xref: /libuv/test/test-walk-handles.c (revision 011a1ac1)
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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 
walk_cb(uv_handle_t * handle,void * arg)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 
timer_cb(uv_timer_t * handle)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 
TEST_IMPL(walk_handles)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