1 | /*
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2 | * synergy -- mouse and keyboard sharing utility
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3 | * Copyright (C) 2002 Chris Schoeneman
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4 | *
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5 | * This package is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * found in the file COPYING that should have accompanied this file.
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8 | *
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9 | * This package is distributed in the hope that it will be useful,
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 | * GNU General Public License for more details.
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13 | */
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14 |
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15 | #include "CClient.h"
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16 | #include "CScreen.h"
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17 | #include "ProtocolTypes.h"
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18 | #include "Version.h"
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19 | #include "XScreen.h"
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20 | #include "CNetworkAddress.h"
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21 | #include "CSocketMultiplexer.h"
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22 | #include "CTCPSocketFactory.h"
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23 | #include "XSocket.h"
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24 | #include "CThread.h"
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25 | #include "CEventQueue.h"
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26 | #include "CFunctionEventJob.h"
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27 | #include "CFunctionJob.h"
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28 | #include "CLog.h"
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29 | #include "CString.h"
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30 | #include "CStringUtil.h"
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31 | #include "LogOutputters.h"
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32 | #include "CArch.h"
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33 | #include "XArch.h"
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34 | #include <cstring>
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35 |
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36 | #define DAEMON_RUNNING(running_)
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37 | #if WINAPI_MSWINDOWS
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38 | #include "CArchMiscWindows.h"
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39 | #include "CMSWindowsScreen.h"
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40 | #include "CMSWindowsUtil.h"
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41 | #include "CMSWindowsClientTaskBarReceiver.h"
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42 | #include "resource.h"
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43 | #undef DAEMON_RUNNING
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44 | #define DAEMON_RUNNING(running_) CArchMiscWindows::daemonRunning(running_)
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45 | #elif WINAPI_XWINDOWS
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46 | #include "CXWindowsScreen.h"
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47 | #include "CXWindowsClientTaskBarReceiver.h"
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48 | #elif WINAPI_CARBON
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49 | #include "COSXScreen.h"
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50 | #include "COSXClientTaskBarReceiver.h"
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51 | #elif WINAPI_PM
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52 | #include "CPMScreen.h"
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53 | #include "CPMClientTaskBarReceiver.h"
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54 | #endif
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55 |
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56 | // platform dependent name of a daemon
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57 | #if SYSAPI_WIN32
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58 | #define DAEMON_NAME "Synergy Client"
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59 | #elif SYSAPI_UNIX
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60 | #define DAEMON_NAME "synergyc"
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61 | #endif
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62 |
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63 | typedef int (*StartupFunc)(int, char**);
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64 | static bool startClient();
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65 | static void parse(int argc, const char* const* argv);
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66 |
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67 | //
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68 | // program arguments
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69 | //
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70 |
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71 | #define ARG CArgs::s_instance
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72 |
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73 | class CArgs {
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74 | public:
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75 | CArgs() :
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76 | m_pname(NULL),
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77 | m_backend(false),
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78 | m_restartable(true),
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79 | m_daemon(true),
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80 | m_logFilter(NULL),
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81 | m_display(NULL),
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82 | m_serverAddress(NULL)
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83 | { s_instance = this; }
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84 | ~CArgs() { s_instance = NULL; }
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85 |
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86 | public:
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87 | static CArgs* s_instance;
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88 | const char* m_pname;
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89 | bool m_backend;
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90 | bool m_restartable;
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91 | bool m_daemon;
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92 | const char* m_logFilter;
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93 | const char* m_display;
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94 | CString m_name;
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95 | CNetworkAddress* m_serverAddress;
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96 | };
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97 |
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98 | CArgs* CArgs::s_instance = NULL;
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99 |
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100 |
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101 | //
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102 | // platform dependent factories
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103 | //
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104 |
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105 | static
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106 | CScreen*
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107 | createScreen()
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108 | {
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109 | #if WINAPI_MSWINDOWS
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110 | return new CScreen(new CMSWindowsScreen(false));
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111 | #elif WINAPI_XWINDOWS
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112 | return new CScreen(new CXWindowsScreen(ARG->m_display, false));
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113 | #elif WINAPI_CARBON
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114 | return new CScreen(new COSXScreen(false));
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115 | #elif WINAPI_PM
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116 | return new CScreen(new CPMScreen(false));
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117 | #endif
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118 | }
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119 |
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120 | static
