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1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "uv.h"
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23 #include "task.h"
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24
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27 #include <string.h>
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28
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29 static void connection_cb(uv_stream_t* server, int status);
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30 static void connect_cb(uv_connect_t* req, int status);
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31 static void write_cb(uv_write_t* req, int status);
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32 static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
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33 static void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
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34
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35 static uv_tcp_t tcp_server;
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36 static uv_tcp_t tcp_client;
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37 static uv_tcp_t tcp_peer; /* client socket as accept()-ed by server */
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38 static uv_connect_t connect_req;
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39 static uv_write_t write_req;
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40
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41 static int write_cb_called;
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42 static int read_cb_called;
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43
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44 static void connection_cb(uv_stream_t* server, int status) {
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45 int r;
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46 uv_buf_t buf;
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47
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48 ASSERT_PTR_EQ(server, (uv_stream_t*)&tcp_server);
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49 ASSERT_OK(status);
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50
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51 r = uv_tcp_init(server->loop, &tcp_peer);
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52 ASSERT_OK(r);
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53
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54 r = uv_accept(server, (uv_stream_t*)&tcp_peer);
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55 ASSERT_OK(r);
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56
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57 r = uv_read_start((uv_stream_t*)&tcp_peer, alloc_cb, read_cb);
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58 ASSERT_OK(r);
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59
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60 buf.base = "hello\n";
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61 buf.len = 6;
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62
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63 r = uv_write(&write_req, (uv_stream_t*)&tcp_peer, &buf, 1, write_cb);
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64 ASSERT_OK(r);
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65 }
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66
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67
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68 static void alloc_cb(uv_handle_t* handle,
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69 size_t suggested_size,
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70 uv_buf_t* buf) {
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71 static char slab[1024];
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72 buf->base = slab;
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73 buf->len = sizeof(slab);
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74 }
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75
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76
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77 static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
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78 if (nread < 0) {
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79 fprintf(stderr, "read_cb error: %s\n", uv_err_name(nread));
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80 ASSERT(nread == UV_ECONNRESET || nread == UV_EOF);
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81
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82 uv_close((uv_handle_t*)&tcp_server, NULL);
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83 uv_close((uv_handle_t*)&tcp_peer, NULL);
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84 }
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85
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86 read_cb_called++;
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87 }
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88
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89
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90 static void connect_cb(uv_connect_t* req, int status) {
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91 ASSERT_PTR_EQ(req, &connect_req);
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92 ASSERT_OK(status);
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93
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94 /* Close the client. */
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95 uv_close((uv_handle_t*)&tcp_client, NULL);
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96 }
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97
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98
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99 static void write_cb(uv_write_t* req, int status) {
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100 ASSERT_OK(status);
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101 write_cb_called++;
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102 }
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103
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104
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105 TEST_IMPL(tcp_write_to_half_open_connection) {
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106 struct sockaddr_in addr;
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107 uv_loop_t* loop;
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108 int r;
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109
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110 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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111
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112 loop = uv_default_loop();
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113 ASSERT_NOT_NULL(loop);
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114
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115 r = uv_tcp_init(loop, &tcp_server);
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116 ASSERT_OK(r);
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117
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118 r = uv_tcp_bind(&tcp_server, (const struct sockaddr*) &addr, 0);
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119 ASSERT_OK(r);
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120
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121 r = uv_listen((uv_stream_t*)&tcp_server, 1, connection_cb);
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122 ASSERT_OK(r);
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123
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124 r = uv_tcp_init(loop, &tcp_client);
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125 ASSERT_OK(r);
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126
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127 r = uv_tcp_connect(&connect_req,
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128 &tcp_client,
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129 (const struct sockaddr*) &addr,
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130 connect_cb);
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131 ASSERT_OK(r);
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132
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133 r = uv_run(loop, UV_RUN_DEFAULT);
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134 ASSERT_OK(r);
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135
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136 ASSERT_GT(write_cb_called, 0);
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137 ASSERT_GT(read_cb_called, 0);
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138
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139 MAKE_VALGRIND_HAPPY(loop);
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140 return 0;
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141 }
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