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Annotation of win32/redis/include/hiredis/alloc.h, revision 1.1

1.1     ! moko        1: /*
        !             2:  * Copyright (c) 2020, Michael Grunder <michael dot grunder at gmail dot com>
        !             3:  *
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions are met:
        !             8:  *
        !             9:  *   * Redistributions of source code must retain the above copyright notice,
        !            10:  *     this list of conditions and the following disclaimer.
        !            11:  *   * Redistributions in binary form must reproduce the above copyright
        !            12:  *     notice, this list of conditions and the following disclaimer in the
        !            13:  *     documentation and/or other materials provided with the distribution.
        !            14:  *   * Neither the name of Redis nor the names of its contributors may be used
        !            15:  *     to endorse or promote products derived from this software without
        !            16:  *     specific prior written permission.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
        !            19:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            20:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            21:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
        !            22:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            23:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            24:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            25:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            26:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            27:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            28:  * POSSIBILITY OF SUCH DAMAGE.
        !            29:  */
        !            30: 
        !            31: #ifndef HIREDIS_ALLOC_H
        !            32: #define HIREDIS_ALLOC_H
        !            33: 
        !            34: #include <stddef.h> /* for size_t */
        !            35: #include <stdint.h>
        !            36: 
        !            37: #ifdef __cplusplus
        !            38: extern "C" {
        !            39: #endif
        !            40: 
        !            41: /* Structure pointing to our actually configured allocators */
        !            42: typedef struct hiredisAllocFuncs {
        !            43:     void *(*mallocFn)(size_t);
        !            44:     void *(*callocFn)(size_t,size_t);
        !            45:     void *(*reallocFn)(void*,size_t);
        !            46:     char *(*strdupFn)(const char*);
        !            47:     void (*freeFn)(void*);
        !            48: } hiredisAllocFuncs;
        !            49: 
        !            50: hiredisAllocFuncs hiredisSetAllocators(hiredisAllocFuncs *ha);
        !            51: void hiredisResetAllocators(void);
        !            52: 
        !            53: #ifndef _WIN32
        !            54: 
        !            55: /* Hiredis' configured allocator function pointer struct */
        !            56: extern hiredisAllocFuncs hiredisAllocFns;
        !            57: 
        !            58: static inline void *hi_malloc(size_t size) {
        !            59:     return hiredisAllocFns.mallocFn(size);
        !            60: }
        !            61: 
        !            62: static inline void *hi_calloc(size_t nmemb, size_t size) {
        !            63:     /* Overflow check as the user can specify any arbitrary allocator */
        !            64:     if (SIZE_MAX / size < nmemb)
        !            65:         return NULL;
        !            66: 
        !            67:     return hiredisAllocFns.callocFn(nmemb, size);
        !            68: }
        !            69: 
        !            70: static inline void *hi_realloc(void *ptr, size_t size) {
        !            71:     return hiredisAllocFns.reallocFn(ptr, size);
        !            72: }
        !            73: 
        !            74: static inline char *hi_strdup(const char *str) {
        !            75:     return hiredisAllocFns.strdupFn(str);
        !            76: }
        !            77: 
        !            78: static inline void hi_free(void *ptr) {
        !            79:     hiredisAllocFns.freeFn(ptr);
        !            80: }
        !            81: 
        !            82: #else
        !            83: 
        !            84: void *hi_malloc(size_t size);
        !            85: void *hi_calloc(size_t nmemb, size_t size);
        !            86: void *hi_realloc(void *ptr, size_t size);
        !            87: char *hi_strdup(const char *str);
        !            88: void hi_free(void *ptr);
        !            89: 
        !            90: #endif
        !            91: 
        !            92: #ifdef __cplusplus
        !            93: }
        !            94: #endif
        !            95: 
        !            96: #endif /* HIREDIS_ALLOC_H */