1 /* Copyright libuv project and 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 static uv_tcp_t client;
26 static uv_tcp_t connection;
27 static uv_connect_t connect_req;
28 static uv_timer_t timer;
29 
30 static int read_cb_called;
31 static int on_close_called;
32 
33 static void on_connection(uv_stream_t* server, int status);
34 
35 static void on_client_connect(uv_connect_t* req, int status);
36 static void on_client_alloc(uv_handle_t* handle,
37                             size_t suggested_size,
38                             uv_buf_t* buf);
39 static void on_client_read(uv_stream_t* stream,
40                            ssize_t nread,
41                            const uv_buf_t* buf);
42 static void on_client_timeout(uv_timer_t* handle);
43 
44 static void on_close(uv_handle_t* handle);
45 
46 
on_client_connect(uv_connect_t * conn_req,int status)47 static void on_client_connect(uv_connect_t* conn_req, int status) {
48   int r;
49 
50   r = uv_read_start((uv_stream_t*) &client, on_client_alloc, on_client_read);
51   ASSERT_OK(r);
52 
53   r = uv_timer_start(&timer, on_client_timeout, 1000, 0);
54   ASSERT_OK(r);
55 }
56 
57 
on_client_alloc(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)58 static void on_client_alloc(uv_handle_t* handle,
59                             size_t suggested_size,
60                             uv_buf_t* buf) {
61   static char slab[8];
62   buf->base = slab;
63   buf->len = sizeof(slab);
64 }
65 
66 
on_client_read(uv_stream_t * stream,ssize_t nread,const uv_buf_t * buf)67 static void on_client_read(uv_stream_t* stream, ssize_t nread,
68                            const uv_buf_t* buf) {
69   ASSERT_LT(nread, 0);
70   read_cb_called++;
71 }
72 
73 
on_client_timeout(uv_timer_t * handle)74 static void on_client_timeout(uv_timer_t* handle) {
75   ASSERT_PTR_EQ(handle, &timer);
76   ASSERT_OK(read_cb_called);
77   uv_read_stop((uv_stream_t*) &client);
78   uv_close((uv_handle_t*) &client, on_close);
79   uv_close((uv_handle_t*) &timer, on_close);
80 }
81 
82 
on_connection_alloc(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)83 static void on_connection_alloc(uv_handle_t* handle,
84                      size_t suggested_size,
85                      uv_buf_t* buf) {
86   static char slab[8];
87   buf->base = slab;
88   buf->len = sizeof(slab);
89 }
90 
91 
on_connection_read(uv_stream_t * stream,ssize_t nread,const uv_buf_t * buf)92 static void on_connection_read(uv_stream_t* stream,
93                                ssize_t nread,
94                                const uv_buf_t* buf) {
95   ASSERT_EQ(nread, UV_EOF);
96   read_cb_called++;
97   uv_close((uv_handle_t*) stream, on_close);
98 }
99 
100 
on_connection(uv_stream_t * server,int status)101 static void on_connection(uv_stream_t* server, int status) {
102   int r;
103 
104   ASSERT_OK(status);
105   ASSERT_OK(uv_accept(server, (uv_stream_t*) &connection));
106 
107   r = uv_read_start((uv_stream_t*) &connection,
108                     on_connection_alloc,
109                     on_connection_read);
110   ASSERT_OK(r);
111 }
112 
113 
on_close(uv_handle_t * handle)114 static void on_close(uv_handle_t* handle) {
115   ASSERT_NE(handle == (uv_handle_t*) &client ||
116             handle == (uv_handle_t*) &connection ||
117             handle == (uv_handle_t*) &timer, 0);
118   on_close_called++;
119 }
120 
121 
start_server(uv_loop_t * loop,uv_tcp_t * handle)122 static void start_server(uv_loop_t* loop, uv_tcp_t* handle) {
123   struct sockaddr_in addr;
124   int r;
125 
126   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
127 
128   r = uv_tcp_init(loop, handle);
129   ASSERT_OK(r);
130 
131   r = uv_tcp_bind(handle, (const struct sockaddr*) &addr, 0);
132   ASSERT_OK(r);
133 
134   r = uv_listen((uv_stream_t*) handle, 128, on_connection);
135   ASSERT_OK(r);
136 
137   uv_unref((uv_handle_t*) handle);
138 }
139 
140 
141 /* Check that pending write requests have their callbacks
142  * invoked when the handle is closed.
143  */
TEST_IMPL(tcp_close_after_read_timeout)144 TEST_IMPL(tcp_close_after_read_timeout) {
145   struct sockaddr_in addr;
146   uv_tcp_t tcp_server;
147   uv_loop_t* loop;
148   int r;
149 
150   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
151 
152   loop = uv_default_loop();
153 
154   /* We can't use the echo server, it doesn't handle ECONNRESET. */
155   start_server(loop, &tcp_server);
156 
157   r = uv_tcp_init(loop, &client);
158   ASSERT_OK(r);
159 
160   r = uv_tcp_connect(&connect_req,
161                      &client,
162                      (const struct sockaddr*) &addr,
163                      on_client_connect);
164   ASSERT_OK(r);
165 
166   r = uv_tcp_init(loop, &connection);
167   ASSERT_OK(r);
168 
169   r = uv_timer_init(loop, &timer);
170   ASSERT_OK(r);
171 
172   ASSERT_OK(read_cb_called);
173   ASSERT_OK(on_close_called);
174 
175   r = uv_run(loop, UV_RUN_DEFAULT);
176   ASSERT_OK(r);
177 
178   ASSERT_EQ(1, read_cb_called);
179   ASSERT_EQ(3, on_close_called);
180 
181   MAKE_VALGRIND_HAPPY(loop);
182   return 0;
183 }
184