void * thread_func (void *arg) { uint32_t thread_index = *((uint32_t *)arg); printf ("%s (thread index = %u) startng...\n", __FUNCTION__, thread_index); uint32_t count = 0; uint32_t val; while (count++ < 15) { // random micro second sleep from zero to 3 seconds int usec = ::rand() % 3000000; printf ("%s (thread = %u) doing a usleep (%d)...\n", __FUNCTION__, thread_index, usec); ::usleep (usec); if (count < 7) val = access_pool (); else val = access_pool (1); printf ("%s (thread = %u) after usleep access_pool returns %d (count=%d)...\n", __FUNCTION__, thread_index, val, count); } printf ("%s (thread index = %u) exiting...\n", __FUNCTION__, thread_index); return NULL; }
void thread_func (uint32_t thread_index) { printf ("%s (thread index = %u) startng...\n", __FUNCTION__, thread_index); barrier_wait(); uint32_t count = 0; uint32_t val; while (count++ < 15) { // random micro second sleep from zero to 3 seconds int usec = g_distribution(g_random_engine); printf ("%s (thread = %u) doing a usleep (%d)...\n", __FUNCTION__, thread_index, usec); std::this_thread::sleep_for(std::chrono::microseconds{usec}); if (count < 7) val = access_pool (); else val = access_pool (true); printf ("%s (thread = %u) after usleep access_pool returns %d (count=%d)...\n", __FUNCTION__, thread_index, val, count); } printf ("%s (thread index = %u) exiting...\n", __FUNCTION__, thread_index); }