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121 | CClientTaskBarReceiver*
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122 | createTaskBarReceiver(const CBufferedLogOutputter* logBuffer)
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123 | {
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124 | #if WINAPI_MSWINDOWS
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125 | return new CMSWindowsClientTaskBarReceiver(
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126 | CMSWindowsScreen::getInstance(), logBuffer);
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127 | #elif WINAPI_XWINDOWS
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128 | return new CXWindowsClientTaskBarReceiver(logBuffer);
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129 | #elif WINAPI_CARBON
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130 | return new COSXClientTaskBarReceiver(logBuffer);
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131 | #elif WINAPI_PM
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132 | return new CPMClientTaskBarReceiver(logBuffer);
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133 | #endif
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134 | }
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135 |
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136 |
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137 | //
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138 | // platform independent main
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139 | //
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140 |
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141 | static CClient* s_client = NULL;
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142 | static CScreen* s_clientScreen = NULL;
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143 | static CClientTaskBarReceiver* s_taskBarReceiver = NULL;
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144 | static double s_retryTime = 0.0;
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145 | static bool s_suspened = false;
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146 |
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147 | static
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148 | void
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149 | updateStatus()
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150 | {
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151 | s_taskBarReceiver->updateStatus(s_client, "");
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152 | }
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153 |
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154 | static
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155 | void
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156 | updateStatus(const CString& msg)
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157 | {
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158 | s_taskBarReceiver->updateStatus(s_client, msg);
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159 | }
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160 |
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161 | static
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162 | void
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163 | resetRestartTimeout()
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164 | {
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165 | s_retryTime = 0.0;
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166 | }
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167 |
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168 | static
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169 | double
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170 | nextRestartTimeout()
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171 | {
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172 | // choose next restart timeout. we start with rapid retries
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173 | // then slow down.
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174 | if (s_retryTime < 1.0) {
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175 | s_retryTime = 1.0;
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176 | }
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177 | else if (s_retryTime < 3.0) {
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178 | s_retryTime = 3.0;
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179 | }
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180 | else if (s_retryTime < 5.0) {
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181 | s_retryTime = 5.0;
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182 | }
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183 | else if (s_retryTime < 15.0) {
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184 | s_retryTime = 15.0;
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185 | }
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186 | else if (s_retryTime < 30.0) {
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187 | s_retryTime = 30.0;
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188 | }
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189 | else {
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190 | s_retryTime = 60.0;
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191 | }
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192 | return s_retryTime;
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193 | }
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194 |
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195 | static
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196 | void
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197 | handleScreenError(const CEvent&, void*)
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198 | {
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199 | LOG((CLOG_CRIT "error on screen"));
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200 | EVENTQUEUE->addEvent(CEvent(CEvent::kQuit));
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201 | }
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202 |
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203 | static
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204 | CScreen*
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205 | openClientScreen()
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206 | {
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207 | CScreen* screen = createScreen();
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208 | EVENTQUEUE->adoptHandler(IScreen::getErrorEvent(),
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209 | screen->getEventTarget(),
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210 | new CFunctionEventJob(
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211 | &handleScreenError));
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212 | return screen;
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213 | }
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214 |
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215 | static
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216 | void
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217 | closeClientScreen(CScreen* screen)
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218 | {
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219 | if (screen != NULL) {
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220 | EVENTQUEUE->removeHandler(IScreen::getErrorEvent(),
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221 | screen->getEventTarget());
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222 | delete screen;
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223 | }
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224 | }
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225 |
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226 | static
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227 | void
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228 | handleClientRestart(const CEvent&, void* vtimer)
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229 | {
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230 | // discard old timer
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231 | CEventQueueTimer* timer = reinterpret_cast<CEventQueueTimer*>(vtimer);
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232 | EVENTQUEUE->deleteTimer(timer);
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233 | EVENTQUEUE->removeHandler(CEvent::kTimer, timer);
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234 |
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235 | // reconnect
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236 | startClient();
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237 | }
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238 |
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239 | static
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240 | void
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241 | scheduleClientRestart(double retryTime)
