upstream/emscripten/test/pthread/main_thread_wait.c

// 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 <assert.h>
#include <emscripten.h>
#include <pthread.h>
#include <stdio.h>

int main() {
  // This should fail on the main thread.
  puts("trying to block...");
  pthread_cond_t cv = PTHREAD_COND_INITIALIZER;
  pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
  pthread_cond_wait(&cv, &lock);
  puts("blocked ok.");
  return 0;
}