1 /* 2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of 3 * British Columbia. 4 * Copyright (c) 2001-2002 Michael David Adams. 5 * All rights reserved. 6 */ 7 8 /* __START_OF_JASPER_LICENSE__ 9 * 10 * JasPer License Version 2.0 11 * 12 * Copyright (c) 2001-2006 Michael David Adams 13 * Copyright (c) 1999-2000 Image Power, Inc. 14 * Copyright (c) 1999-2000 The University of British Columbia 15 * 16 * All rights reserved. 17 * 18 * Permission is hereby granted, free of charge, to any person (the 19 * "User") obtaining a copy of this software and associated documentation 20 * files (the "Software"), to deal in the Software without restriction, 21 * including without limitation the rights to use, copy, modify, merge, 22 * publish, distribute, and/or sell copies of the Software, and to permit 23 * persons to whom the Software is furnished to do so, subject to the 24 * following conditions: 25 * 26 * 1. The above copyright notices and this permission notice (which 27 * includes the disclaimer below) shall be included in all copies or 28 * substantial portions of the Software. 29 * 30 * 2. The name of a copyright holder shall not be used to endorse or 31 * promote products derived from the Software without specific prior 32 * written permission. 33 * 34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS 35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER 36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO 40 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL 41 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING 42 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 43 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 44 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE 45 * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE 46 * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. 47 * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS 48 * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL 49 * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS 50 * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE 51 * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE 52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL 53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, 54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL 55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH 56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, 57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH 58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY 59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. 60 * 61 * __END_OF_JASPER_LICENSE__ 62 */ 63 64 /* 65 * Memory Allocator 66 * 67 * $Id: jas_malloc.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $ 68 */ 69 70 /******************************************************************************\ 71 * Includes. 72 \******************************************************************************/ 73 74 #include <stdio.h> 75 #include <stdlib.h> 76 77 /* We need the prototype for memset. */ 78 #include <string.h> 79 #include <limits.h> 80 #include <errno.h> 81 #if !defined _WIN32 || defined __MINGW__ || defined __MINGW32__ 82 #include <stdint.h> 83 #endif 84 85 #include "jasper/jas_malloc.h" 86 87 /******************************************************************************\ 88 * Code. 89 \******************************************************************************/ 90 91 #if defined(DEBUG_MEMALLOC) 92 #include "../../../local/src/memalloc.c" 93 #endif 94 95 #if !defined(DEBUG_MEMALLOC) 96 97 #define MEMALLOC_ALIGNMENT 32 98 #define MEMALLOC_ALIGN2 99 #undef MEMALLOC_ALIGN2 100 101 void *jas_malloc(size_t size) 102 { 103 #if defined(MEMALLOC_ALIGN2) 104 void *ptr; 105 abort(); 106 if (posix_memalign(&ptr, MEMALLOC_ALIGNMENT, size)) { 107 return 0; 108 } 109 return ptr; 110 #endif 111 return malloc(size); 112 } 113 114 void jas_free(void *ptr) 115 { 116 free(ptr); 117 } 118 119 void *jas_realloc(void *ptr, size_t size) 120 { 121 return ptr ? realloc(ptr, size) : malloc(size); 122 } 123 124 void *jas_realloc2(void *ptr, size_t nmemb, size_t size) 125 { 126 if (!ptr) 127 return jas_alloc2(nmemb, size); 128 if (nmemb && SIZE_MAX / nmemb < size) { 129 errno = ENOMEM; 130 return NULL; 131 } 132 return jas_realloc(ptr, nmemb * size); 133 134 } 135 136 void *jas_alloc2(size_t nmemb, size_t size) 137 { 138 if (nmemb && SIZE_MAX / nmemb < size) { 139 errno = ENOMEM; 140 return NULL; 141 } 142 143 return jas_malloc(nmemb * size); 144 } 145 146 void *jas_alloc3(size_t a, size_t b, size_t c) 147 { 148 size_t n; 149 150 if (a && SIZE_MAX / a < b) { 151 errno = ENOMEM; 152 return NULL; 153 } 154 155 return jas_alloc2(a*b, c); 156 } 157 158 void *jas_calloc(size_t nmemb, size_t size) 159 { 160 void *ptr; 161 162 ptr = jas_alloc2(nmemb, size); 163 if (ptr) 164 memset(ptr, 0, nmemb*size); 165 return ptr; 166 } 167 168 #endif 169