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242 | {
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243 | // install a timer and handler to retry later
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244 | LOG((CLOG_DEBUG "retry in %.0f seconds", retryTime));
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245 | CEventQueueTimer* timer = EVENTQUEUE->newOneShotTimer(retryTime, NULL);
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246 | EVENTQUEUE->adoptHandler(CEvent::kTimer, timer,
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247 | new CFunctionEventJob(&handleClientRestart, timer));
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248 | }
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249 |
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250 | static
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251 | void
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252 | handleClientConnected(const CEvent&, void*)
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253 | {
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254 | LOG((CLOG_NOTE "connected to server"));
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255 | resetRestartTimeout();
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256 | updateStatus();
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257 | }
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258 |
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259 | static
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260 | void
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261 | handleClientFailed(const CEvent& e, void*)
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262 | {
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263 | CClient::CFailInfo* info =
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264 | reinterpret_cast<CClient::CFailInfo*>(e.getData());
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265 |
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266 | updateStatus(CString("Failed to connect to server: ") + info->m_what);
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267 | if (!ARG->m_restartable || !info->m_retry) {
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268 | LOG((CLOG_ERR "failed to connect to server: %s", info->m_what));
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269 | EVENTQUEUE->addEvent(CEvent(CEvent::kQuit));
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270 | }
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271 | else {
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272 | LOG((CLOG_WARN "failed to connect to server: %s", info->m_what));
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273 | if (!s_suspened) {
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274 | scheduleClientRestart(nextRestartTimeout());
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275 | }
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276 | }
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277 | }
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278 |
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279 | static
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280 | void
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281 | handleClientDisconnected(const CEvent&, void*)
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282 | {
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283 | LOG((CLOG_NOTE "disconnected from server"));
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284 | if (!ARG->m_restartable) {
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285 | EVENTQUEUE->addEvent(CEvent(CEvent::kQuit));
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286 | }
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287 | else if (!s_suspened) {
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288 | s_client->connect();
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289 | }
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290 | updateStatus();
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291 | }
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292 |
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293 | static
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294 | CClient*
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295 | openClient(const CString& name, const CNetworkAddress& address, CScreen* screen)
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296 | {
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297 | CClient* client = new CClient(name, address,
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298 | new CTCPSocketFactory, NULL, screen);
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299 | EVENTQUEUE->adoptHandler(CClient::getConnectedEvent(),
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300 | client->getEventTarget(),
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301 | new CFunctionEventJob(handleClientConnected));
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302 | EVENTQUEUE->adoptHandler(CClient::getConnectionFailedEvent(),
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303 | client->getEventTarget(),
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304 | new CFunctionEventJob(handleClientFailed));
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305 | EVENTQUEUE->adoptHandler(CClient::getDisconnectedEvent(),
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306 | client->getEventTarget(),
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307 | new CFunctionEventJob(handleClientDisconnected));
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308 | return client;
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309 | }
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310 |
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311 | static
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312 | void
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313 | closeClient(CClient* client)
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314 | {
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315 | if (client == NULL) {
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316 | return;
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317 | }
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318 |
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319 | EVENTQUEUE->removeHandler(CClient::getConnectedEvent(), client);
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320 | EVENTQUEUE->removeHandler(CClient::getConnectionFailedEvent(), client);
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321 | EVENTQUEUE->removeHandler(CClient::getDisconnectedEvent(), client);
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322 | delete client;
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323 | }
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324 |
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325 | static
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326 | bool
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327 | startClient()
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328 | {
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329 | double retryTime;
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330 | CScreen* clientScreen = NULL;
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331 | try {
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332 | if (s_clientScreen == NULL) {
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333 | clientScreen = openClientScreen();
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334 | s_client = openClient(ARG->m_name,
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335 | *ARG->m_serverAddress, clientScreen);
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336 | s_clientScreen = clientScreen;
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337 | LOG((CLOG_NOTE "started client"));
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338 | }
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339 | s_client->connect();
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340 | updateStatus();
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341 | return true;
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342 | }
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343 | catch (XScreenUnavailable& e) {
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344 | LOG((CLOG_WARN "cannot open secondary screen: %s", e.what()));
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345 | closeClientScreen(clientScreen);
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346 | updateStatus(CString("Cannot open secondary screen: ") + e.what());
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347 | retryTime = e.getRetryTime();
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348 | }
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349 | catch (XScreenOpenFailure& e) {
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350 | LOG((CLOG_CRIT "cannot open secondary screen: %s", e.what()));
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351 | closeClientScreen(clientScreen);
