xref: /libuv/test/test-connection-fail.c (revision 011a1ac1)
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20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 
25 #include <stdlib.h>
26 #include <stdio.h>
27 
28 
29 static uv_tcp_t tcp;
30 static uv_connect_t req;
31 static int connect_cb_calls;
32 static int close_cb_calls;
33 
34 static uv_timer_t timer;
35 static int timer_close_cb_calls;
36 static int timer_cb_calls;
37 
38 
on_close(uv_handle_t * handle)39 static void on_close(uv_handle_t* handle) {
40   close_cb_calls++;
41 }
42 
43 
timer_close_cb(uv_handle_t * handle)44 static void timer_close_cb(uv_handle_t* handle) {
45   timer_close_cb_calls++;
46 }
47 
48 
timer_cb(uv_timer_t * handle)49 static void timer_cb(uv_timer_t* handle) {
50   timer_cb_calls++;
51 
52   /*
53    * These are the important asserts. The connection callback has been made,
54    * but libuv hasn't automatically closed the socket. The user must
55    * uv_close the handle manually.
56    */
57   ASSERT_OK(close_cb_calls);
58   ASSERT_EQ(1, connect_cb_calls);
59 
60   /* Close the tcp handle. */
61   uv_close((uv_handle_t*)&tcp, on_close);
62 
63   /* Close the timer. */
64   uv_close((uv_handle_t*)handle, timer_close_cb);
65 }
66 
67 
on_connect_with_close(uv_connect_t * req,int status)68 static void on_connect_with_close(uv_connect_t *req, int status) {
69   ASSERT_PTR_EQ((uv_stream_t*) &tcp, req->handle);
70   ASSERT_EQ(status, UV_ECONNREFUSED);
71   connect_cb_calls++;
72 
73   ASSERT_OK(close_cb_calls);
74   uv_close((uv_handle_t*)req->handle, on_close);
75 }
76 
77 
on_connect_without_close(uv_connect_t * req,int status)78 static void on_connect_without_close(uv_connect_t *req, int status) {
79   ASSERT_EQ(status, UV_ECONNREFUSED);
80   connect_cb_calls++;
81 
82   uv_timer_start(&timer, timer_cb, 100, 0);
83 
84   ASSERT_OK(close_cb_calls);
85 }
86 
87 
connection_fail(uv_connect_cb connect_cb)88 static void connection_fail(uv_connect_cb connect_cb) {
89   struct sockaddr_in client_addr, server_addr;
90   int r;
91 
92   ASSERT_OK(uv_ip4_addr("0.0.0.0", 0, &client_addr));
93 
94   /* There should be no servers listening on this port. */
95   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
96 
97   /* Try to connect to the server and do NUM_PINGS ping-pongs. */
98   r = uv_tcp_init(uv_default_loop(), &tcp);
99   ASSERT(!r);
100 
101   /* We are never doing multiple reads/connects at a time anyway. so these
102    * handles can be pre-initialized. */
103   ASSERT_OK(uv_tcp_bind(&tcp, (const struct sockaddr*) &client_addr, 0));
104 
105   r = uv_tcp_connect(&req,
106                      &tcp,
107                      (const struct sockaddr*) &server_addr,
108                      connect_cb);
109   ASSERT(!r);
110 
111   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
112 
113   ASSERT_EQ(1, connect_cb_calls);
114   ASSERT_EQ(1, close_cb_calls);
115 }
116 
117 
118 /*
119  * This test attempts to connect to a port where no server is running. We
120  * expect an error.
121  */
TEST_IMPL(connection_fail)122 TEST_IMPL(connection_fail) {
123 /* TODO(gengjiawen): Fix test on QEMU. */
124 #if defined(__QEMU__)
125   RETURN_SKIP("Test does not currently work in QEMU");
126 #endif
127 
128   connection_fail(on_connect_with_close);
129 
130   ASSERT_OK(timer_close_cb_calls);
131   ASSERT_OK(timer_cb_calls);
132 
133   MAKE_VALGRIND_HAPPY(uv_default_loop());
134   return 0;
135 }
136 
137 
138 /*
139  * This test is the same as the first except it check that the close
140  * callback of the tcp handle hasn't been made after the failed connection
141  * attempt.
142  */
TEST_IMPL(connection_fail_doesnt_auto_close)143 TEST_IMPL(connection_fail_doesnt_auto_close) {
144 /* TODO(gengjiawen): Fix test on QEMU. */
145 #if defined(__QEMU__)
146   RETURN_SKIP("Test does not currently work in QEMU");
147 #endif
148 
149   int r;
150 
151   r = uv_timer_init(uv_default_loop(), &timer);
152   ASSERT_OK(r);
153 
154   connection_fail(on_connect_without_close);
155 
156   ASSERT_EQ(1, timer_close_cb_calls);
157   ASSERT_EQ(1, timer_cb_calls);
158 
159   MAKE_VALGRIND_HAPPY(uv_default_loop());
160   return 0;
161 }
162