PYX_BUILD_PY_SSIZE_T "n" +#define CYTHON_FORMAT_SSIZE_T "z" +#if PY_MAJOR_VERSION < 3 + #define __Pyx_BUILTIN_MODULE_NAME "__builtin__" + #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\ + PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) + #define __Pyx_DefaultClassType PyClass_Type +#else + #define __Pyx_BUILTIN_MODULE_NAME "builtins" + #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\ + PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) + #define __Pyx_DefaultClassType PyType_Type +#endif +#ifndef Py_TPFLAGS_CHECKTYPES + #define Py_TPFLAGS_CHECKTYPES 0 +#endif +#ifndef Py_TPFLAGS_HAVE_INDEX + #define Py_TPFLAGS_HAVE_INDEX 0 +#endif +#ifndef Py_TPFLAGS_HAVE_NEWBUFFER + #define Py_TPFLAGS_HAVE_NEWBUFFER 0 +#endif +#ifndef Py_TPFLAGS_HAVE_FINALIZE + #define Py_TPFLAGS_HAVE_FINALIZE 0 +#endif +#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL) + #ifndef METH_FASTCALL + #define METH_FASTCALL 0x80 + #endif + typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs); + typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args, + Py_ssize_t nargs, PyObject *kwnames); +#else + #define __Pyx_PyCFunctionFast _PyCFunctionFast + #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords +#endif +#if CYTHON_FAST_PYCCALL +#define __Pyx_PyFastCFunction_Check(func)\ + ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS))))) +#else +#define __Pyx_PyFastCFunction_Check(func) 0 +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc) + #define PyObject_Malloc(s) PyMem_Malloc(s) + #define PyObject_Free(p) PyMem_Free(p) + #define PyObject_Realloc(p) PyMem_Realloc(p) +#endif +#if CYTHON_COMPILING_IN_PYSTON + #define __Pyx_PyCode_HasFreeVars(co) PyCode_HasFreeVars(co) + #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno) +#else + #define __Pyx_PyCode_HasFreeVars(co) (PyCode_GetNumFree(co) > 0) + #define __Pyx_PyFrame_SetLineNumber(frame, lineno) (frame)->f_lineno = (lineno) +#endif +#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000 + #define __Pyx_PyThreadState_Current PyThreadState_GET() +#elif PY_VERSION_HEX >= 0x03060000 + #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet() +#elif PY_VERSION_HEX >= 0x03000000 + #define __Pyx_PyThreadState_Current PyThreadState_GET() +#else + #define __Pyx_PyThreadState_Current _PyThreadState_Current +#endif +#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT) +#include "pythread.h" +#define Py_tss_NEEDS_INIT 0 +typedef int Py_tss_t; +static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) { + *key = PyThread_create_key(); + return 0; // PyThread_create_key reports success always +} +static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) { + Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t)); + *key = Py_tss_NEEDS_INIT; + return key; +} +static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) { + PyObject_Free(key); +} +static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) { + return *key != Py_tss_NEEDS_INIT; +} +static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) { + PyThread_delete_key(*key); + *key = Py_tss_NEEDS_INIT; +} +static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) { + return PyThread_set_key_value(*key, value); +} +static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) { + return PyThread_get_key_value(*key); +} +#endif // TSS (Thread Specific Storage) API +#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized) +#define __Pyx_PyDict_NewPresized(n) ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n)) +#else +#define __Pyx_PyDict_NewPresized(n) PyDict_New() +#endif +#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION + #define __Pyx_PyNumber_Divide(x,y) PyNumber_TrueDivide(x,y) + #define __Pyx_PyNumber_InPlaceDivide(x,y) PyNumber_InPlaceTrueDivide(x,y) +#else + #define __Pyx_PyNumber_Divide(x,y) PyNumber_Divide(x,y) + #define __Pyx_PyNumber_InPlaceDivide(x,y) PyNumber_InPlaceDivide(x,y) +#endif +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS +#define __Pyx_PyDict_GetItemStr(dict, name) _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash) +#else +#define __Pyx_PyDict_GetItemStr(dict, name) PyDict_GetItem(dict, name) +#endif +#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND) + #define CYTHON_PEP393_ENABLED 1 + #define __Pyx_PyUnicode_READY(op) (likely(PyUnicode_IS_READY(op)) ?\ + 0 : _PyUnicode_Ready((PyObject *)(op))) + #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_LENGTH(u) + #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i) + #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u) PyUnicode_MAX_CHAR_VALUE(u) + #define __Pyx_PyUnicode_KIND(u) PyUnicode_KIND(u) + #define __Pyx_PyUnicode_DATA(u) PyUnicode_DATA(u) + #define __Pyx_PyUnicode_READ(k, d, i) PyUnicode_READ(k, d, i) + #define __Pyx_PyUnicode_WRITE(k, d, i, ch) PyUnicode_WRITE(k, d, i, ch) + #define __Pyx_PyUnicode_IS_TRUE(u) (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u))) +#else + #define CYTHON_PEP393_ENABLED 0 + #define PyUnicode_1BYTE_KIND 1 + #define PyUnicode_2BYTE_KIND 2 + #define PyUnicode_4BYTE_KIND 4 + #define __Pyx_PyUnicode_READY(op) (0) + #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_SIZE(u) + #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i])) + #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u) ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111) + #define __Pyx_PyUnicode_KIND(u) (sizeof(Py_UNICODE)) + #define __Pyx_PyUnicode_DATA(u) ((void*)PyUnicode_AS_UNICODE(u)) + #define __Pyx_PyUnicode_READ(k, d, i) ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i])) + #define __Pyx_PyUnicode_WRITE(k, d, i, ch) (((void)(k)), ((Py_UNICODE*)d)[i] = ch) + #define __Pyx_PyUnicode_IS_TRUE(u) (0 != PyUnicode_GET_SIZE(u)) +#endif +#if CYTHON_COMPILING_IN_PYPY + #define __Pyx_PyUnicode_Concat(a, b) PyNumber_Add(a, b) + #define __Pyx_PyUnicode_ConcatSafe(a, b) PyNumber_Add(a, b) +#else + #define __Pyx_PyUnicode_Concat(a, b) PyUnicode_Concat(a, b) + #define __Pyx_PyUnicode_ConcatSafe(a, b) ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\ + PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b)) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains) + #define PyUnicode_Contains(u, s) PySequence_Contains(u, s) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check) + #define PyByteArray_Check(obj) PyObject_TypeCheck(obj, &PyByteArray_Type) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format) + #define PyObject_Format(obj, fmt) PyObject_CallMethod(obj, "__format__", "O", fmt) +#endif +#define __Pyx_PyString_FormatSafe(a, b) ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b)) +#define __Pyx_PyUnicode_FormatSafe(a, b) ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b)) +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyString_Format(a, b) PyUnicode_Format(a, b) +#else + #define __Pyx_PyString_Format(a, b) PyString_Format(a, b) +#endif +#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII) + #define PyObject_ASCII(o) PyObject_Repr(o) +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyBaseString_Type PyUnicode_Type + #define PyStringObject PyUnicodeObject + #define PyString_Type PyUnicode_Type + #define PyString_Check PyUnicode_Check + #define PyString_CheckExact PyUnicode_CheckExact + #define PyObject_Unicode PyObject_Str +#endif +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj) + #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj) +#else + #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj)) + #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj)) +#endif +#ifndef PySet_CheckExact + #define PySet_CheckExact(obj) (Py_TYPE(obj) == &PySet_Type) +#endif +#if CYTHON_ASSUME_SAFE_MACROS + #define __Pyx_PySequence_SIZE(seq) Py_SIZE(seq) +#else + #define __Pyx_PySequence_SIZE(seq) PySequence_Size(seq) +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyIntObject PyLongObject + #define PyInt_Type PyLong_Type + #define PyInt_Check(op) PyLong_Check(op) + #define PyInt_CheckExact(op) PyLong_CheckExact(op) + #define PyInt_FromString PyLong_FromString + #define PyInt_FromUnicode PyLong_FromUnicode + #define PyInt_FromLong PyLong_FromLong + #define PyInt_FromSize_t PyLong_FromSize_t + #define PyInt_FromSsize_t PyLong_FromSsize_t + #define PyInt_AsLong PyLong_AsLong + #define PyInt_AS_LONG PyLong_AS_LONG + #define PyInt_AsSsize_t PyLong_AsSsize_t + #define PyInt_AsUnsignedLongMask PyLong_AsUnsignedLongMask + #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask + #define PyNumber_Int PyNumber_Long +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyBoolObject PyLongObject +#endif +#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY + #ifndef PyUnicode_InternFromString + #define PyUnicode_InternFromString(s) PyUnicode_FromString(s) + #endif +#endif +#if PY_VERSION_HEX < 0x030200A4 + typedef long Py_hash_t; + #define __Pyx_PyInt_FromHash_t PyInt_FromLong + #define __Pyx_PyInt_AsHash_t PyInt_AsLong +#else + #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t + #define __Pyx_PyInt_AsHash_t PyInt_AsSsize_t +#endif +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func)) +#else + #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass) +#endif +#if CYTHON_USE_ASYNC_SLOTS + #if PY_VERSION_HEX >= 0x030500B1 + #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods + #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async) + #else + #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved)) + #endif +#else + #define __Pyx_PyType_AsAsync(obj) NULL +#endif +#ifndef __Pyx_PyAsyncMethodsStruct + typedef struct { + unaryfunc am_await; + unaryfunc am_aiter; + unaryfunc am_anext; + } __Pyx_PyAsyncMethodsStruct; +#endif + +#if defined(WIN32) || defined(MS_WINDOWS) + #define _USE_MATH_DEFINES +#endif +#include <math.h> +#ifdef NAN +#define __PYX_NAN() ((float) NAN) +#else +static CYTHON_INLINE float __PYX_NAN() { + float value; + memset(&value, 0xFF, sizeof(value)); + return value; +} +#endif +#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL) +#define __Pyx_truncl trunc +#else +#define __Pyx_truncl truncl +#endif + + +#define __PYX_ERR(f_index, lineno, Ln_error) \ +{ \ + __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \ +} + +#ifndef __PYX_EXTERN_C + #ifdef __cplusplus + #define __PYX_EXTERN_C extern "C" + #else + #define __PYX_EXTERN_C extern + #endif +#endif + +#define __PYX_HAVE__gevent__resolver__cares +#define __PYX_HAVE_API__gevent__resolver__cares +/* Early includes */ +#include "ares.h" +#include "cares_pton.h" +#include <string.h> +#include <stdio.h> +#include "dnshelper.c" +#ifdef _OPENMP +#include <omp.h> +#endif /* _OPENMP */ + +#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS) +#define CYTHON_WITHOUT_ASSERTIONS +#endif + +typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding; + const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry; + +#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0 +#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0 +#define __PYX_DEFAULT_STRING_ENCODING "" +#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString +#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize +#define __Pyx_uchar_cast(c) ((unsigned char)c) +#define __Pyx_long_cast(x) ((long)x) +#define __Pyx_fits_Py_ssize_t(v, type, is_signed) (\ + (sizeof(type) < sizeof(Py_ssize_t)) ||\ + (sizeof(type) > sizeof(Py_ssize_t) &&\ + likely(v < (type)PY_SSIZE_T_MAX ||\ + v == (type)PY_SSIZE_T_MAX) &&\ + (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\ + v == (type)PY_SSIZE_T_MIN))) ||\ + (sizeof(type) == sizeof(Py_ssize_t) &&\ + (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\ + v == (type)PY_SSIZE_T_MAX))) ) +#if defined (__cplusplus) && __cplusplus >= 201103L + #include <cstdlib> + #define __Pyx_sst_abs(value) std::abs(value) +#elif SIZEOF_INT >= SIZEOF_SIZE_T + #define __Pyx_sst_abs(value) abs(value) +#elif SIZEOF_LONG >= SIZEOF_SIZE_T + #define __Pyx_sst_abs(value) labs(value) +#elif defined (_MSC_VER) + #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value)) +#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define __Pyx_sst_abs(value) llabs(value) +#elif defined (__GNUC__) + #define __Pyx_sst_abs(value) __builtin_llabs(value) +#else + #define __Pyx_sst_abs(value) ((value<0) ? -value : value) +#endif +static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*); +static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length); +#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s)) +#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l) +#define __Pyx_PyBytes_FromString PyBytes_FromString +#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*); +#if PY_MAJOR_VERSION < 3 + #define __Pyx_PyStr_FromString __Pyx_PyBytes_FromString + #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize +#else + #define __Pyx_PyStr_FromString __Pyx_PyUnicode_FromString + #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize +#endif +#define __Pyx_PyBytes_AsWritableString(s) ((char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsWritableSString(s) ((signed char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsWritableUString(s) ((unsigned char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsString(s) ((const char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsSString(s) ((const signed char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsUString(s) ((const unsigned char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyObject_AsWritableString(s) ((char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsWritableSString(s) ((signed char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsWritableUString(s) ((unsigned char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsSString(s) ((const signed char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsUString(s) ((const unsigned char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_FromCString(s) __Pyx_PyObject_FromString((const char*)s) +#define __Pyx_PyBytes_FromCString(s) __Pyx_PyBytes_FromString((const char*)s) +#define __Pyx_PyByteArray_FromCString(s) __Pyx_PyByteArray_FromString((const char*)s) +#define __Pyx_PyStr_FromCString(s) __Pyx_PyStr_FromString((const char*)s) +#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s) +static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) { + const Py_UNICODE *u_end = u; + while (*u_end++) ; + return (size_t)(u_end - u - 1); +} +#define __Pyx_PyUnicode_FromUnicode(u) PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u)) +#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode +#define __Pyx_PyUnicode_AsUnicode PyUnicode_AsUnicode +#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj) +#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None) +static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b); +static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*); +static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x); +#define __Pyx_PySequence_Tuple(obj)\ + (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj)) +static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*); +static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t); +#if CYTHON_ASSUME_SAFE_MACROS +#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x)) +#else +#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x) +#endif +#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x)) +#if PY_MAJOR_VERSION >= 3 +#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x)) +#else +#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x)) +#endif +#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x)) +#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII +static int __Pyx_sys_getdefaultencoding_not_ascii; +static int __Pyx_init_sys_getdefaultencoding_params(void) { + PyObject* sys; + PyObject* default_encoding = NULL; + PyObject* ascii_chars_u = NULL; + PyObject* ascii_chars_b = NULL; + const char* default_encoding_c; + sys = PyImport_ImportModule("sys"); + if (!sys) goto bad; + default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL); + Py_DECREF(sys); + if (!default_encoding) goto bad; + default_encoding_c = PyBytes_AsString(default_encoding); + if (!default_encoding_c) goto bad; + if (strcmp(default_encoding_c, "ascii") == 0) { + __Pyx_sys_getdefaultencoding_not_ascii = 0; + } else { + char ascii_chars[128]; + int c; + for (c = 0; c < 128; c++) { + ascii_chars[c] = c; + } + __Pyx_sys_getdefaultencoding_not_ascii = 1; + ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL); + if (!ascii_chars_u) goto bad; + ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL); + if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) { + PyErr_Format( + PyExc_ValueError, + "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.", + default_encoding_c); + goto bad; + } + Py_DECREF(ascii_chars_u); + Py_DECREF(ascii_chars_b); + } + Py_DECREF(default_encoding); + return 0; +bad: + Py_XDECREF(default_encoding); + Py_XDECREF(ascii_chars_u); 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+ +/*--- Type declarations ---*/ +struct __pyx_obj_6gevent_8resolver_5cares_result; +struct __pyx_obj_6gevent_8resolver_5cares_channel; +struct __pyx_opt_args_6gevent_8resolver_5cares__convert_cares_flags; +struct __pyx_opt_args_6gevent_8resolver_5cares_7channel_set_servers; + +/* "gevent/resolver/cares.pyx":146 + * + * + * cpdef _convert_cares_flags(int flags, int default=cares.ARES_NI_LOOKUPHOST|cares.ARES_NI_LOOKUPSERVICE): # <<<<<<<<<<<<<< + * if _cares_flag_map is None: + * _prepare_cares_flag_map() + */ +struct __pyx_opt_args_6gevent_8resolver_5cares__convert_cares_flags { + int __pyx_n; + int __pyx_default; +}; + +/* "gevent/resolver/cares.pyx":323 + * self.channel = NULL + * + * cpdef set_servers(self, servers=None): # <<<<<<<<<<<<<< + * if not self.channel: + * raise gaierror(cares.ARES_EDESTRUCTION, 'this ares channel has been destroyed') + */ +struct __pyx_opt_args_6gevent_8resolver_5cares_7channel_set_servers { + int __pyx_n; + PyObject *servers; +}; + +/* "gevent/resolver/cares.pyx":173 + * + * + * cdef class result: # <<<<<<<<<<<<<< + * cdef public object value + * cdef public object exception + */ +struct __pyx_obj_6gevent_8resolver_5cares_result { + PyObject_HEAD + PyObject *value; + PyObject *exception; +}; + + +/* "gevent/resolver/cares.pyx":254 + * + * + * cdef class channel: # <<<<<<<<<<<<<< + * + * cdef public object loop + */ +struct __pyx_obj_6gevent_8resolver_5cares_channel { + PyObject_HEAD + struct __pyx_vtabstruct_6gevent_8resolver_5cares_channel *__pyx_vtab; + PyObject *loop; + struct ares_channeldata *channel; + PyObject *_watchers; + PyObject *_timer; +}; + + + +struct __pyx_vtabstruct_6gevent_8resolver_5cares_channel { + PyObject *(*set_servers)(struct __pyx_obj_6gevent_8resolver_5cares_channel *, int __pyx_skip_dispatch, struct __pyx_opt_args_6gevent_8resolver_5cares_7channel_set_servers *__pyx_optional_args); + PyObject *(*_sock_state_callback)(struct __pyx_obj_6gevent_8resolver_5cares_channel *, int, int, int); + PyObject *(*_getnameinfo)(struct __pyx_obj_6gevent_8resolver_5cares_channel *, PyObject *, PyObject *, int, int __pyx_skip_dispatch); +}; +static struct __pyx_vtabstruct_6gevent_8resolver_5cares_channel *__pyx_vtabptr_6gevent_8resolver_5cares_channel; 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r = NULL; __Pyx_DECREF(tmp);}} while(0) + +/* PyObjectGetAttrStr.proto */ +#if CYTHON_USE_TYPE_SLOTS +static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n) +#endif + +/* GetBuiltinName.proto */ +static PyObject *__Pyx_GetBuiltinName(PyObject *name); + +/* Import.proto */ +static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level); + +/* PyErrExceptionMatches.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err) +static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err); +#else +#define __Pyx_PyErr_ExceptionMatches(err) PyErr_ExceptionMatches(err) +#endif + +/* PyThreadStateGet.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyThreadState_declare PyThreadState *__pyx_tstate; +#define __Pyx_PyThreadState_assign __pyx_tstate = __Pyx_PyThreadState_Current; +#define __Pyx_PyErr_Occurred() __pyx_tstate->curexc_type +#else +#define __Pyx_PyThreadState_declare +#define __Pyx_PyThreadState_assign +#define __Pyx_PyErr_Occurred() PyErr_Occurred() +#endif + +/* PyErrFetchRestore.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL) +#define __Pyx_ErrRestoreWithState(type, value, tb) __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb) +#define __Pyx_ErrFetchWithState(type, value, tb) __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb) +#define __Pyx_ErrRestore(type, value, tb) __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb) +#define __Pyx_ErrFetch(type, value, tb) __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb); +static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#if CYTHON_COMPILING_IN_CPYTHON +#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL)) +#else +#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc) +#endif +#else +#define __Pyx_PyErr_Clear() PyErr_Clear() +#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc) +#define __Pyx_ErrRestoreWithState(type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetchWithState(type, value, tb) PyErr_Fetch(type, value, tb) +#define __Pyx_ErrRestoreInState(tstate, type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetchInState(tstate, type, value, tb) PyErr_Fetch(type, value, tb) +#define __Pyx_ErrRestore(type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetch(type, value, tb) PyErr_Fetch(type, value, tb) +#endif + +/* GetAttr.proto */ +static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *, PyObject *); + +/* GetAttr3.proto */ +static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *, PyObject *, PyObject *); + +/* GetModuleGlobalName.proto */ +static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name); + +/* RaiseTooManyValuesToUnpack.proto */ +static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected); + +/* RaiseNeedMoreValuesToUnpack.proto */ +static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index); + +/* IterFinish.proto */ +static CYTHON_INLINE int __Pyx_IterFinish(void); + +/* UnpackItemEndCheck.proto */ +static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected); + +/* PyFunctionFastCall.proto */ +#if CYTHON_FAST_PYCALL +#define __Pyx_PyFunction_FastCall(func, args, nargs)\ + __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL) +#if 1 || PY_VERSION_HEX < 0x030600B1 +static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs); +#else +#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs) +#endif +#endif + +/* PyCFunctionFastCall.proto */ +#if CYTHON_FAST_PYCCALL +static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs); +#else +#define __Pyx_PyCFunction_FastCall(func, args, nargs) (assert(0), NULL) +#endif + +/* PyObjectCall.