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