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 #include <stdio.h>
25 #include <stdlib.h>
26
27 static uv_timer_t timer;
28 static uv_tcp_t tcp;
29 static uv_connect_t connect_req;
30 static uv_write_t write_req;
31 static uv_shutdown_t shutdown_req;
32 static uv_buf_t qbuf;
33 static int got_q;
34 static int got_eof;
35 static int called_connect_cb;
36 static int called_shutdown_cb;
37 static int called_tcp_close_cb;
38 static int called_timer_close_cb;
39 static int called_timer_cb;
40
41
alloc_cb(uv_handle_t * handle,size_t size,uv_buf_t * buf)42 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
43 buf->base = malloc(size);
44 buf->len = size;
45 }
46
47
read_cb(uv_stream_t * t,ssize_t nread,const uv_buf_t * buf)48 static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
49 ASSERT_PTR_EQ((uv_tcp_t*)t, &tcp);
50
51 if (nread == 0) {
52 free(buf->base);
53 return;
54 }
55
56 if (!got_q) {
57 ASSERT_EQ(1, nread);
58 ASSERT(!got_eof);
59 ASSERT_EQ(buf->base[0], 'Q');
60 free(buf->base);
61 got_q = 1;
62 puts("got Q");
63 } else {
64 ASSERT_EQ(nread, UV_EOF);
65 if (buf->base) {
66 free(buf->base);
67 }
68 got_eof = 1;
69 puts("got EOF");
70 }
71 }
72
73
shutdown_cb(uv_shutdown_t * req,int status)74 static void shutdown_cb(uv_shutdown_t *req, int status) {
75 ASSERT_PTR_EQ(req, &shutdown_req);
76
77 ASSERT_EQ(1, called_connect_cb);
78 ASSERT(!got_eof);
79 ASSERT_OK(called_tcp_close_cb);
80 ASSERT_OK(called_timer_close_cb);
81 ASSERT_OK(called_timer_cb);
82
83 called_shutdown_cb++;
84 }
85
86
connect_cb(uv_connect_t * req,int status)87 static void connect_cb(uv_connect_t *req, int status) {
88 ASSERT_OK(status);
89 ASSERT_PTR_EQ(req, &connect_req);
90
91 /* Start reading from our connection so we can receive the EOF. */
92 ASSERT_OK(uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
93
94 /* Check error handling. */
95 ASSERT_EQ(UV_EALREADY, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
96 ASSERT_EQ(UV_EINVAL, uv_read_start(NULL, alloc_cb, read_cb));
97 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, NULL, read_cb));
98 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, alloc_cb, NULL));
99
100 /*
101 * Write the letter 'Q' to gracefully kill the echo-server. This will not
102 * effect our connection.
103 */
104 uv_write(&write_req, (uv_stream_t*) &tcp, &qbuf, 1, NULL);
105
106 /* Shutdown our end of the connection. */
107 uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb);
108
109 called_connect_cb++;
110 ASSERT_OK(called_shutdown_cb);
111 }
112
113
tcp_close_cb(uv_handle_t * handle)114 static void tcp_close_cb(uv_handle_t* handle) {
115 ASSERT_PTR_EQ(handle, (uv_handle_t*) &tcp);
116
117 ASSERT_EQ(1, called_connect_cb);
118 ASSERT(got_q);
119 ASSERT(got_eof);
120 ASSERT_EQ(1, called_timer_cb);
121
122 called_tcp_close_cb++;
123 }
124
125
timer_close_cb(uv_handle_t * handle)126 static void timer_close_cb(uv_handle_t* handle) {
127 ASSERT_PTR_EQ(handle, (uv_handle_t*) &timer);
128 called_timer_close_cb++;
129 }
130
131
timer_cb(uv_timer_t * handle)132 static void timer_cb(uv_timer_t* handle) {
133 ASSERT_PTR_EQ(handle, &timer);
134 uv_close((uv_handle_t*) handle, timer_close_cb);
135
136 /*
137 * The most important assert of the test: we have not received
138 * tcp_close_cb yet.
139 */
140 ASSERT_OK(called_tcp_close_cb);
141 uv_close((uv_handle_t*) &tcp, tcp_close_cb);
142
143 called_timer_cb++;
144 }
145
146
147 /*
148 * This test has a client which connects to the echo_server and immediately
149 * issues a shutdown. The echo-server, in response, will also shutdown their
150 * connection. We check, with a timer, that libuv is not automatically
151 * calling uv_close when the client receives the EOF from echo-server.
152 */
TEST_IMPL(shutdown_eof)153 TEST_IMPL(shutdown_eof) {
154 struct sockaddr_in server_addr;
155 int r;
156
157 qbuf.base = "Q";
158 qbuf.len = 1;
159
160 r = uv_timer_init(uv_default_loop(), &timer);
161 ASSERT_OK(r);
162
163 uv_timer_start(&timer, timer_cb, 100, 0);
164
165 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
166 r = uv_tcp_init(uv_default_loop(), &tcp);
167 ASSERT(!r);
168
169 r = uv_tcp_connect(&connect_req,
170 &tcp,
171 (const struct sockaddr*) &server_addr,
172 connect_cb);
173 ASSERT(!r);
174
175 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
176
177 ASSERT_EQ(1, called_connect_cb);
178 ASSERT_EQ(1, called_shutdown_cb);
179 ASSERT(got_eof);
180 ASSERT(got_q);
181 ASSERT_EQ(1, called_tcp_close_cb);
182 ASSERT_EQ(1, called_timer_close_cb);
183 ASSERT_EQ(1, called_timer_cb);
184
185 MAKE_VALGRIND_HAPPY(uv_default_loop());
186 return 0;
187 }
188
189
