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/*
* Copyright (c) 2000-2001, 2006 Sendmail, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
* $Id: heap.h,v 1.23 2006/08/15 00:53:46 ca Exp $
*/
/*
** Sendmail debugging memory allocation package.
** See libsm/heap.html for documentation.
*/
#ifndef SM_HEAP_H
# define SM_HEAP_H
# include <sm/io.h>
# include <stdlib.h>
# include <sm/debug.h>
# include <sm/exc.h>
/* change default to 0 for production? */
# ifndef SM_HEAP_CHECK
# define SM_HEAP_CHECK 1
# endif /* ! SM_HEAP_CHECK */
# if SM_HEAP_CHECK
# define sm_malloc_x(sz) sm_malloc_tagged_x(sz, __FILE__, __LINE__, SmHeapGroup)
# define sm_malloc(size) sm_malloc_tagged(size, __FILE__, __LINE__, SmHeapGroup)
# define sm_free(ptr) sm_free_tagged(ptr, __FILE__, __LINE__)
extern void *sm_malloc_tagged __P((size_t, char *, int, int));
extern void *sm_malloc_tagged_x __P((size_t, char *, int, int));
extern void sm_free_tagged __P((void *, char *, int));
extern void *sm_realloc_x __P((void *, size_t));
extern bool sm_heap_register __P((void *, size_t, char *, int, int));
extern void sm_heap_checkptr_tagged __P((void *, char *, int));
extern void sm_heap_report __P((SM_FILE_T *, int));
# else /* SM_HEAP_CHECK */
# define sm_malloc_tagged(size, file, line, grp) sm_malloc(size)
# define sm_malloc_tagged_x(size, file, line, grp) sm_malloc_x(size)
# define sm_free_tagged(ptr, file, line) sm_free(ptr)
# define sm_heap_register(ptr, size, file, line, grp) (true)
# define sm_heap_checkptr_tagged(ptr, tag, num) ((void)0)
# define sm_heap_report(file, verbose) ((void)0)
extern void *sm_malloc __P((size_t));
extern void *sm_malloc_x __P((size_t));
extern void *sm_realloc_x __P((void *, size_t));
extern void sm_free __P((void *));
# endif /* SM_HEAP_CHECK */
extern void *sm_realloc __P((void *, size_t));
# define sm_heap_checkptr(ptr) sm_heap_checkptr_tagged(ptr, __FILE__, __LINE__)
#if 0
/*
** sm_f[mc]alloc are plug in replacements for malloc and calloc
** which can be used in a context requiring a function pointer,
** and which are compatible with sm_free. Warning: sm_heap_report
** cannot report where storage leaked by sm_f[mc]alloc was allocated.
*/
/* XXX unused right now */
extern void *
sm_fmalloc __P((
size_t));
extern void *
sm_fcalloc __P((
size_t,
size_t));
#endif /* 0 */
/*
** Allocate 'permanent' storage that can be freed but may still be
** allocated when the process exits. sm_heap_report will not complain
** about a storage leak originating from a call to sm_pmalloc.
*/
# define sm_pmalloc(size) sm_malloc_tagged(size, __FILE__, __LINE__, 0)
# define sm_pmalloc_x(size) sm_malloc_tagged_x(size, __FILE__, __LINE__, 0)
# define sm_heap_group() SmHeapGroup
# define sm_heap_setgroup(g) (SmHeapGroup = (g))
# define sm_heap_newgroup() (SmHeapGroup = ++SmHeapMaxGroup)
#define SM_FREE(ptr) \
do \
{ \
if ((ptr) != NULL) \
{ \
sm_free(ptr); \
(ptr) = NULL; \
} \
} while (0)
extern int SmHeapGroup;
extern int SmHeapMaxGroup;
extern SM_DEBUG_T SmHeapTrace;
extern SM_DEBUG_T SmHeapCheck;
extern SM_EXC_T SmHeapOutOfMemory;
#endif /* ! SM_HEAP_H */
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