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/*
* Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MM_INTERNAL_H_INCLUDED_
#define MM_INTERNAL_H_INCLUDED_
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef EVENT__DISABLE_MM_REPLACEMENT
/* Internal use only: Memory allocation functions. We give them nice short
* mm_names for our own use, but make sure that the symbols have longer names
* so they don't conflict with other libraries (like, say, libmm). */
/** Allocate uninitialized memory.
*
* @return On success, return a pointer to sz newly allocated bytes.
* On failure, set errno to ENOMEM and return NULL.
* If the argument sz is 0, simply return NULL.
*/
EVENT2_EXPORT_SYMBOL
void *event_mm_malloc_(size_t sz);
/** Allocate memory initialized to zero.
*
* @return On success, return a pointer to (count * size) newly allocated
* bytes, initialized to zero.
* On failure, or if the product would result in an integer overflow,
* set errno to ENOMEM and return NULL.
* If either arguments are 0, simply return NULL.
*/
EVENT2_EXPORT_SYMBOL
void *event_mm_calloc_(size_t count, size_t size);
/** Duplicate a string.
*
* @return On success, return a pointer to a newly allocated duplicate
* of a string.
* Set errno to ENOMEM and return NULL if a memory allocation error
* occurs (or would occur) in the process.
* If the argument str is NULL, set errno to EINVAL and return NULL.
*/
EVENT2_EXPORT_SYMBOL
char *event_mm_strdup_(const char *str);
EVENT2_EXPORT_SYMBOL
void *event_mm_realloc_(void *p, size_t sz);
EVENT2_EXPORT_SYMBOL
void event_mm_free_(void *p);
#define mm_malloc(sz) event_mm_malloc_(sz)
#define mm_calloc(count, size) event_mm_calloc_((count), (size))
#define mm_strdup(s) event_mm_strdup_(s)
#define mm_realloc(p, sz) event_mm_realloc_((p), (sz))
#define mm_free(p) event_mm_free_(p)
#else
#define mm_malloc(sz) malloc(sz)
#define mm_calloc(n, sz) calloc((n), (sz))
#define mm_strdup(s) strdup(s)
#define mm_realloc(p, sz) realloc((p), (sz))
#define mm_free(p) free(p)
#endif
#ifdef __cplusplus
}
#endif
#endif
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