Function main

test/pthread/test_pthread_preallocates_workers.c:36–63

}

int main()
{
  // This test should be run with a prewarmed pool of size 4. None
  // of the threads are allocated yet.
  assert(EM_ASM_INT(return PThread.unusedWorkers.length) == 4);
  assert(EM_ASM_INT(return Object.keys(PThread.pthreads).length) == 0);

  CreateThread(0);

  // We have one running thread, allocated on demand.
  assert(EM_ASM_INT(return PThread.unusedWorkers.length) == 3);
  assert(EM_ASM_INT(return Object.keys(PThread.pthreads).length) == 1);

  for (int i = 1; i < 5; ++i) {
    CreateThread(i);
  }

  // All the preallocated workers should be used.
  // We can't join the threads or we'll hang forever. The main thread
  // won't give up the thread to let the 5th thread be created. This is
  // solved in non-test cases by using PROXY_TO_PTHREAD, but we can't
  // do that here since we need to eval the length of the various pthread
  // arrays.
  assert(EM_ASM_INT(return Object.keys(PThread.pthreads).length) == 5);
  assert(EM_ASM_INT(return PThread.unusedWorkers.length) == 0);

  return 0;
}