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