xref: /libuv/test/test-async-null-cb.c (revision 011a1ac1)
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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 
thread_cb(void * dummy)32 static void thread_cb(void* dummy) {
33   (void) &dummy;
34   uv_async_send(&async_handle);
35 }
36 
37 
check_cb(uv_check_t * handle)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 
TEST_IMPL(async_null_cb)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