1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// 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 <assert.h>
#include <stdio.h>
#include <pthread.h>
#include <emscripten.h>
#include <emscripten/threading.h>
_Atomic int numInitialized = 0;
void once_init() {
numInitialized++;
}
#define NUM_THREADS 8
void *thread_main(void *arg)
{
static pthread_once_t control = PTHREAD_ONCE_INIT;
pthread_once(&control, &once_init);
assert(numInitialized == 1);
pthread_exit(0);
}
pthread_t thread[NUM_THREADS];
int main() {
assert(numInitialized == 0);
for (int i = 0; i < NUM_THREADS; ++i) {
pthread_create(&thread[i], NULL, thread_main, 0);
}
if (emscripten_has_threading_support()) {
for(int i = 0; i < NUM_THREADS; ++i) pthread_join(thread[i], NULL);
assert(numInitialized == 1);
}
return 0;
}
|
