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Diffstat (limited to 'Utilities/cmcurl/lib/curl_memory.h')
| -rw-r--r-- | Utilities/cmcurl/lib/curl_memory.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_memory.h b/Utilities/cmcurl/lib/curl_memory.h new file mode 100644 index 0000000..714ad71 --- /dev/null +++ b/Utilities/cmcurl/lib/curl_memory.h @@ -0,0 +1,178 @@ +#ifndef HEADER_CURL_MEMORY_H +#define HEADER_CURL_MEMORY_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at https://curl.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * SPDX-License-Identifier: curl + * + ***************************************************************************/ + +/* + * Nasty internal details ahead... + * + * File curl_memory.h must be included by _all_ *.c source files + * that use memory related functions strdup, malloc, calloc, realloc + * or free, and given source file is used to build libcurl library. + * It should be included immediately before memdebug.h as the last files + * included to avoid undesired interaction with other memory function + * headers in dependent libraries. + * + * There is nearly no exception to above rule. All libcurl source + * files in 'lib' subdirectory as well as those living deep inside + * 'packages' subdirectories and linked together in order to build + * libcurl library shall follow it. + * + * File lib/strdup.c is an exception, given that it provides a strdup + * clone implementation while using malloc. Extra care needed inside + * this one. + * + * The need for curl_memory.h inclusion is due to libcurl's feature + * of allowing library user to provide memory replacement functions, + * memory callbacks, at runtime with curl_global_init_mem() + * + * Any *.c source file used to build libcurl library that does not + * include curl_memory.h and uses any memory function of the five + * mentioned above will compile without any indication, but it will + * trigger weird memory related issues at runtime. + * + */ + +#ifdef HEADER_CURL_MEMDEBUG_H +/* cleanup after memdebug.h */ + +#ifdef MEMDEBUG_NODEFINES +#ifdef CURLDEBUG + +#undef strdup +#undef malloc +#undef calloc +#undef realloc +#undef free +#undef send +#undef recv + +#ifdef _WIN32 +# ifdef UNICODE +# undef wcsdup +# undef _wcsdup +# undef _tcsdup +# else +# undef _tcsdup +# endif +#endif + +#undef socket +#undef accept +#ifdef HAVE_SOCKETPAIR +#undef socketpair +#endif + +#ifdef HAVE_GETADDRINFO +#if defined(getaddrinfo) && defined(__osf__) +#undef ogetaddrinfo +#else +#undef getaddrinfo +#endif +#endif /* HAVE_GETADDRINFO */ + +#ifdef HAVE_FREEADDRINFO +#undef freeaddrinfo +#endif /* HAVE_FREEADDRINFO */ + +/* sclose is probably already defined, redefine it! */ +#undef sclose +#undef fopen +#undef fdopen +#undef fclose + +#endif /* MEMDEBUG_NODEFINES */ +#endif /* CURLDEBUG */ + +#undef HEADER_CURL_MEMDEBUG_H +#endif /* HEADER_CURL_MEMDEBUG_H */ + +/* +** Following section applies even when CURLDEBUG is not defined. +*/ + +#undef fake_sclose + +#ifndef CURL_DID_MEMORY_FUNC_TYPEDEFS /* only if not already done */ +/* + * The following memory function replacement typedef's are COPIED from + * curl/curl.h and MUST match the originals. We copy them to avoid having to + * include curl/curl.h here. We avoid that include since it includes stdio.h + * and other headers that may get messed up with defines done here. + */ +typedef void *(*curl_malloc_callback)(size_t size); +typedef void (*curl_free_callback)(void *ptr); +typedef void *(*curl_realloc_callback)(void *ptr, size_t size); +typedef char *(*curl_strdup_callback)(const char *str); +typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size); +#define CURL_DID_MEMORY_FUNC_TYPEDEFS +#endif + +extern curl_malloc_callback Curl_cmalloc; +extern curl_free_callback Curl_cfree; +extern curl_realloc_callback Curl_crealloc; +extern curl_strdup_callback Curl_cstrdup; +extern curl_calloc_callback Curl_ccalloc; +#if defined(_WIN32) && defined(UNICODE) +extern curl_wcsdup_callback Curl_cwcsdup; +#endif + +#ifndef CURLDEBUG + +/* + * libcurl's 'memory tracking' system defines strdup, malloc, calloc, + * realloc and free, along with others, in memdebug.h in a different + * way although still using memory callbacks forward declared above. + * When using the 'memory tracking' system (CURLDEBUG defined) we do + * not define here the five memory functions given that definitions + * from memdebug.h are the ones that shall be used. + */ + +#undef strdup +#define strdup(ptr) Curl_cstrdup(ptr) +#undef malloc +#define malloc(size) Curl_cmalloc(size) +#undef calloc +#define calloc(nbelem,size) Curl_ccalloc(nbelem, size) +#undef realloc +#define realloc(ptr,size) Curl_crealloc(ptr, size) +#undef free +#define free(ptr) Curl_cfree(ptr) + +#ifdef _WIN32 +# ifdef UNICODE +# undef wcsdup +# define wcsdup(ptr) Curl_cwcsdup(ptr) +# undef _wcsdup +# define _wcsdup(ptr) Curl_cwcsdup(ptr) +# undef _tcsdup +# define _tcsdup(ptr) Curl_cwcsdup(ptr) +# else +# undef _tcsdup +# define _tcsdup(ptr) Curl_cstrdup(ptr) +# endif +#endif + +#endif /* CURLDEBUG */ +#endif /* HEADER_CURL_MEMORY_H */ |