patch from Vladimir (move Py_Mem* interface to Include/pymem.h)

1 files changed, 5 insertions, 154 deletions

diff --git a/Include/pyport.h b/Include/pyport.h
index 6026a2b..f635703 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -9,6 +9,8 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #ifndef Py_PYPORT_H
 #define Py_PYPORT_H
 
+#include "config.h" /* include for defines */
+
 /**************************************************************************
 Symbols and macros to supply platform-independent interfaces to basic
 C language & library operations whose spellings vary across platforms.
@@ -220,9 +222,9 @@ extern double hypot(double, double);
 #endif 
 
 
-/***********************************
- * WRAPPER FOR malloc/realloc/free *
- ***********************************/
+/************************************
+ * MALLOC COMPATIBILITY FOR pymem.h *
+ ************************************/
 
 #ifndef DL_IMPORT       /* declarations for DLL import */
 #define DL_IMPORT(RTYPE) RTYPE
@@ -240,157 +242,6 @@ extern double hypot(double, double);
 #define _PyMem_EXTRA 0
 #endif
 
-/*
- * Core memory allocator
- * =====================
- */
-
-/* To make sure the interpreter is user-malloc friendly, all memory
-   APIs are implemented on top of this one.
-
-   The PyCore_* macros can be defined to make the interpreter use a
-   custom allocator. Note that they are for internal use only. Both
-   the core and extension modules should use the PyMem_* API.
-
-   See the comment block at the end of this file for two scenarios
-   showing how to use this to use a different allocator. */
-
-#ifndef PyCore_MALLOC_FUNC
-#undef PyCore_REALLOC_FUNC
-#undef PyCore_FREE_FUNC
-#define PyCore_MALLOC_FUNC      malloc
-#define PyCore_REALLOC_FUNC     realloc
-#define PyCore_FREE_FUNC        free
-#endif
-
-#ifndef PyCore_MALLOC_PROTO
-#undef PyCore_REALLOC_PROTO
-#undef PyCore_FREE_PROTO
-#define PyCore_MALLOC_PROTO    (size_t)
-#define PyCore_REALLOC_PROTO   (void *, size_t)
-#define PyCore_FREE_PROTO      (void *)
-#endif
-
-#ifdef NEED_TO_DECLARE_MALLOC_AND_FRIEND
-extern void *PyCore_MALLOC_FUNC PyCore_MALLOC_PROTO;
-extern void *PyCore_REALLOC_FUNC PyCore_REALLOC_PROTO;
-extern void PyCore_FREE_FUNC PyCore_FREE_PROTO;
-#endif
-
-#ifndef PyCore_MALLOC
-#undef PyCore_REALLOC
-#undef PyCore_FREE
-#define PyCore_MALLOC(n)        PyCore_MALLOC_FUNC(n)
-#define PyCore_REALLOC(p, n)    PyCore_REALLOC_FUNC((p), (n))
-#define PyCore_FREE(p)          PyCore_FREE_FUNC(p)
-#endif
-
-/* BEWARE:
-
-   Each interface exports both functions and macros. Extension modules
-   should normally use the functions for ensuring binary compatibility
-   of the user's code across Python versions. Subsequently, if the
-   Python runtime switches to its own malloc (different from standard
-   malloc), no recompilation is required for the extensions.
-
-   The macro versions trade compatibility for speed. They can be used
-   whenever there is a performance problem, but their use implies
-   recompilation of the code for each new Python release. The Python
-   core uses the macros because it *is* compiled on every upgrade.
-   This might not be the case with 3rd party extensions in a custom
-   setup (for example, a customer does not always have access to the
-   source of 3rd party deliverables). You have been warned! */
-
-/*
- * Raw memory interface
- * ====================
- */
-
-/* Functions */
-
-/* Function wrappers around PyCore_MALLOC and friends; useful if you
-   need to be sure that you are using the same memory allocator as
-   Python.  Note that the wrappers make sure that allocating 0 bytes
-   returns a non-NULL pointer, even if the underlying malloc
-   doesn't. Returned pointers must be checked for NULL explicitly.
-   No action is performed on failure. */
-extern DL_IMPORT(void *) PyMem_Malloc(size_t);
-extern DL_IMPORT(void *) PyMem_Realloc(void *, size_t);
-extern DL_IMPORT(void) PyMem_Free(void *);
-
-/* Starting from Python 1.6, the wrappers Py_{Malloc,Realloc,Free} are
-   no longer supported. They used to call PyErr_NoMemory() on failure. */
-
-/* Macros */
-#define PyMem_MALLOC(n)         PyCore_MALLOC(n)
-#define PyMem_REALLOC(p, n)     PyCore_REALLOC((void *)(p), (n))
-#define PyMem_FREE(p)           PyCore_FREE((void *)(p))
-
-/*
- * Type-oriented memory interface
- * ==============================
- */
-
-/* Functions */
-#define PyMem_New(type, n) \
-	( (type *) PyMem_Malloc((n) * sizeof(type)) )
-#define PyMem_Resize(p, type, n) \
-	( (p) = (type *) PyMem_Realloc((n) * sizeof(type)) )
-#define PyMem_Del(p) PyMem_Free(p)
-
-/* Macros */
-#define PyMem_NEW(type, n) \
-	( (type *) PyMem_MALLOC(_PyMem_EXTRA + (n) * sizeof(type)) )
-#define PyMem_RESIZE(p, type, n) \
-	if ((p) == NULL) \
-		(p) = (type *)(PyMem_MALLOC( \
-				    _PyMem_EXTRA + (n) * sizeof(type))); \
-	else \
-		(p) = (type *)(PyMem_REALLOC((p), \
-				    _PyMem_EXTRA + (n) * sizeof(type)))
-#define PyMem_DEL(p) PyMem_FREE(p)
-
-/* PyMem_XDEL is deprecated. To avoid the call when p is NULL,
-   it is recommended to write the test explicitly in the code.
-   Note that according to ANSI C, free(NULL) has no effect. */
-
-/* SCENARIOS
-
-   Here are two scenarios by Vladimir Marangozov (the author of the
-   memory allocation redesign).
-
-   1) Scenario A
-
-   Suppose you want to use a debugging malloc library that collects info on
-   where the malloc calls originate from. Assume the interface is:
-
-   d_malloc(size_t n, char* src_file, unsigned long src_line) c.s.
-
-   In this case, you would define (for example in config.h) :
-
-   #define PyCore_MALLOC_FUNC      d_malloc
-   ...
-   #define PyCore_MALLOC_PROTO	(size_t, char *, unsigned long)
-   ...
-   #define NEED_TO_DECLARE_MALLOC_AND_FRIEND
-
-   #define PyCore_MALLOC(n)	PyCore_MALLOC_FUNC((n), __FILE__, __LINE__)
-   ...
-
-   2) Scenario B
-
-   Suppose you want to use malloc hooks (defined & initialized in a 3rd party
-   malloc library) instead of malloc functions.  In this case, you would
-   define:
-
-   #define PyCore_MALLOC_FUNC	(*malloc_hook)
-   ...
-   #define NEED_TO_DECLARE_MALLOC_AND_FRIEND
-
-   and ignore the previous definitions about PyCore_MALLOC_FUNC, etc.
-
-
-*/
 
 /********************************************
  * WRAPPER FOR <time.h> and/or <sys/time.h> *