src/server/daemon/httplistener.c

Sun, 06 May 2012 10:09:27 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 06 May 2012 10:09:27 +0200
changeset 28
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parent 25
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child 29
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added logging

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2011 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "../public/nsapi.h"
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30
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31 #include <stdio.h>
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32 #include <stdlib.h>
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33 #include <fcntl.h>
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34 #include <sys/shm.h>
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35 #include <sys/types.h>
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36 #include <sys/ipc.h>
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37 #include <sys/socket.h>
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38 #include <sys/file.h>
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39 #include <netinet/in.h>
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40 #include <netdb.h>
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41 #include <stdio.h>
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42 #include <stdlib.h>
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43 #include <fcntl.h>
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44 #include <unistd.h>
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45 #include <strings.h>
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46 #include <stdbool.h>
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47 #include <pthread.h>
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48
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49 #include "../ucx/map.h"
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50 #include "httplistener.h"
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51
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52 #include "session.h"
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53 #include "configmanager.h"
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54
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55 UcxMap *listener_map = NULL;
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56
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57 int start_all_listener() {
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58 ServerConfiguration *conf = cfgmgr_get_server_config();
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59 UcxList *ls = conf->listeners;
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60 while(ls) {
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61 HttpListener *listener = ls->data;
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62 http_listener_start(listener);
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63 ls = ls->next;
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64 }
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65
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66 return 0;
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67 }
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68
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69
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70 HttpListener* http_listener_new(ListenerConfig *conf) {
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71 if(listener_map == NULL) {
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72 listener_map = ucx_map_new(16);
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73 }
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74
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75 HttpListener *fl = ucx_map_sstr_get(listener_map, conf->name);
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76 if(fl != NULL) {
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77 return fl;
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78 }
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79
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80 HttpListener *listener = malloc(sizeof(HttpListener));
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81 listener->name = conf->name;
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82 listener->session_handler = create_basic_session_handler();
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83 listener->nacceptors = conf->nacceptors;
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84 ucx_map_sstr_put(listener_map, listener->name, listener);
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85
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86 struct sockaddr_in servaddr; /* server address */
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87
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88 /* init address structure */
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89 memset(&servaddr, 0, sizeof(servaddr));
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90 servaddr.sin_family = AF_INET;
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91 servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
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92 servaddr.sin_port = htons(conf->port);
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93
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94 /* create socket */
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95 if((listener->server_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
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96 perror("Error: http_listener_new: socket");
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97 return NULL;
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98 }
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99
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100 int o = 1;
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101 setsockopt(
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102 listener->server_socket,
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103 SOL_SOCKET, SO_REUSEADDR,
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104 &o,
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105 sizeof(int));
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106
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107 /* bind server socket to address */
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108 if(bind(listener->server_socket, (struct sockaddr*)&servaddr, sizeof(servaddr))){
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109 perror("Error: http_listener_new: bind");
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110 printf("port: %d\n", conf->port);
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111 return NULL;
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112 }
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113
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114 /* create acceptors */
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115 listener->acceptors = calloc(listener->nacceptors, sizeof(void*));
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116 for (int i=0;i<listener->nacceptors;i++) {
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117 listener->acceptors[i] = acceptor_new(listener);
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118 }
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119
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120 return listener;
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121 }
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122
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123 int http_listener_start(HttpListener *listener) {
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124 printf("INFO: start listener\n");
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125
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126 if (listen(listener->server_socket, 256) == -1) {
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127 perror("Error: http_listener_start: listen");
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128 return -1;
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129 }
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130
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131 /* start acceptor threads */
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132 for (int i=0;i<listener->nacceptors;i++) {
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133 acceptor_start(listener->acceptors[i]);
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134 }
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135
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136 return 0;
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137 }
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138
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140
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141 Acceptor* acceptor_new(HttpListener *listener) {
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142 Acceptor *acceptor = malloc(sizeof(Acceptor));
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143 acceptor->listener = listener;
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144 return acceptor;
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145 }
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146
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147 void acceptor_start(Acceptor *a) {
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148 if(pthread_create(
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149 &a->tid,
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150 NULL,
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151 (void*(*)(void*))acceptor_thread,
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152 a) != 0)
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153 {
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154 perror("Error: acceptor_start: pthread_create");
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155 }
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156 }
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157
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158 void* acceptor_thread(Acceptor *acceptor) {
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159 HttpListener *listener = acceptor->listener;
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160
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161 for (;;) {
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162 /* accept connections */
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163 struct sockaddr_in ca;
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164 socklen_t length = sizeof(ca);
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165 int clientfd;
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166
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167 /* accept a connection */
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168 clientfd = accept(
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169 listener->server_socket,
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170 (struct sockaddr*)&ca,
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171 &length);
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172 if (clientfd == -1) {
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173 perror("Error: acceptor_thread: accept");
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174 continue;
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175 }
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176
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177 /* create Connection object */
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178 Connection *conn = malloc(sizeof(Connection));
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179 conn->address = ca;
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180 conn->fd = clientfd;
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181 conn->listener = listener;
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182
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183 /* enqueue the connection */
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184 listener->session_handler->enqueue_connection(
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185 listener->session_handler,
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186 conn);
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187
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188 /* ready for new connection */
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189 if(0) {
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190 break;
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191 }
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192 }
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193
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194 return NULL;
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195 }

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