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// Copyright 2019 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 <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include <pthread.h>
#include <emscripten.h>
#include <emscripten/threading.h>
#include <assert.h>
#include <thread>
struct Test
{
int threadId;
};
void *ThreadMain(void *arg)
{
EM_ASM(out('Thread ' + $0 + ' finished, exit()ing.'), ((Test*)arg)->threadId);
pthread_exit(0);
}
void RunTest(int test)
{
int NUM_THREADS = std::thread::hardware_concurrency();
assert(NUM_THREADS > 0);
EM_ASM(out('Main: Test ' + $0 + ' starting, with num cores: ' + $1), test, NUM_THREADS);
struct Test t[NUM_THREADS];
pthread_t thread[NUM_THREADS];
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 4*1024);
printf("Main thread has thread ID %d\n", (int)pthread_self());
assert(pthread_self() != 0);
EM_ASM(out('Main: Starting test ' + $0), test);
for(int i = 0; i < NUM_THREADS; ++i)
{
t[i].threadId = i;
int rc = pthread_create(&thread[i], &attr, ThreadMain, &t[i]);
assert(rc == 0);
}
pthread_attr_destroy(&attr);
for(int i = 0; i < NUM_THREADS; ++i)
{
int status = 1;
int rc = pthread_join(thread[i], (void**)&status);
assert(rc == 0);
assert(status == 0);
}
EM_ASM(out('Main: Test ' + $0 + ' finished.'), test);
}
int main()
{
if (!emscripten_has_threading_support())
{
#ifdef REPORT_RESULT
REPORT_RESULT(0);
#endif
printf("Skipped: Threading is not supported.\n");
return 0;
}
// Do a bunch of joins, verifying the Worker pool works.
for(int i = 0; i < 7; ++i)
RunTest(i);
#ifdef REPORT_RESULT
REPORT_RESULT(0);
#else
EM_ASM(out('Main: Test successfully finished.'));
#endif
}
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