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
25 static int done = 0;
26 static unsigned events = 0;
27 static unsigned result;
28
fastrand(void)29 static unsigned fastrand(void) {
30 static unsigned g = 0;
31 g = g * 214013 + 2531011;
32 return g;
33 }
34
work_cb(uv_work_t * req)35 static void work_cb(uv_work_t* req) {
36 req->data = &result;
37 *(unsigned*)req->data = fastrand();
38 }
39
after_work_cb(uv_work_t * req,int status)40 static 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
timer_cb(uv_timer_t * handle)46 static void timer_cb(uv_timer_t* handle) { done = 1; }
47
BENCHMARK_IMPL(queue_work)48 BENCHMARK_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
