tildefriends/deps/libuv/test/benchmark-queue-work.c

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/* Copyright libuv 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 "task.h"
#include "uv.h"
static int done = 0;
static unsigned events = 0;
static unsigned result;
static unsigned fastrand(void) {
static unsigned g = 0;
g = g * 214013 + 2531011;
return g;
}
static void work_cb(uv_work_t* req) {
req->data = &result;
*(unsigned*)req->data = fastrand();
}
static void after_work_cb(uv_work_t* req, int status) {
events++;
if (!done)
ASSERT_OK(uv_queue_work(req->loop, req, work_cb, after_work_cb));
}
static void timer_cb(uv_timer_t* handle) { done = 1; }
BENCHMARK_IMPL(queue_work) {
char fmtbuf[2][32];
uv_timer_t timer_handle;
uv_work_t work;
uv_loop_t* loop;
int timeout;
loop = uv_default_loop();
timeout = 5000;
ASSERT_OK(uv_timer_init(loop, &timer_handle));
ASSERT_OK(uv_timer_start(&timer_handle, timer_cb, timeout, 0));
ASSERT_OK(uv_queue_work(loop, &work, work_cb, after_work_cb));
ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
printf("%s async jobs in %.1f seconds (%s/s)\n",
fmt(&fmtbuf[0], events),
timeout / 1000.,
fmt(&fmtbuf[1], events / (timeout / 1000.)));
MAKE_VALGRIND_HAPPY(loop);
return 0;
}