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw); +#else +#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw) +#endif + +/* RaiseException.proto */ +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause); + +/* RaiseDoubleKeywords.proto */ +static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name); + +/* ParseKeywords.proto */ +static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\ + PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\ + const char* function_name); + +/* RaiseArgTupleInvalid.proto */ +static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact, + Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found); + +/* PyObjectCallMethO.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg); +#endif + +/* PyObjectCallOneArg.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg); + +/* WriteUnraisableException.proto */ +static void __Pyx_WriteUnraisable(const char *name, int clineno, + int lineno, const char *filename, + int full_traceback, int nogil); + +/* PyObjectSetAttrStr.proto */ +#if CYTHON_USE_TYPE_SLOTS +#define __Pyx_PyObject_DelAttrStr(o,n) __Pyx_PyObject_SetAttrStr(o, n, NULL) +static CYTHON_INLINE int __Pyx_PyObject_SetAttrStr(PyObject* obj, PyObject* attr_name, PyObject* value); +#else +#define __Pyx_PyObject_DelAttrStr(o,n) PyObject_DelAttr(o,n) +#define __Pyx_PyObject_SetAttrStr(o,n,v) PyObject_SetAttr(o,n,v) +#endif + +/* RaiseNoneIterError.proto */ +static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void); + +/* ExtTypeTest.proto */ +static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type); + +/* SaveResetException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_ExceptionSave(type, value, tb) __Pyx__ExceptionSave(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#define __Pyx_ExceptionReset(type, value, tb) __Pyx__ExceptionReset(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb); +#else +#define __Pyx_ExceptionSave(type, value, tb) PyErr_GetExcInfo(type, value, tb) +#define __Pyx_ExceptionReset(type, value, tb) PyErr_SetExcInfo(type, value, tb) +#endif + +/* GetException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_GetException(type, value, tb) __Pyx__GetException(__pyx_tstate, type, value, tb) +static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#else +static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb); +#endif + +/* PyObjectCallNoArg.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func); +#else +#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL) +#endif + +/* GetItemInt.proto */ +#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\ + (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\ + __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) :\ + (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) :\ + __Pyx_GetItemInt_Generic(o, to_py_func(i)))) +#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\ + (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\ + __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\ + (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL)) +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i, + int wraparound, int boundscheck); +#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\ + (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\ + __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\ + (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL)) +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i, + int wraparound, int boundscheck); +static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j); +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, + int is_list, int wraparound, int boundscheck); + +/* pyobject_as_double.proto */ +static double __Pyx__PyObject_AsDouble(PyObject* obj); +#if CYTHON_COMPILING_IN_PYPY +#define __Pyx_PyObject_AsDouble(obj)\ +(likely(PyFloat_CheckExact(obj)) ? PyFloat_AS_DOUBLE(obj) :\ + likely(PyInt_CheckExact(obj)) ?\ + PyFloat_AsDouble(obj) : __Pyx__PyObject_AsDouble(obj)) +#else +#define __Pyx_PyObject_AsDouble(obj)\ +((likely(PyFloat_CheckExact(obj))) ?\ + PyFloat_AS_DOUBLE(obj) : __Pyx__PyObject_AsDouble(obj)) +#endif + +/* py_dict_clear.proto */ +#define __Pyx_PyDict_Clear(d) (PyDict_Clear(d), 0) + +/* SwapException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_ExceptionSwap(type, value, tb) __Pyx__ExceptionSwap(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#else +static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb); +#endif + +/* dict_getitem_default.proto */ +static PyObject* __Pyx_PyDict_GetItemDefault(PyObject* d, PyObject* key, PyObject* default_value); + +/* UnpackUnboundCMethod.proto */ +typedef struct { + PyObject *type; + PyObject **method_name; + PyCFunction func; + PyObject *method; + int flag; +} __Pyx_CachedCFunction; + +/* CallUnboundCMethod1.proto */ +static PyObject* __Pyx__CallUnboundCMethod1(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg); +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_CallUnboundCMethod1(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg); +#else +#define __Pyx_CallUnboundCMethod1(cfunc, self, arg) __Pyx__CallUnboundCMethod1(cfunc, self, arg) +#endif + +/* CallUnboundCMethod2.proto */ +static PyObject* __Pyx__CallUnboundCMethod2(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg1, PyObject* arg2); +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030600B1 +static CYTHON_INLINE PyObject *__Pyx_CallUnboundCMethod2(__Pyx_CachedCFunction *cfunc, PyObject *self, PyObject *arg1, PyObject *arg2); +#else +#define __Pyx_CallUnboundCMethod2(cfunc, self, arg1, arg2) __Pyx__CallUnboundCMethod2(cfunc, self, arg1, arg2) +#endif + +/* py_dict_pop.proto */ +static CYTHON_INLINE PyObject *__Pyx_PyDict_Pop(PyObject *d, PyObject *key, PyObject *default_value); + +/* ArgTypeTest.proto */ +#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\ + ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\ + __Pyx__ArgTypeTest(obj, type, name, exact)) +static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact); + +/* FastTypeChecks.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type) +static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b); +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type); +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2); +#else +#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type) +#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type) +#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2)) +#endif +#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception) + +/* PyObject_GenericGetAttrNoDict.proto */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr +#endif + +/* PyObject_GenericGetAttr.proto */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GenericGetAttr PyObject_GenericGetAttr +#endif + +/* SetVTable.proto */ +static int __Pyx_SetVtable(PyObject *dict, void *vtable); + +/* ImportFrom.proto */ +static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name); + +/* CalculateMetaclass.proto */ +static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases); + +/* Py3ClassCreate.proto */ +static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name, PyObject *qualname, + PyObject *mkw, PyObject *modname, PyObject *doc); +static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases, PyObject *dict, + PyObject *mkw, int calculate_metaclass, int allow_py2_metaclass); + +/* FetchCommonType.proto */ +static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type); + +/* CythonFunction.proto */ +#define __Pyx_CyFunction_USED 1 +#define __Pyx_CYFUNCTION_STATICMETHOD 0x01 +#define __Pyx_CYFUNCTION_CLASSMETHOD 0x02 +#define __Pyx_CYFUNCTION_CCLASS 0x04 +#define __Pyx_CyFunction_GetClosure(f)\ + (((__pyx_CyFunctionObject *) (f))->func_closure) +#define __Pyx_CyFunction_GetClassObj(f)\ + (((__pyx_CyFunctionObject *) (f))->func_classobj) +#define __Pyx_CyFunction_Defaults(type, f)\ + ((type *)(((__pyx_CyFunctionObject *) (f))->defaults)) +#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\ + ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g) +typedef struct { + PyCFunctionObject func; +#if PY_VERSION_HEX < 0x030500A0 + PyObject *func_weakreflist; +#endif + PyObject *func_dict; + PyObject *func_name; + PyObject *func_qualname; + PyObject *func_doc; + PyObject *func_globals; + PyObject *func_code; + PyObject *func_closure; + PyObject *func_classobj; + void *defaults; + int defaults_pyobjects; + int flags; + PyObject *defaults_tuple; + PyObject *defaults_kwdict; + PyObject *(*defaults_getter)(PyObject *); + PyObject *func_annotations; +} __pyx_CyFunctionObject; +static PyTypeObject *__pyx_CyFunctionType = 0; +#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code)\ + __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code) +static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml, + int flags, PyObject* qualname, + PyObject *self, + PyObject *module, PyObject *globals, + PyObject* code); +static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m, + size_t size, + int pyobjects); +static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m, + PyObject *tuple); +static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m, + PyObject *dict); +static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m, + PyObject *dict); +static int __pyx_CyFunction_init(void); + +/* SetNameInClass.proto */ +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 +#define __Pyx_SetNameInClass(ns, name, value)\ + (likely(PyDict_CheckExact(ns)) ? _PyDict_SetItem_KnownHash(ns, name, value, ((PyASCIIObject *) name)->hash) : PyObject_SetItem(ns, name, value)) +#elif CYTHON_COMPILING_IN_CPYTHON +#define __Pyx_SetNameInClass(ns, name, value)\ + (likely(PyDict_CheckExact(ns)) ? PyDict_SetItem(ns, name, value) : PyObject_SetItem(ns, name, value)) +#else +#define __Pyx_SetNameInClass(ns, name, value) PyObject_SetItem(ns, name, value) +#endif + +/* CLineInTraceback.proto */ +#ifdef CYTHON_CLINE_IN_TRACEBACK +#define __Pyx_CLineForTraceback(tstate, c_line) (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0) +#else +static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line); +#endif + +/* CodeObjectCache.proto */ +typedef struct { + PyCodeObject* code_object; + int code_line; +} __Pyx_CodeObjectCacheEntry; +struct __Pyx_CodeObjectCache { + int count; + int max_count; + __Pyx_CodeObjectCacheEntry* entries; +}; +static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL}; +static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line); +static PyCodeObject *__pyx_find_code_object(int code_line); +static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object); + +/* AddTraceback.proto */ +static void __Pyx_AddTraceback(const char *funcname, int c_line, + int py_line, const char *filename); + +/* CIntToPy.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value); + +/* CIntToPy.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value); + +/* CIntFromPy.proto */ +static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *); + +/* CIntFromPy.proto */ +static CYTHON_INLINE unsigned short __Pyx_PyInt_As_unsigned_short(PyObject *); + +/* CIntFromPy.proto */ +static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *); + +/* CheckBinaryVersion.proto */ +static int __Pyx_check_binary_version(void); + +/* PyIdentifierFromString.proto */ +#if !defined(__Pyx_PyIdentifier_FromString) +#if PY_MAJOR_VERSION < 3 + #define __Pyx_PyIdentifier_FromString(s) PyString_FromString(s) +#else + #define __Pyx_PyIdentifier_FromString(s) PyUnicode_FromString(s) +#endif +#endif + +/* ModuleImport.proto */ +static PyObject *__Pyx_ImportModule(const char *name); + +/* TypeImport.proto */ +static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict); + +/* InitStrings.proto */ +static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); + +static PyObject *__pyx_f_6gevent_8resolver_5cares_7channel_set_servers(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, int __pyx_skip_dispatch, struct __pyx_opt_args_6gevent_8resolver_5cares_7channel_set_servers *__pyx_optional_args); /* proto*/ +static PyObject *__pyx_f_6gevent_8resolver_5cares_7channel__sock_state_callback(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, int __pyx_v_socket, int __pyx_v_read, int __pyx_v_write); /* proto*/ +static PyObject *__pyx_f_6gevent_8resolver_5cares_7channel__getnameinfo(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_callback, PyObject *__pyx_v_sockaddr, int __pyx_v_flags, int __pyx_skip_dispatch); /* proto*/ + +/* Module declarations from 'gevent.resolver.libcares' */ + +/* Module declarations from 'libc.string' */ + +/* Module declarations from 'libc.stdio' */ + +/* Module declarations from '__builtin__' */ + +/* Module declarations from 'cpython.type' */ +static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0; + +/* Module declarations from 'cpython' */ + +/* Module declarations from 'cpython.object' */ + +/* Module declarations from 'cpython.ref' */ + +/* Module declarations from 'cpython.mem' */ + +/* Module declarations from 'gevent.resolver.cares' */ +static PyTypeObject *__pyx_ptype_6gevent_8resolver_5cares_result = 0; +static PyTypeObject *__pyx_ptype_6gevent_8resolver_5cares_channel = 0; +static PyObject *__pyx_v_6gevent_8resolver_5cares_string_types = 0; +static PyObject *__pyx_v_6gevent_8resolver_5cares_text_type = 0; +static PyObject *__pyx_f_6gevent_8resolver_5cares__prepare_cares_flag_map(void); /*proto*/ +static PyObject *__pyx_f_6gevent_8resolver_5cares__convert_cares_flags(int, int __pyx_skip_dispatch, struct __pyx_opt_args_6gevent_8resolver_5cares__convert_cares_flags *__pyx_optional_args); /*proto*/ +static PyObject *__pyx_f_6gevent_8resolver_5cares_strerror(PyObject *, int __pyx_skip_dispatch); /*proto*/ +static void __pyx_f_6gevent_8resolver_5cares_gevent_sock_state_callback(void *, int, int, int); /*proto*/ +static void __pyx_f_6gevent_8resolver_5cares_gevent_ares_host_callback(void *, int, int, struct hostent *); /*proto*/ +static void __pyx_f_6gevent_8resolver_5cares_gevent_ares_nameinfo_callback(void *, int, int, char *, char *); /*proto*/ +#define __Pyx_MODULE_NAME "gevent.resolver.cares" +extern int __pyx_module_is_main_gevent__resolver__cares; +int __pyx_module_is_main_gevent__resolver__cares = 0; + +/* Implementation of 'gevent.resolver.cares' */ +static PyObject *__pyx_builtin_ValueError; +static PyObject *__pyx_builtin_id; +static PyObject *__pyx_builtin_MemoryError; +static PyObject *__pyx_builtin_TypeError; +static const char __pyx_k__2[] = ","; +static const char __pyx_k_fd[] = "fd"; +static const char __pyx_k_id[] = "id"; +static const char __pyx_k_io[] = "io"; +static const char __pyx_k_all[] = "__all__"; +static const char __pyx_k_cls[] = "cls"; +static const char __pyx_k_doc[] = "__doc__"; +static const char __pyx_k_get[] = "get"; +static const char __pyx_k_new[] = "__new__"; +static const char __pyx_k_pop[] = "pop"; +static const char __pyx_k_s_r[] = "%s(%r)"; +static const char __pyx_k_s_s[] = "%s: %s"; +static const char __pyx_k_sys[] = "sys"; +static const char __pyx_k_addr[] = "addr"; +static const char __pyx_k_loop[] = "loop"; +static const char __pyx_k_main[] = "__main__"; +static const char __pyx_k_name[] = "__name__"; +static const char __pyx_k_self[] = "self"; +static const char __pyx_k_stop[] = "stop"; +static const char __pyx_k_test[] = "__test__"; +static const char __pyx_k_again[] = "again"; +static const char __pyx_k_ascii[] = "ascii"; +static const char __pyx_k_class[] = "__class__"; +static const char __pyx_k_close[] = "close"; +static const char __pyx_k_flags[] = "flags"; +static const char __pyx_k_ndots[] = "ndots"; +static const char __pyx_k_split[] = "split"; +static const char __pyx_k_start[] = "start"; +static const char __pyx_k_timer[] = "timer"; +static const char __pyx_k_tries[] = "tries"; +static const char __pyx_k_value[] = "value"; +static const char __pyx_k_encode[] = "encode"; +static const char __pyx_k_events[] = "events"; +static const char __pyx_k_family[] = "family"; +static const char __pyx_k_import[] = "__import__"; +static const char __pyx_k_module[] = "__module__"; +static const char __pyx_k_name_2[] = "name"; +static const char __pyx_k_socket[] = "_socket"; +static const char __pyx_k_TIMEOUT[] = "TIMEOUT"; +static const char __pyx_k_channel[] = "channel"; +static const char __pyx_k_default[] = "default"; +static const char __pyx_k_destroy[] = "destroy"; +static const char __pyx_k_prepare[] = "__prepare__"; +static const char __pyx_k_servers[] = "servers"; +static const char __pyx_k_timeout[] = "timeout"; +static const char __pyx_k_unicode[] = "unicode"; +static const char __pyx_k_watcher[] = "watcher"; +static const char __pyx_k_ARES_EOF[] = "ARES_EOF"; +static const char __pyx_k_NI_DGRAM[] = "NI_DGRAM"; +static const char __pyx_k_builtins[] = "__builtins__"; +static const char __pyx_k_callback[] = "callback"; +static const char __pyx_k_exc_info[] = "exc_info"; +static const char __pyx_k_gaierror[] = "gaierror"; +static const char __pyx_k_iterable[] = "iterable"; +static const char __pyx_k_on_timer[] = "_on_timer"; +static const char __pyx_k_qualname[] = "__qualname__"; +static const char __pyx_k_sockaddr[] = "sockaddr"; +static const char __pyx_k_tcp_port[] = "tcp_port"; +static const char __pyx_k_udp_port[] = "udp_port"; +static const char __pyx_k_InvalidIP[] = "InvalidIP"; +static const char __pyx_k_NI_NOFQDN[] = "NI_NOFQDN"; +static const char __pyx_k_TypeError[] = "TypeError"; +static const char __pyx_k_exception[] = "exception"; +static const char __pyx_k_metaclass[] = "__metaclass__"; +static const char __pyx_k_ARES_EFILE[] = "ARES_EFILE"; +static const char __pyx_k_ValueError[] = "ValueError"; +static const char __pyx_k_basestring[] = "basestring"; +static const char __pyx_k_getnewargs[] = "__getnewargs__"; +static const char __pyx_k_process_fd[] = "_process_fd"; +static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__"; +static const char __pyx_k_ARES_ENOMEM[] = "ARES_ENOMEM"; +static const char __pyx_k_MemoryError[] = "MemoryError"; +static const char __pyx_k_NI_NAMEREQD[] = "NI_NAMEREQD"; +static const char __pyx_k_ares_errors[] = "_ares_errors"; +static const char __pyx_k_getnameinfo[] = "_getnameinfo"; +static const char __pyx_k_pass_events[] = "pass_events"; +static const char __pyx_k_set_servers[] = "set_servers"; +static const char __pyx_k_ARES_EBADSTR[] = "ARES_EBADSTR"; +static const char __pyx_k_ARES_ENODATA[] = "ARES_ENODATA"; +static const char __pyx_k_ARES_ENONAME[] = "ARES_ENONAME"; +static const char __pyx_k_ARES_ENOTIMP[] = "ARES_ENOTIMP"; +static const char __pyx_k_ARES_SUCCESS[] = "ARES_SUCCESS"; +static const char __pyx_k_handle_error[] = "handle_error"; +static const char __pyx_k_version_info[] = "version_info"; +static const char __pyx_k_ARES_EBADNAME[] = "ARES_EBADNAME"; +static const char __pyx_k_ARES_EBADRESP[] = "ARES_EBADRESP"; +static const char __pyx_k_ARES_EFORMERR[] = "ARES_EFORMERR"; +static const char __pyx_k_ARES_EREFUSED[] = "ARES_EREFUSED"; +static const char __pyx_k_ARES_ETIMEOUT[] = "ARES_ETIMEOUT"; +static const char __pyx_k_s_exception_r[] = "%s(exception=%r)"; +static const char __pyx_k_ARES_EBADFLAGS[] = "ARES_EBADFLAGS"; +static const char __pyx_k_ARES_EBADHINTS[] = "ARES_EBADHINTS"; +static const char __pyx_k_ARES_EBADQUERY[] = "ARES_EBADQUERY"; +static const char __pyx_k_ARES_ENOTFOUND[] = "ARES_ENOTFOUND"; +static const char __pyx_k_ARES_ESERVFAIL[] = "ARES_ESERVFAIL"; +static const char __pyx_k_NI_NUMERICHOST[] = "NI_NUMERICHOST"; +static const char __pyx_k_NI_NUMERICSERV[] = "NI_NUMERICSERV"; +static const char __pyx_k_cares_flag_map[] = "_cares_flag_map"; +static const char __pyx_k_ARES_EBADFAMILY[] = "ARES_EBADFAMILY"; +static const char __pyx_k_ARES_ECANCELLED[] = "ARES_ECANCELLED"; +static const char __pyx_k_ARES_FLAG_IGNTC[] = "ARES_FLAG_IGNTC"; +static const char __pyx_k_ARES_FLAG_USEVC[] = "ARES_FLAG_USEVC"; +static const char __pyx_k_ares_host_result[] = "ares_host_result"; +static const char __pyx_k_ARES_ECONNREFUSED[] = "ARES_ECONNREFUSED"; +static const char __pyx_k_ARES_EDESTRUCTION[] = "ARES_EDESTRUCTION"; +static const char __pyx_k_ARES_FLAG_PRIMARY[] = "ARES_FLAG_PRIMARY"; +static const char __pyx_k_ARES_ELOADIPHLPAPI[] = "ARES_ELOADIPHLPAPI"; +static const char __pyx_k_ARES_FLAG_NOSEARCH[] = "ARES_FLAG_NOSEARCH"; +static const char __pyx_k_ARES_FLAG_STAYOPEN[] = "ARES_FLAG_STAYOPEN"; +static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback"; +static const char __pyx_k_ARES_FLAG_NOALIASES[] = "ARES_FLAG_NOALIASES"; +static const char __pyx_k_ARES_FLAG_NORECURSE[] = "ARES_FLAG_NORECURSE"; +static const char __pyx_k_ARES_ENOTINITIALIZED[] = "ARES_ENOTINITIALIZED"; +static const char __pyx_k_ARES_FLAG_NOCHECKRESP[] = "ARES_FLAG_NOCHECKRESP"; +static const char __pyx_k_gevent_resolver_cares[] = "gevent.resolver.cares"; +static const char __pyx_k_s_value_r_exception_r[] = "%s(value=%r, exception=%r)"; +static const char __pyx_k_ares_host_result___new[] = "ares_host_result.__new__"; +static const char __pyx_k_expected_a_tuple_got_r[] = "expected a tuple, got %r"; +static const char __pyx_k_Invalid_value_for_port_r[] = "Invalid value for port: %r"; +static const char __pyx_k_ARES_EADDRGETNETWORKPARAMS[] = "ARES_EADDRGETNETWORKPARAMS"; +static const char __pyx_k_Bad_value_for_ai_flags_0x_x[] = "Bad value for ai_flags: 0x%x"; +static const char __pyx_k_ares_host_result___getnewargs[] = "ares_host_result.