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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 #include <stdio.h>
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25 #include <stdlib.h>
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26
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27 static uv_timer_t timer;
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28 static uv_tcp_t tcp;
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29 static uv_connect_t connect_req;
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30 static uv_write_t write_req;
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31 static uv_shutdown_t shutdown_req;
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32 static uv_buf_t qbuf;
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33 static int got_q;
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34 static int got_eof;
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35 static int called_connect_cb;
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36 static int called_shutdown_cb;
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37 static int called_tcp_close_cb;
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38 static int called_timer_close_cb;
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39 static int called_timer_cb;
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40
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41
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42 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
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43 buf->base = malloc(size);
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44 buf->len = size;
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45 }
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46
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47
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48 static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
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49 ASSERT_PTR_EQ((uv_tcp_t*)t, &tcp);
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50
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51 if (nread == 0) {
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52 free(buf->base);
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53 return;
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54 }
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55
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56 if (!got_q) {
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57 ASSERT_EQ(1, nread);
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58 ASSERT(!got_eof);
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59 ASSERT_EQ(buf->base[0], 'Q');
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60 free(buf->base);
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61 got_q = 1;
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62 puts("got Q");
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63 } else {
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64 ASSERT_EQ(nread, UV_EOF);
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65 if (buf->base) {
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66 free(buf->base);
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67 }
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68 got_eof = 1;
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69 puts("got EOF");
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70 }
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71 }
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72
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73
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74 static void shutdown_cb(uv_shutdown_t *req, int status) {
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75 ASSERT_PTR_EQ(req, &shutdown_req);
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76
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77 ASSERT_EQ(1, called_connect_cb);
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78 ASSERT(!got_eof);
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79 ASSERT_OK(called_tcp_close_cb);
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80 ASSERT_OK(called_timer_close_cb);
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81 ASSERT_OK(called_timer_cb);
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82
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83 called_shutdown_cb++;
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84 }
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85
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86
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87 static void connect_cb(uv_connect_t *req, int status) {
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88 ASSERT_OK(status);
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89 ASSERT_PTR_EQ(req, &connect_req);
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90
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91 /* Start reading from our connection so we can receive the EOF. */
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92 ASSERT_OK(uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
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93
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94 /* Check error handling. */
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95 ASSERT_EQ(UV_EALREADY, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
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96 ASSERT_EQ(UV_EINVAL, uv_read_start(NULL, alloc_cb, read_cb));
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97 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, NULL, read_cb));
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98 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, alloc_cb, NULL));
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99
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100 /*
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101 * Write the letter 'Q' to gracefully kill the echo-server. This will not
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102 * effect our connection.
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103 */
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104 uv_write(&write_req, (uv_stream_t*) &tcp, &qbuf, 1, NULL);
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105
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106 /* Shutdown our end of the connection. */
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107 uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb);
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108
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109 called_connect_cb++;
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110 ASSERT_OK(called_shutdown_cb);
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111 }
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112
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113
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114 static void tcp_close_cb(uv_handle_t* handle) {
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115 ASSERT_PTR_EQ(handle, (uv_handle_t*) &tcp);
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116
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117 ASSERT_EQ(1, called_connect_cb);
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118 ASSERT(got_q);
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119 ASSERT(got_eof);
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120 ASSERT_EQ(1, called_timer_cb);
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121
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122 called_tcp_close_cb++;
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123 }
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124
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125
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126 static void timer_close_cb(uv_handle_t* handle) {
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127 ASSERT_PTR_EQ(handle, (uv_handle_t*) &timer);
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128 called_timer_close_cb++;
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129 }
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130
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131
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132 static void timer_cb(uv_timer_t* handle) {
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133 ASSERT_PTR_EQ(handle, &timer);
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134 uv_close((uv_handle_t*) handle, timer_close_cb);
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135
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136 /*
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137 * The most important assert of the test: we have not received
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138 * tcp_close_cb yet.
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139 */
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140 ASSERT_OK(called_tcp_close_cb);
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141 uv_close((uv_handle_t*) &tcp, tcp_close_cb);
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142
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143 called_timer_cb++;
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144 }
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145
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146
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147 /*
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148 * This test has a client which connects to the echo_server and immediately
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149 * issues a shutdown. The echo-server, in response, will also shutdown their
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150 * connection. We check, with a timer, that libuv is not automatically
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151 * calling uv_close when the client receives the EOF from echo-server.
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152 */
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153 TEST_IMPL(shutdown_eof) {
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154 struct sockaddr_in server_addr;
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155 int r;
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156
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157 qbuf.base = "Q";
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158 qbuf.len = 1;
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159
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160 r = uv_timer_init(uv_default_loop(), &timer);
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161 ASSERT_OK(r);
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162
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163 uv_timer_start(&timer, timer_cb, 100, 0);
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164
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165 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
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166 r = uv_tcp_init(uv_default_loop(), &tcp);
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167 ASSERT(!r);
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168
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169 r = uv_tcp_connect(&connect_req,
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170 &tcp,
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171 (const struct sockaddr*) &server_addr,
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172 connect_cb);
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173 ASSERT(!r);
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174
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175 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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176
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177 ASSERT_EQ(1, called_connect_cb);
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178 ASSERT_EQ(1, called_shutdown_cb);
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179 ASSERT(got_eof);
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180 ASSERT(got_q);
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181 ASSERT_EQ(1, called_tcp_close_cb);
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182 ASSERT_EQ(1, called_timer_close_cb);
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183 ASSERT_EQ(1, called_timer_cb);
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184
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185 MAKE_VALGRIND_HAPPY(uv_default_loop());
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186 return 0;
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187 }
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188
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