Home | History | Annotate | Line # | Download | only in test 
      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 
     29 static unsigned fastrand(void) {
     30   static unsigned g = 0;
     31   g = g * 214013 + 2531011;
     32   return g;
     33 }
     34 
     35 static void work_cb(uv_work_t* req) {
     36   req->data = &result;
     37   *(unsigned*)req->data = fastrand();
     38 }
     39 
     40 static void after_work_cb(uv_work_t* req, int status) {
     41   events++;
     42   if (!done)
     43     ASSERT_EQ(0, uv_queue_work(req->loop, req, work_cb, after_work_cb));
     44 }
     45 
     46 static void timer_cb(uv_timer_t* handle) { done = 1; }
     47 
     48 BENCHMARK_IMPL(queue_work) {
     49   uv_timer_t timer_handle;
     50   uv_work_t work;
     51   uv_loop_t* loop;
     52   int timeout;
     53 
     54   loop = uv_default_loop();
     55   timeout = 5000;
     56 
     57   ASSERT_EQ(0, uv_timer_init(loop, &timer_handle));
     58   ASSERT_EQ(0, uv_timer_start(&timer_handle, timer_cb, timeout, 0));
     59 
     60   ASSERT_EQ(0, uv_queue_work(loop, &work, work_cb, after_work_cb));
     61   ASSERT_EQ(0, uv_run(loop, UV_RUN_DEFAULT));
     62 
     63   printf("%s async jobs in %.1f seconds (%s/s)\n", fmt(events), timeout / 1000.,
     64          fmt(events / (timeout / 1000.)));
     65 
     66   MAKE_VALGRIND_HAPPY();
     67   return 0;
     68 }
     69