1 files changed, 27 insertions, 0 deletions
diff --git a/python/gevent/_ffi/__init__.py b/python/gevent/_ffi/__init__.py
new file mode 100644
index 0000000..56f1e96
--- /dev/null
+++ b/python/gevent/_ffi/__init__.py
@@ -0,0 +1,27 @@
+"""
+Internal helpers for FFI implementations.
+"""
+from __future__ import print_function, absolute_import
+
+import os
+import sys
+
+def _dbg(*args, **kwargs):
+    # pylint:disable=unused-argument
+    pass
+
+#_dbg = print
+
+def _pid_dbg(*args, **kwargs):
+    kwargs['file'] = sys.stderr
+    print(os.getpid(), *args, **kwargs)
+
+CRITICAL = 1
+ERROR = 3
+DEBUG = 5
+TRACE = 9
+
+GEVENT_DEBUG_LEVEL = vars()[os.getenv("GEVENT_DEBUG", 'CRITICAL').upper()]
+
+if GEVENT_DEBUG_LEVEL >= TRACE:
+    _dbg = _pid_dbg