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
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28
29 #define MAX_BYTES 1024 * 1024
30
31 static uv_tcp_t server;
32 static uv_tcp_t client;
33 static uv_tcp_t incoming;
34 static int connect_cb_called;
35 static int close_cb_called;
36 static int connection_cb_called;
37 static int bytes_read;
38 static int bytes_written;
39
40
close_cb(uv_handle_t * handle)41 static void close_cb(uv_handle_t* handle) {
42 close_cb_called++;
43 }
44
45
connect_cb(uv_connect_t * req,int status)46 static void connect_cb(uv_connect_t* req, int status) {
47 int r;
48 uv_buf_t buf;
49 ASSERT_OK(status);
50 connect_cb_called++;
51
52 do {
53 buf = uv_buf_init("PING", 4);
54 r = uv_try_write((uv_stream_t*) &client, &buf, 1);
55 ASSERT(r > 0 || r == UV_EAGAIN);
56 if (r > 0) {
57 bytes_written += r;
58 break;
59 }
60 } while (1);
61
62 do {
63 buf = uv_buf_init("", 0);
64 r = uv_try_write((uv_stream_t*) &client, &buf, 1);
65 } while (r != 0);
66 uv_close((uv_handle_t*) &client, close_cb);
67 }
68
69
alloc_cb(uv_handle_t * handle,size_t size,uv_buf_t * buf)70 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
71 static char base[1024];
72
73 buf->base = base;
74 buf->len = sizeof(base);
75 }
76
77
read_cb(uv_stream_t * tcp,ssize_t nread,const uv_buf_t * buf)78 static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
79 if (nread < 0) {
80 uv_close((uv_handle_t*) tcp, close_cb);
81 uv_close((uv_handle_t*) &server, close_cb);
82 return;
83 }
84
85 bytes_read += nread;
86 }
87
88
connection_cb(uv_stream_t * tcp,int status)89 static void connection_cb(uv_stream_t* tcp, int status) {
90 ASSERT_OK(status);
91
92 ASSERT_OK(uv_tcp_init(tcp->loop, &incoming));
93 ASSERT_OK(uv_accept(tcp, (uv_stream_t*) &incoming));
94
95 connection_cb_called++;
96 ASSERT_OK(uv_read_start((uv_stream_t*) &incoming, alloc_cb, read_cb));
97 }
98
99
start_server(void)100 static void start_server(void) {
101 struct sockaddr_in addr;
102
103 ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
104
105 ASSERT_OK(uv_tcp_init(uv_default_loop(), &server));
106 ASSERT_OK(uv_tcp_bind(&server, (struct sockaddr*) &addr, 0));
107 ASSERT_OK(uv_listen((uv_stream_t*) &server, 128, connection_cb));
108 }
109
110
TEST_IMPL(tcp_try_write)111 TEST_IMPL(tcp_try_write) {
112 uv_connect_t connect_req;
113 struct sockaddr_in addr;
114
115 start_server();
116
117 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
118
119 ASSERT_OK(uv_tcp_init(uv_default_loop(), &client));
120 ASSERT_OK(uv_tcp_connect(&connect_req,
121 &client,
122 (struct sockaddr*) &addr,
123 connect_cb));
124
125 ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
126
127 ASSERT_EQ(1, connect_cb_called);
128 ASSERT_EQ(3, close_cb_called);
129 ASSERT_EQ(1, connection_cb_called);
130 ASSERT_EQ(bytes_read, bytes_written);
131 ASSERT_GT(bytes_written, 0);
132
133 MAKE_VALGRIND_HAPPY(uv_default_loop());
134 return 0;
135 }
136
