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      1 /* Copyright libuv project 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 "uv.h"
     23 #include "task.h"
     24 #include <stdio.h>
     25 #include <stdlib.h>
     26 #include <errno.h>
     27 
     28 #if !defined(_WIN32) && !defined(_AIX)
     29 #include <poll.h>
     30 #endif
     31 
     32 static uv_async_t async;
     33 static uv_barrier_t barrier;
     34 
     35 
     36 static void thread_main(void* arg) {
     37   ASSERT_LE(0, uv_barrier_wait(&barrier));
     38   uv_sleep(250);
     39   ASSERT_OK(uv_async_send(&async));
     40 }
     41 
     42 
     43 static void async_cb(uv_async_t* handle) {
     44   uv_close((uv_handle_t*) handle, NULL);
     45 }
     46 
     47 
     48 TEST_IMPL(embed) {
     49   uv_thread_t thread;
     50   uv_loop_t* loop;
     51 
     52   loop = uv_default_loop();
     53   ASSERT_OK(uv_async_init(loop, &async, async_cb));
     54   ASSERT_OK(uv_barrier_init(&barrier, 2));
     55   ASSERT_OK(uv_thread_create(&thread, thread_main, NULL));
     56   ASSERT_LE(0, uv_barrier_wait(&barrier));
     57 
     58   while (uv_loop_alive(loop)) {
     59 #if defined(_WIN32) || defined(_AIX)
     60     ASSERT_LE(0, uv_run(loop, UV_RUN_ONCE));
     61 #else
     62     int rc;
     63     do {
     64       struct pollfd p;
     65       p.fd = uv_backend_fd(loop);
     66       p.events = POLLIN;
     67       p.revents = 0;
     68       rc = poll(&p, 1, uv_backend_timeout(loop));
     69     } while (rc == -1 && errno == EINTR);
     70     ASSERT_LE(0, uv_run(loop, UV_RUN_NOWAIT));
     71 #endif
     72   }
     73 
     74   ASSERT_OK(uv_thread_join(&thread));
     75   uv_barrier_destroy(&barrier);
     76 
     77   MAKE_VALGRIND_HAPPY(loop);
     78   return 0;
     79 }
     80