__getnewargs__"; +static const char __pyx_k_src_gevent_resolver_cares_pyx[] = "src\\gevent\\resolver\\cares.pyx"; +static const char __pyx_k_s_at_0x_x__timer_r__watchers_s[] = "<%s at 0x%x _timer=%r _watchers[%s]>"; +static const char __pyx_k_this_ares_channel_has_been_destr[] = "this ares channel has been destroyed"; +static PyObject *__pyx_n_s_ARES_EADDRGETNETWORKPARAMS; +static PyObject *__pyx_n_s_ARES_EBADFAMILY; +static PyObject *__pyx_n_s_ARES_EBADFLAGS; +static PyObject *__pyx_n_s_ARES_EBADHINTS; +static PyObject *__pyx_n_s_ARES_EBADNAME; +static PyObject *__pyx_n_s_ARES_EBADQUERY; +static PyObject *__pyx_n_s_ARES_EBADRESP; +static PyObject *__pyx_n_s_ARES_EBADSTR; +static PyObject *__pyx_n_s_ARES_ECANCELLED; +static PyObject *__pyx_n_s_ARES_ECONNREFUSED; +static PyObject *__pyx_n_s_ARES_EDESTRUCTION; +static PyObject *__pyx_n_s_ARES_EFILE; +static PyObject *__pyx_n_s_ARES_EFORMERR; +static PyObject *__pyx_n_s_ARES_ELOADIPHLPAPI; +static PyObject *__pyx_n_s_ARES_ENODATA; +static PyObject *__pyx_n_s_ARES_ENOMEM; +static PyObject *__pyx_n_s_ARES_ENONAME; +static PyObject *__pyx_n_s_ARES_ENOTFOUND; +static PyObject *__pyx_n_s_ARES_ENOTIMP; +static PyObject *__pyx_n_s_ARES_ENOTINITIALIZED; +static PyObject *__pyx_n_s_ARES_EOF; +static PyObject *__pyx_n_s_ARES_EREFUSED; +static PyObject *__pyx_n_s_ARES_ESERVFAIL; +static PyObject *__pyx_n_s_ARES_ETIMEOUT; +static PyObject *__pyx_n_s_ARES_FLAG_IGNTC; +static PyObject *__pyx_n_s_ARES_FLAG_NOALIASES; +static PyObject *__pyx_n_s_ARES_FLAG_NOCHECKRESP; +static PyObject *__pyx_n_s_ARES_FLAG_NORECURSE; +static PyObject *__pyx_n_s_ARES_FLAG_NOSEARCH; +static PyObject *__pyx_n_s_ARES_FLAG_PRIMARY; +static PyObject *__pyx_n_s_ARES_FLAG_STAYOPEN; +static PyObject *__pyx_n_s_ARES_FLAG_USEVC; +static PyObject *__pyx_n_s_ARES_SUCCESS; +static PyObject *__pyx_kp_s_Bad_value_for_ai_flags_0x_x; +static PyObject *__pyx_n_s_InvalidIP; +static PyObject *__pyx_kp_s_Invalid_value_for_port_r; +static PyObject *__pyx_n_s_MemoryError; +static PyObject *__pyx_n_s_NI_DGRAM; +static PyObject *__pyx_n_s_NI_NAMEREQD; +static PyObject *__pyx_n_s_NI_NOFQDN; +static PyObject *__pyx_n_s_NI_NUMERICHOST; +static PyObject *__pyx_n_s_NI_NUMERICSERV; +static PyObject *__pyx_n_s_TIMEOUT; +static PyObject *__pyx_n_s_TypeError; +static PyObject *__pyx_n_s_ValueError; +static PyObject *__pyx_kp_s__2; +static PyObject *__pyx_n_s_addr; +static PyObject *__pyx_n_s_again; +static PyObject *__pyx_n_s_all; +static PyObject *__pyx_n_s_ares_errors; +static PyObject *__pyx_n_s_ares_host_result; +static PyObject *__pyx_n_s_ares_host_result___getnewargs; +static PyObject *__pyx_n_s_ares_host_result___new; +static PyObject *__pyx_n_s_ascii; +static PyObject *__pyx_n_s_basestring; +static PyObject *__pyx_n_s_builtins; +static PyObject *__pyx_n_s_callback; +static PyObject *__pyx_n_s_cares_flag_map; +static PyObject *__pyx_n_s_channel; +static PyObject *__pyx_n_s_class; +static PyObject *__pyx_n_s_cline_in_traceback; +static PyObject *__pyx_n_s_close; +static PyObject *__pyx_n_s_cls; +static PyObject *__pyx_n_s_default; +static PyObject *__pyx_n_s_destroy; +static PyObject *__pyx_n_s_doc; +static PyObject *__pyx_n_s_encode; +static PyObject *__pyx_n_s_events; +static PyObject *__pyx_n_s_exc_info; +static PyObject *__pyx_n_s_exception; +static PyObject *__pyx_kp_s_expected_a_tuple_got_r; +static PyObject *__pyx_n_s_family; +static PyObject *__pyx_n_s_fd; +static PyObject *__pyx_n_s_flags; +static PyObject *__pyx_n_s_gaierror; +static PyObject *__pyx_n_s_get; +static PyObject *__pyx_n_s_getnameinfo; +static PyObject *__pyx_n_s_getnewargs; +static PyObject *__pyx_n_s_gevent_resolver_cares; +static PyObject *__pyx_n_s_handle_error; +static PyObject *__pyx_n_s_id; +static PyObject *__pyx_n_s_import; +static PyObject *__pyx_n_s_io; +static PyObject *__pyx_n_s_iterable; +static PyObject *__pyx_n_s_loop; +static PyObject *__pyx_n_s_main; +static PyObject *__pyx_n_s_metaclass; +static PyObject *__pyx_n_s_module; +static PyObject *__pyx_n_s_name; +static PyObject *__pyx_n_s_name_2; +static PyObject *__pyx_n_s_ndots; +static PyObject *__pyx_n_s_new; +static PyObject *__pyx_n_s_on_timer; +static PyObject *__pyx_n_s_pass_events; +static PyObject *__pyx_n_s_pop; +static PyObject *__pyx_n_s_prepare; +static PyObject *__pyx_n_s_process_fd; +static PyObject *__pyx_n_s_pyx_vtable; +static PyObject *__pyx_n_s_qualname; +static PyObject *__pyx_kp_s_s_at_0x_x__timer_r__watchers_s; +static PyObject *__pyx_kp_s_s_exception_r; +static PyObject *__pyx_kp_s_s_r; +static PyObject *__pyx_kp_s_s_s; +static PyObject *__pyx_kp_s_s_value_r_exception_r; +static PyObject *__pyx_n_s_self; +static PyObject *__pyx_n_s_servers; +static PyObject *__pyx_n_s_set_servers; +static PyObject *__pyx_n_s_sockaddr; +static PyObject *__pyx_n_s_socket; +static PyObject *__pyx_n_s_split; +static PyObject *__pyx_kp_s_src_gevent_resolver_cares_pyx; +static PyObject *__pyx_n_s_start; +static PyObject *__pyx_n_s_stop; +static PyObject *__pyx_n_s_sys; +static PyObject *__pyx_n_s_tcp_port; +static PyObject *__pyx_n_s_test; +static PyObject *__pyx_kp_s_this_ares_channel_has_been_destr; +static PyObject *__pyx_n_s_timeout; +static PyObject *__pyx_n_s_timer; +static PyObject *__pyx_n_s_tries; +static PyObject *__pyx_n_s_udp_port; +static PyObject *__pyx_n_s_unicode; +static PyObject *__pyx_n_s_value; +static PyObject *__pyx_n_s_version_info; +static PyObject *__pyx_n_s_watcher; +static PyObject *__pyx_pf_6gevent_8resolver_5cares__convert_cares_flags(CYTHON_UNUSED PyObject *__pyx_self, int __pyx_v_flags, int __pyx_v_default); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_2strerror(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_code); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_6result___init__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self, PyObject *__pyx_v_value, PyObject *__pyx_v_exception); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_6result_2__repr__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_6result_4successful(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_6result_6get(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_6result_5value___get__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_6result_5value_2__set__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self, PyObject *__pyx_v_value); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_6result_5value_4__del__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_6result_9exception___get__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_6result_9exception_2__set__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self, PyObject *__pyx_v_value); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_6result_9exception_4__del__(struct __pyx_obj_6gevent_8resolver_5cares_result *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_16ares_host_result___new__(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_cls, PyObject *__pyx_v_family, PyObject *__pyx_v_iterable); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_16ares_host_result_2__getnewargs__(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_7channel___init__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_loop, PyObject *__pyx_v_flags, PyObject *__pyx_v_timeout, PyObject *__pyx_v_tries, PyObject *__pyx_v_ndots, PyObject *__pyx_v_udp_port, PyObject *__pyx_v_tcp_port, PyObject *__pyx_v_servers); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_2__repr__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_4destroy(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static void __pyx_pf_6gevent_8resolver_5cares_7channel_6__dealloc__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_8set_servers(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_servers); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_10_on_timer(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_12_process_fd(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, int __pyx_v_events, PyObject *__pyx_v_watcher); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_14gethostbyname(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_callback, char *__pyx_v_name, int __pyx_v_family); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_16gethostbyaddr(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_callback, char *__pyx_v_addr); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_18_getnameinfo(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_callback, PyObject *__pyx_v_sockaddr, int __pyx_v_flags); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_20getnameinfo(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_callback, PyObject *__pyx_v_sockaddr, int __pyx_v_flags); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_4loop___get__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_7channel_4loop_2__set__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_value); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_7channel_4loop_4__del__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_9_watchers___get__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_7channel_9_watchers_2__set__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self, PyObject *__pyx_v_value); /* proto */ +static int __pyx_pf_6gevent_8resolver_5cares_7channel_9_watchers_4__del__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_6gevent_8resolver_5cares_7channel_6_timer___get__(struct __pyx_obj_6gevent_8resolver_5cares_channel *__pyx_v_self); /* proto */ +static 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{(char *)"_timer", __pyx_getprop_6gevent_8resolver_5cares_7channel__timer, __pyx_setprop_6gevent_8resolver_5cares_7channel__timer, (char *)0, 0}, + {0, 0, 0, 0, 0} +}; + +static PyTypeObject __pyx_type_6gevent_8resolver_5cares_channel = { + PyVarObject_HEAD_INIT(0, 0) + "gevent.resolver.cares.channel", /*tp_name*/ + sizeof(struct __pyx_obj_6gevent_8resolver_5cares_channel), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + __pyx_tp_dealloc_6gevent_8resolver_5cares_channel, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + #if PY_MAJOR_VERSION < 3 + 0, /*tp_compare*/ + #endif + #if PY_MAJOR_VERSION >= 3 + 0, /*tp_as_async*/ + #endif + __pyx_pw_6gevent_8resolver_5cares_7channel_3__repr__, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + 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+ PyObject *module = 0; + PyObject *global_dict = 0; + PyObject *empty_dict = 0; + PyObject *list; + #if PY_MAJOR_VERSION < 3 + PyObject *py_import; + py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import); + if (!py_import) + goto bad; + #endif + if (from_list) + list = from_list; + else { + empty_list = PyList_New(0); + if (!empty_list) + goto bad; + list = empty_list; + } + global_dict = PyModule_GetDict(__pyx_m); + if (!global_dict) + goto bad; + empty_dict = PyDict_New(); + if (!empty_dict) + goto bad; + { + #if PY_MAJOR_VERSION >= 3 + if (level == -1) { + if (strchr(__Pyx_MODULE_NAME, '.')) { + module = PyImport_ImportModuleLevelObject( + name, global_dict, empty_dict, list, 1); + if (!module) { + if (!PyErr_ExceptionMatches(PyExc_ImportError)) + goto bad; + PyErr_Clear(); + } + } + level = 0; + } + #endif + if (!module) { + #if PY_MAJOR_VERSION < 3 + PyObject *py_level = PyInt_FromLong(level); + if (!py_level) + goto bad; + module = PyObject_CallFunctionObjArgs(py_import, + name, global_dict, empty_dict, list, py_level, NULL); + Py_DECREF(py_level); + #else + module = PyImport_ImportModuleLevelObject( + name, global_dict, empty_dict, list, level); + #endif + } + } +bad: + #if PY_MAJOR_VERSION < 3 + Py_XDECREF(py_import); + #endif + Py_XDECREF(empty_list); + Py_XDECREF(empty_dict); + return module; +} + +/* PyErrExceptionMatches */ +#if CYTHON_FAST_THREAD_STATE +static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) { + Py_ssize_t i, n; + n = PyTuple_GET_SIZE(tuple); +#if PY_MAJOR_VERSION >= 3 + for (i=0; i<n; i++) { + if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1; + } +#endif + for (i=0; i<n; i++) { + if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1; + } + return 0; +} +static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) { + PyObject *exc_type = tstate->curexc_type; + if (exc_type == err) return 1; + if (unlikely(!exc_type)) return 0; + if (unlikely(PyTuple_Check(err))) + return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err); + return __Pyx_PyErr_GivenExceptionMatches(exc_type, err); +} +#endif + +/* PyErrFetchRestore */ +#if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + tmp_type = tstate->curexc_type; + tmp_value = tstate->curexc_value; + tmp_tb = tstate->curexc_traceback; + tstate->curexc_type = type; + tstate->curexc_value = value; + tstate->curexc_traceback = tb; + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +} +static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + *type = tstate->curexc_type; + *value = tstate->curexc_value; + *tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; +} +#endif + +/* GetAttr */ +static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) { +#if CYTHON_USE_TYPE_SLOTS +#if PY_MAJOR_VERSION >= 3 + if (likely(PyUnicode_Check(n))) +#else + if (likely(PyString_Check(n))) +#endif + return __Pyx_PyObject_GetAttrStr(o, n); +#endif + return PyObject_GetAttr(o, n); +} + +/* GetAttr3 */ +static PyObject *__Pyx_GetAttr3Default(PyObject *d) { + __Pyx_PyThreadState_declare + __Pyx_PyThreadState_assign + if (unlikely(!__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError))) + return NULL; + __Pyx_PyErr_Clear(); + Py_INCREF(d); + return d; +} +static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject *d) { + PyObject *r = __Pyx_GetAttr(o, n); + return (likely(r)) ? r : __Pyx_GetAttr3Default(d); +} + +/* GetModuleGlobalName */ +static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) { + PyObject *result; +#if !CYTHON_AVOID_BORROWED_REFS +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 + result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash); + if (likely(result)) { + Py_INCREF(result); + } else if (unlikely(PyErr_Occurred())) { + result = NULL; + } else { +#else + result = PyDict_GetItem(__pyx_d, name); + if (likely(result)) { + Py_INCREF(result); + } else { +#endif +#else + result = PyObject_GetItem(__pyx_d, name); + if (!result) { + PyErr_Clear(); +#endif + result = __Pyx_GetBuiltinName(name); + } + return result; +} + +/* RaiseTooManyValuesToUnpack */ + static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) { + PyErr_Format(PyExc_ValueError, + "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected); +} + +/* RaiseNeedMoreValuesToUnpack */ + static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) { + PyErr_Format(PyExc_ValueError, + "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack", + index, (index == 1) ? "" : "s"); +} + +/* IterFinish */ + static CYTHON_INLINE int __Pyx_IterFinish(void) { +#if CYTHON_FAST_THREAD_STATE + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject* exc_type = tstate->curexc_type; + if (unlikely(exc_type)) { + if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) { + PyObject *exc_value, *exc_tb; + exc_value = tstate->curexc_value; + exc_tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; + Py_DECREF(exc_type); + Py_XDECREF(exc_value); + Py_XDECREF(exc_tb); + return 0; + } else { + return -1; + } + } + return 0; +#else + if (unlikely(PyErr_Occurred())) { + if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) { + PyErr_Clear(); + return 0; + } else { + return -1; + } + } + return 0; +#endif +} + +/* UnpackItemEndCheck */ + static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) { + if (unlikely(retval)) { + Py_DECREF(retval); + __Pyx_RaiseTooManyValuesError(expected); + return -1; + } else { + return __Pyx_IterFinish(); + } + return 0; +} + +/* PyFunctionFastCall */ + #if CYTHON_FAST_PYCALL +#include "frameobject.h" +static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na, + PyObject *globals) { + PyFrameObject *f; + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject **fastlocals; + Py_ssize_t i; + PyObject *result; + assert(globals != NULL); + /* XXX Perhaps we should create a specialized + PyFrame_New() that doesn't take locals, but does + take builtins without sanity checking them. + */ + assert(tstate != NULL); + f = PyFrame_New(tstate, co, globals, NULL); + if (f == NULL) { + return NULL; + } + fastlocals = f->f_localsplus; + for (i = 0; i < na; i++) { + Py_INCREF(*args); + fastlocals[i] = *args++; + } + result = PyEval_EvalFrameEx(f,0); + ++tstate->recursion_depth; + Py_DECREF(f); + --tstate->recursion_depth; + return result; +} +#if 1 || PY_VERSION_HEX < 0x030600B1 +static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) { + PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func); + PyObject *globals = PyFunction_GET_GLOBALS(func); + PyObject *argdefs = PyFunction_GET_DEFAULTS(func); + PyObject *closure; +#if PY_MAJOR_VERSION >= 3 + PyObject *kwdefs; +#endif + PyObject *kwtuple, **k; + PyObject **d; + Py_ssize_t nd; + Py_ssize_t nk; + PyObject *result; + assert(kwargs == NULL || PyDict_Check(kwargs)); + nk = kwargs ? PyDict_Size(kwargs) : 0; + if (Py_EnterRecursiveCall((char*)" while calling a Python object")) { + return NULL; + } + if ( +#if PY_MAJOR_VERSION >= 3 + co->co_kwonlyargcount == 0 && +#endif + likely(kwargs == NULL || nk == 0) && + co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) { + if (argdefs == NULL && co->co_argcount == nargs) { + result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals); + goto done; + } + else if (nargs == 0 && argdefs != NULL + && co->co_argcount == Py_SIZE(argdefs)) { + /* function called with no arguments, but all parameters have + a default value: use default values as arguments .*/ + args = &PyTuple_GET_ITEM(argdefs, 0); + result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals); + goto done; + } + } + if (kwargs != NULL) { + Py_ssize_t pos, i; + kwtuple = PyTuple_New(2 * nk); + if (kwtuple == NULL) { + result = NULL; + goto done; + } + k = &PyTuple_GET_ITEM(kwtuple, 0); + pos = i = 0; + while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) { + Py_INCREF(k[i]); + Py_INCREF(k[i+1]); + i += 2; + } + nk = i / 2; + } + else { + kwtuple = NULL; + k = NULL; + } + closure = PyFunction_GET_CLOSURE(func); +#if PY_MAJOR_VERSION >= 3 + kwdefs = PyFunction_GET_KW_DEFAULTS(func); +#endif + if (argdefs != NULL) { + d = &PyTuple_GET_ITEM(argdefs, 0); + nd = Py_SIZE(argdefs); + } + else { + d = NULL; + nd = 0; + } +#if PY_MAJOR_VERSION >= 3 + result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL, + args, nargs, + k, (int)nk, + d, (int)nd, kwdefs, closure); +#else + result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL, + args, nargs, + k, (int)nk, + d, (int)nd, closure); +#endif + Py_XDECREF(kwtuple); +done: + Py_LeaveRecursiveCall(); + return result; +} +#endif +#endif + +/* PyCFunctionFastCall */ + #if CYTHON_FAST_PYCCALL +static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) { + PyCFunctionObject *func = (PyCFunctionObject*)func_obj; + PyCFunction meth = PyCFunction_GET_FUNCTION(func); + PyObject *self = PyCFunction_GET_SELF(func); + int flags = PyCFunction_GET_FLAGS(func); + assert(PyCFunction_Check(func)); + assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS))); + assert(nargs >= 0); + assert(nargs == 0 || args != NULL); + /* _PyCFunction_FastCallDict() must not be called with an exception set, + because it may clear it (directly or indirectly) and so the + caller loses its exception */ + assert(!PyErr_Occurred()); + if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) { + return (*((__Pyx_PyCFunctionFastWithKeywords)meth)) (self, args, nargs, NULL); + } else { + return (*((__Pyx_PyCFunctionFast)meth)) (self, args, nargs); + } +} +#endif + +/* PyObjectCall */ + #if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) { + PyObject *result; + ternaryfunc call = func->ob_type->tp_call; + if (unlikely(!call)) + return PyObject_Call(func, arg, kw); + if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) + return NULL; + result = (*call)(func, arg, kw); + Py_LeaveRecursiveCall(); + if (unlikely(!result) && unlikely(!PyErr_Occurred())) { + PyErr_SetString( + PyExc_SystemError, + "NULL result without error in PyObject_Call"); + } + return result; +} +#endif + +/* RaiseException */ + #if PY_MAJOR_VERSION < 3 +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, + CYTHON_UNUSED PyObject *cause) { + __Pyx_PyThreadState_declare + Py_XINCREF(type); + if (!value || value == Py_None) + value = NULL; + else + Py_INCREF(value); + if (!tb || tb == Py_None) + tb = NULL; + else { + Py_INCREF(tb); + if (!PyTraceBack_Check(tb)) { + PyErr_SetString(PyExc_TypeError, + "raise: arg 3 must be a traceback or None"); + goto raise_error; + } + } + if (PyType_Check(type)) { +#if CYTHON_COMPILING_IN_PYPY + if (!value) { + Py_INCREF(Py_None); + value = Py_None; + } +#endif + PyErr_NormalizeException(&type, &value, &tb); + } else { + if (value) { + PyErr_SetString(PyExc_TypeError, + "instance exception may not have a separate value"); + goto raise_error; + } + value = type; + type = (PyObject*) Py_TYPE(type); + Py_INCREF(type); + if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) { + PyErr_SetString(PyExc_TypeError, + "raise: exception class must be a subclass of BaseException"); + goto raise_error; + } + } + __Pyx_PyThreadState_assign + __Pyx_ErrRestore(type, value, tb); + return; +raise_error: + Py_XDECREF(value); + Py_XDECREF(type); + Py_XDECREF(tb); + return; +} +#else +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) { + PyObject* owned_instance = NULL; + if (tb == Py_None) { + tb = 0; + } else if (tb && !PyTraceBack_Check(tb)) { + PyErr_SetString(PyExc_TypeError, + "raise: arg 3 must be a traceback or None"); + goto bad; + } + if (value == Py_None) + value = 0; + if (PyExceptionInstance_Check(type)) { + if (value) { + PyErr_SetString(PyExc_TypeError, + "instance exception may not have a separate value"); + goto bad; + } + value = type; + type = (PyObject*) Py_TYPE(value); + } else if (PyExceptionClass_Check(type)) { + PyObject *instance_class = NULL; + if (value && PyExceptionInstance_Check(value)) { + instance_class = (PyObject*) Py_TYPE(value); + if (instance_class != type) { + int is_subclass = PyObject_IsSubclass(instance_class, type); + if (!is_subclass) { + instance_class = NULL; + } else if (unlikely(is_subclass == -1)) { + goto bad; + } else { + type = instance_class; + } + } + } + if (!instance_class) { + PyObject *args; + if (!value) + args = PyTuple_New(0); + else if (PyTuple_Check(value)) { + Py_INCREF(value); + args = value; + } else + args = PyTuple_Pack(1, value); + if (!args) + goto bad; + owned_instance = PyObject_Call(type, args, NULL); + Py_DECREF(args); + if (!owned_instance) + goto bad; + value = owned_instance; + if (!PyExceptionInstance_Check(value)) { + PyErr_Format(PyExc_TypeError, + "calling %R should have returned an instance of " + "BaseException, not %R", + type, Py_TYPE(value)); + goto bad; + } + } + } else { + PyErr_SetString(PyExc_TypeError, + "raise: exception class must be a subclass of BaseException"); + goto bad; + } + if (cause) { + PyObject *fixed_cause; + if (cause == Py_None) { + fixed_cause = NULL; + } else if (PyExceptionClass_Check(cause)) { + fixed_cause = PyObject_CallObject(cause, NULL); + if (fixed_cause == NULL) + goto bad; + } else if (PyExceptionInstance_Check(cause)) { + fixed_cause = cause; + Py_INCREF(fixed_cause); + } else { + PyErr_SetString(PyExc_TypeError, + "exception causes must derive from " + "BaseException"); + goto bad; + } + PyException_SetCause(value, fixed_cause); + } + PyErr_SetObject(type, value); + if (tb) { +#if CYTHON_COMPILING_IN_PYPY + PyObject *tmp_type, *tmp_value, *tmp_tb; + PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb); + Py_INCREF(tb); + PyErr_Restore(tmp_type, tmp_value, tb); + Py_XDECREF(tmp_tb); +#else + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject* tmp_tb = tstate->curexc_traceback; + if (tb != tmp_tb) { + Py_INCREF(tb); + tstate->curexc_traceback = tb; + Py_XDECREF(tmp_tb); + } +#endif + } +bad: + Py_XDECREF(owned_instance); + return; +} +#endif + +/* RaiseDoubleKeywords */ + static void __Pyx_RaiseDoubleKeywordsError( + const char* func_name, + PyObject* kw_name) +{ + PyErr_Format(PyExc_TypeError, + #if PY_MAJOR_VERSION >= 3 + "%s() got multiple values for keyword argument '%U'", func_name, kw_name); + #else + "%s() got multiple values for keyword argument '%s'", func_name, + PyString_AsString(kw_name)); + #endif +} + +/* ParseKeywords */ + static int __Pyx_ParseOptionalKeywords( + PyObject *kwds, + PyObject **argnames[], + PyObject *kwds2, + PyObject *values[], + Py_ssize_t num_pos_args, + const char* function_name) +{ + PyObject *key = 0, *value = 0; + Py_ssize_t pos = 0; + PyObject*** name; + PyObject*** first_kw_arg = argnames + num_pos_args; + while (PyDict_Next(kwds, &pos, &key, &value)) { + name = first_kw_arg; + while (*name && (**name != key)) name++; + if (*name) { + values[name-argnames] = value; + continue; + } + name = first_kw_arg; + #if PY_MAJOR_VERSION < 3 + if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) { + while (*name) { + if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key)) + && _PyString_Eq(**name, key)) { + values[name-argnames] = value; + break; + } + name++; + } + if (*name) continue; + else { + PyObject*** argname = argnames; + while (argname != first_kw_arg) { + if ((**argname == key) || ( + (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key)) + && _PyString_Eq(**argname, key))) { + goto arg_passed_twice; + } + argname++; + } + } + } else + #endif + if (likely(PyUnicode_Check(key))) { + while (*name) { + int cmp = (**name == key) ? 