diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Misc/pymemcompat.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Misc/pymemcompat.h Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,85 @@ +/* The idea of this file is that you bundle it with your extension, + #include it, program to Python 2.3's memory API and have your + extension build with any version of Python from 1.5.2 through to + 2.3 (and hopefully beyond). */ + +#ifndef Py_PYMEMCOMPAT_H +#define Py_PYMEMCOMPAT_H + +#include "Python.h" + +/* There are three "families" of memory API: the "raw memory", "object + memory" and "object" families. (This is ignoring the matter of the + cycle collector, about which more is said below). + + Raw Memory: + + PyMem_Malloc, PyMem_Realloc, PyMem_Free + + Object Memory: + + PyObject_Malloc, PyObject_Realloc, PyObject_Free + + Object: + + PyObject_New, PyObject_NewVar, PyObject_Del + + The raw memory and object memory allocators both mimic the + malloc/realloc/free interface from ANSI C, but the object memory + allocator can (and, since 2.3, does by default) use a different + allocation strategy biased towards lots of "small" allocations. + + The object family is used for allocating Python objects, and the + initializers take care of some basic initialization (setting the + refcount to 1 and filling out the ob_type field) as well as having + a somewhat different interface. + + Do not mix the families! E.g. do not allocate memory with + PyMem_Malloc and free it with PyObject_Free. You may get away with + it quite a lot of the time, but there *are* scenarios where this + will break. You Have Been Warned. + + Also, in many versions of Python there are an insane amount of + memory interfaces to choose from. Use the ones described above. */ + +#if PY_VERSION_HEX < 0x01060000 +/* raw memory interface already present */ + +/* there is no object memory interface in 1.5.2 */ +#define PyObject_Malloc PyMem_Malloc +#define PyObject_Realloc PyMem_Realloc +#define PyObject_Free PyMem_Free + +/* the object interface is there, but the names have changed */ +#define PyObject_New PyObject_NEW +#define PyObject_NewVar PyObject_NEW_VAR +#define PyObject_Del PyMem_Free +#endif + +/* If your object is a container you probably want to support the + cycle collector, which was new in Python 2.0. + + Unfortunately, the interface to the collector that was present in + Python 2.0 and 2.1 proved to be tricky to use, and so changed in + 2.2 -- in a way that can't easily be papered over with macros. + + This file contains macros that let you program to the 2.2 GC API. + Your module will compile against any Python since version 1.5.2, + but the type will only participate in the GC in versions 2.2 and + up. Some work is still necessary on your part to only fill out the + tp_traverse and tp_clear fields when they exist and set tp_flags + appropriately. + + It is possible to support both the 2.0 and 2.2 GC APIs, but it's + not pretty and this comment block is too narrow to contain a + desciption of what's required... */ + +#if PY_VERSION_HEX < 0x020200B1 +#define PyObject_GC_New PyObject_New +#define PyObject_GC_NewVar PyObject_NewVar +#define PyObject_GC_Del PyObject_Del +#define PyObject_GC_Track(op) +#define PyObject_GC_UnTrack(op) +#endif + +#endif /* !Py_PYMEMCOMPAT_H */