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352 | return false;
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353 | }
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354 | catch (XBase& e) {
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355 | LOG((CLOG_CRIT "failed to start client: %s", e.what()));
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356 | closeClientScreen(clientScreen);
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357 | return false;
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358 | }
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359 |
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360 | if (ARG->m_restartable) {
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361 | scheduleClientRestart(retryTime);
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362 | return true;
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363 | }
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364 | else {
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365 | // don't try again
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366 | return false;
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367 | }
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368 | }
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369 |
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370 | static
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371 | void
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372 | stopClient()
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373 | {
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374 | closeClient(s_client);
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375 | closeClientScreen(s_clientScreen);
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376 | s_client = NULL;
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377 | s_clientScreen = NULL;
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378 | }
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379 |
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380 | static
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381 | int
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382 | mainLoop()
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383 | {
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384 | // create socket multiplexer. this must happen after daemonization
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385 | // on unix because threads evaporate across a fork().
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386 | CSocketMultiplexer multiplexer;
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387 |
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388 | // create the event queue
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389 | CEventQueue eventQueue;
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390 |
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391 | // start the client. if this return false then we've failed and
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392 | // we shouldn't retry.
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393 | LOG((CLOG_DEBUG1 "starting client"));
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394 | if (!startClient()) {
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395 | return kExitFailed;
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396 | }
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397 |
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398 | // run event loop. if startClient() failed we're supposed to retry
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399 | // later. the timer installed by startClient() will take care of
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400 | // that.
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401 | CEvent event;
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402 | DAEMON_RUNNING(true);
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403 | EVENTQUEUE->getEvent(event);
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404 | while (event.getType() != CEvent::kQuit) {
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405 | EVENTQUEUE->dispatchEvent(event);
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406 | CEvent::deleteData(event);
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407 | EVENTQUEUE->getEvent(event);
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408 | }
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409 | DAEMON_RUNNING(false);
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410 |
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411 | // close down
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412 | LOG((CLOG_DEBUG1 "stopping client"));
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413 | stopClient();
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414 | updateStatus();
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415 | LOG((CLOG_NOTE "stopped client"));
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416 |
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417 | return kExitSuccess;
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418 | }
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419 |
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420 | static
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421 | int
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422 | daemonMainLoop(int, const char**)
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423 | {
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424 | #if SYSAPI_WIN32
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425 | CSystemLogger sysLogger(DAEMON_NAME, false);
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426 | #else
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427 | CSystemLogger sysLogger(DAEMON_NAME, true);
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428 | #endif
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429 | return mainLoop();
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430 | }
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431 |
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432 | static
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433 | int
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434 | standardStartup(int argc, char** argv)
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435 | {
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436 | if (!ARG->m_daemon) {
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437 | ARCH->showConsole(false);
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438 | }
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439 |
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440 | // parse command line
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441 | parse(argc, argv);
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442 |
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443 | // daemonize if requested
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444 | if (ARG->m_daemon) {
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445 | return ARCH->daemonize(DAEMON_NAME, &daemonMainLoop);
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446 | }
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447 | else {
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448 | return mainLoop();
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449 | }
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450 | }
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451 |
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452 | static
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453 | int
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454 | run(int argc, char** argv, ILogOutputter* outputter, StartupFunc startup)
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455 | {
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456 | // general initialization
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457 | ARG->m_serverAddress = new CNetworkAddress;
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458 | ARG->m_pname = ARCH->getBasename(argv[0]);
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459 |
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460 | // install caller's output filter
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461 | if (outputter != NULL) {
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462 | CLOG->insert(outputter);
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463 | }
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464 |
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465 | // save log messages
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466 | CBufferedLogOutputter logBuffer(1000);
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467 | CLOG->insert(&logBuffer, true);
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468 |
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469 | // make the task bar receiver. the user can control this app
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470 | // through the task bar.
