122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
#ifndef Py_MYMALLOC_H
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#define Py_MYMALLOC_H
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/***********************************************************
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Lowest-level memory allocation interface */
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#ifdef macintosh
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#define ANY void
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#endif
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#ifdef __STDC__
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#define ANY void
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#endif
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#ifdef __TURBOC__
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#define ANY void
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#endif
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#ifdef __GNUC__
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#define ANY void
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#endif
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#ifndef ANY
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#define ANY char
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef __cplusplus
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/* Move this down here since some C++ #include's don't like to be included
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inside an extern "C" */
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extern "C" {
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#endif
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#ifdef SYMANTEC__CFM68K__
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#pragma lib_export on
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#endif
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#ifndef HAVE_STDLIB_H
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extern ANY *malloc Py_PROTO((size_t));
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extern ANY *calloc Py_PROTO((size_t, size_t));
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extern ANY *realloc Py_PROTO((ANY *, size_t));
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extern void free Py_PROTO((ANY *)); /* XXX sometimes int on Unix old systems */
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#endif /* !HAVE_STDLIB */
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#ifndef NULL
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#define NULL ((ANY *)0)
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#endif
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#ifdef MALLOC_ZERO_RETURNS_NULL
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/* XXX Always allocate one extra byte, since some malloc's return NULL
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XXX for malloc(0) or realloc(p, 0). */
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#define _PyMem_EXTRA 1
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#else
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#define _PyMem_EXTRA 0
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#endif
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#define PyMem_NEW(type, n) \
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( (type *) 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 *) malloc(_PyMem_EXTRA + (n) * sizeof(type)); \
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else \
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(p) = (type *) realloc((ANY *)(p), \
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_PyMem_EXTRA + (n) * sizeof(type))
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#define PyMem_DEL(p) free((ANY *)p)
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#define PyMem_XDEL(p) if ((p) == NULL) ; else PyMem_DEL(p)
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/* Two sets of function wrappers around malloc and friends; useful if
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you 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 doesn't.
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The Python interpreter continues to use PyMem_NEW etc. */
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/* These wrappers around malloc call PyErr_NoMemory() on failure */
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extern ANY *Py_Malloc Py_PROTO((size_t));
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extern ANY *Py_Realloc Py_PROTO((ANY *, size_t));
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extern void Py_Free Py_PROTO((ANY *));
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/* These wrappers around malloc *don't* call anything on failure */
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extern ANY *PyMem_Malloc Py_PROTO((size_t));
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extern ANY *PyMem_Realloc Py_PROTO((ANY *, size_t));
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extern void PyMem_Free Py_PROTO((ANY *));
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_MYMALLOC_H */
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