mirror of
https://github.com/python/cpython.git
synced 2025-07-24 19:54:21 +00:00
patch from Vladimir (move Py_Mem* interface to Include/pymem.h)
This commit is contained in:
Peter Schneider-Kamp
parent
b88b0bce2a
commit
25f68944c2
10 changed files with 221 additions and 177 deletions
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@ -54,6 +54,8 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#include "pyport.h"
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#include "pyport.h"
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#include "pymem.h"
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#include "object.h"
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#include "object.h"
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#include "objimpl.h"
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#include "objimpl.h"
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@ -1,5 +1,3 @@
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#ifndef Py_MYMALLOC_H
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#define Py_MYMALLOC_H
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/***********************************************************
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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@ -15,6 +13,9 @@ THIS FILE IS OBSOLETE
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USE "pyport.h" INSTEAD
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USE "pyport.h" INSTEAD
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***************************************/
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***************************************/
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#ifndef Py_MYMALLOC_H
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#define Py_MYMALLOC_H
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/* Lowest-level memory allocation interface */
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/* Lowest-level memory allocation interface */
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#define ANY void /* For API compatibility only. Obsolete, do not use. */
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#define ANY void /* For API compatibility only. Obsolete, do not use. */
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@ -1,3 +1,13 @@
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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All rights reserved.
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See the file "Misc/COPYRIGHT" for information on usage and
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redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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******************************************************************/
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/***************************************
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/***************************************
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THIS FILE IS OBSOLETE
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THIS FILE IS OBSOLETE
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USE "pyport.h" INSTEAD
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USE "pyport.h" INSTEAD
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@ -1,9 +1,3 @@
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#ifndef Py_PROTO_H
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#define Py_PROTO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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@ -19,6 +13,12 @@ THIS FILE IS OBSOLETE
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DON'T USE Py_PROTO or Py_FPROTO anymore.
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DON'T USE Py_PROTO or Py_FPROTO anymore.
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***************************************/
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***************************************/
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#ifndef Py_PROTO_H
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#define Py_PROTO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_PROTOTYPES
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#ifdef HAVE_PROTOTYPES
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#define Py_PROTO(x) x
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#define Py_PROTO(x) x
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#else
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#else
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@ -1,9 +1,3 @@
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#ifndef Py_MYSELECT_H
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#define Py_MYSELECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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@ -19,6 +13,12 @@ THIS FILE IS OBSOLETE
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USE "pyport.h" INSTEAD
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USE "pyport.h" INSTEAD
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***************************************/
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***************************************/
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#ifndef Py_MYSELECT_H
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#define Py_MYSELECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Include file for users of select() */
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/* Include file for users of select() */
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/* NB caller must include <sys/types.h> */
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/* NB caller must include <sys/types.h> */
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@ -1,9 +1,3 @@
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#ifndef Py_MYTIME_H
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#define Py_MYTIME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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@ -19,6 +13,12 @@ THIS FILE IS OBSOLETE
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USE "pyport.h" INSTEAD
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USE "pyport.h" INSTEAD
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***************************************/
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***************************************/
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#ifndef Py_MYTIME_H
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#define Py_MYTIME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Include file instead of <time.h> and/or <sys/time.h> */
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/* Include file instead of <time.h> and/or <sys/time.h> */
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#ifdef TIME_WITH_SYS_TIME
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#ifdef TIME_WITH_SYS_TIME
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@ -10,12 +10,13 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#ifndef Py_OBJIMPL_H
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#ifndef Py_OBJIMPL_H
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#define Py_OBJIMPL_H
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#define Py_OBJIMPL_H
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#include "pymem.h"
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#ifdef __cplusplus
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#ifdef __cplusplus
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extern "C" {
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extern "C" {
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#endif
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#endif
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#include "pyport.h"
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/*
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/*
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Functions and macros for modules that implement new object types.
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Functions and macros for modules that implement new object types.
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You must first include "object.h".
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You must first include "object.h".
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@ -30,7 +30,7 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#include <stdlib.h>
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#include <stdlib.h>
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#endif
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#endif
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#include "pyport.h"
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#include "pymem.h"
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#include "pydebug.h"
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#include "pydebug.h"
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179
Include/pymem.h
Normal file
179
Include/pymem.h
Normal file
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@ -0,0 +1,179 @@
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/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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All rights reserved.
