72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
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/*
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* Spdylay - SPDY 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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#define __USE_GNU
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#include <dlfcn.h>
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int spdylay_failmalloc = 0;
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int spdylay_failstart = 0;
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int spdylay_countmalloc = 1;
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int spdylay_nmalloc = 0;
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static void* (*real_malloc)(size_t) = NULL;
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static void init(void)
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{
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real_malloc = dlsym(RTLD_NEXT, "malloc");
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}
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void* malloc(size_t size)
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{
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if(real_malloc == NULL) {
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init();
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}
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if(spdylay_failmalloc && spdylay_nmalloc >= spdylay_failstart) {
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return NULL;
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} else {
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if(spdylay_countmalloc) {
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++spdylay_nmalloc;
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}
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return real_malloc(size);
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}
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}
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static int failmalloc_bk, countmalloc_bk;
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void spdylay_failmalloc_pause(void)
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{
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failmalloc_bk = spdylay_failmalloc;
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countmalloc_bk = spdylay_countmalloc;
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spdylay_failmalloc = 0;
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spdylay_countmalloc = 0;
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}
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void spdylay_failmalloc_unpause(void)
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{
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spdylay_failmalloc = failmalloc_bk;
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spdylay_countmalloc = countmalloc_bk;
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}
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