0 : + #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3 + (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 : + #endif + PyUnicode_Compare(**name, key); + if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad; + if (cmp == 0) { + values[name-argnames] = value; + break; + } + name++; + } + if (*name) continue; + else { + PyObject*** argname = argnames; + while (argname != first_kw_arg) { + int cmp = (**argname == key) ? 0 : + #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3 + (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 : + #endif + PyUnicode_Compare(**argname, key); + if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad; + if (cmp == 0) goto arg_passed_twice; + argname++; + } + } + } else + goto invalid_keyword_type; + if (kwds2) { + if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad; + } else { + goto invalid_keyword; + } + } + return 0; +arg_passed_twice: + __Pyx_RaiseDoubleKeywordsError(function_name, key); + goto bad; +invalid_keyword_type: + PyErr_Format(PyExc_TypeError, + "%.200s() keywords must be strings", function_name); + goto bad; +invalid_keyword: + PyErr_Format(PyExc_TypeError, + #if PY_MAJOR_VERSION < 3 + "%.200s() got an unexpected keyword argument '%.200s'", + function_name, PyString_AsString(key)); + #else + "%s() got an unexpected keyword argument '%U'", + function_name, key); + #endif +bad: + return -1; +} + +/* RaiseArgTupleInvalid */ + static void __Pyx_RaiseArgtupleInvalid( + const char* func_name, + int exact, + Py_ssize_t num_min, + Py_ssize_t num_max, + Py_ssize_t num_found) +{ + Py_ssize_t num_expected; + const char *more_or_less; + if (num_found < num_min) { + num_expected = num_min; + more_or_less = "at least"; + } else { + num_expected = num_max; + more_or_less = "at most"; + } + if (exact) { + more_or_less = "exactly"; + } + PyErr_Format(PyExc_TypeError, + "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)", + func_name, more_or_less, num_expected, + (num_expected == 1) ? "" : "s", num_found); +} + +/* PyObjectCallMethO */ + #if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) { + PyObject *self, *result; + PyCFunction cfunc; + cfunc = PyCFunction_GET_FUNCTION(func); + self = PyCFunction_GET_SELF(func); + if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) + return NULL; + result = cfunc(self, arg); + Py_LeaveRecursiveCall(); + if (unlikely(!result) && unlikely(!PyErr_Occurred())) { + PyErr_SetString( + PyExc_SystemError, + "NULL result without error in PyObject_Call"); + } + return result; +} +#endif + +/* PyObjectCallOneArg */ + #if CYTHON_COMPILING_IN_CPYTHON +static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) { + PyObject *result; + PyObject *args = PyTuple_New(1); + if (unlikely(!args)) return NULL; + Py_INCREF(arg); + PyTuple_SET_ITEM(args, 0, arg); + result = __Pyx_PyObject_Call(func, args, NULL); + Py_DECREF(args); + return result; +} +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) { +#if CYTHON_FAST_PYCALL + if (PyFunction_Check(func)) { + return __Pyx_PyFunction_FastCall(func, &arg, 1); + } +#endif + if (likely(PyCFunction_Check(func))) { + if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) { + return __Pyx_PyObject_CallMethO(func, arg); +#if CYTHON_FAST_PYCCALL + } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) { + return __Pyx_PyCFunction_FastCall(func, &arg, 1); +#endif + } + } + return __Pyx__PyObject_CallOneArg(func, arg); +} +#else +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) { + PyObject *result; + PyObject *args = PyTuple_Pack(1, arg); + if (unlikely(!args)) return NULL; + result = __Pyx_PyObject_Call(func, args, NULL); + Py_DECREF(args); + return result; +} +#endif + +/* WriteUnraisableException */ + static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno, + CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename, + int full_traceback, CYTHON_UNUSED int nogil) { + PyObject *old_exc, *old_val, *old_tb; + PyObject *ctx; + __Pyx_PyThreadState_declare +#ifdef WITH_THREAD + PyGILState_STATE state; + if (nogil) + state = PyGILState_Ensure(); +#ifdef _MSC_VER + else state = (PyGILState_STATE)-1; +#endif +#endif + __Pyx_PyThreadState_assign + __Pyx_ErrFetch(&old_exc, &old_val, &old_tb); + if (full_traceback) { + Py_XINCREF(old_exc); + Py_XINCREF(old_val); + Py_XINCREF(old_tb); + __Pyx_ErrRestore(old_exc, old_val, old_tb); + PyErr_PrintEx(1); + } + #if PY_MAJOR_VERSION < 3 + ctx = PyString_FromString(name); + #else + ctx = PyUnicode_FromString(name); + #endif + __Pyx_ErrRestore(old_exc, old_val, old_tb); + if (!ctx) { + PyErr_WriteUnraisable(Py_None); + } else { + PyErr_WriteUnraisable(ctx); + Py_DECREF(ctx); + } +#ifdef WITH_THREAD + if (nogil) + PyGILState_Release(state); +#endif +} + +/* PyObjectSetAttrStr */ + #if CYTHON_USE_TYPE_SLOTS +static CYTHON_INLINE int __Pyx_PyObject_SetAttrStr(PyObject* obj, PyObject* attr_name, PyObject* value) { + PyTypeObject* tp = Py_TYPE(obj); + if (likely(tp->tp_setattro)) + return tp->tp_setattro(obj, attr_name, value); +#if PY_MAJOR_VERSION < 3 + if (likely(tp->tp_setattr)) + return tp->tp_setattr(obj, PyString_AS_STRING(attr_name), value); +#endif + return PyObject_SetAttr(obj, attr_name, value); +} +#endif + +/* RaiseNoneIterError */ + static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) { + PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); +} + +/* ExtTypeTest */ + static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) { + if (unlikely(!type)) { + PyErr_SetString(PyExc_SystemError, "Missing type object"); + return 0; + } + if (likely(__Pyx_TypeCheck(obj, type))) + return 1; + PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s", + Py_TYPE(obj)->tp_name, type->tp_name); + return 0; +} + +/* SaveResetException */ + #if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + #if PY_VERSION_HEX >= 0x030700A3 + *type = tstate->exc_state.exc_type; + *value = tstate->exc_state.exc_value; + *tb = tstate->exc_state.exc_traceback; + #else + *type = tstate->exc_type; + *value = tstate->exc_value; + *tb = tstate->exc_traceback; + #endif + Py_XINCREF(*type); + Py_XINCREF(*value); + Py_XINCREF(*tb); +} +static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + #if PY_VERSION_HEX >= 0x030700A3 + tmp_type = tstate->exc_state.exc_type; + tmp_value = tstate->exc_state.exc_value; + tmp_tb = tstate->exc_state.exc_traceback; + tstate->exc_state.exc_type = type; + tstate->exc_state.exc_value = value; + tstate->exc_state.exc_traceback = tb; + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = type; + tstate->exc_value = value; + tstate->exc_traceback = tb; + #endif + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +} +#endif + +/* GetException */ + #if CYTHON_FAST_THREAD_STATE +static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { +#else +static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) { +#endif + PyObject *local_type, *local_value, *local_tb; +#if CYTHON_FAST_THREAD_STATE + PyObject *tmp_type, *tmp_value, *tmp_tb; + local_type = tstate->curexc_type; + local_value = tstate->curexc_value; + local_tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; +#else + PyErr_Fetch(&local_type, &local_value, &local_tb); +#endif + PyErr_NormalizeException(&local_type, &local_value, &local_tb); +#if CYTHON_FAST_THREAD_STATE + if (unlikely(tstate->curexc_type)) +#else + if (unlikely(PyErr_Occurred())) +#endif + goto bad; + #if PY_MAJOR_VERSION >= 3 + if (local_tb) { + if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0)) + goto bad; + } + #endif + Py_XINCREF(local_tb); + Py_XINCREF(local_type); + Py_XINCREF(local_value); + *type = local_type; + *value = local_value; + *tb = local_tb; +#if CYTHON_FAST_THREAD_STATE + #if PY_VERSION_HEX >= 0x030700A3 + tmp_type = tstate->exc_state.exc_type; + tmp_value = tstate->exc_state.exc_value; + tmp_tb = tstate->exc_state.exc_traceback; + tstate->exc_state.exc_type = local_type; + tstate->exc_state.exc_value = local_value; + tstate->exc_state.exc_traceback = local_tb; + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = local_type; + tstate->exc_value = local_value; + tstate->exc_traceback = local_tb; + #endif + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +#else + PyErr_SetExcInfo(local_type, local_value, local_tb); +#endif + return 0; +bad: + *type = 0; + *value = 0; + *tb = 0; + Py_XDECREF(local_type); + Py_XDECREF(local_value); + Py_XDECREF(local_tb); + return -1; +} + +/* PyObjectCallNoArg */ + #if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) { +#if CYTHON_FAST_PYCALL + if (PyFunction_Check(func)) { + return __Pyx_PyFunction_FastCall(func, NULL, 0); + } +#endif +#ifdef __Pyx_CyFunction_USED + if (likely(PyCFunction_Check(func) || __Pyx_TypeCheck(func, __pyx_CyFunctionType))) { +#else + if (likely(PyCFunction_Check(func))) { +#endif + if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) { + return __Pyx_PyObject_CallMethO(func, NULL); + } + } + return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL); +} +#endif + +/* GetItemInt */ + static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) { + PyObject *r; + if (!j) return NULL; + r = PyObject_GetItem(o, j); + Py_DECREF(j); + return r; +} +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i, + CYTHON_NCP_UNUSED int wraparound, + CYTHON_NCP_UNUSED int boundscheck) { +#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS + Py_ssize_t wrapped_i = i; + if (wraparound & unlikely(i < 0)) { + wrapped_i += PyList_GET_SIZE(o); + } + if ((!boundscheck) || likely((0 <= wrapped_i) & (wrapped_i < PyList_GET_SIZE(o)))) { + PyObject *r = PyList_GET_ITEM(o, wrapped_i); + Py_INCREF(r); + return r; + } + return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i)); +#else + return PySequence_GetItem(o, i); +#endif +} +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i, + CYTHON_NCP_UNUSED int wraparound, + CYTHON_NCP_UNUSED int boundscheck) { +#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS + Py_ssize_t wrapped_i = i; + if (wraparound & unlikely(i < 0)) { + wrapped_i += PyTuple_GET_SIZE(o); + } + if ((!boundscheck) || likely((0 <= wrapped_i) & (wrapped_i < PyTuple_GET_SIZE(o)))) { + PyObject *r = PyTuple_GET_ITEM(o, wrapped_i); + Py_INCREF(r); + return r; + } + return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i)); +#else + return PySequence_GetItem(o, i); +#endif +} +static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list, + CYTHON_NCP_UNUSED int wraparound, + CYTHON_NCP_UNUSED int boundscheck) { +#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS + if (is_list || PyList_CheckExact(o)) { + Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o); + if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) { + PyObject *r = PyList_GET_ITEM(o, n); + Py_INCREF(r); + return r; + } + } + else if (PyTuple_CheckExact(o)) { + Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o); + if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) { + PyObject *r = PyTuple_GET_ITEM(o, n); + Py_INCREF(r); + return r; + } + } else { + PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence; + if (likely(m && m->sq_item)) { + if (wraparound && unlikely(i < 0) && likely(m->sq_length)) { + Py_ssize_t l = m->sq_length(o); + if (likely(l >= 0)) { + i += l; + } else { + if (!PyErr_ExceptionMatches(PyExc_OverflowError)) + return NULL; + PyErr_Clear(); + } + } + return m->sq_item(o, i); + } + } +#else + if (is_list || PySequence_Check(o)) { + return PySequence_GetItem(o, i); + } +#endif + return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i)); +} + +/* pyobject_as_double */ + static double __Pyx__PyObject_AsDouble(PyObject* obj) { + PyObject* float_value; +#if !CYTHON_USE_TYPE_SLOTS + float_value = PyNumber_Float(obj); if (0) goto bad; +#else + PyNumberMethods *nb = Py_TYPE(obj)->tp_as_number; + if (likely(nb) && likely(nb->nb_float)) { + float_value = nb->nb_float(obj); + if (likely(float_value) && unlikely(!PyFloat_Check(float_value))) { + PyErr_Format(PyExc_TypeError, + "__float__ returned non-float (type %.200s)", + Py_TYPE(float_value)->tp_name); + Py_DECREF(float_value); + goto bad; + } + } else if (PyUnicode_CheckExact(obj) || PyBytes_CheckExact(obj)) { +#if PY_MAJOR_VERSION >= 3 + float_value = PyFloat_FromString(obj); +#else + float_value = PyFloat_FromString(obj, 0); +#endif + } else { + PyObject* args = PyTuple_New(1); + if (unlikely(!args)) goto bad; + PyTuple_SET_ITEM(args, 0, obj); + float_value = PyObject_Call((PyObject*)&PyFloat_Type, args, 0); + PyTuple_SET_ITEM(args, 0, 0); + Py_DECREF(args); + } +#endif + if (likely(float_value)) { + double value = PyFloat_AS_DOUBLE(float_value); + Py_DECREF(float_value); + return value; + } +bad: + return (double)-1; +} + +/* SwapException */ + #if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + #if PY_VERSION_HEX >= 0x030700A3 + tmp_type = tstate->exc_state.exc_type; + tmp_value = tstate->exc_state.exc_value; + tmp_tb = tstate->exc_state.exc_traceback; + tstate->exc_state.exc_type = *type; + tstate->exc_state.exc_value = *value; + tstate->exc_state.exc_traceback = *tb; + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = *type; + tstate->exc_value = *value; + tstate->exc_traceback = *tb; + #endif + *type = tmp_type; + *value = tmp_value; + *tb = tmp_tb; +} +#else +static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb); + PyErr_SetExcInfo(*type, *value, *tb); + *type = tmp_type; + *value = tmp_value; + *tb = tmp_tb; +} +#endif + +/* UnpackUnboundCMethod */ + static int __Pyx_TryUnpackUnboundCMethod(__Pyx_CachedCFunction* target) { + PyObject *method; + method = __Pyx_PyObject_GetAttrStr(target->type, *target->method_name); + if (unlikely(!method)) + return -1; + target->method = method; +#if CYTHON_COMPILING_IN_CPYTHON + #if PY_MAJOR_VERSION >= 3 + if (likely(__Pyx_TypeCheck(method, &PyMethodDescr_Type))) + #endif + { + PyMethodDescrObject *descr = (PyMethodDescrObject*) method; + target->func = descr->d_method->ml_meth; + target->flag = descr->d_method->ml_flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST); + } +#endif + return 0; +} + +/* CallUnboundCMethod1 */ + #if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_CallUnboundCMethod1(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg) { + if (likely(cfunc->func)) { + int flag = cfunc->flag; + if (flag == METH_O) { + return (*(cfunc->func))(self, arg); + } else if (PY_VERSION_HEX >= 0x030600B1 && flag == METH_FASTCALL) { + if (PY_VERSION_HEX >= 0x030700A0) { + return (*(__Pyx_PyCFunctionFast)cfunc->func)(self, &arg, 1); + } else { + return (*(__Pyx_PyCFunctionFastWithKeywords)cfunc->func)(self, &arg, 1, NULL); + } + } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { + return (*(__Pyx_PyCFunctionFastWithKeywords)cfunc->func)(self, &arg, 1, NULL); + } + } + return __Pyx__CallUnboundCMethod1(cfunc, self, arg); +} +#endif +static PyObject* __Pyx__CallUnboundCMethod1(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg){ + PyObject *args, *result = NULL; + if (unlikely(!cfunc->func && !cfunc->method) && unlikely(__Pyx_TryUnpackUnboundCMethod(cfunc) < 0)) return NULL; +#if CYTHON_COMPILING_IN_CPYTHON + if (cfunc->func && (cfunc->flag & METH_VARARGS)) { + args = PyTuple_New(1); + if (unlikely(!args)) goto bad; + Py_INCREF(arg); + PyTuple_SET_ITEM(args, 0, arg); + if (cfunc->flag & METH_KEYWORDS) + result = (*(PyCFunctionWithKeywords)cfunc->func)(self, args, NULL); + else + result = (*cfunc->func)(self, args); + } else { + args = PyTuple_New(2); + if (unlikely(!args)) goto bad; + Py_INCREF(self); + PyTuple_SET_ITEM(args, 0, self); + Py_INCREF(arg); + PyTuple_SET_ITEM(args, 1, arg); + result = __Pyx_PyObject_Call(cfunc->method, args, NULL); + } +#else + args = PyTuple_Pack(2, self, arg); + if (unlikely(!args)) goto bad; + result = __Pyx_PyObject_Call(cfunc->method, args, NULL); +#endif +bad: + Py_XDECREF(args); + return result; +} + +/* CallUnboundCMethod2 */ + #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030600B1 +static CYTHON_INLINE PyObject *__Pyx_CallUnboundCMethod2(__Pyx_CachedCFunction *cfunc, PyObject *self, PyObject *arg1, PyObject *arg2) { + if (likely(cfunc->func)) { + PyObject *args[2] = {arg1, arg2}; + if (cfunc->flag == METH_FASTCALL) { + #if PY_VERSION_HEX >= 0x030700A0 + return (*(__Pyx_PyCFunctionFast)cfunc->func)(self, args, 2); + #else + return (*(__Pyx_PyCFunctionFastWithKeywords)cfunc->func)(self, args, 2, NULL); + #endif + } + #if PY_VERSION_HEX >= 0x030700A0 + if (cfunc->flag == (METH_FASTCALL | METH_KEYWORDS)) + return (*(__Pyx_PyCFunctionFastWithKeywords)cfunc->func)(self, args, 2, NULL); + #endif + } + return __Pyx__CallUnboundCMethod2(cfunc, self, arg1, arg2); +} +#endif +static PyObject* __Pyx__CallUnboundCMethod2(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg1, PyObject* arg2){ + PyObject *args, *result = NULL; + if (unlikely(!cfunc->func && !cfunc->method) && unlikely(__Pyx_TryUnpackUnboundCMethod(cfunc) < 0)) return NULL; +#if CYTHON_COMPILING_IN_CPYTHON + if (cfunc->func && (cfunc->flag & METH_VARARGS)) { + args = PyTuple_New(2); + if (unlikely(!args)) goto bad; + Py_INCREF(arg1); + PyTuple_SET_ITEM(args, 0, arg1); + Py_INCREF(arg2); + PyTuple_SET_ITEM(args, 1, arg2); + if (cfunc->flag & METH_KEYWORDS) + result = (*(PyCFunctionWithKeywords)cfunc->func)(self, args, NULL); + else + result = (*cfunc->func)(self, args); + } else { + args = PyTuple_New(3); + if (unlikely(!args)) goto bad; + Py_INCREF(self); + PyTuple_SET_ITEM(args, 0, self); + Py_INCREF(arg1); + PyTuple_SET_ITEM(args, 1, arg1); + Py_INCREF(arg2); + PyTuple_SET_ITEM(args, 2, arg2); + result = __Pyx_PyObject_Call(cfunc->method, args, NULL); + } +#else + args = PyTuple_Pack(3, self, arg1, arg2); + if (unlikely(!args)) goto bad; + result = __Pyx_PyObject_Call(cfunc->method, args, NULL); +#endif +bad: + Py_XDECREF(args); + return result; +} + +/* dict_getitem_default */ + static PyObject* __Pyx_PyDict_GetItemDefault(PyObject* d, PyObject* key, PyObject* default_value) { + PyObject* value; +#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY + value = PyDict_GetItemWithError(d, key); + if (unlikely(!value)) { + if (unlikely(PyErr_Occurred())) + return NULL; + value = default_value; + } + Py_INCREF(value); + if ((1)); +#else + if (PyString_CheckExact(key) || PyUnicode_CheckExact(key) || PyInt_CheckExact(key)) { + value = PyDict_GetItem(d, key); + if (unlikely(!value)) { + value = default_value; + } + Py_INCREF(value); + } +#endif + else { + if (default_value == Py_None) + value = __Pyx_CallUnboundCMethod1(&__pyx_umethod_PyDict_Type_get, d, key); + else + value = __Pyx_CallUnboundCMethod2(&__pyx_umethod_PyDict_Type_get, d, key, default_value); + } + return value; +} + +/* py_dict_pop */ + static CYTHON_INLINE PyObject *__Pyx_PyDict_Pop(PyObject *d, PyObject *key, PyObject *default_value) { +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX > 0x030600B3 + if ((1)) { + return _PyDict_Pop(d, key, default_value); + } else +#endif + if (default_value) { + return __Pyx_CallUnboundCMethod2(&__pyx_umethod_PyDict_Type_pop, d, key, default_value); + } else { + return __Pyx_CallUnboundCMethod1(&__pyx_umethod_PyDict_Type_pop, d, key); + } +} + +/* ArgTypeTest */ + static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact) +{ + if (unlikely(!type)) { + PyErr_SetString(PyExc_SystemError, "Missing type object"); + return 0; + } + else if (exact) { + #if PY_MAJOR_VERSION == 2 + if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1; + #endif + } + else { + if (likely(__Pyx_TypeCheck(obj, type))) return 1; + } + PyErr_Format(PyExc_TypeError, + "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)", + name, type->tp_name, Py_TYPE(obj)->tp_name); + return 0; +} + +/* FastTypeChecks */ + #if CYTHON_COMPILING_IN_CPYTHON +static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) { + while (a) { + a = a->tp_base; + if (a == b) + return 1; + } + return b == &PyBaseObject_Type; +} +static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) { + PyObject *mro; + if (a == b) return 1; + mro = a->tp_mro; + if (likely(mro)) { + Py_ssize_t i, n; + n = PyTuple_GET_SIZE(mro); + for (i = 0; i < n; i++) { + if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b) + return 1; + } + return 0; + } + return __Pyx_InBases(a, b); +} +#if PY_MAJOR_VERSION == 2 +static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) { + PyObject *exception, *value, *tb; + int res; + __Pyx_PyThreadState_declare + __Pyx_PyThreadState_assign + __Pyx_ErrFetch(&exception, &value, &tb); + res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0; + if (unlikely(res == -1)) { + PyErr_WriteUnraisable(err); + res = 0; + } + if (!res) { + res = PyObject_IsSubclass(err, exc_type2); + if (unlikely(res == -1)) { + PyErr_WriteUnraisable(err); + res = 0; + } + } + __Pyx_ErrRestore(exception, value, tb); + return res; +} +#else +static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) { + int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0; + if (!res) { + res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2); + } + return res; +} +#endif +static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) { + Py_ssize_t