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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 
     25 #include <stdio.h>
     26 #include <stdlib.h>
     27 
     28 static char magic_cookie[] = "magic cookie";
     29 static int seen_timer_handle;
     30 static uv_timer_t timer;
     31 
     32 
     33 static void walk_cb(uv_handle_t* handle, void* arg) {
     34   ASSERT_PTR_EQ(arg, (void*)magic_cookie);
     35 
     36   if (handle == (uv_handle_t*)&timer) {
     37     seen_timer_handle++;
     38   } else {
     39     ASSERT(0 && "unexpected handle");
     40   }
     41 }
     42 
     43 
     44 static void timer_cb(uv_timer_t* handle) {
     45   ASSERT_PTR_EQ(handle, &timer);
     46 
     47   uv_walk(handle->loop, walk_cb, magic_cookie);
     48   uv_close((uv_handle_t*)handle, NULL);
     49 }
     50 
     51 
     52 TEST_IMPL(walk_handles) {
     53   uv_loop_t* loop;
     54   int r;
     55 
     56   loop = uv_default_loop();
     57 
     58   r = uv_timer_init(loop, &timer);
     59   ASSERT_OK(r);
     60 
     61   r = uv_timer_start(&timer, timer_cb, 1, 0);
     62   ASSERT_OK(r);
     63 
     64   /* Start event loop, expect to see the timer handle in walk_cb. */
     65   ASSERT_OK(seen_timer_handle);
     66   r = uv_run(loop, UV_RUN_DEFAULT);
     67   ASSERT_OK(r);
     68   ASSERT_EQ(1, seen_timer_handle);
     69 
     70   /* Loop is finished, walk_cb should not see our timer handle. */
     71   seen_timer_handle = 0;
     72   uv_walk(loop, walk_cb, magic_cookie);
     73   ASSERT_OK(seen_timer_handle);
     74 
     75   MAKE_VALGRIND_HAPPY(loop);
     76   return 0;
     77 }
     78