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|
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See the file "Misc/COPYRIGHT" for information on usage and
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redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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******************************************************************/
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/* Lowest-level memory allocation interface */
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#ifndef Py_PYMEM_H
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#define Py_PYMEM_H
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#include "pyport.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Core memory allocator
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* =====================
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*/
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/* To make sure the interpreter is user-malloc friendly, all memory
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APIs are implemented on top of this one.
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The PyCore_* macros can be defined to make the interpreter use a
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custom allocator. Note that they are for internal use only. Both
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the core and extension modules should use the PyMem_* API.
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See the comment block at the end of this file for two scenarios
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showing how to use this to use a different allocator. */
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#ifndef PyCore_MALLOC_FUNC
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#undef PyCore_REALLOC_FUNC
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#undef PyCore_FREE_FUNC
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#define PyCore_MALLOC_FUNC malloc
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#define PyCore_REALLOC_FUNC realloc
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#define PyCore_FREE_FUNC free
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#endif
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#ifndef PyCore_MALLOC_PROTO
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#undef PyCore_REALLOC_PROTO
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#undef PyCore_FREE_PROTO
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#define PyCore_MALLOC_PROTO (size_t)
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#define PyCore_REALLOC_PROTO (void *, size_t)
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#define PyCore_FREE_PROTO (void *)
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#endif
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#ifdef NEED_TO_DECLARE_MALLOC_AND_FRIEND
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extern void *PyCore_MALLOC_FUNC PyCore_MALLOC_PROTO;
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extern void *PyCore_REALLOC_FUNC PyCore_REALLOC_PROTO;
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extern void PyCore_FREE_FUNC PyCore_FREE_PROTO;
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#endif
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#ifndef PyCore_MALLOC
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#undef PyCore_REALLOC
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#undef PyCore_FREE
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#define PyCore_MALLOC(n) PyCore_MALLOC_FUNC(n)
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#define PyCore_REALLOC(p, n) PyCore_REALLOC_FUNC((p), (n))
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#define PyCore_FREE(p) PyCore_FREE_FUNC(p)
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#endif
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/* BEWARE:
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Each interface exports both functions and macros. Extension modules
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should normally use the functions for ensuring binary compatibility
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of the user's code across Python versions. Subsequently, if the
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Python runtime switches to its own malloc (different from standard
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malloc), no recompilation is required for the extensions.
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The macro versions trade compatibility for speed. They can be used
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whenever there is a performance problem, but their use implies
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recompilation of the code for each new Python release. The Python
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core uses the macros because it *is* compiled on every upgrade.
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This might not be the case with 3rd party extensions in a custom
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setup (for example, a customer does not always have access to the
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source of 3rd party deliverables). You have been warned! */
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/*
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* Raw memory interface
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* ====================
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*/
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/* Functions */
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/* Function wrappers around PyCore_MALLOC and friends; useful if you
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need to be sure that you are using the same memory allocator as
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Python. Note that the wrappers make sure that allocating 0 bytes
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returns a non-NULL pointer, even if the underlying malloc
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doesn't. Returned pointers must be checked for NULL explicitly.
