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// Copyright 2016 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
#include <assert.h>
#include <emscripten/console.h>
#include <stdio.h>
#include <stdlib.h>
int totalAllocated;
int totalFreed;
extern "C"
{
extern void* emscripten_builtin_malloc(size_t bytes);
extern void emscripten_builtin_free(void* mem);
void * __attribute__((noinline)) malloc(size_t size)
{
++totalAllocated;
void *ptr = emscripten_builtin_malloc(size);
emscripten_console_logf("Allocated %zu bytes, got %p. %d pointers allocated total.\n", size, ptr, totalAllocated);
return ptr;
}
void __attribute__((noinline)) free(void *ptr)
{
++totalFreed;
emscripten_builtin_free(ptr);
emscripten_console_logf("Freed ptr %p, %d pointers freed total.\n", ptr, totalFreed);
}
}
// Mark as used to defeat LTO which can otherwise completely elimate the
// calls to malloc below.
void *out __attribute__((used));
int main()
{
// reset these globals here, to ignore any allocations during startup by the
// system
totalAllocated = 0;
totalFreed = 0;
for(int i = 0; i < 20; ++i)
{
void *ptr = malloc(1024 * 1024);
out = ptr;
free(ptr);
}
emscripten_console_logf("totalAllocated: %d\n", totalAllocated);
assert(totalAllocated == 20);
emscripten_console_logf("OK.\n");
return 0;
}
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