/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to

 * deal in the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 * sell copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

 * IN THE SOFTWARE.

 */

#include "uv.h"

#include "task.h"

#include <stdio.h>

#include <stdlib.h>

#define NUM_THREADS (20 * 1000)

static volatile int num_threads;

static void thread_entry(void* arg) {

  ASSERT(arg == (void *) 42);

  num_threads++;

  /* FIXME write barrier? */

}

BENCHMARK_IMPL(thread_create) {

  uint64_t start_time;

  double duration;

  uv_thread_t tid;

  int i, r;

  start_time = uv_hrtime();

  for (i = 0; i < NUM_THREADS; i++) {

    r = uv_thread_create(&tid, thread_entry, (void *) 42);

    ASSERT(r == 0);

    r = uv_thread_join(&tid;;

    ASSERT(r == 0);

  }

  duration = (uv_hrtime() - start_time) / 1e9;

  ASSERT(num_threads == NUM_THREADS);

  printf("%d threads created in %.2f seconds (%.0f/s)\n",

      NUM_THREADS, duration, NUM_THREADS / duration);

  return 0;

}