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      1 /* Copyright Joyent, Inc. and other Node 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 <string.h>
     25 
     26 static uv_async_t async_handle;
     27 static uv_check_t check_handle;
     28 static int check_cb_called;
     29 static uv_thread_t thread;
     30 
     31 
     32 static void thread_cb(void* dummy) {
     33   (void) &dummy;
     34   uv_async_send(&async_handle);
     35 }
     36 
     37 
     38 static void check_cb(uv_check_t* handle) {
     39   ASSERT_OK(check_cb_called);
     40   uv_close((uv_handle_t*) &async_handle, NULL);
     41   uv_close((uv_handle_t*) &check_handle, NULL);
     42   check_cb_called++;
     43 }
     44 
     45 
     46 TEST_IMPL(async_null_cb) {
     47   /*
     48    * Fill async_handle with garbage values.
     49    * uv_async_init() should properly initialize struct fields regardless of
     50    * initial values.
     51    * This is added to verify paddings between fields do not affect behavior.
     52    */
     53   memset(&async_handle, 0xff, sizeof(async_handle));
     54 
     55   ASSERT_OK(uv_async_init(uv_default_loop(), &async_handle, NULL));
     56   ASSERT_OK(uv_check_init(uv_default_loop(), &check_handle));
     57   ASSERT_OK(uv_check_start(&check_handle, check_cb));
     58   ASSERT_OK(uv_thread_create(&thread, thread_cb, NULL));
     59   ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
     60   ASSERT_OK(uv_thread_join(&thread));
     61   ASSERT_EQ(1, check_cb_called);
     62   MAKE_VALGRIND_HAPPY(uv_default_loop());
     63   return 0;
     64 }
     65