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No action is performed on failure. */
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extern DL_IMPORT(void *) PyMem_Malloc(size_t);
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extern DL_IMPORT(void *) PyMem_Realloc(void *, size_t);
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extern DL_IMPORT(void) PyMem_Free(void *);
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/* Starting from Python 1.6, the wrappers Py_{Malloc,Realloc,Free} are
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no longer supported. They used to call PyErr_NoMemory() on failure. */
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/* Macros */
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#define PyMem_MALLOC(n) PyCore_MALLOC(n)
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#define PyMem_REALLOC(p, n) PyCore_REALLOC((void *)(p), (n))
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#define PyMem_FREE(p) PyCore_FREE((void *)(p))
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/*
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* Type-oriented memory interface
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* ==============================
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*/
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/* Functions */
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#define PyMem_New(type, n) \
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( (type *) PyMem_Malloc((n) * sizeof(type)) )
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#define PyMem_Resize(p, type, n) \
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( (p) = (type *) PyMem_Realloc((n) * sizeof(type)) )
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#define PyMem_Del(p) PyMem_Free(p)
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/* Macros */
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#define PyMem_NEW(type, n) \
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( (type *) PyMem_MALLOC(_PyMem_EXTRA + (n) * sizeof(type)) )
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#define PyMem_RESIZE(p, type, n) \
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if ((p) == NULL) \
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(p) = (type *)(PyMem_MALLOC( \
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_PyMem_EXTRA + (n) * sizeof(type))); \
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else \
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(p) = (type *)(PyMem_REALLOC((p), \
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_PyMem_EXTRA + (n) * sizeof(type)))
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#define PyMem_DEL(p) PyMem_FREE(p)
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/* PyMem_XDEL is deprecated. To avoid the call when p is NULL,
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it is recommended to write the test explicitly in the code.
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Note that according to ANSI C, free(NULL) has no effect. */
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#ifdef __cplusplus
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}
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#endif
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/* SCENARIOS
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Here are two scenarios by Vladimir Marangozov (the author of the
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memory allocation redesign).
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1) Scenario A
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Suppose you want to use a debugging malloc library that collects info on
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where the malloc calls originate from. Assume the interface is:
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d_malloc(size_t n, char* src_file, unsigned long src_line) c.s.
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In this case, you would define (for example in config.h) :
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#define PyCore_MALLOC_FUNC d_malloc
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...
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#define PyCore_MALLOC_PROTO (size_t, char *, unsigned long)
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...
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#define NEED_TO_DECLARE_MALLOC_AND_FRIEND
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#define PyCore_MALLOC(n) PyCore_MALLOC_FUNC((n), __FILE__, __LINE__)
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...
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2) Scenario B
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Suppose you want to use malloc hooks (defined & initialized in a 3rd party
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malloc library) instead of malloc functions. In this case, you would
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define:
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#define PyCore_MALLOC_FUNC (*malloc_hook)
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|
...
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#define NEED_TO_DECLARE_MALLOC_AND_FRIEND
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and ignore the previous definitions about PyCore_MALLOC_FUNC, etc.
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*/
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#endif /* !Py_PYMEM_H */
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159
Include/pyport.h
159
Include/pyport.h
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@ -9,6 +9,8 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#ifndef Py_PYPORT_H
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#ifndef Py_PYPORT_H
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#define Py_PYPORT_H
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#define Py_PYPORT_H
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#include "config.h" /* include for defines */
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/**************************************************************************
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/**************************************************************************
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Symbols and macros to supply platform-independent interfaces to basic
|
Symbols and macros to supply platform-independent interfaces to basic
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C language & library operations whose spellings vary across platforms.
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C language & library operations whose spellings vary across platforms.
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@ -220,9 +222,9 @@ extern double hypot(double, double);
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#endif
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#endif
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/***********************************
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/************************************
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* WRAPPER FOR malloc/realloc/free *
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* MALLOC COMPATIBILITY FOR pymem.h *
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***********************************/
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************************************/
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#ifndef DL_IMPORT /* declarations for DLL import */
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#ifndef DL_IMPORT /* declarations for DLL import */
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#define DL_IMPORT(RTYPE) RTYPE
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#define DL_IMPORT(RTYPE) RTYPE
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|
@ -240,157 +242,6 @@ extern double hypot(double, double);
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#define _PyMem_EXTRA 0
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#define _PyMem_EXTRA 0
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#endif
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#endif
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|
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/*
|
|
||||||
* Core memory allocator
|
|
||||||
* =====================
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|
||||||
*/
|
|
||||||
|
|
||||||
/* 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
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||||||
#undef PyCore_REALLOC_FUNC
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#undef PyCore_FREE_FUNC
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#define PyCore_MALLOC_FUNC malloc
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#define PyCore_REALLOC_FUNC realloc
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#define PyCore_FREE_FUNC free
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#endif
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#ifndef PyCore_MALLOC_PROTO
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|
||||||
#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> *
|
* WRAPPER FOR <time.h> and/or <sys/time.h> *
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue