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