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cpython/Include/mymalloc.h

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* Added support for X11 modules. * Makefile: change location of FORMS library. * posixmodule.c: turn #if 0 into #ifdef MSDOS (stuff in unistd.h or not) * Almost all .h files: added CPP magic to avoid duplicate inclusions and to support inclusion from C++.
1993-07-28 11:05:47 +02:00
#ifndef Py_MYMALLOC_H
#define Py_MYMALLOC_H
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
/***********************************************************
Added 1995 copyright. object.h: made sizes and refcnts signed ints. stringobject.h: make getstrsize() signed int. methodobject.h: add METH_VARARGS and METH_FREENAME flag bit definitions.
1995-01-04 20:06:22 +01:00
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
All Rights Reserved
New permission notice, includes CNRI.
1996-10-25 16:44:06 +02:00
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
provided that the above copyright notice appear in all copies and that
New permission notice, includes CNRI.
1996-10-25 16:44:06 +02:00
both that copyright notice and this permission notice appear in
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
supporting documentation, and that the names of Stichting Mathematisch
New permission notice, includes CNRI.
1996-10-25 16:44:06 +02:00
Centrum or CWI or Corporation for National Research Initiatives or
CNRI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
While CWI is the initial source for this software, a modified version
is made available by the Corporation for National Research Initiatives
(CNRI) at the Internet address ftp://ftp.python.org.
STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
******************************************************************/
/* Lowest-level memory allocation interface */
#ifdef macintosh
#define ANY void
#endif
#ifdef __STDC__
#define ANY void
#endif
* compile.[ch]: support for lambda() * PROTO.h, mymalloc.h: added #ifdefs for TURBOC and GNUC. * allobjects.h: added #include "rangeobject.h" * Grammar: added lambda_input; relaxed syntax for exec. * bltinmodule.c: added bagof, map, reduce, lambda, xrange. * tupleobject.[ch]: added resizetuple(). * rangeobject.[ch]: new object type to speed up range operations (not convinced this is needed!!!)
1993-10-26 18:58:25 +01:00
#ifdef __TURBOC__
#define ANY void
#endif
#ifdef __GNUC__
#define ANY void
#endif
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
#ifndef ANY
#define ANY char
#endif
Merge alpha100 branch back to main trunk
1994-08-01 13:34:53 +02:00
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
changes for C++ (Tim MacKenzie)
1995-01-10 18:43:33 +01:00
#endif
#ifdef __cplusplus
Added Py_Malloc and friends as well as PyMem_Malloc and friends.
1997-08-05 03:59:22 +02:00
/* Move this down here since some C++ #include's don't like to be included
inside an extern "C" */
changes for C++ (Tim MacKenzie)
1995-01-10 18:43:33 +01:00
extern "C" {
#endif
Changed ifdef __CFM68K__ to ifdef SYMANTEC__CFM68K__: CW has its own unique set of ideosyncracies:-(
1995-06-27 15:12:09 +02:00
#ifdef SYMANTEC__CFM68K__
changes for Mac CFM-68K
1995-02-18 15:50:12 +01:00
#pragma lib_export on
#endif
Completely disable the declarations for malloc() and friends. Use #ifdef though, so if you still need these for a really backwards compiler you know what to do.
1997-08-21 18:13:37 +02:00
/* The following should never be necessary */
#ifdef NEED_TO_DECLARE_MALLOC_AND_FRIEND
The great renaming, phase two: all header files have been updated to use the new names exclusively, and the linker will see the new names. Files that import "Python.h" also only see the new names. Files that import "allobjects.h" will continue to be able to use the old names, due to the inclusion (in allobjects.h) of "rename2.h".
1995-01-12 12:45:45 +01:00
extern ANY *malloc Py_PROTO((size_t));
extern ANY *calloc Py_PROTO((size_t, size_t));
extern ANY *realloc Py_PROTO((ANY *, size_t));
extern void free Py_PROTO((ANY *)); /* XXX sometimes int on Unix old systems */
Completely disable the declarations for malloc() and friends. Use #ifdef though, so if you still need these for a really backwards compiler you know what to do.
1997-08-21 18:13:37 +02:00
#endif
Merge alpha100 branch back to main trunk
1994-08-01 13:34:53 +02:00
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
#ifndef NULL
Merge alpha100 branch back to main trunk
1994-08-01 13:34:53 +02:00
#define NULL ((ANY *)0)
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
#endif
Only add 1 byte to all malloc calls when it is known that malloc(0) or realloc(p, 0) returns NULL. See changes to configure script to be checked in later.
1997-07-11 00:40:54 +02:00
#ifdef MALLOC_ZERO_RETURNS_NULL
* mymalloc.h: always allocate one extra byte, since some malloc's return NULL for malloc(0) or realloc(p, 0). (This should be done differently than wasting one byte, but alas...) * Moved "add'l libraries" option in Makefile to an earlier place. * Remove argument compatibility hacks (b) and (c). * Add grey2mono, dither2mono and mono2grey to imageop. * Dup the fd in socket.fromfd(). * Added new modules mpz, md5 (by JH, requiring GNU MP 1.2). Affects Makefile and config.c. * socketmodule.c: added socket.fromfd(fd, family, type, [proto]), converted socket() to use of getargs().
1992-12-14 17:59:51 +01:00
/* XXX Always allocate one extra byte, since some malloc's return NULL
XXX for malloc(0) or realloc(p, 0). */
Only add 1 byte to all malloc calls when it is known that malloc(0) or realloc(p, 0) returns NULL. See changes to configure script to be checked in later.
1997-07-11 00:40:54 +02:00
#define _PyMem_EXTRA 1
#else
#define _PyMem_EXTRA 0
#endif
#define PyMem_NEW(type, n) \
( (type *) malloc(_PyMem_EXTRA + (n) * sizeof(type)) )
The great renaming, phase two: all header files have been updated to use the new names exclusively, and the linker will see the new names. Files that import "Python.h" also only see the new names. Files that import "allobjects.h" will continue to be able to use the old names, due to the inclusion (in allobjects.h) of "rename2.h".
1995-01-12 12:45:45 +01:00
#define PyMem_RESIZE(p, type, n) \
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
if ((p) == NULL) \
Only add 1 byte to all malloc calls when it is known that malloc(0) or realloc(p, 0) returns NULL. See changes to configure script to be checked in later.
1997-07-11 00:40:54 +02:00
(p) = (type *) malloc(_PyMem_EXTRA + (n) * sizeof(type)); \
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
else \
Only add 1 byte to all malloc calls when it is known that malloc(0) or realloc(p, 0) returns NULL. See changes to configure script to be checked in later.
1997-07-11 00:40:54 +02:00
(p) = (type *) realloc((ANY *)(p), \
_PyMem_EXTRA + (n) * sizeof(type))
The great renaming, phase two: all header files have been updated to use the new names exclusively, and the linker will see the new names. Files that import "Python.h" also only see the new names. Files that import "allobjects.h" will continue to be able to use the old names, due to the inclusion (in allobjects.h) of "rename2.h".
1995-01-12 12:45:45 +01:00
#define PyMem_DEL(p) free((ANY *)p)
#define PyMem_XDEL(p) if ((p) == NULL) ; else PyMem_DEL(p)
* renamed malloc.h mymalloc.h, and added MALLARG as the type of the argument to malloc() (size_t or unsigned int) * listobject.c: check for overflow of the size of the object, so things like range(0x7fffffff) will raise MemoryError instead of calling malloc() with -4 (and then crashing -- malloc's fault)
1992-08-19 18:46:30 +02:00
Added Py_Malloc and friends as well as PyMem_Malloc and friends.
1997-08-05 03:59:22 +02:00
/* Two sets of function wrappers around 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.
The Python interpreter continues to use PyMem_NEW etc. */
/* These wrappers around malloc call PyErr_NoMemory() on failure */
extern ANY *Py_Malloc Py_PROTO((size_t));
extern ANY *Py_Realloc Py_PROTO((ANY *, size_t));
extern void Py_Free Py_PROTO((ANY *));
/* These wrappers around malloc *don't* call anything on failure */
extern ANY *PyMem_Malloc Py_PROTO((size_t));
extern ANY *PyMem_Realloc Py_PROTO((ANY *, size_t));
extern void PyMem_Free Py_PROTO((ANY *));
* Added support for X11 modules. * Makefile: change location of FORMS library. * posixmodule.c: turn #if 0 into #ifdef MSDOS (stuff in unistd.h or not) * Almost all .h files: added CPP magic to avoid duplicate inclusions and to support inclusion from C++.
1993-07-28 11:05:47 +02:00
#ifdef __cplusplus
}
#endif
The great renaming, phase two: all header files have been updated to use the new names exclusively, and the linker will see the new names. Files that import "Python.h" also only see the new names. Files that import "allobjects.h" will continue to be able to use the old names, due to the inclusion (in allobjects.h) of "rename2.h".
1995-01-12 12:45:45 +01:00
* Added support for X11 modules. * Makefile: change location of FORMS library. * posixmodule.c: turn #if 0 into #ifdef MSDOS (stuff in unistd.h or not) * Almost all .h files: added CPP magic to avoid duplicate inclusions and to support inclusion from C++.
1993-07-28 11:05:47 +02:00
#endif /* !Py_MYMALLOC_H */
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