i, n; + assert(PyExceptionClass_Check(exc_type)); + n = PyTuple_GET_SIZE(tuple); +#if PY_MAJOR_VERSION >= 3 + for (i=0; i<n; i++) { + if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1; + } +#endif + for (i=0; i<n; i++) { + PyObject *t = PyTuple_GET_ITEM(tuple, i); + #if PY_MAJOR_VERSION < 3 + if (likely(exc_type == t)) return 1; + #endif + if (likely(PyExceptionClass_Check(t))) { + if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1; + } else { + } + } + return 0; +} +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) { + if (likely(err == exc_type)) return 1; + if (likely(PyExceptionClass_Check(err))) { + if (likely(PyExceptionClass_Check(exc_type))) { + return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type); + } else if (likely(PyTuple_Check(exc_type))) { + return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type); + } else { + } + } + return PyErr_GivenExceptionMatches(err, exc_type); +} +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) { + assert(PyExceptionClass_Check(exc_type1)); + assert(PyExceptionClass_Check(exc_type2)); + if (likely(err == exc_type1 || err == exc_type2)) return 1; + if (likely(PyExceptionClass_Check(err))) { + return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2); + } + return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2)); +} +#endif + +/* PyObject_GenericGetAttrNoDict */ + #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) { + PyErr_Format(PyExc_AttributeError, +#if PY_MAJOR_VERSION >= 3 + "'%.50s' object has no attribute '%U'", + tp->tp_name, attr_name); +#else + "'%.50s' object has no attribute '%.400s'", + tp->tp_name, PyString_AS_STRING(attr_name)); +#endif + return NULL; +} +static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) { + PyObject *descr; + PyTypeObject *tp = Py_TYPE(obj); + if (unlikely(!PyString_Check(attr_name))) { + return PyObject_GenericGetAttr(obj, attr_name); + } + assert(!tp->tp_dictoffset); + descr = _PyType_Lookup(tp, attr_name); + if (unlikely(!descr)) { + return __Pyx_RaiseGenericGetAttributeError(tp, attr_name); + } + Py_INCREF(descr); + #if PY_MAJOR_VERSION < 3 + if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS))) + #endif + { + descrgetfunc f = Py_TYPE(descr)->tp_descr_get; + if (unlikely(f)) { + PyObject *res = f(descr, obj, (PyObject *)tp); + Py_DECREF(descr); + return res; + } + } + return descr; +} +#endif + +/* PyObject_GenericGetAttr */ + #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) { + if (unlikely(Py_TYPE(obj)->tp_dictoffset)) { + return PyObject_GenericGetAttr(obj, attr_name); + } + return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name); +} +#endif + +/* SetVTable */ + static int __Pyx_SetVtable(PyObject *dict, void *vtable) { +#if PY_VERSION_HEX >= 0x02070000 + PyObject *ob = PyCapsule_New(vtable, 0, 0); +#else + PyObject *ob = PyCObject_FromVoidPtr(vtable, 0); +#endif + if (!ob) + goto bad; + if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0) + goto bad; + Py_DECREF(ob); + return 0; +bad: + Py_XDECREF(ob); + return -1; +} + +/* ImportFrom */ + static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) { + PyObject* value = __Pyx_PyObject_GetAttrStr(module, name); + if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) { + PyErr_Format(PyExc_ImportError, + #if PY_MAJOR_VERSION < 3 + "cannot import name %.230s", PyString_AS_STRING(name)); + #else + "cannot import name %S", name); + #endif + } + return value; +} + +/* CalculateMetaclass */ + static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) { + Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases); + for (i=0; i < nbases; i++) { + PyTypeObject *tmptype; + PyObject *tmp = PyTuple_GET_ITEM(bases, i); + tmptype = Py_TYPE(tmp); +#if PY_MAJOR_VERSION < 3 + if (tmptype == &PyClass_Type) + continue; +#endif + if (!metaclass) { + metaclass = tmptype; + continue; + } + if (PyType_IsSubtype(metaclass, tmptype)) + continue; + if (PyType_IsSubtype(tmptype, metaclass)) { + metaclass = tmptype; + continue; + } + PyErr_SetString(PyExc_TypeError, + "metaclass conflict: " + "the metaclass of a derived class " + "must be a (non-strict) subclass " + "of the metaclasses of all its bases"); + return NULL; + } + if (!metaclass) { +#if PY_MAJOR_VERSION < 3 + metaclass = &PyClass_Type; +#else + metaclass = &PyType_Type; +#endif + } + Py_INCREF((PyObject*) metaclass); + return (PyObject*) metaclass; +} + +/* Py3ClassCreate */ + static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name, + PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) { + PyObject *ns; + if (metaclass) { + PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare); + if (prep) { + PyObject *pargs = PyTuple_Pack(2, name, bases); + if (unlikely(!pargs)) { + Py_DECREF(prep); + return NULL; + } + ns = PyObject_Call(prep, pargs, mkw); + Py_DECREF(prep); + Py_DECREF(pargs); + } else { + if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError))) + return NULL; + PyErr_Clear(); + ns = PyDict_New(); + } + } else { + ns = PyDict_New(); + } + if (unlikely(!ns)) + return NULL; + if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad; + if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad; + if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad; + return ns; +bad: + Py_DECREF(ns); + return NULL; +} +static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases, + PyObject *dict, PyObject *mkw, + int calculate_metaclass, int allow_py2_metaclass) { + PyObject *result, *margs; + PyObject *owned_metaclass = NULL; + if (allow_py2_metaclass) { + owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass); + if (owned_metaclass) { + metaclass = owned_metaclass; + } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) { + PyErr_Clear(); + } else { + return NULL; + } + } + if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) { + metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases); + Py_XDECREF(owned_metaclass); + if (unlikely(!metaclass)) + return NULL; + owned_metaclass = metaclass; + } + margs = PyTuple_Pack(3, name, bases, dict); + if (unlikely(!margs)) { + result = NULL; + } else { + result = PyObject_Call(metaclass, margs, mkw); + Py_DECREF(margs); + } + Py_XDECREF(owned_metaclass); + return result; +} + +/* FetchCommonType */ + static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) { + PyObject* fake_module; + PyTypeObject* cached_type = NULL; + fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI); + if (!fake_module) return NULL; + Py_INCREF(fake_module); + cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name); + if (cached_type) { + if (!PyType_Check((PyObject*)cached_type)) { + PyErr_Format(PyExc_TypeError, + "Shared Cython type %.200s is not a type object", + type->tp_name); + goto bad; + } + if (cached_type->tp_basicsize != type->tp_basicsize) { + PyErr_Format(PyExc_TypeError, + "Shared Cython type %.200s has the wrong size, try recompiling", + type->tp_name); + goto bad; + } + } else { + if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad; + PyErr_Clear(); + if (PyType_Ready(type) < 0) goto bad; + if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0) + goto bad; + Py_INCREF(type); + cached_type = type; + } +done: + Py_DECREF(fake_module); + return cached_type; +bad: + Py_XDECREF(cached_type); + cached_type = NULL; + goto done; +} + +/* CythonFunction */ + #include <structmember.h> +static PyObject * +__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure) +{ + if (unlikely(op->func_doc == NULL)) { + if (op->func.m_ml->ml_doc) { +#if PY_MAJOR_VERSION >= 3 + op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc); +#else + op->func_doc = PyString_FromString(op->func.m_ml->ml_doc); +#endif + if (unlikely(op->func_doc == NULL)) + return NULL; + } else { + Py_INCREF(Py_None); + return Py_None; + } + } + Py_INCREF(op->func_doc); + return op->func_doc; +} +static int +__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value) +{ + PyObject *tmp = op->func_doc; + if (value == NULL) { + value = Py_None; + } + Py_INCREF(value); + op->func_doc = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op) +{ + if (unlikely(op->func_name == NULL)) { +#if PY_MAJOR_VERSION >= 3 + op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name); +#else + op->func_name = PyString_InternFromString(op->func.m_ml->ml_name); +#endif + if (unlikely(op->func_name == NULL)) + return NULL; + } + Py_INCREF(op->func_name); + return op->func_name; +} +static int +__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value) +{ + PyObject *tmp; +#if PY_MAJOR_VERSION >= 3 + if (unlikely(value == NULL || !PyUnicode_Check(value))) { +#else + if (unlikely(value == NULL || !PyString_Check(value))) { +#endif + PyErr_SetString(PyExc_TypeError, + "__name__ must be set to a string object"); + return -1; + } + tmp = op->func_name; + Py_INCREF(value); + op->func_name = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op) +{ + Py_INCREF(op->func_qualname); + return op->func_qualname; +} +static int +__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value) +{ + PyObject *tmp; +#if PY_MAJOR_VERSION >= 3 + if (unlikely(value == NULL || !PyUnicode_Check(value))) { +#else + if (unlikely(value == NULL || !PyString_Check(value))) { +#endif + PyErr_SetString(PyExc_TypeError, + "__qualname__ must be set to a string object"); + return -1; + } + tmp = op->func_qualname; + Py_INCREF(value); + op->func_qualname = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure) +{ + PyObject *self; + self = m->func_closure; + if (self == NULL) + self = Py_None; + Py_INCREF(self); + return self; +} +static PyObject * +__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op) +{ + if (unlikely(op->func_dict == NULL)) { + op->func_dict = PyDict_New(); + if (unlikely(op->func_dict == NULL)) + return NULL; + } + Py_INCREF(op->func_dict); + return op->func_dict; +} +static int +__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value) +{ + PyObject *tmp; + if (unlikely(value == NULL)) { + PyErr_SetString(PyExc_TypeError, + "function's dictionary may not be deleted"); + return -1; + } + if (unlikely(!PyDict_Check(value))) { + PyErr_SetString(PyExc_TypeError, + "setting function's dictionary to a non-dict"); + return -1; + } + tmp = op->func_dict; + Py_INCREF(value); + op->func_dict = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op) +{ + Py_INCREF(op->func_globals); + return op->func_globals; +} +static PyObject * +__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op) +{ + Py_INCREF(Py_None); + return Py_None; +} +static PyObject * +__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op) +{ + PyObject* result = (op->func_code) ? op->func_code : Py_None; + Py_INCREF(result); + return result; +} +static int +__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) { + int result = 0; + PyObject *res = op->defaults_getter((PyObject *) op); + if (unlikely(!res)) + return -1; + #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS + op->defaults_tuple = PyTuple_GET_ITEM(res, 0); + Py_INCREF(op->defaults_tuple); + op->defaults_kwdict = PyTuple_GET_ITEM(res, 1); + Py_INCREF(op->defaults_kwdict); + #else + op->defaults_tuple = PySequence_ITEM(res, 0); + if (unlikely(!op->defaults_tuple)) result = -1; + else { + op->defaults_kwdict = PySequence_ITEM(res, 1); + if (unlikely(!op->defaults_kwdict)) result = -1; + } + #endif + Py_DECREF(res); + return result; +} +static int +__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) { + PyObject* tmp; + if (!value) { + value = Py_None; + } else if (value != Py_None && !PyTuple_Check(value)) { + PyErr_SetString(PyExc_TypeError, + "__defaults__ must be set to a tuple object"); + return -1; + } + Py_INCREF(value); + tmp = op->defaults_tuple; + op->defaults_tuple = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) { + PyObject* result = op->defaults_tuple; + if (unlikely(!result)) { + if (op->defaults_getter) { + if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL; + result = op->defaults_tuple; + } else { + result = Py_None; + } + } + Py_INCREF(result); + return result; +} +static int +__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) { + PyObject* tmp; + if (!value) { + value = Py_None; + } else if (value != Py_None && !PyDict_Check(value)) { + PyErr_SetString(PyExc_TypeError, + "__kwdefaults__ must be set to a dict object"); + return -1; + } + Py_INCREF(value); + tmp = op->defaults_kwdict; + op->defaults_kwdict = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) { + PyObject* result = op->defaults_kwdict; + if (unlikely(!result)) { + if (op->defaults_getter) { + if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL; + result = op->defaults_kwdict; + } else { + result = Py_None; + } + } + Py_INCREF(result); + return result; +} +static int +__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) { + PyObject* tmp; + if (!value || value == Py_None) { + value = NULL; + } else if (!PyDict_Check(value)) { + PyErr_SetString(PyExc_TypeError, + "__annotations__ must be set to a dict object"); + return -1; + } + Py_XINCREF(value); + tmp = op->func_annotations; + op->func_annotations = value; + Py_XDECREF(tmp); + return 0; +} +static PyObject * +__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) { + PyObject* result = op->func_annotations; + if (unlikely(!result)) { + result = PyDict_New(); + if (unlikely(!result)) return NULL; + op->func_annotations = result; + } + Py_INCREF(result); + return result; +} +static PyGetSetDef __pyx_CyFunction_getsets[] = { + {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0}, + {(char *) "__doc__", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0}, + {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0}, + {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0}, + {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0}, + {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0}, + {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0}, + {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0}, + {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0}, + {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0}, + {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0}, + {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0}, + {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0}, + {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0}, + {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0}, + {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0}, + {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0}, + {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0}, + {0, 0, 0, 0, 0} +}; +static PyMemberDef __pyx_CyFunction_members[] = { + {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), PY_WRITE_RESTRICTED, 0}, + {0, 0, 0, 0, 0} +}; +static PyObject * +__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args) +{ +#if PY_MAJOR_VERSION >= 3 + return PyUnicode_FromString(m->func.m_ml->ml_name); +#else + return PyString_FromString(m->func.m_ml->ml_name); +#endif +} +static PyMethodDef __pyx_CyFunction_methods[] = { + {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0}, + {0, 0, 0, 0} +}; +#if PY_VERSION_HEX < 0x030500A0 +#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist) +#else +#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist) +#endif +static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname, + PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) { + __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type); + if (op == NULL) + return NULL; + op->flags = flags; + __Pyx_CyFunction_weakreflist(op) = NULL; + op->func.m_ml = ml; + op->func.m_self = (PyObject *) op; + Py_XINCREF(closure); + op->func_closure = closure; + Py_XINCREF(module); + op->func.m_module = module; + op->func_dict = NULL; + op->func_name = NULL; + Py_INCREF(qualname); + op->func_qualname = qualname; + op->func_doc = NULL; + op->func_classobj = NULL; + op->func_globals = globals; + Py_INCREF(op->func_globals); + Py_XINCREF(code); + op->func_code = code; + op->defaults_pyobjects = 0; + op->defaults = NULL; + op->defaults_tuple = NULL; + op->defaults_kwdict = NULL; + op->defaults_getter = NULL; + op->func_annotations = NULL; + PyObject_GC_Track(op); + return (PyObject *) op; +} +static int +__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m) +{ + Py_CLEAR(m->func_closure); + Py_CLEAR(m->func.m_module); + Py_CLEAR(m->func_dict); + Py_CLEAR(m->func_name); + Py_CLEAR(m->func_qualname); + Py_CLEAR(m->func_doc); + Py_CLEAR(m->func_globals); + Py_CLEAR(m->func_code); + Py_CLEAR(m->func_classobj); + Py_CLEAR(m->defaults_tuple); + Py_CLEAR(m->defaults_kwdict); + Py_CLEAR(m->func_annotations); + if (m->defaults) { + PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m); + int i; + for (i = 0; i < m->defaults_pyobjects; i++) + Py_XDECREF(pydefaults[i]); + PyObject_Free(m->defaults); + m->defaults = NULL; + } + return 0; +} +static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m) +{ + if (__Pyx_CyFunction_weakreflist(m) != NULL) + PyObject_ClearWeakRefs((PyObject *) m); + __Pyx_CyFunction_clear(m); + PyObject_GC_Del(m); +} +static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m) +{ + PyObject_GC_UnTrack(m); + __Pyx__CyFunction_dealloc(m); +} +static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg) +{ + Py_VISIT(m->func_closure); + Py_VISIT(m->func.m_module); + Py_VISIT(m->func_dict); + Py_VISIT(m->func_name); + Py_VISIT(m->func_qualname); + Py_VISIT(m->func_doc); + Py_VISIT(m->func_globals); + Py_VISIT(m->func_code); + Py_VISIT(m->func_classobj); + Py_VISIT(m->defaults_tuple); + Py_VISIT(m->defaults_kwdict); + if (m->defaults) { + PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m); + int i; + for (i = 0; i < m->defaults_pyobjects; i++) + Py_VISIT(pydefaults[i]); + } + return 0; +} +static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type) +{ + __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func; + if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) { + Py_INCREF(func); + return func; + } + if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) { + if (type == NULL) + type = (PyObject *)(Py_TYPE(obj)); + return __Pyx_PyMethod_New(func, type, (PyObject *)(Py_TYPE(type))); + } + if (obj == Py_None) + obj = NULL; + return __Pyx_PyMethod_New(func, obj, type); +} +static PyObject* +__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op) +{ +#if PY_MAJOR_VERSION >= 3 + return PyUnicode_FromFormat("<cyfunction %U at %p>", + op->func_qualname, (void *)op); +#else + return PyString_FromFormat("<cyfunction %s at %p>", + PyString_AsString(op->func_qualname), (void *)op); +#endif +} +static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) { + PyCFunctionObject* f = (PyCFunctionObject*)func; + PyCFunction meth = f->m_ml->ml_meth; + Py_ssize_t size; + switch (f->m_ml->ml_flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) { + case METH_VARARGS: + if (likely(kw == NULL || PyDict_Size(kw) == 0)) + return (*meth)(self, arg); + break; + case METH_VARARGS | METH_KEYWORDS: + return (*(PyCFunctionWithKeywords)meth)(self, arg, kw); + case METH_NOARGS: + if (likely(kw == NULL || PyDict_Size(kw) == 0)) { + size = PyTuple_GET_SIZE(arg); + if (likely(size == 0)) + return (*meth)(self, NULL); + PyErr_Format(PyExc_TypeError, + "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)", + f->m_ml->ml_name, size); + return NULL; + } + break; + case METH_O: + if (likely(kw == NULL || PyDict_Size(kw) == 0)) { + size = PyTuple_GET_SIZE(arg); + if (likely(size == 1)) { + PyObject *result, *arg0; + #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS + arg0 = PyTuple_GET_ITEM(arg, 0); + #else + arg0 = PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL; + #endif + result = (*meth)(self, arg0); + #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS) + Py_DECREF(arg0); + #endif + return result; + } + PyErr_Format(PyExc_TypeError, + "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)", + f->m_ml->ml_name, size); + return NULL; + } + break; + default: + PyErr_SetString(PyExc_SystemError, "Bad call flags in " + "__Pyx_CyFunction_Call. METH_OLDARGS is no " + "longer supported!"); + return NULL; + } + PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments", + f->m_ml->ml_name); + return NULL; +} +static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) { + return __Pyx_CyFunction_CallMethod(func, ((PyCFunctionObject*)func)->m_self, arg, kw); +} +static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) { + PyObject *result; + __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func; + if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) { + Py_ssize_t argc; + PyObject *new_args; + PyObject *self; + argc = PyTuple_GET_SIZE(args); + new_args = PyTuple_GetSlice(args, 1, argc); + if (unlikely(!new_args)) + return NULL; + self = PyTuple_GetItem(args, 0); + if (unlikely(!self)) { + Py_DECREF(new_args); + return NULL; + } + result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw); + Py_DECREF(new_args); + } else { + result = __Pyx_CyFunction_Call(func, args, kw); + } + return result; +} +static PyTypeObject __pyx_CyFunctionType_type = { + PyVarObject_HEAD_INIT(0, 0) + "cython_function_or_method", + sizeof(__pyx_CyFunctionObject), + 0, + (destructor) __Pyx_CyFunction_dealloc, + 0, + 0, + 0, +#if PY_MAJOR_VERSION < 3 + 0, +#else + 0, +#endif + (reprfunc) __Pyx_CyFunction_repr, + 0, + 0, + 0, + 0, + __Pyx_CyFunction_CallAsMethod, + 0, + 0, + 0, + 0, + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, + 0, + (traverseproc) __Pyx_CyFunction_traverse, + (inquiry) __Pyx_CyFunction_clear, + 0, +#if PY_VERSION_HEX < 0x030500A0 + offsetof(__pyx_CyFunctionObject, func_weakreflist), +#else + offsetof(PyCFunctionObject, m_weakreflist), +#endif + 0, + 0, + __pyx_CyFunction_methods, + __pyx_CyFunction_members, + __pyx_CyFunction_getsets, + 0, + 0, + __Pyx_CyFunction_descr_get, + 0, + offsetof(__pyx_CyFunctionObject, func_dict), + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, +#if PY_VERSION_HEX >= 0x030400a1 + 0, +#endif +}; +static int __pyx_CyFunction_init(void) { + __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type); + if (unlikely(__pyx_CyFunctionType == NULL)) { + return -1; + } + return 0; +} +static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) { + __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func; + m->defaults = PyObject_Malloc(size); + if (unlikely(!m->defaults)) + return PyErr_NoMemory(); + memset(m->defaults, 0, size); + m->defaults_pyobjects = pyobjects; + return m->defaults; +} +static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) { + __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func; + m->defaults_tuple = tuple; + Py_INCREF(tuple); +} +static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) { + __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func; + m->defaults_kwdict = dict; + Py_INCREF(dict); +} +static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) { + __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func; + m->func_annotations = dict; + Py_INCREF(dict); +} + +/* CLineInTraceback */ + #ifndef CYTHON_CLINE_IN_TRACEBACK +static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) { + PyObject *use_cline; + PyObject *ptype, *pvalue, *ptraceback; +#if CYTHON_COMPILING_IN_CPYTHON + PyObject **cython_runtime_dict; +#endif + if (unlikely(!