From 7d7ca8ee2eaae704989a1552ad429794d402f550 Mon Sep 17 00:00:00 2001
From: Andreas Monzner <andreas.monzner@multimedia-labs.de>
Date: Thu, 23 Nov 2006 16:31:19 +0000
Subject: add PyObject refcount debugging code

---
 lib/python/Makefile.am   |  3 +++
 lib/python/connections.h |  1 -
 lib/python/python.cpp    | 39 ++++++++++++++++++++++++++++++++++++++-
 lib/python/python.h      | 27 +++++++++++++++++++++++++--
 4 files changed, 66 insertions(+), 4 deletions(-)

(limited to 'lib/python')

diff --git a/lib/python/Makefile.am b/lib/python/Makefile.am
index 1cc01544..e0d5f0cd 100644
--- a/lib/python/Makefile.am
+++ b/lib/python/Makefile.am
@@ -11,6 +11,9 @@ libenigma_python_a_SOURCES = \
 
 enigma_python_wrap.cxx: enigma_python.i
 	swig -I$(top_srcdir)/ -c++ -python enigma_python.i
+	echo "#include <lib/python/python.h>" > bla.cxx
+	cat enigma_python_wrap.cxx >> bla.cxx
+	mv bla.cxx enigma_python_wrap.cxx
 
 installdir = $(LIBDIR)/enigma2/python
 
diff --git a/lib/python/connections.h b/lib/python/connections.h
index 8a06f7fa..9da6a002 100644
--- a/lib/python/connections.h
+++ b/lib/python/connections.h
@@ -7,7 +7,6 @@
 #include <features.h>
 #undef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 200112L
-#include <Python.h>
 #include <lib/python/python.h>
 
 class PSignal
diff --git a/lib/python/python.cpp b/lib/python/python.cpp
index 119bff1c..2636a3d5 100644
--- a/lib/python/python.cpp
+++ b/lib/python/python.cpp
@@ -1,4 +1,3 @@
-#include <lib/python/python.h>
 #include <lib/base/eerror.h>
                 /* avoid warnigs :) */
 #undef _POSIX_C_SOURCE
@@ -8,6 +7,44 @@
 extern "C" void init_enigma();
 extern void bsodFatal();
 
+void Impl_Py_DECREF(const char* file, int line, PyObject *obj)
+{
+	if (!obj)
+	{
+		eDebug("decref python object null pointer %s %d!!!",
+			file, line);
+		bsodFatal();
+	}
+	if (obj->ob_refcnt <= 0)
+	{
+		eDebug("decref python object with refcounting value %d (%s %d)!!!", obj->ob_refcnt, file, line);
+		bsodFatal();
+	}
+	Py_DECREF(obj);
+}
+
+void Impl_Py_INCREF(const char* file, int line, PyObject *obj)
+{
+	if (!obj)
+	{
+		eDebug("incref python object null pointer %s %d!!!", file, line);
+		bsodFatal();
+	}
+	if (obj->ob_refcnt <= 0)
+	{
+		eDebug("incref python object with refcounting value %d (%s %d)!!!", obj->ob_refcnt, file, line);
+		bsodFatal();
+	}
+	if (obj->ob_refcnt == 0x7FFFFFFF)
+	{
+		eDebug("incref python object with refcounting value %d (MAX_INT!!!) (%s %d)!!!", obj->ob_refcnt, file, line);
+		bsodFatal();
+	}
+	Py_INCREF(obj);
+}
+
+#include <lib/python/python.h>
+
 DEFINE_REF(TestObj);
 
 TestObj::TestObj()
diff --git a/lib/python/python.h b/lib/python/python.h
index 46e1a03d..27d2a9b1 100644
--- a/lib/python/python.h
+++ b/lib/python/python.h
@@ -3,10 +3,33 @@
 
 #include <string>
 #include <lib/base/object.h>
-
-typedef struct _object PyObject;
+#include <Python.h>
 
 // useable for debugging python refcounting
+#undef Py_DECREF
+#undef Py_XDECREF
+#undef Py_INCREF
+#undef Py_XINCREF
+#define Py_XDECREF(obj) Impl_Py_XDECREF(__FILE__, __LINE__, obj)
+#define Py_DECREF(obj) Impl_Py_DECREF(__FILE__, __LINE__, obj)
+#define Py_XINCREF(obj) Impl_Py_XINCREF(__FILE__, __LINE__, obj)
+#define Py_INCREF(obj) Impl_Py_INCREF(__FILE__, __LINE__, obj)
+
+void Impl_Py_DECREF(const char* file, int line, PyObject *obj);
+
+inline void Impl_Py_XDECREF(const char* file, int line, PyObject *obj)
+{
+	if (obj)
+		Impl_Py_DECREF(file, line, obj);
+}
+
+void Impl_Py_INCREF(const char* file, int line, PyObject *obj);
+
+inline void Impl_Py_XINCREF(const char* file, int line, PyObject *obj)
+{
+	if (obj)
+		Impl_Py_INCREF(file, line, obj);
+}
 
 extern PyObject *New_TestObj();
 
-- 
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