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