__pyx_cython_runtime)) { + return c_line; + } + __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback); +#if CYTHON_COMPILING_IN_CPYTHON + cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime); + if (likely(cython_runtime_dict)) { + use_cline = __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback); + } else +#endif + { + PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback); + if (use_cline_obj) { + use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True; + Py_DECREF(use_cline_obj); + } else { + PyErr_Clear(); + use_cline = NULL; + } + } + if (!use_cline) { + c_line = 0; + PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False); + } + else if (PyObject_Not(use_cline) != 0) { + c_line = 0; + } + __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback); + return c_line; +} +#endif + +/* CodeObjectCache */ + static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) { + int start = 0, mid = 0, end = count - 1; + if (end >= 0 && code_line > entries[end].code_line) { + return count; + } + while (start < end) { + mid = start + (end - start) / 2; + if (code_line < entries[mid].code_line) { + end = mid; + } else if (code_line > entries[mid].code_line) { + start = mid + 1; + } else { + return mid; + } + } + if (code_line <= entries[mid].code_line) { + return mid; + } else { + return mid + 1; + } +} +static PyCodeObject *__pyx_find_code_object(int code_line) { + PyCodeObject* code_object; + int pos; + if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) { + return NULL; + } + pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line); + if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) { + return NULL; + } + code_object = __pyx_code_cache.entries[pos].code_object; + Py_INCREF(code_object); + return code_object; +} +static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) { + int pos, i; + __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries; + if (unlikely(!code_line)) { + return; + } + if (unlikely(!entries)) { + entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry)); + if (likely(entries)) { + __pyx_code_cache.entries = entries; + __pyx_code_cache.max_count = 64; + __pyx_code_cache.count = 1; + entries[0].code_line = code_line; + entries[0].code_object = code_object; + Py_INCREF(code_object); + } + return; + } + pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line); + if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) { + PyCodeObject* tmp = entries[pos].code_object; + entries[pos].code_object = code_object; + Py_DECREF(tmp); + return; + } + if (__pyx_code_cache.count == __pyx_code_cache.max_count) { + int new_max = __pyx_code_cache.max_count + 64; + entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc( + __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry)); + if (unlikely(!entries)) { + return; + } + __pyx_code_cache.entries = entries; + __pyx_code_cache.max_count = new_max; + } + for (i=__pyx_code_cache.count; i>pos; i--) { + entries[i] = entries[i-1]; + } + entries[pos].code_line = code_line; + entries[pos].code_object = code_object; + __pyx_code_cache.count++; + Py_INCREF(code_object); +} + +/* AddTraceback */ + #include "compile.h" +#include "frameobject.h" +#include "traceback.h" +static PyCodeObject* __Pyx_CreateCodeObjectForTraceback( + const char *funcname, int c_line, + int py_line, const char *filename) { + PyCodeObject *py_code = 0; + PyObject *py_srcfile = 0; + PyObject *py_funcname = 0; + #if PY_MAJOR_VERSION < 3 + py_srcfile = PyString_FromString(filename); + #else + py_srcfile = PyUnicode_FromString(filename); + #endif + if (!py_srcfile) goto bad; + if (c_line) { + #if PY_MAJOR_VERSION < 3 + py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line); + #else + py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line); + #endif + } + else { + #if PY_MAJOR_VERSION < 3 + py_funcname = PyString_FromString(funcname); + #else + py_funcname = PyUnicode_FromString(funcname); + #endif + } + if (!py_funcname) goto bad; + py_code = __Pyx_PyCode_New( + 0, + 0, + 0, + 0, + 0, + __pyx_empty_bytes, /*PyObject *code,*/ + __pyx_empty_tuple, /*PyObject *consts,*/ + __pyx_empty_tuple, /*PyObject *names,*/ + __pyx_empty_tuple, /*PyObject *varnames,*/ + __pyx_empty_tuple, /*PyObject *freevars,*/ + __pyx_empty_tuple, /*PyObject *cellvars,*/ + py_srcfile, /*PyObject *filename,*/ + py_funcname, /*PyObject *name,*/ + py_line, + __pyx_empty_bytes /*PyObject *lnotab*/ + ); + Py_DECREF(py_srcfile); + Py_DECREF(py_funcname); + return py_code; +bad: + Py_XDECREF(py_srcfile); + Py_XDECREF(py_funcname); + return NULL; +} +static void __Pyx_AddTraceback(const char *funcname, int c_line, + int py_line, const char *filename) { + PyCodeObject *py_code = 0; + PyFrameObject *py_frame = 0; + PyThreadState *tstate = __Pyx_PyThreadState_Current; + if (c_line) { + c_line = __Pyx_CLineForTraceback(tstate, c_line); + } + py_code = __pyx_find_code_object(c_line ? -c_line : py_line); + if (!py_code) { + py_code = __Pyx_CreateCodeObjectForTraceback( + funcname, c_line, py_line, filename); + if (!py_code) goto bad; + __pyx_insert_code_object(c_line ? -c_line : py_line, py_code); + } + py_frame = PyFrame_New( + tstate, /*PyThreadState *tstate,*/ + py_code, /*PyCodeObject *code,*/ + __pyx_d, /*PyObject *globals,*/ + 0 /*PyObject *locals*/ + ); + if (!py_frame) goto bad; + __Pyx_PyFrame_SetLineNumber(py_frame, py_line); + PyTraceBack_Here(py_frame); +bad: + Py_XDECREF(py_code); + Py_XDECREF(py_frame); +} + +/* CIntToPy */ + static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) { + const long neg_one = (long) -1, const_zero = (long) 0; + const int is_unsigned = neg_one > const_zero; + if (is_unsigned) { + if (sizeof(long) < sizeof(long)) { + return PyInt_FromLong((long) value); + } else if (sizeof(long) <= sizeof(unsigned long)) { + return PyLong_FromUnsignedLong((unsigned long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) { + return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value); +#endif + } + } else { + if (sizeof(long) <= sizeof(long)) { + return PyInt_FromLong((long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) { + return PyLong_FromLongLong((PY_LONG_LONG) value); +#endif + } + } + { + int one = 1; int little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&value; + return _PyLong_FromByteArray(bytes, sizeof(long), + little, !is_unsigned); + } +} + +/* CIntToPy */ + static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) { + const int neg_one = (int) -1, const_zero = (int) 0; + const int is_unsigned = neg_one > const_zero; + if (is_unsigned) { + if (sizeof(int) < sizeof(long)) { + return PyInt_FromLong((long) value); + } else if (sizeof(int) <= sizeof(unsigned long)) { + return PyLong_FromUnsignedLong((unsigned long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) { + return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value); +#endif + } + } else { + if (sizeof(int) <= sizeof(long)) { + return PyInt_FromLong((long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) { + return PyLong_FromLongLong((PY_LONG_LONG) value); +#endif + } + } + { + int one = 1; int little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&value; + return _PyLong_FromByteArray(bytes, sizeof(int), + little, !is_unsigned); + } +} + +/* CIntFromPyVerify */ + #define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\ + __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0) +#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\ + __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1) +#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\ + {\ + func_type value = func_value;\ + if (sizeof(target_type) < sizeof(func_type)) {\ + if (unlikely(value != (func_type) (target_type) value)) {\ + func_type zero = 0;\ + if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\ + return (target_type) -1;\ + if (is_unsigned && unlikely(value < zero))\ + goto raise_neg_overflow;\ + else\ + goto raise_overflow;\ + }\ + }\ + return (target_type) value;\ + } + +/* CIntFromPy */ + static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) { + const int neg_one = (int) -1, const_zero = (int) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(int) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (int) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (int) 0; + case 1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0]) + case 2: + if (8 * sizeof(int) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) { + return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(int) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) { + return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(int) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) { + return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (int) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(int) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (int) 0; + case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(int, digit, +digits[0]) + case -2: + if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(int) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(int) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(int) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) { + return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + } +#endif + if (sizeof(int) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + int val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (int) -1; + } + } else { + int val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (int) -1; + val = __Pyx_PyInt_As_int(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to int"); + return (int) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to int"); + return (int) -1; +} + +/* CIntFromPy */ + static CYTHON_INLINE unsigned short __Pyx_PyInt_As_unsigned_short(PyObject *x) { + const unsigned short neg_one = (unsigned short) -1, const_zero = (unsigned short) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(unsigned short) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(unsigned short, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (unsigned short) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (unsigned short) 0; + case 1: __PYX_VERIFY_RETURN_INT(unsigned short, digit, digits[0]) + case 2: + if (8 * sizeof(unsigned short) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) >= 2 * PyLong_SHIFT) { + return (unsigned short) (((((unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(unsigned short) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) >= 3 * PyLong_SHIFT) { + return (unsigned short) (((((((unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(unsigned short) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) >= 4 * PyLong_SHIFT) { + return (unsigned short) (((((((((unsigned short)digits[3]) << PyLong_SHIFT) | (unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (unsigned short) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(unsigned short) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned short, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned short) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned short, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (unsigned short) 0; + case -1: __PYX_VERIFY_RETURN_INT(unsigned short, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(unsigned short, digit, +digits[0]) + case -2: + if (8 * sizeof(unsigned short) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 2 * PyLong_SHIFT) { + return (unsigned short) (((unsigned short)-1)*(((((unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(unsigned short) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 2 * PyLong_SHIFT) { + return (unsigned short) ((((((unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(unsigned short) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 3 * PyLong_SHIFT) { + return (unsigned short) (((unsigned short)-1)*(((((((unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(unsigned short) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 3 * PyLong_SHIFT) { + return (unsigned short) ((((((((unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(unsigned short) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 4 * PyLong_SHIFT) { + return (unsigned short) (((unsigned short)-1)*(((((((((unsigned short)digits[3]) << PyLong_SHIFT) | (unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(unsigned short) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned short, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned short) - 1 > 4 * PyLong_SHIFT) { + return (unsigned short) ((((((((((unsigned short)digits[3]) << PyLong_SHIFT) | (unsigned short)digits[2]) << PyLong_SHIFT) | (unsigned short)digits[1]) << PyLong_SHIFT) | (unsigned short)digits[0]))); + } + } + break; + } +#endif + if (sizeof(unsigned short) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned short, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned short) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned short, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + unsigned short val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (unsigned short) -1; + } + } else { + unsigned short val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (unsigned short) -1; + val = __Pyx_PyInt_As_unsigned_short(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to unsigned short"); + return (unsigned short) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to unsigned short"); + return (unsigned short) -1; +} + +/* CIntFromPy */ + static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) { + const long neg_one = (long) -1, const_zero = (long) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(long) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (long) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (long) 0; + case 1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0]) + case 2: + if (8 * sizeof(long) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) { + return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(long) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) { + return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(long) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) { + return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (long) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(long) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (long) 0; + case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(long, digit, +digits[0]) + case -2: + if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(long) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(long) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(long) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) { + return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + } +#endif + if (sizeof(long) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + long val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (long) -1; + } + } else { + long val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (long) -1; + val = __Pyx_PyInt_As_long(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to long"); + return (long) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to long"); + return (long) -1; +} + +/* CheckBinaryVersion */ + static int __Pyx_check_binary_version(void) { + char ctversion[4], rtversion[4]; + PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION); + PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion()); + if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) { + char message[200]; + PyOS_snprintf(message, sizeof(message), + "compiletime version %s of module '%.100s' " + "does not match runtime version %s", + ctversion, __Pyx_MODULE_NAME, rtversion); + return PyErr_WarnEx(NULL, message, 1); + } + return 0; +} + +/* ModuleImport */ + #ifndef __PYX_HAVE_RT_ImportModule +#define __PYX_HAVE_RT_ImportModule +static PyObject *__Pyx_ImportModule(const char *name) { + PyObject *py_name = 0; + PyObject *py_module = 0; + py_name = __Pyx_PyIdentifier_FromString(name); + if (!py_name) + goto bad; + py_module = PyImport_Import(py_name); + Py_DECREF(py_name); + return py_module; +bad: + Py_XDECREF(py_name); + return 0; +} +#endif + +/* TypeImport */ + #ifndef __PYX_HAVE_RT_ImportType +#define __PYX_HAVE_RT_ImportType +static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, + size_t size, int strict) +{ + PyObject *py_module = 0; + PyObject *result = 0; + PyObject *py_name = 0; + char warning[200]; + Py_ssize_t basicsize; +#ifdef Py_LIMITED_API + PyObject *py_basicsize; +#endif + py_module = __Pyx_ImportModule(module_name); + if (!py_module) + goto bad; + py_name = __Pyx_PyIdentifier_FromString(class_name); + if (!py_name) + goto bad; + result = PyObject_GetAttr(py_module, py_name); + Py_DECREF(py_name); + py_name = 0; + Py_DECREF(py_module); + py_module = 0; + if (!result) + goto bad; + if (!PyType_Check(result)) { + PyErr_Format(PyExc_TypeError, + "%.200s.%.200s is not a type object", + module_name, class_name); + goto bad; + } +#ifndef Py_LIMITED_API + basicsize = ((PyTypeObject *)result)->tp_basicsize; +#else + py_basicsize = PyObject_GetAttrString(result, "__basicsize__"); + if (!py_basicsize) + goto bad; + basicsize = PyLong_AsSsize_t(py_basicsize); + Py_DECREF(py_basicsize); + py_basicsize = 0; + if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred()) + goto bad; +#endif + if (!strict && (size_t)basicsize > size) { + PyOS_snprintf(warning, sizeof(warning), + "%s.%s size changed, may indicate binary incompatibility. Expected %zd, got %zd", + module_name, class_name, basicsize, size); + if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad; + } + else if ((size_t)basicsize != size) { + PyErr_Format(PyExc_ValueError, + "%.200s.%.200s has the wrong size, try recompiling. Expected %zd, got %zd", + module_name, class_name, basicsize, size); + goto bad; + } + return (PyTypeObject *)result; +bad: + Py_XDECREF(py_module); + Py_XDECREF(result); + return NULL; +} +#endif + +/* InitStrings */ + static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) { + while (t->p) { + #if PY_MAJOR_VERSION < 3 + if (t->is_unicode) { + *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL); + } else if (t->intern) { + *t->p = PyString_InternFromString(t->s); + } else { + *t->p = PyString_FromStringAndSize(t->s, t->n - 1); + } + #else + if (t->is_unicode | t->is_str) { + if (t->intern) { + *t->p = PyUnicode_InternFromString(t->s); + } else if (t->encoding) { + *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL); + } else { + *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1); + } + } else { + *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1); + } + #endif + if (!*t->p) + return -1; + if (PyObject_Hash(*t->p) == -1) + return -1; + ++t; + } + return 0; +} + +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) { + return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str)); +} +static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) { + Py_ssize_t ignore; + return __Pyx_PyObject_AsStringAndSize(o, &ignore); +} +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT +#if !CYTHON_PEP393_ENABLED +static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) { + char* defenc_c; + PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL); + if (!defenc) return NULL; + defenc_c = PyBytes_AS_STRING(defenc); +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + { + char* end = defenc_c + PyBytes_GET_SIZE(defenc); + char* c; + for (c = defenc_c; c < end; c++) { + if ((unsigned char) (*c) >= 128) { + PyUnicode_AsASCIIString(o); + return NULL; + } + } + } +#endif + *length = PyBytes_GET_SIZE(defenc); + return defenc_c; +} +#else +static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) { + if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL; +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + if (likely(PyUnicode_IS_ASCII(o))) { + *length = PyUnicode_GET_LENGTH(o); + return PyUnicode_AsUTF8(o); + } else { + PyUnicode_AsASCIIString(o); + return NULL; + } +#else + return PyUnicode_AsUTF8AndSize(o, length); +#endif +} +#endif +#endif +static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) { +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT + if ( +#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + __Pyx_sys_getdefaultencoding_not_ascii && +#endif + PyUnicode_Check(o)) { + return __Pyx_PyUnicode_AsStringAndSize(o, length); + } else +#endif +#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE)) + if (PyByteArray_Check(o)) { + *length = PyByteArray_GET_SIZE(o); + return PyByteArray_AS_STRING(o); + } else +#endif + { + char* result; + int r = PyBytes_AsStringAndSize(o, &result, length); + if (unlikely(r < 0)) { + return NULL; + } else { + return result; + } + } +} +static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) { + int is_true = x == Py_True; + if (is_true | (x == Py_False) | (x == Py_None)) return is_true; + else return PyObject_IsTrue(x); +} +static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) { +#if PY_MAJOR_VERSION >= 3 + if (PyLong_Check(result)) { + if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1, + "__int__ returned non-int (type %.200s). " + "The ability to return an instance of a strict subclass of int " + "is deprecated, and may be removed in a future version of Python.", + Py_TYPE(result)->tp_name)) { + Py_DECREF(result); + return NULL; + } + return result; + } +#endif + PyErr_Format(PyExc_TypeError, + "__%.4s__ returned non-%.4s (type %.200s)", + type_name, type_name, Py_TYPE(result)->tp_name); + Py_DECREF(result); + return NULL; +} +static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) { +#if CYTHON_USE_TYPE_SLOTS + PyNumberMethods *m; +#endif + const char *name = NULL; + PyObject *res = NULL; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x) || PyLong_Check(x))) +#else + if (likely(PyLong_Check(x))) +#endif + return __Pyx_NewRef(x); +#if CYTHON_USE_TYPE_SLOTS + m = Py_TYPE(x)->tp_as_number; + #if PY_MAJOR_VERSION < 3 + if (m && m->nb_int) { + name = "int"; + res = m->nb_int(x); + } + else if (m && m->nb_long) { + name = "long"; + res = m->nb_long(x); + } + #else + if (likely(m && m->nb_int)) { + name = "int"; + res = m->nb_int(x); + } + #endif +#else + if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) { + res = PyNumber_Int(x); + } +#endif + if (likely(res)) { +#if PY_MAJOR_VERSION < 3 + if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) { +#else + if (unlikely(!PyLong_CheckExact(res))) { +#endif + return __Pyx_PyNumber_IntOrLongWrongResultType(res, name); + } + } + else if (!PyErr_Occurred()) { + PyErr_SetString(PyExc_TypeError, + "an integer is required"); + } + return res; +} +static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) { + Py_ssize_t ival; + PyObject *x; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_CheckExact(b))) { + if (sizeof(Py_ssize_t) >= sizeof(long)) + return PyInt_AS_LONG(b); + else + return PyInt_AsSsize_t(x); + } +#endif + if (likely(PyLong_CheckExact(b))) { + #if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)b)->ob_digit; + const Py_ssize_t size = Py_SIZE(b); + if (likely(__Pyx_sst_abs(size) <= 1)) { + ival = likely(size) ? digits[0] : 0; + if (size == -1) ival = -ival; + return ival; + } else { + switch (size) { + case 2: + if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) { + return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -2: + if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case 3: + if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) { + return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -3: + if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case 4: + if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) { + return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -4: + if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + } + } + #endif + return PyLong_AsSsize_t(b); + } + x = PyNumber_Index(b); + if (!x) return -1; + ival = PyInt_AsSsize_t(x); + Py_DECREF(x); + return ival; +} +static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) { + return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False); +} +static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) { + return PyInt_FromSize_t(ival); +} + + +#endif /* Py_PYTHON_H */ diff --git a/python/gevent/resolver/cares.cp36-win32.pyd b/python/gevent/resolver/cares.cp36-win32.pyd Binary files differnew file mode 100644 index 0000000..af58514 --- /dev/null +++ b/python/gevent/resolver/cares.cp36-win32.pyd diff --git a/python/gevent/resolver/cares.pyx b/python/gevent/resolver/cares.pyx new file mode 100644 index 0000000..cc43c13 --- /dev/null +++ b/python/gevent/resolver/cares.pyx @@ -0,0 +1,464 @@ +# Copyright (c) 2011-2012 Denis Bilenko. See LICENSE for details. +# Automatic pickling of cdef classes was added in 0.26. Unfortunately it +# seems to be buggy (at least for the `result` class) and produces code that +# can't compile ("local variable 'result' referenced before assignment"). +# See https://github.com/cython/cython/issues/1786 +# cython: auto_pickle=False +cimport libcares as cares +import sys + +from cpython.ref cimport Py_INCREF +from cpython.ref cimport Py_DECREF +from cpython.mem cimport PyMem_Malloc +from cpython.mem cimport PyMem_Free + +from _socket import gaierror + + +__all__ = ['channel'] + +cdef object string_types +cdef object text_type + +if sys.version_info[0] >= 3: + string_types = str, + text_type = str +else: + string_types = __builtins__.basestring, + text_type = __builtins__.unicode + +TIMEOUT = 1 + +DEF EV_READ = 1 +DEF EV_WRITE = 2 + + +cdef extern from "dnshelper.c": + int AF_INET + int AF_INET6 + + struct hostent: + char* h_name + int h_addrtype + + struct sockaddr_t "sockaddr": + pass + + struct ares_channeldata: + pass + + object parse_h_name(hostent*) + object parse_h_aliases(hostent*) + object parse_h_addr_list(hostent*) + void* create_object_from_hostent(void*) + + # this imports _socket lazily + object PyUnicode_FromString(char*) + int PyTuple_Check(object) + int PyArg_ParseTuple(object, char*, ...) except 0 + struct sockaddr_in6: + pass + int gevent_make_sockaddr(char* hostp, int port, int flowinfo, int scope_id, sockaddr_in6* sa6) + + + void memset(void*, int, int) + + +ARES_SUCCESS = cares.ARES_SUCCESS +ARES_ENODATA = cares.ARES_ENODATA +ARES_EFORMERR = cares.ARES_EFORMERR +ARES_ESERVFAIL = cares.ARES_ESERVFAIL +ARES_ENOTFOUND = cares.ARES_ENOTFOUND +ARES_ENOTIMP = cares.ARES_ENOTIMP +ARES_EREFUSED = cares.ARES_EREFUSED +ARES_EBADQUERY = cares.ARES_EBADQUERY +ARES_EBADNAME = cares.ARES_EBADNAME +ARES_EBADFAMILY = cares.ARES_EBADFAMILY +ARES_EBADRESP = cares.ARES_EBADRESP +ARES_ECONNREFUSED = cares.ARES_ECONNREFUSED +ARES_ETIMEOUT = cares.ARES_ETIMEOUT +ARES_EOF = cares.ARES_EOF +ARES_EFILE = cares.ARES_EFILE +ARES_ENOMEM = cares.ARES_ENOMEM +ARES_EDESTRUCTION = cares.ARES_EDESTRUCTION +ARES_EBADSTR = cares.ARES_EBADSTR +ARES_EBADFLAGS = cares.ARES_EBADFLAGS +ARES_ENONAME = cares.ARES_ENONAME +ARES_EBADHINTS = cares.ARES_EBADHINTS +ARES_ENOTINITIALIZED = cares.ARES_ENOTINITIALIZED +ARES_ELOADIPHLPAPI = cares.ARES_ELOADIPHLPAPI +ARES_EADDRGETNETWORKPARAMS = cares.ARES_EADDRGETNETWORKPARAMS +ARES_ECANCELLED = cares.ARES_ECANCELLED + +ARES_FLAG_USEVC = cares.ARES_FLAG_USEVC +ARES_FLAG_PRIMARY = cares.ARES_FLAG_PRIMARY +ARES_FLAG_IGNTC = cares.ARES_FLAG_IGNTC +ARES_FLAG_NORECURSE = cares.ARES_FLAG_NORECURSE +ARES_FLAG_STAYOPEN = cares.ARES_FLAG_STAYOPEN +ARES_FLAG_NOSEARCH = cares.ARES_FLAG_NOSEARCH +ARES_FLAG_NOALIASES = cares.ARES_FLAG_NOALIASES +ARES_FLAG_NOCHECKRESP = cares.ARES_FLAG_NOCHECKRESP + + +_ares_errors = dict([ + (cares.ARES_SUCCESS, 'ARES_SUCCESS'), + (cares.ARES_ENODATA, 'ARES_ENODATA'), + (cares.ARES_EFORMERR, 'ARES_EFORMERR'), + (cares.ARES_ESERVFAIL, 'ARES_ESERVFAIL'), + (cares.ARES_ENOTFOUND, 'ARES_ENOTFOUND'), + (cares.ARES_ENOTIMP, 'ARES_ENOTIMP'), + (cares.ARES_EREFUSED, 'ARES_EREFUSED'), + (cares.ARES_EBADQUERY, 'ARES_EBADQUERY'), + (cares.ARES_EBADNAME, 'ARES_EBADNAME'), + (cares.ARES_EBADFAMILY, 'ARES_EBADFAMILY'), + (cares.ARES_EBADRESP, 'ARES_EBADRESP'), + (cares.ARES_ECONNREFUSED, 'ARES_ECONNREFUSED'), + (cares.ARES_ETIMEOUT, 'ARES_ETIMEOUT'), + (cares.ARES_EOF, 'ARES_EOF'), + (cares.ARES_EFILE, 'ARES_EFILE'), + (cares.ARES_ENOMEM, 'ARES_ENOMEM'), + (cares.ARES_EDESTRUCTION, 'ARES_EDESTRUCTION'), + (cares.ARES_EBADSTR, 'ARES_EBADSTR'), + (cares.ARES_EBADFLAGS, 'ARES_EBADFLAGS'), + (cares.ARES_ENONAME, 'ARES_ENONAME'), + (cares.ARES_EBADHINTS, 'ARES_EBADHINTS'), + (cares.ARES_ENOTINITIALIZED, 'ARES_ENOTINITIALIZED'), + (cares.ARES_ELOADIPHLPAPI, 'ARES_ELOADIPHLPAPI'), + (cares.ARES_EADDRGETNETWORKPARAMS, 'ARES_EADDRGETNETWORKPARAMS'), + (cares.ARES_ECANCELLED, 'ARES_ECANCELLED')]) + + +# maps c-ares flag to _socket module flag +_cares_flag_map = None + + +cdef _prepare_cares_flag_map(): + global _cares_flag_map + import _socket + _cares_flag_map = [ + (getattr(_socket, 'NI_NUMERICHOST', 1), cares.ARES_NI_NUMERICHOST), + (getattr(_socket, 'NI_NUMERICSERV', 2), cares.ARES_NI_NUMERICSERV), + (getattr(_socket, 'NI_NOFQDN', 4), cares.ARES_NI_NOFQDN), + (getattr(_socket, 'NI_NAMEREQD', 8), cares.ARES_NI_NAMEREQD), + (getattr(_socket, 'NI_DGRAM', 16), cares.ARES_NI_DGRAM)] + + +cpdef _convert_cares_flags(int flags, int default=cares.ARES_NI_LOOKUPHOST|cares.ARES_NI_LOOKUPSERVICE): + if _cares_flag_map is None: + _prepare_cares_flag_map() + for socket_flag, cares_flag in _cares_flag_map: + if socket_flag & flags: + default |= cares_flag + flags &= ~socket_flag + if not flags: + return default + raise gaierror(-1, "Bad value for ai_flags: 0x%x" % flags) + + +cpdef strerror(code): + return '%s: %s' % (_ares_errors.get(code) or code, cares.ares_strerror(code)) + + +class InvalidIP(ValueError): + pass + + +cdef void gevent_sock_state_callback(void *data, int s, int read, int write): + if not data: + return + cdef channel ch = <channel>data + ch._sock_state_callback(s, read, write) + + +cdef class result: + cdef public object value + cdef public object exception + + def __init__(self, object value=None, object exception=None): + self.value = value + self.exception = exception + + def __repr__(self): + if self.exception is None: + return '%s(%r)' % (self.__class__.__name__, self.value) + elif self.value is None: + return '%s(exception=%r)' % (self.__class__.__name__, self.exception) + else: + return '%s(value=%r, exception=%r)' % (self.__class__.__name__, self.value, self.exception) + # add repr_recursive precaution + + def successful(self): + return self.exception is None + + def get(self): + if self.exception is not None: + raise self.exception + return self.value + + +class ares_host_result(tuple): + + def __new__(cls, family, iterable): + cdef object self = tuple.__new__(cls, iterable) + self.family = family + return self + + def __getnewargs__(self): + return (self.family, tuple(self)) + + +cdef void gevent_ares_host_callback(void *arg, int status, int timeouts, hostent* host): + cdef channel channel + cdef object callback + channel, callback = <tuple>arg + Py_DECREF(<tuple>arg) + cdef object host_result + try: + if status or not host: + callback(result(None, gaierror(status, strerror(status)))) + else: + try: + host_result = ares_host_result(host.h_addrtype, (parse_h_name(host), parse_h_aliases(host), parse_h_addr_list(host))) + except: + callback(result(None, sys.exc_info()[1])) + else: + callback(result(host_result)) + except: + channel.loop.handle_error(callback, *sys.exc_info()) + + +cdef void gevent_ares_nameinfo_callback(void *arg, int status, int timeouts, char *c_node, char *c_service): + cdef channel channel + cdef object callback + channel, callback = <tuple>arg + Py_DECREF(<tuple>arg) + cdef object node + cdef object service + try: + if status: + callback(result(None, gaierror(status, strerror(status)))) + else: + if c_node: + node = PyUnicode_FromString(c_node) + else: + node = None + if c_service: + service = PyUnicode_FromString(c_service) + else: + service = None + callback(result((node, service))) + except: + channel.loop.handle_error(callback, *sys.exc_info()) + + +cdef class channel: + + cdef public object loop + cdef ares_channeldata* channel + cdef public dict _watchers + cdef public object _timer + + def __init__(self, object loop, flags=None, timeout=None, tries=None, ndots=None, + udp_port=None, tcp_port=None, servers=None): + cdef ares_channeldata* channel = NULL + cdef cares.ares_options options + memset(&options, 0, sizeof(cares.ares_options)) + cdef int optmask = cares.ARES_OPT_SOCK_STATE_CB + options.sock_state_cb = <void*>gevent_sock_state_callback + options.sock_state_cb_data = <void*>self + if flags is not None: + options.flags = int(flags) + optmask |= cares.ARES_OPT_FLAGS + if timeout is not None: + options.timeout = int(float(timeout) * 1000) + optmask |= cares.ARES_OPT_TIMEOUTMS + if tries is not None: + options.tries = int(tries) + optmask |= cares.ARES_OPT_TRIES + if ndots is not None: + options.ndots = int(ndots) + optmask |= cares.ARES_OPT_NDOTS + if udp_port is not None: + options.udp_port = int(udp_port) + optmask |= cares.ARES_OPT_UDP_PORT + if tcp_port is not None: + options.tcp_port = int(tcp_port) + optmask |= cares.ARES_OPT_TCP_PORT + cdef int result = cares.ares_library_init(cares.ARES_LIB_INIT_ALL) # ARES_LIB_INIT_WIN32 -DUSE_WINSOCK? + if result: + raise gaierror(result, strerror(result)) + result = cares.ares_init_options(&channel, &options, optmask) + if result: + raise gaierror(result, strerror(result)) + self._timer = loop.timer(TIMEOUT, TIMEOUT) + self._watchers = {} + self.channel = channel + try: + if servers is not None: + self.set_servers(servers) + self.loop = loop + except: + self.destroy() + raise + + def __repr__(self): + args = (self.__class__.__name__, id(self), self._timer, len(self._watchers)) + return '<%s at 0x%x _timer=%r _watchers[%s]>' % args + + def destroy(self): + if self.channel: + # XXX ares_library_cleanup? + cares.ares_destroy(self.channel) + self.channel = NULL + self._watchers.clear() + self._timer.stop() + self.loop = None + + def __dealloc__(self): + if self.channel: + # XXX ares_library_cleanup? + cares.ares_destroy(self.channel) + self.channel = NULL + + cpdef set_servers(self, servers=None): + if not self.channel: + raise gaierror(cares.ARES_EDESTRUCTION, 'this ares channel has been destroyed') + if not servers: + servers = [] + if isinstance(servers, string_types): + servers = servers.split(',') + cdef int length = len(servers) + cdef int result, index + cdef char* string + cdef cares.ares_addr_node* c_servers + if length <= 0: + result = cares.ares_set_servers(self.channel, NULL) + else: + c_servers = <cares.ares_addr_node*>PyMem_Malloc(sizeof(cares.ares_addr_node) * length) + if not c_servers: + raise MemoryError + try: + index = 0 + for server in servers: + if isinstance(server, unicode): + server = server.encode('ascii') + string = <char*?>server + if cares.ares_inet_pton(AF_INET, string, &c_servers[index].addr) > 0: + c_servers[index].family = AF_INET + elif cares.ares_inet_pton(AF_INET6, string, &c_servers[index].addr) > 0: + c_servers[index].family = AF_INET6 + else: + raise InvalidIP(repr(string)) + c_servers[index].next = &c_servers[index] + 1 + index += 1 + if index >= length: + break + c_servers[length - 1].next = NULL + index = cares.ares_set_servers(self.channel, c_servers) + if index: + raise ValueError(strerror(index)) + finally: + PyMem_Free(c_servers) + + # this crashes c-ares + #def cancel(self): + # cares.ares_cancel(self.channel) + + cdef _sock_state_callback(self, int socket, int read, int write): + if not self.channel: + return + cdef object watcher = self._watchers.get(socket) + cdef int events = 0 + if read: + events |= EV_READ + if write: + events |= EV_WRITE + if watcher is None: + if not events: + return + watcher = self.loop.io(socket, events) + self._watchers[socket] = watcher + elif events: + if watcher.events == events: + return + watcher.stop() + watcher.events = events + else: + watcher.stop() + watcher.close() + self._watchers.pop(socket, None) + if not self._watchers: + self._timer.stop() + return + watcher.start(self._process_fd, watcher, pass_events=True) + self._timer.again(self._on_timer) + + def _on_timer(self): + cares.ares_process_fd(self.channel, cares.ARES_SOCKET_BAD, cares.ARES_SOCKET_BAD) + + def _process_fd(self, int events, object watcher): + if not self.channel: + return + cdef int read_fd = watcher.fd + cdef int write_fd = read_fd + if not (events & EV_READ): + read_fd = cares.ARES_SOCKET_BAD + if not (events & EV_WRITE): + write_fd = cares.ARES_SOCKET_BAD + cares.ares_process_fd(self.channel, read_fd, write_fd) + + def gethostbyname(self, object callback, char* name, int family=AF_INET): + if not self.channel: + raise gaierror(cares.ARES_EDESTRUCTION, 'this ares channel has been destroyed') + # note that for file lookups still AF_INET can be returned for AF_INET6 request + cdef object arg = (self, callback) + Py_INCREF(arg) + cares.ares_gethostbyname(self.channel, name, family, <void*>gevent_ares_host_callback, <void*>arg) + + def gethostbyaddr(self, object callback, char* addr): + if not self.channel: + raise gaierror(cares.ARES_EDESTRUCTION, 'this ares channel has been destroyed') + # will guess the family + cdef char addr_packed[16] + cdef int family + cdef int length + if cares.ares_inet_pton(AF_INET, addr, addr_packed) > 0: + family = AF_INET + length = 4 + elif cares.ares_inet_pton(AF_INET6, addr, addr_packed) > 0: + family = AF_INET6 + length = 16 + else: + raise InvalidIP(repr(addr)) + cdef object arg = (self, callback) + Py_INCREF(arg) + cares.ares_gethostbyaddr(self.channel, addr_packed, length, family, <void*>gevent_ares_host_callback, <void*>arg) + + cpdef _getnameinfo(self, object callback, tuple sockaddr, int flags): + if not self.channel: + raise gaierror(cares.ARES_EDESTRUCTION, 'this ares channel has been destroyed') + cdef char* hostp = NULL + cdef int port = 0 + cdef int flowinfo = 0 + cdef int scope_id = 0 + cdef sockaddr_in6 sa6 + if not PyTuple_Check(sockaddr): + raise TypeError('expected a tuple, got %r' % (sockaddr, )) + PyArg_ParseTuple(sockaddr, "si|ii", &hostp, &port, &flowinfo, &scope_id) + if port < 0 or port > 65535: + raise gaierror(-8, 'Invalid value for port: %r' % port) + cdef int length = gevent_make_sockaddr(hostp, port, flowinfo, scope_id, &sa6) + if length <= 0: + raise InvalidIP(repr(hostp)) + cdef object arg = (self, callback) + Py_INCREF(arg) + cdef sockaddr_t* x = <sockaddr_t*>&sa6 + cares.ares_getnameinfo(self.channel, x, length, flags, <void*>gevent_ares_nameinfo_callback, <void*>arg) + + def getnameinfo(self, object callback, tuple sockaddr, int flags): + try: + flags = _convert_cares_flags(flags) + except gaierror: + # The stdlib just ignores bad flags + flags = 0 + return self._getnameinfo(callback, sockaddr, flags) diff --git a/python/gevent/resolver/cares_ntop.h b/python/gevent/resolver/cares_ntop.h new file mode 100644 index 0000000..9ffc9dd --- /dev/null +++ b/python/gevent/resolver/cares_ntop.h @@ -0,0 +1,7 @@ +#ifdef CARES_EMBED +#include "ares_setup.h" +#include "ares.h" +#else +#include <arpa/inet.h> +#define ares_inet_ntop(w,x,y,z) inet_ntop(w,x,y,z) +#endif diff --git a/python/gevent/resolver/cares_pton.h b/python/gevent/resolver/cares_pton.h new file mode 100644 index 0000000..85af403 --- /dev/null +++ b/python/gevent/resolver/cares_pton.h @@ -0,0 +1,8 @@ +#ifdef CARES_EMBED +#include "ares_setup.h" +#include "ares_inet_net_pton.h" +#else +#include <arpa/inet.h> +#define ares_inet_pton(x,y,z) inet_pton(x,y,z) +#define ares_inet_net_pton(w,x,y,z) inet_net_pton(w,x,y,z) +#endif diff --git a/python/gevent/resolver/dnshelper.c b/python/gevent/resolver/dnshelper.c new file mode 100644 index 0000000..3befb69 --- /dev/null +++ b/python/gevent/resolver/dnshelper.c @@ -0,0 +1,159 @@ +/* Copyright (c) 2011 Denis Bilenko. See LICENSE for details. */ +#include "Python.h" +#ifdef CARES_EMBED +#include "ares_setup.h" +#endif + +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif + +#include "ares.h" + +#include "cares_ntop.h" +#include "cares_pton.h" + +#if PY_VERSION_HEX < 0x02060000 + #define PyUnicode_FromString PyString_FromString +#elif PY_MAJOR_VERSION < 3 + #define PyUnicode_FromString PyBytes_FromString +#endif + + +static PyObject* _socket_error = 0; + +static PyObject* +get_socket_object(PyObject** pobject, const char* name) +{ + if (!*pobject) { + PyObject* _socket; + _socket = PyImport_ImportModule("_socket"); + if (_socket) { + *pobject = PyObject_GetAttrString(_socket, name); + if (!*pobject) { + PyErr_WriteUnraisable(Py_None); + } + Py_DECREF(_socket); + } + else { + PyErr_WriteUnraisable(Py_None); + } + if (!*pobject) { + *pobject = PyExc_IOError; + } + } + return *pobject; +} + + +static int +gevent_append_addr(PyObject* list, int family, void* src, char* tmpbuf, size_t tmpsize) { + int status = -1; + PyObject* tmp; + if (ares_inet_ntop(family, src, tmpbuf, tmpsize)) { + tmp = PyUnicode_FromString(tmpbuf); + if (tmp) { + status = PyList_Append(list, tmp); + Py_DECREF(tmp); + } + } + return status; +} + + +static PyObject* +parse_h_name(struct hostent *h) +{ + return PyUnicode_FromString(h->h_name); +} + + +static PyObject* +parse_h_aliases(struct hostent *h) +{ + char **pch; + PyObject *result = NULL; + PyObject *tmp; + + result = PyList_New(0); + + if (result && h->h_aliases) { + for (pch = h->h_aliases; *pch != NULL; pch++) { + if (*pch != h->h_name && strcmp(*pch, h->h_name)) { + int status; + tmp = PyUnicode_FromString(*pch); + if (tmp == NULL) { + break; + } + + status = PyList_Append(result, tmp); + Py_DECREF(tmp); + + if (status) { + break; + } + } + } + } + + return result; +} + + +static PyObject * +parse_h_addr_list(struct hostent *h) +{ + char **pch; + PyObject *result = NULL; + + result = PyList_New(0); + + if (result) { + switch (h->h_addrtype) { + case AF_INET: + { + char tmpbuf[sizeof "255.255.255.255"]; + for (pch = h->h_addr_list; *pch != NULL; pch++) { + if (gevent_append_addr(result, AF_INET, *pch, tmpbuf, sizeof(tmpbuf))) { + break; + } + } + break; + } + case AF_INET6: + { + char tmpbuf[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")]; + for (pch = h->h_addr_list; *pch != NULL; pch++) { + if (gevent_append_addr(result, AF_INET6, *pch, tmpbuf, sizeof(tmpbuf))) { + break; + } + } + break; + } + default: + PyErr_SetString(get_socket_object(&_socket_error, "error"), "unsupported address family"); + Py_DECREF(result); + result = NULL; + } + } + + return result; +} + + +static int +gevent_make_sockaddr(char* hostp, int port, int flowinfo, int scope_id, struct sockaddr_in6* sa6) { + if ( ares_inet_pton(AF_INET, hostp, &((struct sockaddr_in*)sa6)->sin_addr.s_addr) > 0 ) { + ((struct sockaddr_in*)sa6)->sin_family = AF_INET; + ((struct sockaddr_in*)sa6)->sin_port = htons(port); + return sizeof(struct sockaddr_in); + } + else if ( ares_inet_pton(AF_INET6, hostp, &sa6->sin6_addr.s6_addr) > 0 ) { + sa6->sin6_family = AF_INET6; + sa6->sin6_port = htons(port); + sa6->sin6_flowinfo = flowinfo; + sa6->sin6_scope_id = scope_id; + return sizeof(struct sockaddr_in6); + } + return -1; +} diff --git a/python/gevent/resolver/dnspython.py b/python/gevent/resolver/dnspython.py new file mode 100644 index 0000000..c2ae73b --- /dev/null +++ b/python/gevent/resolver/dnspython.py @@ -0,0 +1,662 @@ +# Copyright (c) 2018 gevent contributors. See LICENSE for details. + +# Portions of this code taken from the gogreen project: +# http://github.com/slideinc/gogreen +# +# Copyright (c) 2005-2010 Slide, Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials provided +# with the distribution. +# * Neither the name of the author nor the names of other +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# Portions of this code taken from the eventlet project: +# https://github.com/eventlet/eventlet/blob/master/eventlet/support/greendns.py + +# Unless otherwise noted, the files in Eventlet are under the following MIT license: + +# Copyright (c) 2005-2006, Bob Ippolito +# Copyright (c) 2007-2010, Linden Research, Inc. +# Copyright (c) 2008-2010, Eventlet Contributors (see AUTHORS) + +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: + +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. + +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. +from __future__ import absolute_import, print_function, division + +import time +import re +import os +import sys + +import _socket +from _socket import AI_NUMERICHOST +from _socket import error +from _socket import NI_NUMERICSERV +from _socket import AF_INET +from _socket import AF_INET6 +from _socket import AF_UNSPEC + +import socket + +from . import AbstractResolver +from . import hostname_types + +from gevent._compat import string_types +from gevent._compat import iteritems +from gevent._patcher import import_patched +from gevent._config import config + +__all__ = [ + 'Resolver', +] + +# Import the DNS packages to use the gevent modules, +# even if the system is not monkey-patched. +def _patch_dns(): + top = import_patched('dns') + for pkg in ('dns', + 'dns.rdtypes', + 'dns.rdtypes.IN', + 'dns.rdtypes.ANY'): + mod = import_patched(pkg) + for name in mod.