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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "malloc_wrapper.h"
int nghttp2_failmalloc = 0;
int nghttp2_failstart = 0;
int nghttp2_countmalloc = 1;
int nghttp2_nmalloc = 0;
#define CHECK_PREREQ \
do { \
if (nghttp2_failmalloc && nghttp2_nmalloc >= nghttp2_failstart) { \
return NULL; \
} \
if (nghttp2_countmalloc) { \
++nghttp2_nmalloc; \
} \
} while (0)
static void *my_malloc(size_t size, void *mud) {
(void)mud;
CHECK_PREREQ;
return malloc(size);
}
static void my_free(void *ptr, void *mud) {
(void)mud;
free(ptr);
}
static void *my_calloc(size_t nmemb, size_t size, void *mud) {
(void)mud;
CHECK_PREREQ;
return calloc(nmemb, size);
}
static void *my_realloc(void *ptr, size_t size, void *mud) {
(void)mud;
CHECK_PREREQ;
return realloc(ptr, size);
}
static nghttp2_mem mem = {NULL, my_malloc, my_free, my_calloc, my_realloc};
nghttp2_mem *nghttp2_mem_fm(void) { return &mem; }
static int failmalloc_bk, countmalloc_bk;
void nghttp2_failmalloc_pause(void) {
failmalloc_bk = nghttp2_failmalloc;
countmalloc_bk = nghttp2_countmalloc;
nghttp2_failmalloc = 0;
nghttp2_countmalloc = 0;
}
void nghttp2_failmalloc_unpause(void) {
nghttp2_failmalloc = failmalloc_bk;
nghttp2_countmalloc = countmalloc_bk;
}
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