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comparison: memory/build/mozmemory_wrap.c
memory/build/mozmemory_wrap.c
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:2f67ebefddf4 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include <string.h> | |
| 6 #include "mozmemory_wrap.h" | |
| 7 #include "mozilla/Types.h" | |
| 8 | |
| 9 /* Declare malloc implementation functions with the right return and | |
| 10 * argument types. */ | |
| 11 #define MALLOC_DECL(name, return_type, ...) \ | |
| 12 MOZ_MEMORY_API return_type name ## _impl(__VA_ARGS__); | |
| 13 #include "malloc_decls.h" | |
| 14 | |
| 15 #ifdef MOZ_WRAP_NEW_DELETE | |
| 16 /* operator new(unsigned int) */ | |
| 17 MOZ_MEMORY_API void * | |
| 18 mozmem_malloc_impl(_Znwj)(unsigned int size) | |
| 19 { | |
| 20 return malloc_impl(size); | |
| 21 } | |
| 22 /* operator new[](unsigned int) */ | |
| 23 MOZ_MEMORY_API void * | |
| 24 mozmem_malloc_impl(_Znaj)(unsigned int size) | |
| 25 { | |
| 26 return malloc_impl(size); | |
| 27 } | |
| 28 /* operator delete(void*) */ | |
| 29 MOZ_MEMORY_API void | |
| 30 mozmem_malloc_impl(_ZdlPv)(void *ptr) | |
| 31 { | |
| 32 free_impl(ptr); | |
| 33 } | |
| 34 /* operator delete[](void*) */ | |
| 35 MOZ_MEMORY_API void | |
| 36 mozmem_malloc_impl(_ZdaPv)(void *ptr) | |
| 37 { | |
| 38 free_impl(ptr); | |
| 39 } | |
| 40 /*operator new(unsigned int, std::nothrow_t const&)*/ | |
| 41 MOZ_MEMORY_API void * | |
| 42 mozmem_malloc_impl(_ZnwjRKSt9nothrow_t)(unsigned int size) | |
| 43 { | |
| 44 return malloc_impl(size); | |
| 45 } | |
| 46 /*operator new[](unsigned int, std::nothrow_t const&)*/ | |
| 47 MOZ_MEMORY_API void * | |
| 48 mozmem_malloc_impl(_ZnajRKSt9nothrow_t)(unsigned int size) | |
| 49 { | |
| 50 return malloc_impl(size); | |
| 51 } | |
| 52 /* operator delete(void*, std::nothrow_t const&) */ | |
| 53 MOZ_MEMORY_API void | |
| 54 mozmem_malloc_impl(_ZdlPvRKSt9nothrow_t)(void *ptr) | |
| 55 { | |
| 56 free_impl(ptr); | |
| 57 } | |
| 58 /* operator delete[](void*, std::nothrow_t const&) */ | |
| 59 MOZ_MEMORY_API void | |
| 60 mozmem_malloc_impl(_ZdaPvRKSt9nothrow_t)(void *ptr) | |
| 61 { | |
| 62 free_impl(ptr); | |
| 63 } | |
| 64 #endif | |
| 65 | |
| 66 /* strndup and strdup may be defined as macros in string.h, which would | |
| 67 * clash with the definitions below. */ | |
| 68 #undef strndup | |
| 69 #undef strdup | |
| 70 | |
| 71 #ifndef XP_DARWIN | |
| 72 MOZ_MEMORY_API char * | |
| 73 strndup_impl(const char *src, size_t len) | |
| 74 { | |
| 75 char* dst = (char*) malloc_impl(len + 1); | |
| 76 if (dst) { | |
| 77 strncpy(dst, src, len); | |
| 78 dst[len] = '\0'; | |
| 79 } | |
| 80 return dst; | |
| 81 } | |
| 82 | |
| 83 MOZ_MEMORY_API char * | |
| 84 strdup_impl(const char *src) | |
| 85 { | |
| 86 size_t len = strlen(src); | |
| 87 return strndup_impl(src, len); | |
| 88 } | |
| 89 #endif /* XP_DARWIN */ | |
| 90 | |
| 91 #ifdef ANDROID | |
| 92 #include <stdarg.h> | |
| 93 #include <stdio.h> | |
| 94 | |
| 95 MOZ_MEMORY_API int | |
| 96 vasprintf_impl(char **str, const char *fmt, va_list ap) | |
| 97 { | |
| 98 char* ptr, *_ptr; | |
| 99 int ret; | |
| 100 | |
| 101 if (str == NULL || fmt == NULL) { | |
| 102 return -1; | |
| 103 } | |
| 104 | |
| 105 ptr = (char*)malloc_impl(128); | |
| 106 if (ptr == NULL) { | |
| 107 *str = NULL; | |
| 108 return -1; | |
| 109 } | |
| 110 | |
| 111 ret = vsnprintf(ptr, 128, fmt, ap); | |
| 112 if (ret < 0) { | |
| 113 free_impl(ptr); | |
| 114 *str = NULL; | |
| 115 return -1; | |
| 116 } | |
| 117 | |
| 118 _ptr = realloc_impl(ptr, ret + 1); | |
| 119 if (_ptr == NULL) { | |
| 120 free_impl(ptr); | |
| 121 *str = NULL; | |
| 122 return -1; | |
| 123 } | |
| 124 | |
| 125 *str = _ptr; | |
| 126 | |
| 127 return ret; | |
| 128 } | |
| 129 | |
| 130 MOZ_MEMORY_API int | |
| 131 asprintf_impl(char **str, const char *fmt, ...) | |
| 132 { | |
| 133 int ret; | |
| 134 va_list ap; | |
| 135 va_start(ap, fmt); | |
| 136 | |
| 137 ret = vasprintf_impl(str, fmt, ap); | |
| 138 | |
| 139 va_end(ap); | |
| 140 | |
| 141 return ret; | |
| 142 } | |
| 143 #endif | |
| 144 | |
| 145 #ifdef XP_WIN | |
| 146 /* | |
| 147 * There's a fun allocator mismatch in (at least) the VS 2010 CRT | |
| 148 * (see the giant comment in $(topsrcdir)/mozglue/build/Makefile.in) | |
| 149 * that gets redirected here to avoid a crash on shutdown. | |
| 150 */ | |
| 151 void | |
| 152 dumb_free_thunk(void *ptr) | |
| 153 { | |
| 154 return; /* shutdown leaks that we don't care about */ | |
| 155 } | |
| 156 | |
| 157 #include <wchar.h> | |
| 158 | |
| 159 /* | |
| 160 * We also need to provide our own impl of wcsdup so that we don't ask | |
| 161 * the CRT for memory from its heap (which will then be unfreeable). | |
| 162 */ | |
| 163 wchar_t * | |
| 164 wcsdup_impl(const wchar_t *src) | |
| 165 { | |
| 166 size_t len = wcslen(src); | |
| 167 wchar_t *dst = (wchar_t*) malloc_impl((len + 1) * sizeof(wchar_t)); | |
| 168 if (dst) | |
| 169 wcsncpy(dst, src, len + 1); | |
| 170 return dst; | |
| 171 } | |
| 172 #endif /* XP_WIN */ |
