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
31static uv_tcp_t server;
32static uv_tcp_t client;
33static uv_tcp_t incoming;
34static int connect_cb_called;
35static int close_cb_called;
36static int connection_cb_called;
37static int bytes_read;
38static int bytes_written;
39
40
41static void close_cb(uv_handle_t* handle) {
42  close_cb_called++;
43}
44
45
46static void connect_cb(uv_connect_t* req, int status) {
47  int r;
48  uv_buf_t buf;
49  ASSERT(status == 0);
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
70static 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
78static 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
89static void connection_cb(uv_stream_t* tcp, int status) {
90  ASSERT(status == 0);
91
92  ASSERT(0 == uv_tcp_init(tcp->loop, &incoming));
93  ASSERT(0 == uv_accept(tcp, (uv_stream_t*) &incoming));
94
95  connection_cb_called++;
96  ASSERT(0 == uv_read_start((uv_stream_t*) &incoming, alloc_cb, read_cb));
97}
98
99
100static void start_server(void) {
101  struct sockaddr_in addr;
102
103  ASSERT(0 == uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
104
105  ASSERT(0 == uv_tcp_init(uv_default_loop(), &server));
106  ASSERT(0 == uv_tcp_bind(&server, (struct sockaddr*) &addr, 0));
107  ASSERT(0 == uv_listen((uv_stream_t*) &server, 128, connection_cb));
108}
109
110
111TEST_IMPL(tcp_try_write) {
112  uv_connect_t connect_req;
113  struct sockaddr_in addr;
114
115  start_server();
116
117  ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
118
119  ASSERT(0 == uv_tcp_init(uv_default_loop(), &client));
120  ASSERT(0 == uv_tcp_connect(&connect_req,
121                             &client,
122                             (struct sockaddr*) &addr,
123                             connect_cb));
124
125  ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
126
127  ASSERT(connect_cb_called == 1);
128  ASSERT(close_cb_called == 3);
129  ASSERT(connection_cb_called == 1);
130  ASSERT(bytes_read == bytes_written);
131  ASSERT(bytes_written > 0);
132
133  MAKE_VALGRIND_HAPPY();
134  return 0;
135}
136