mirror of
https://github.com/fluencelabs/wasmer
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55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/*
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* Copyright 2017 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <assert.h>
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#include "emscripten.h"
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int get_TOTAL_MEMORY() {
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return EM_ASM_INT({ return TOTAL_MEMORY });
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}
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typedef void* voidStar;
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int main(int argc, char **argv)
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{
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int totalMemory = get_TOTAL_MEMORY();
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int chunk = 1024*1024;
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volatile voidStar alloc;
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#ifdef FAIL_REALLOC_BUFFER
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EM_ASM({
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Module.seenOurReallocBuffer = false;
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Module['reallocBuffer'] = function() {
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Module.seenOurReallocBuffer = true;
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return null;
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};
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});
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#endif
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for (int i = 0; i < (totalMemory/chunk)+2; i++) {
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// make sure state remains the same if malloc fails
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void* sbrk_before = sbrk(0);
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alloc = malloc(chunk);
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printf("%d : %d\n", i, !!alloc);
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if (alloc == NULL) {
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assert(sbrk(0) == sbrk_before);
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assert(totalMemory == get_TOTAL_MEMORY());
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break;
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}
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}
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assert(alloc == NULL);
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#ifdef FAIL_REALLOC_BUFFER
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EM_ASM({
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assert(Module.seenOurReallocBuffer, 'our override should have been called');
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});
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#endif
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puts("ok.");
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return 0;
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}
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