1/* Copyright libuv contributors. All rights reserved.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22#include "task.h"
23#include "uv.h"
24
25static int done = 0;
26static unsigned events = 0;
27static unsigned result;
28
29static unsigned fastrand(void) {
30  static unsigned g = 0;
31  g = g * 214013 + 2531011;
32  return g;
33}
34
35static void work_cb(uv_work_t* req) {
36  req->data = &result;
37  *(unsigned*)req->data = fastrand();
38}
39
40static void after_work_cb(uv_work_t* req, int status) {
41  events++;
42  if (!done)
43    ASSERT_OK(uv_queue_work(req->loop, req, work_cb, after_work_cb));
44}
45
46static void timer_cb(uv_timer_t* handle) { done = 1; }
47
48BENCHMARK_IMPL(queue_work) {
49  char fmtbuf[2][32];
50  uv_timer_t timer_handle;
51  uv_work_t work;
52  uv_loop_t* loop;
53  int timeout;
54
55  loop = uv_default_loop();
56  timeout = 5000;
57
58  ASSERT_OK(uv_timer_init(loop, &timer_handle));
59  ASSERT_OK(uv_timer_start(&timer_handle, timer_cb, timeout, 0));
60
61  ASSERT_OK(uv_queue_work(loop, &work, work_cb, after_work_cb));
62  ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
63
64  printf("%s async jobs in %.1f seconds (%s/s)\n",
65         fmt(&fmtbuf[0], events),
66         timeout / 1000.,
67         fmt(&fmtbuf[1], events / (timeout / 1000.)));
68
69  MAKE_VALGRIND_HAPPY(loop);
70  return 0;
71}
72