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// Copyright 2015 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 <pthread.h>
#include <emscripten.h>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <vector>
#define NUM_BLOCKS_TO_ALLOC 50000
#define NUM_THREADS 8
pthread_mutex_t vectorMutex = PTHREAD_MUTEX_INITIALIZER;
std::vector<void*> allocatedMemory;
static void *thread_start(void *arg) {
for (int i = 0; i < NUM_BLOCKS_TO_ALLOC; ++i) {
void *mem = malloc(4);
pthread_mutex_lock(&vectorMutex);
allocatedMemory.push_back(mem);
pthread_mutex_unlock(&vectorMutex);
}
pthread_exit(0);
}
int main() {
pthread_t thr[NUM_THREADS];
for (int i = 0; i < NUM_THREADS; ++i) {
int rc = pthread_create(&thr[i], NULL, thread_start, 0);
assert(rc == 0);
}
unsigned long numBlocksToFree = NUM_BLOCKS_TO_ALLOC * NUM_THREADS;
while (numBlocksToFree > 0) {
pthread_mutex_lock(&vectorMutex);
for (size_t i = 0; i < allocatedMemory.size(); ++i) {
free(allocatedMemory[i]);
}
numBlocksToFree -= allocatedMemory.size();
allocatedMemory.clear();
pthread_mutex_unlock(&vectorMutex);
}
for (int i = 0; i < NUM_THREADS; ++i) {
int res = 0;
int rc = pthread_join(thr[i], (void**)&res);
assert(rc == 0);
assert(res == 0);
}
printf("Test finished successfully!\n");
return 0;
}
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