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 #include <stdio.h>
25 #include <stdlib.h>
26
27 static uv_tcp_t tcp;
28 static uv_connect_t connect_req;
29 static uv_shutdown_t shutdown_req;
30 static uv_buf_t qbuf;
31 static int got_q;
32 static int got_eof;
33 static int called_connect_cb;
34 static int called_shutdown_cb;
35 static int called_tcp_close_cb;
36
37
alloc_cb(uv_handle_t * handle,size_t size,uv_buf_t * buf)38 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
39 buf->base = malloc(size);
40 buf->len = size;
41 }
42
43
shutdown_cb(uv_shutdown_t * req,int status)44 static void shutdown_cb(uv_shutdown_t *req, int status) {
45 ASSERT_PTR_EQ(req, &shutdown_req);
46
47 ASSERT_EQ(1, called_connect_cb);
48 ASSERT_OK(called_tcp_close_cb);
49 }
50
51
read_cb(uv_stream_t * t,ssize_t nread,const uv_buf_t * buf)52 static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
53 ASSERT_PTR_EQ((uv_tcp_t*)t, &tcp);
54
55 if (nread == 0) {
56 free(buf->base);
57 return;
58 }
59
60 if (!got_q) {
61 ASSERT_EQ(4, nread);
62 ASSERT_OK(got_eof);
63 ASSERT_MEM_EQ(buf->base, "QQSS", 4);
64 free(buf->base);
65 got_q = 1;
66 puts("got QQSS");
67 /* Shutdown our end of the connection simultaneously */
68 uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb);
69 called_shutdown_cb++;
70 } else {
71 ASSERT_EQ(nread, UV_EOF);
72 if (buf->base) {
73 free(buf->base);
74 }
75 got_eof = 1;
76 puts("got EOF");
77 }
78 }
79
80
connect_cb(uv_connect_t * req,int status)81 static void connect_cb(uv_connect_t *req, int status) {
82 ASSERT_OK(status);
83 ASSERT_PTR_EQ(req, &connect_req);
84
85 /* Start reading from our connection so we can receive the EOF. */
86 ASSERT_OK(uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
87
88 /* Check error handling. */
89 ASSERT_EQ(UV_EALREADY, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
90 ASSERT_EQ(UV_EINVAL, uv_read_start(NULL, alloc_cb, read_cb));
91 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, NULL, read_cb));
92 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, alloc_cb, NULL));
93
94 /*
95 * Write the letter 'Q' and 'QSS` to gracefully kill the echo-server. This
96 * will not effect our connection.
97 */
98 ASSERT_EQ(qbuf.len, uv_try_write((uv_stream_t*) &tcp, &qbuf, 1));
99
100 called_connect_cb++;
101 ASSERT_OK(called_shutdown_cb);
102 }
103
104
105 /*
106 * This test has a client which connects to the echo_server and immediately
107 * issues a shutdown. We check that this does not cause libuv to hang.
108 */
TEST_IMPL(shutdown_simultaneous)109 TEST_IMPL(shutdown_simultaneous) {
110 struct sockaddr_in server_addr;
111 int r;
112
113 qbuf.base = "QQSS";
114 qbuf.len = 4;
115
116 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
117 r = uv_tcp_init(uv_default_loop(), &tcp);
118 ASSERT_OK(r);
119
120 r = uv_tcp_connect(&connect_req,
121 &tcp,
122 (const struct sockaddr*) &server_addr,
123 connect_cb);
124 ASSERT_OK(r);
125
126 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
127
128 ASSERT_EQ(1, called_connect_cb);
129 ASSERT_EQ(1, called_shutdown_cb);
130 ASSERT_EQ(1, got_eof);
131 ASSERT_EQ(1, got_q);
132
133 MAKE_VALGRIND_HAPPY(uv_default_loop());
134 return 0;
135 }
136
