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 * $Id$
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 #include <stdint.h>
82
83 #include "jasper/jas_malloc.h"
84
85 /******************************************************************************\
86 * Code.
87 \******************************************************************************/
88
89 #if defined(DEBUG_MEMALLOC)
90 #include "../../../local/src/memalloc.c"
91 #endif
92
93 #if !defined(DEBUG_MEMALLOC)
94
95 #define MEMALLOC_ALIGNMENT 32
96 #define MEMALLOC_ALIGN2
97 #undef MEMALLOC_ALIGN2
98
jas_malloc(size_t size)99 void *jas_malloc(size_t size)
100 {
101 #if defined(MEMALLOC_ALIGN2)
102 void *ptr;
103 abort();
104 if (posix_memalign(&ptr, MEMALLOC_ALIGNMENT, size)) {
105 return 0;
106 }
107 return ptr;
108 #endif
109 return malloc(size);
110 }
111
jas_free(void * ptr)112 void jas_free(void *ptr)
113 {
114 free(ptr);
115 }
116
jas_realloc(void * ptr,size_t size)117 void *jas_realloc(void *ptr, size_t size)
118 {
119 return ptr ? realloc(ptr, size) : malloc(size);
120 }
121
jas_realloc2(void * ptr,size_t nmemb,size_t size)122 void *jas_realloc2(void *ptr, size_t nmemb, size_t size)
123 {
124 if (!ptr)
125 return jas_alloc2(nmemb, size);
126 if (nmemb && SIZE_MAX / nmemb < size) {
127 errno = ENOMEM;
128 return NULL;
129 }
130 return jas_realloc(ptr, nmemb * size);
131
132 }
133
jas_alloc2(size_t nmemb,size_t size)134 void *jas_alloc2(size_t nmemb, size_t size)
135 {
136 if (nmemb && SIZE_MAX / nmemb < size) {
137 errno = ENOMEM;
138 return NULL;
139 }
140
141 return jas_malloc(nmemb * size);
142 }
143
jas_alloc3(size_t a,size_t b,size_t c)144 void *jas_alloc3(size_t a, size_t b, size_t c)
145 {
146 size_t n;
147
148 if (a && SIZE_MAX / a < b) {
149 errno = ENOMEM;
150 return NULL;
151 }
152
153 return jas_alloc2(a*b, c);
154 }
155
jas_calloc(size_t nmemb,size_t size)156 void *jas_calloc(size_t nmemb, size_t size)
157 {
158 void *ptr;
159
160 ptr = jas_alloc2(nmemb, size);
161 if (ptr)
162 memset(ptr, 0, nmemb*size);
163 return ptr;
164 }
165
166 #endif
167