/*
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* Copyright (c) 2020, Michael Grunder <michael dot grunder at gmail dot com>
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*
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* All rights reserved.
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * 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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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef HIREDIS_ALLOC_H
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#define HIREDIS_ALLOC_H
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#include <stddef.h> /* for size_t */
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Structure pointing to our actually configured allocators */
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typedef struct hiredisAllocFuncs {
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void *(*mallocFn)(size_t);
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void *(*callocFn)(size_t,size_t);
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void *(*reallocFn)(void*,size_t);
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char *(*strdupFn)(const char*);
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void (*freeFn)(void*);
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} hiredisAllocFuncs;
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hiredisAllocFuncs hiredisSetAllocators(hiredisAllocFuncs *ha);
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void hiredisResetAllocators(void);
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#ifndef _WIN32
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/* Hiredis' configured allocator function pointer struct */
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extern hiredisAllocFuncs hiredisAllocFns;
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static inline void *hi_malloc(size_t size) {
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return hiredisAllocFns.mallocFn(size);
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}
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static inline void *hi_calloc(size_t nmemb, size_t size) {
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/* Overflow check as the user can specify any arbitrary allocator */
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if (SIZE_MAX / size < nmemb)
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return NULL;
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return hiredisAllocFns.callocFn(nmemb, size);
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}
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static inline void *hi_realloc(void *ptr, size_t size) {
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return hiredisAllocFns.reallocFn(ptr, size);
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}
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static inline char *hi_strdup(const char *str) {
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return hiredisAllocFns.strdupFn(str);
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}
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static inline void hi_free(void *ptr) {
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hiredisAllocFns.freeFn(ptr);
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}
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#else
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void *hi_malloc(size_t size);
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void *hi_calloc(size_t nmemb, size_t size);
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void *hi_realloc(void *ptr, size_t size);
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char *hi_strdup(const char *str);
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void hi_free(void *ptr);
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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 /* HIREDIS_ALLOC_H */
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