__all__: + setattr(mod, name, import_patched(pkg + '.' + name)) + return top + +dns = _patch_dns() + +def _dns_import_patched(name): + assert name.startswith('dns') + import_patched(name) + return dns + +# This module tries to dynamically import classes +# using __import__, and it's important that they match +# the ones we just created, otherwise exceptions won't be caught +# as expected. It uses a one-arg __import__ statement and then +# tries to walk down the sub-modules using getattr, so we can't +# directly use import_patched as-is. +dns.rdata.__import__ = _dns_import_patched + +resolver = dns.resolver +dTimeout = dns.resolver.Timeout + +_exc_clear = getattr(sys, 'exc_clear', lambda: None) + +# This is a copy of resolver._getaddrinfo with the crucial change that it +# doesn't have a bare except:, because that breaks Timeout and KeyboardInterrupt +# A secondary change is that calls to sys.exc_clear() have been inserted to avoid +# failing tests in test__refcount.py (timeouts). +# See https://github.com/rthalley/dnspython/pull/300 +def _getaddrinfo(host=None, service=None, family=AF_UNSPEC, socktype=0, + proto=0, flags=0): + # pylint:disable=too-many-locals,broad-except,too-many-statements + # pylint:disable=too-many-branches + # pylint:disable=redefined-argument-from-local + # pylint:disable=consider-using-in + if flags & (socket.AI_ADDRCONFIG | socket.AI_V4MAPPED) != 0: + raise NotImplementedError + if host is None and service is None: + raise socket.gaierror(socket.EAI_NONAME) + v6addrs = [] + v4addrs = [] + canonical_name = None + try: + # Is host None or a V6 address literal? + if host is None: + canonical_name = 'localhost' + if flags & socket.AI_PASSIVE != 0: + v6addrs.append('::') + v4addrs.append('0.0.0.0') + else: + v6addrs.append('::1') + v4addrs.append('127.0.0.1') + else: + parts = host.split('%') + if len(parts) == 2: + ahost = parts[0] + else: + ahost = host + addr = dns.ipv6.inet_aton(ahost) + v6addrs.append(host) + canonical_name = host + except Exception: + _exc_clear() + try: + # Is it a V4 address literal? + addr = dns.ipv4.inet_aton(host) + v4addrs.append(host) + canonical_name = host + except Exception: + _exc_clear() + if flags & socket.AI_NUMERICHOST == 0: + try: + if family == socket.AF_INET6 or family == socket.AF_UNSPEC: + v6 = resolver._resolver.query(host, dns.rdatatype.AAAA, + raise_on_no_answer=False) + # Note that setting host ensures we query the same name + # for A as we did for AAAA. + host = v6.qname + canonical_name = v6.canonical_name.to_text(True) + if v6.rrset is not None: + for rdata in v6.rrset: + v6addrs.append(rdata.address) + if family == socket.AF_INET or family == socket.AF_UNSPEC: + v4 = resolver._resolver.query(host, dns.rdatatype.A, + raise_on_no_answer=False) + host = v4.qname + canonical_name = v4.canonical_name.to_text(True) + if v4.rrset is not None: + for rdata in v4.rrset: + v4addrs.append(rdata.address) + except dns.resolver.NXDOMAIN: + _exc_clear() + raise socket.gaierror(socket.EAI_NONAME) + except Exception: + _exc_clear() + raise socket.gaierror(socket.EAI_SYSTEM) + port = None + try: + # Is it a port literal? + if service is None: + port = 0 + else: + port = int(service) + except Exception: + _exc_clear() + if flags & socket.AI_NUMERICSERV == 0: + try: + port = socket.getservbyname(service) + except Exception: + _exc_clear() + + if port is None: + raise socket.gaierror(socket.EAI_NONAME) + tuples = [] + if socktype == 0: + socktypes = [socket.SOCK_DGRAM, socket.SOCK_STREAM] + else: + socktypes = [socktype] + if flags & socket.AI_CANONNAME != 0: + cname = canonical_name + else: + cname = '' + if family == socket.AF_INET6 or family == socket.AF_UNSPEC: + for addr in v6addrs: + for socktype in socktypes: + for proto in resolver._protocols_for_socktype[socktype]: + tuples.append((socket.AF_INET6, socktype, proto, + cname, (addr, port, 0, 0))) # XXX: gevent: this can get the scopeid wrong + if family == socket.AF_INET or family == socket.AF_UNSPEC: + for addr in v4addrs: + for socktype in socktypes: + for proto in resolver._protocols_for_socktype[socktype]: + tuples.append((socket.AF_INET, socktype, proto, + cname, (addr, port))) + if len(tuples) == 0: # pylint:disable=len-as-condition + raise socket.gaierror(socket.EAI_NONAME) + return tuples + + +resolver._getaddrinfo = _getaddrinfo + +HOSTS_TTL = 300.0 + +def _is_addr(host, parse=dns.ipv4.inet_aton): + if not host: + return False + assert isinstance(host, hostname_types), repr(host) + try: + parse(host) + except dns.exception.SyntaxError: + return False + else: + return True + +# Return True if host is a valid IPv4 address +_is_ipv4_addr = _is_addr + + +def _is_ipv6_addr(host): + # Return True if host is a valid IPv6 address + if host: + s = '%' if isinstance(host, str) else b'%' + host = host.split(s, 1)[0] + return _is_addr(host, dns.ipv6.inet_aton) + +class HostsFile(object): + """ + A class to read the contents of a hosts file (/etc/hosts). + """ + + LINES_RE = re.compile(r""" + \s* # Leading space + ([^\r\n#]+?) # The actual match, non-greedy so as not to include trailing space + \s* # Trailing space + (?:[#][^\r\n]+)? # Comments + (?:$|[\r\n]+) # EOF or newline + """, re.VERBOSE) + + def __init__(self, fname=None): + self.v4 = {} # name -> ipv4 + self.v6 = {} # name -> ipv6 + self.aliases = {} # name -> canonical_name + self.reverse = {} # ip addr -> some name + if fname is None: + if os.name == 'posix': + fname = '/etc/hosts' + elif os.name == 'nt': # pragma: no cover + fname = os.path.expandvars( + r'%SystemRoot%\system32\drivers\etc\hosts') + self.fname = fname + assert self.fname + self._last_load = 0 + + + def _readlines(self): + # Read the contents of the hosts file. + # + # Return list of lines, comment lines and empty lines are + # excluded. Note that this performs disk I/O so can be + # blocking. + with open(self.fname, 'rb') as fp: + fdata = fp.read() + + + # XXX: Using default decoding. Is that correct? + udata = fdata.decode(errors='ignore') if not isinstance(fdata, str) else fdata + + return self.LINES_RE.findall(udata) + + def load(self): # pylint:disable=too-many-locals + # Load hosts file + + # This will (re)load the data from the hosts + # file if it has changed. + + try: + load_time = os.stat(self.fname).st_mtime + needs_load = load_time > self._last_load + except (IOError, OSError): + from gevent import get_hub + get_hub().handle_error(self, *sys.exc_info()) + needs_load = False + + if not needs_load: + return + + v4 = {} + v6 = {} + aliases = {} + reverse = {} + + for line in self._readlines(): + parts = line.split() + if len(parts) < 2: + continue + ip = parts.pop(0) + if _is_ipv4_addr(ip): + ipmap = v4 + elif _is_ipv6_addr(ip): + if ip.startswith('fe80'): + # Do not use link-local addresses, OSX stores these here + continue + ipmap = v6 + else: + continue + cname = parts.pop(0).lower() + ipmap[cname] = ip + for alias in parts: + alias = alias.lower() + ipmap[alias] = ip + aliases[alias] = cname + + # XXX: This is wrong for ipv6 + if ipmap is v4: + ptr = '.'.join(reversed(ip.split('.'))) + '.in-addr.arpa' + else: + ptr = ip + '.ip6.arpa.' + if ptr not in reverse: + reverse[ptr] = cname + + self._last_load = load_time + self.v4 = v4 + self.v6 = v6 + self.aliases = aliases + self.reverse = reverse + + def iter_all_host_addr_pairs(self): + self.load() + for name, addr in iteritems(self.v4): + yield name, addr + for name, addr in iteritems(self.v6): + yield name, addr + +class _HostsAnswer(dns.resolver.Answer): + # Answer class for HostsResolver object + + def __init__(self, qname, rdtype, rdclass, rrset, raise_on_no_answer=True): + self.response = None + self.qname = qname + self.rdtype = rdtype + self.rdclass = rdclass + self.canonical_name = qname + if not rrset and raise_on_no_answer: + raise dns.resolver.NoAnswer() + self.rrset = rrset + self.expiration = (time.time() + + rrset.ttl if hasattr(rrset, 'ttl') else 0) + + +class _HostsResolver(object): + """ + Class to parse the hosts file + """ + + def __init__(self, fname=None, interval=HOSTS_TTL): + self.hosts_file = HostsFile(fname) + self.interval = interval + self._last_load = 0 + + def query(self, qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN, + tcp=False, source=None, raise_on_no_answer=True): # pylint:disable=unused-argument + # Query the hosts file + # + # The known rdtypes are dns.rdatatype.A, dns.rdatatype.AAAA and + # dns.rdatatype.CNAME. + # The ``rdclass`` parameter must be dns.rdataclass.IN while the + # ``tcp`` and ``source`` parameters are ignored. + # Return a HostAnswer instance or raise a dns.resolver.NoAnswer + # exception. + + now = time.time() + hosts_file = self.hosts_file + if self._last_load + self.interval < now: + self._last_load = now + hosts_file.load() + + rdclass = dns.rdataclass.IN # Always + if isinstance(qname, string_types): + name = qname + qname = dns.name.from_text(qname) + else: + name = str(qname) + + name = name.lower() + rrset = dns.rrset.RRset(qname, rdclass, rdtype) + rrset.ttl = self._last_load + self.interval - now + + if rdtype == dns.rdatatype.A: + mapping = hosts_file.v4 + kind = dns.rdtypes.IN.A.A + elif rdtype == dns.rdatatype.AAAA: + mapping = hosts_file.v6 + kind = dns.rdtypes.IN.AAAA.AAAA + elif rdtype == dns.rdatatype.CNAME: + mapping = hosts_file.aliases + kind = lambda c, t, addr: dns.rdtypes.ANY.CNAME.CNAME(c, t, dns.name.from_text(addr)) + elif rdtype == dns.rdatatype.PTR: + mapping = hosts_file.reverse + kind = lambda c, t, addr: dns.rdtypes.ANY.PTR.PTR(c, t, dns.name.from_text(addr)) + + + addr = mapping.get(name) + if not addr and qname.is_absolute(): + addr = mapping.get(name[:-1]) + if addr: + rrset.add(kind(rdclass, rdtype, addr)) + return _HostsAnswer(qname, rdtype, rdclass, rrset, raise_on_no_answer) + + def getaliases(self, hostname): + # Return a list of all the aliases of a given cname + + # Due to the way store aliases this is a bit inefficient, this + # clearly was an afterthought. But this is only used by + # gethostbyname_ex so it's probably fine. + aliases = self.hosts_file.aliases + result = [] + if hostname in aliases: + cannon = aliases[hostname] + else: + cannon = hostname + result.append(cannon) + for alias, cname in iteritems(aliases): + if cannon == cname: + result.append(alias) + result.remove(hostname) + return result + +class _DualResolver(object): + + def __init__(self): + self.hosts_resolver = _HostsResolver() + self.network_resolver = resolver.get_default_resolver() + self.network_resolver.cache = resolver.LRUCache() + + def query(self, qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN, + tcp=False, source=None, raise_on_no_answer=True, + _hosts_rdtypes=(dns.rdatatype.A, dns.rdatatype.AAAA, dns.rdatatype.PTR)): + # Query the resolver, using /etc/hosts + + # Behavior: + # 1. if hosts is enabled and contains answer, return it now + # 2. query nameservers for qname + if qname is None: + qname = '0.0.0.0' + + if not isinstance(qname, string_types): + if isinstance(qname, bytes): + qname = qname.decode("idna") + + if isinstance(qname, string_types): + qname = dns.name.from_text(qname, None) + + if isinstance(rdtype, string_types): + rdtype = dns.rdatatype.from_text(rdtype) + + if rdclass == dns.rdataclass.IN and rdtype in _hosts_rdtypes: + try: + answer = self.hosts_resolver.query(qname, rdtype, raise_on_no_answer=False) + except Exception: # pylint: disable=broad-except + from gevent import get_hub + get_hub().handle_error(self, *sys.exc_info()) + else: + if answer.rrset: + return answer + + return self.network_resolver.query(qname, rdtype, rdclass, + tcp, source, raise_on_no_answer=raise_on_no_answer) + +def _family_to_rdtype(family): + if family == socket.AF_INET: + rdtype = dns.rdatatype.A + elif family == socket.AF_INET6: + rdtype = dns.rdatatype.AAAA + else: + raise socket.gaierror(socket.EAI_FAMILY, + 'Address family not supported') + return rdtype + +class Resolver(AbstractResolver): + """ + An *experimental* resolver that uses `dnspython`_. + + This is typically slower than the default threaded resolver + (unless there's a cache hit, in which case it can be much faster). + It is usually much faster than the c-ares resolver. It tends to + scale well as more concurrent resolutions are attempted. + + Under Python 2, if the ``idna`` package is installed, this + resolver can resolve Unicode host names that the system resolver + cannot. + + .. note:: + + This **does not** use dnspython's default resolver object, or share any + classes with ``import dns``. A separate copy of the objects is imported to + be able to function in a non monkey-patched process. The documentation for the resolver + object still applies. + + The resolver that we use is available as the :attr:`resolver` attribute + of this object (typically ``gevent.get_hub().resolver.resolver``). + + .. caution:: + + Many of the same caveats about DNS results apply here as are documented + for :class:`gevent.resolver.ares.Resolver`. + + .. caution:: + + This resolver is experimental. It may be removed or modified in + the future. As always, feedback is welcome. + + .. versionadded:: 1.3a2 + + .. _dnspython: http://www.dnspython.org + """ + + def __init__(self, hub=None): # pylint: disable=unused-argument + if resolver._resolver is None: + _resolver = resolver._resolver = _DualResolver() + if config.resolver_nameservers: + _resolver.network_resolver.nameservers[:] = config.resolver_nameservers + if config.resolver_timeout: + _resolver.network_resolver.lifetime = config.resolver_timeout + # Different hubs in different threads could be sharing the same + # resolver. + assert isinstance(resolver._resolver, _DualResolver) + self._resolver = resolver._resolver + + @property + def resolver(self): + """ + The dnspython resolver object we use. + + This object has several useful attributes that can be used to + adjust the behaviour of the DNS system: + + * ``cache`` is a :class:`dns.resolver.LRUCache`. Its maximum size + can be configured by calling :meth:`resolver.cache.set_max_size` + * ``nameservers`` controls which nameservers to talk to + * ``lifetime`` configures a timeout for each individual query. + """ + return self._resolver.network_resolver + + def close(self): + pass + + def _getaliases(self, hostname, family): + if not isinstance(hostname, str): + if isinstance(hostname, bytes): + hostname = hostname.decode("idna") + aliases = self._resolver.hosts_resolver.getaliases(hostname) + net_resolver = self._resolver.network_resolver + rdtype = _family_to_rdtype(family) + while True: + try: + ans = net_resolver.query(hostname, dns.rdatatype.CNAME, rdtype) + except (dns.resolver.NoAnswer, dns.resolver.NXDOMAIN, dns.resolver.NoNameservers): + break + except dTimeout: + break + else: + aliases.extend(str(rr.target) for rr in ans.rrset) + hostname = ans[0].target + return aliases + + def getaddrinfo(self, host, port, family=0, socktype=0, proto=0, flags=0): + if ((host in (u'localhost', b'localhost') + or (_is_ipv6_addr(host) and host.startswith('fe80'))) + or not isinstance(host, str) or (flags & AI_NUMERICHOST)): + # this handles cases which do not require network access + # 1) host is None + # 2) host is of an invalid type + # 3) host is localhost or a link-local ipv6; dnspython returns the wrong + # scope-id for those. + # 3) AI_NUMERICHOST flag is set + + return _socket.getaddrinfo(host, port, family, socktype, proto, flags) + + if family == AF_UNSPEC: + # This tends to raise in the case that a v6 address did not exist + # but a v4 does. So we break it into two parts. + + # Note that if there is no ipv6 in the hosts file, but there *is* + # an ipv4, and there *is* an ipv6 in the nameservers, we will return + # both (from the first call). The system resolver on OS X only returns + # the results from the hosts file. doubleclick.com is one example. + + # See also https://github.com/gevent/gevent/issues/1012 + try: + return _getaddrinfo(host, port, family, socktype, proto, flags) + except socket.gaierror: + try: + return _getaddrinfo(host, port, AF_INET6, socktype, proto, flags) + except socket.gaierror: + return _getaddrinfo(host, port, AF_INET, socktype, proto, flags) + else: + return _getaddrinfo(host, port, family, socktype, proto, flags) + + def getnameinfo(self, sockaddr, flags): + if (sockaddr + and isinstance(sockaddr, (list, tuple)) + and sockaddr[0] in ('::1', '127.0.0.1', 'localhost')): + return _socket.getnameinfo(sockaddr, flags) + if isinstance(sockaddr, (list, tuple)) and not isinstance(sockaddr[0], hostname_types): + raise TypeError("getnameinfo(): illegal sockaddr argument") + try: + return resolver._getnameinfo(sockaddr, flags) + except error: + if not flags: + # dnspython doesn't like getting ports it can't resolve. + # We have one test, test__socket_dns.py:Test_getnameinfo_geventorg.test_port_zero + # that does this. We conservatively fix it here; this could be expanded later. + return resolver._getnameinfo(sockaddr, NI_NUMERICSERV) + + def gethostbyaddr(self, ip_address): + if ip_address in (u'127.0.0.1', u'::1', + b'127.0.0.1', b'::1', + 'localhost'): + return _socket.gethostbyaddr(ip_address) + + if not isinstance(ip_address, hostname_types): + raise TypeError("argument 1 must be str, bytes or bytearray, not %s" % (type(ip_address),)) + + return resolver._gethostbyaddr(ip_address) diff --git a/python/gevent/resolver/libcares.pxd b/python/gevent/resolver/libcares.pxd new file mode 100644 index 0000000..7b551a7 --- /dev/null +++ b/python/gevent/resolver/libcares.pxd @@ -0,0 +1,109 @@ +cdef extern from "ares.h": + struct ares_options: + int flags + void* sock_state_cb + void* sock_state_cb_data + int timeout + int tries + int ndots + unsigned short udp_port + unsigned short tcp_port + char **domains + int ndomains + char* lookups + + int ARES_OPT_FLAGS + int ARES_OPT_SOCK_STATE_CB + int ARES_OPT_TIMEOUTMS + int ARES_OPT_TRIES + int ARES_OPT_NDOTS + int ARES_OPT_TCP_PORT + int ARES_OPT_UDP_PORT + int ARES_OPT_SERVERS + int ARES_OPT_DOMAINS + int ARES_OPT_LOOKUPS + + int ARES_FLAG_USEVC + int ARES_FLAG_PRIMARY + int ARES_FLAG_IGNTC + int ARES_FLAG_NORECURSE + int ARES_FLAG_STAYOPEN + int ARES_FLAG_NOSEARCH + int ARES_FLAG_NOALIASES + int ARES_FLAG_NOCHECKRESP + + int ARES_LIB_INIT_ALL + int ARES_SOCKET_BAD + + int ARES_SUCCESS + int ARES_ENODATA + int ARES_EFORMERR + int ARES_ESERVFAIL + int ARES_ENOTFOUND + int ARES_ENOTIMP + int ARES_EREFUSED + int ARES_EBADQUERY + int ARES_EBADNAME + int ARES_EBADFAMILY + int ARES_EBADRESP + int ARES_ECONNREFUSED + int ARES_ETIMEOUT + int ARES_EOF + int ARES_EFILE + int ARES_ENOMEM + int ARES_EDESTRUCTION + int ARES_EBADSTR + int ARES_EBADFLAGS + int ARES_ENONAME + int ARES_EBADHINTS + int ARES_ENOTINITIALIZED + int ARES_ELOADIPHLPAPI + int ARES_EADDRGETNETWORKPARAMS + int ARES_ECANCELLED + + int ARES_NI_NOFQDN + int ARES_NI_NUMERICHOST + int ARES_NI_NAMEREQD + int ARES_NI_NUMERICSERV + int ARES_NI_DGRAM + int ARES_NI_TCP + int ARES_NI_UDP + int ARES_NI_SCTP + int ARES_NI_DCCP + int ARES_NI_NUMERICSCOPE + int ARES_NI_LOOKUPHOST + int ARES_NI_LOOKUPSERVICE + + + int ares_library_init(int flags) + void ares_library_cleanup() + int ares_init_options(void *channelptr, ares_options *options, int) + int ares_init(void *channelptr) + void ares_destroy(void *channelptr) + void ares_gethostbyname(void* channel, char *name, int family, void* callback, void *arg) + void ares_gethostbyaddr(void* channel, void *addr, int addrlen, int family, void* callback, void *arg) + void ares_process_fd(void* channel, int read_fd, int write_fd) + char* ares_strerror(int code) + void ares_cancel(void* channel) + void ares_getnameinfo(void* channel, void* sa, int salen, int flags, void* callback, void *arg) + + struct in_addr: + pass + + struct ares_in6_addr: + pass + + struct addr_union: + in_addr addr4 + ares_in6_addr addr6 + + struct ares_addr_node: + ares_addr_node *next + int family + addr_union addr + + int ares_set_servers(void* channel, ares_addr_node *servers) + + +cdef extern from "cares_pton.h": + int ares_inet_pton(int af, char *src, void *dst) diff --git a/python/gevent/resolver/thread.py b/python/gevent/resolver/thread.py new file mode 100644 index 0000000..df71706 --- /dev/null +++ b/python/gevent/resolver/thread.py @@ -0,0 +1,71 @@ +# Copyright (c) 2012-2015 Denis Bilenko. See LICENSE for details. +""" +Native thread-based hostname resolver. +""" +import _socket + +from gevent.hub import get_hub + + +__all__ = ['Resolver'] + + +# trigger import of encodings.idna to avoid https://github.com/gevent/gevent/issues/349 +u'foo'.encode('idna') + + +class Resolver(object): + """ + Implementation of the resolver API using native threads and native resolution + functions. + + Using the native resolution mechanisms ensures the highest + compatibility with what a non-gevent program would return + including good support for platform specific configuration + mechanisms. The use of native (non-greenlet) threads ensures that + a caller doesn't block other greenlets. + + This implementation also has the benefit of being very simple in comparison to + :class:`gevent.resolver_ares.Resolver`. + + .. tip:: + + Most users find this resolver to be quite reliable in a + properly monkey-patched environment. However, there have been + some reports of long delays, slow performance or even hangs, + particularly in long-lived programs that make many, many DNS + requests. If you suspect that may be happening to you, try the + dnspython or ares resolver (and submit a bug report). + """ + def __init__(self, hub=None): + if hub is None: + hub = get_hub() + self.pool = hub.threadpool + if _socket.gaierror not in hub.NOT_ERROR: + # Do not cause lookup failures to get printed by the default + # error handler. This can be very noisy. + hub.NOT_ERROR += (_socket.gaierror, _socket.herror) + + def __repr__(self): + return '<gevent.resolver_thread.Resolver at 0x%x pool=%r>' % (id(self), self.pool) + + def close(self): + pass + + # from briefly reading socketmodule.c, it seems that all of the functions + # below are thread-safe in Python, even if they are not thread-safe in C. + + def gethostbyname(self, *args): + return self.pool.apply(_socket.gethostbyname, args) + + def gethostbyname_ex(self, *args): + return self.pool.apply(_socket.gethostbyname_ex, args) + + def getaddrinfo(self, *args, **kwargs): + return self.pool.apply(_socket.getaddrinfo, args, kwargs) + + def gethostbyaddr(self, *args, **kwargs): + return self.pool.apply(_socket.gethostbyaddr, args, kwargs) + + def getnameinfo(self, *args, **kwargs): + return self.pool.apply(_socket.getnameinfo, args, kwargs) |