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471 | s_taskBarReceiver = createTaskBarReceiver(&logBuffer);
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472 |
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473 | // run
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474 | int result = startup(argc, argv);
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475 |
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476 | // done with task bar receiver
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477 | delete s_taskBarReceiver;
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478 |
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479 | // done with log buffer
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480 | CLOG->remove(&logBuffer);
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481 |
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482 | delete ARG->m_serverAddress;
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483 | return result;
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484 | }
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485 |
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486 |
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487 | //
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488 | // command line parsing
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489 | //
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490 |
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491 | #define BYE "\nTry `%s --help' for more information."
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492 |
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493 | static void (*bye)(int) = &exit;
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494 |
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495 | static
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496 | void
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497 | version()
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498 | {
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499 | LOG((CLOG_PRINT "%s %s, protocol version %d.%d\n%s",
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500 | ARG->m_pname,
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501 | kVersion,
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502 | kProtocolMajorVersion,
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503 | kProtocolMinorVersion,
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504 | kCopyright));
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505 | }
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506 |
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507 | static
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508 | void
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509 | help()
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510 | {
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511 | #if WINAPI_XWINDOWS
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512 | # define USAGE_DISPLAY_ARG \
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513 | " [--display <display>]"
|
---|
514 | # define USAGE_DISPLAY_INFO \
|
---|
515 | " --display <display> connect to the X server at <display>\n"
|
---|
516 | #else
|
---|
517 | # define USAGE_DISPLAY_ARG
|
---|
518 | # define USAGE_DISPLAY_INFO
|
---|
519 | #endif
|
---|
520 |
|
---|
521 | LOG((CLOG_PRINT
|
---|
522 | "Usage: %s"
|
---|
523 | " [--daemon|--no-daemon]"
|
---|
524 | " [--debug <level>]"
|
---|
525 | USAGE_DISPLAY_ARG
|
---|
526 | " [--name <screen-name>]"
|
---|
527 | " [--restart|--no-restart]"
|
---|
528 | " <server-address>"
|
---|
529 | "\n\n"
|
---|
530 | "Start the synergy mouse/keyboard sharing server.\n"
|
---|
531 | "\n"
|
---|
532 | " -d, --debug <level> filter out log messages with priorty below level.\n"
|
---|
533 | " level may be: FATAL, ERROR, WARNING, NOTE, INFO,\n"
|
---|
534 | " DEBUG, DEBUG1, DEBUG2.\n"
|
---|
535 | USAGE_DISPLAY_INFO
|
---|
536 | " -f, --no-daemon run the client in the foreground.\n"
|
---|
537 | "* --daemon run the client as a daemon.\n"
|
---|
538 | " -n, --name <screen-name> use screen-name instead the hostname to identify\n"
|
---|
539 | " ourself to the server.\n"
|
---|
540 | " -1, --no-restart do not try to restart the client if it fails for\n"
|
---|
541 | " some reason.\n"
|
---|
542 | "* --restart restart the client automatically if it fails.\n"
|
---|
543 | " -h, --help display this help and exit.\n"
|
---|
544 | " --version display version information and exit.\n"
|
---|
545 | "\n"
|
---|
546 | "* marks defaults.\n"
|
---|
547 | "\n"
|
---|
548 | "The server address is of the form: [<hostname>][:<port>]. The hostname\n"
|
---|
549 | "must be the address or hostname of the server. The port overrides the\n"
|
---|
550 | "default port, %d.\n"
|
---|
551 | "\n"
|
---|
552 | "Where log messages go depends on the platform and whether or not the\n"
|
---|
553 | "client is running as a daemon.",
|
---|
554 | ARG->m_pname, kDefaultPort));
|
---|
555 |
|
---|
556 | }
|
---|
557 |
|
---|
558 | static
|
---|
559 | bool
|
---|
560 | isArg(int argi, int argc, const char* const* argv,
|
---|
561 | const char* name1, const char* name2,
|
---|
562 | int minRequiredParameters = 0)
|
---|
563 | {
|
---|
564 | if ((name1 != NULL && strcmp(argv[argi], name1) == 0) ||
|
---|
565 | (name2 != NULL && strcmp(argv[argi], name2) == 0)) {
|
---|
566 | // match. check args left.
|
---|
567 | if (argi + minRequiredParameters >= argc) {
|
---|
568 | LOG((CLOG_PRINT "%s: missing arguments for `%s'" BYE,
|
---|
569 | ARG->m_pname, argv[argi], ARG->m_pname));
|
---|
570 | bye(kExitArgs);
|
---|
571 | }
|
---|
572 | return true;
|
---|
573 | }
|
---|
574 |
|
---|
575 | // no match
|
---|
576 | return false;
|
---|
577 | }
|
---|
578 |
|
---|
579 | static
|
---|
580 | void
|
---|
581 | parse(int argc, const char* const* argv)
|
---|
582 | {
|
---|
583 | assert(ARG->m_pname != NULL);
|
---|
584 | assert(argv != NULL);
|
---|
585 | assert(argc >= 1);
|
---|
586 |
|
---|
587 | // set defaults
|
---|
588 | ARG->m_name = ARCH->getHostName();
|
---|
589 |
|
---|
590 | // parse options
|
---|
591 | int i;
|
---|
592 | for (i = 1; i < argc; ++i) {
|
---|
593 | if (isArg(i, argc, argv, "-d", "--debug", 1)) {
|
---|
594 | // change logging level
|
---|
595 | ARG->m_logFilter = argv[++i];
|
---|
596 | }
|
---|
597 |
|
---|
598 | else if (isArg(i, argc, argv, "-n", "--name", 1)) {
|
---|
599 | // save screen name
|
---|
600 | ARG->m_name = argv[++i];
|
---|
601 | }
|
---|
602 |
|
---|
603 | else if (isArg(i, argc, argv, NULL, "--camp")) {
|
---|
604 | // ignore -- included for backwards compatibility
|
---|
605 | }
|
---|
606 |
|
---|
607 | else if (isArg(i, argc, argv, NULL, "--no-camp")) {
|
---|
608 | // ignore -- included for backwards compatibility
|
---|
609 | }
|
---|
610 |
|
---|
611 | else if (isArg(i, argc, argv, "-f", "--no-daemon")) {
|
---|
612 | // not a daemon
|
---|
613 | ARG->m_daemon = false;
|
---|
614 | }
|
---|
615 |
|
---|
616 | else if (isArg(i, argc, argv, NULL, "--daemon")) {
|
---|
617 | // daemonize
|
---|
618 | ARG->m_daemon = true;
|
---|
619 | }
|
---|
620 |
|
---|
621 | #if WINAPI_XWINDOWS
|
---|
622 | else if (isArg(i, argc, argv, "-display", "--display", 1)) {
|
---|
623 | // use alternative display
|
---|
624 | ARG->m_display = argv[++i];
|
---|
625 | }
|
---|
626 | #endif
|
---|
627 |
|
---|
628 | else if (isArg(i, argc, argv, "-1", "--no-restart")) {
|
---|
629 | // don't try to restart
|
---|
630 | ARG->m_restartable = false;
|
---|
631 | }
|
---|
632 |
|
---|
633 | else if (isArg(i, argc, argv, NULL, "--restart")) {
|
---|
634 | // try to restart
|
---|
635 | ARG->m_restartable = true;
|
---|
636 | }
|
---|
637 |
|
---|
638 | else if (isArg(i, argc, argv, "-z", NULL)) {
|
---|
639 | ARG->m_backend = true;
|
---|
640 | }
|
---|
641 |
|
---|
642 | else if (isArg(i, argc, argv, "-h", "--help")) {
|
---|
643 | help();
|
---|
644 | bye(kExitSuccess);
|
---|
645 | }
|
---|
646 |
|
---|
647 | else if (isArg(i, argc, argv, NULL, "--version")) {
|
---|
648 | version();
|
---|
649 | bye(kExitSuccess);
|
---|
650 | }
|
---|
651 |
|
---|
652 | else if (isArg(i, argc, argv, "--", NULL)) {
|
---|
653 | // remaining arguments are not options
|
---|
654 | ++i;
|
---|
655 | break;
|
---|
656 | }
|
---|
657 |
|
---|
658 | else if (argv[i][0] == '-') {
|
---|
659 | LOG((CLOG_PRINT "%s: unrecognized option `%s'" BYE,
|
---|
660 | ARG->m_pname, argv[i], ARG->m_pname));
|
---|
661 | bye(kExitArgs);
|
---|
662 | }
|
---|
663 |
|
---|
664 | else {
|
---|
665 | // this and remaining arguments are not options
|
---|
666 | break;
|
---|
667 | }
|
---|
668 | }
|
---|
669 |
|
---|
670 | // exactly one non-option argument (server-address)
|
---|
671 | if (i == argc) {
|
---|
672 | LOG((CLOG_PRINT "%s: a server address or name is required" BYE,
|
---|
673 | ARG->m_pname, ARG->m_pname));
|
---|
674 | bye(kExitArgs);
|
---|
675 | }
|
---|
676 | if (i + 1 != argc) {
|
---|
677 | LOG((CLOG_PRINT "%s: unrecognized option `%s'" BYE,
|
---|
678 | ARG->m_pname, argv[i], ARG->m_pname));
|
---|
679 | bye(kExitArgs);
|
---|
680 | }
|
---|
681 |
|
---|
682 | // save server address
|
---|
683 | try {
|
---|
684 | *ARG->m_serverAddress = CNetworkAddress(argv[i], kDefaultPort);
|
---|
685 | ARG->m_serverAddress->resolve();
|
---|
686 | }
|
---|
687 | catch (XSocketAddress& e) {
|
---|
688 | // allow an address that we can't look up if we're restartable.
|
---|
689 | // we'll try to resolve the address each time we connect to the
|
---|
690 | // server. a bad port will never get better. patch by Brent
|
---|
691 | // Priddy.
|
---|
692 | if (!ARG->m_restartable || e.getError() == XSocketAddress::kBadPort) {
|
---|
693 | LOG((CLOG_PRINT "%s: %s" BYE,
|
---|
694 | ARG->m_pname, e.what(), ARG->m_pname));
|
---|
695 | bye(kExitFailed);
|
---|
696 | }
|
---|
697 | }
|
---|
698 |
|
---|
699 | // increase default filter level for daemon. the user must
|
---|
700 | // explicitly request another level for a daemon.
|
---|
701 | if (ARG->m_daemon && ARG->m_logFilter == NULL) {
|
---|
702 | #if SYSAPI_WIN32
|
---|
703 | if (CArchMiscWindows::isWindows95Family()) {
|
---|
704 | // windows 95 has no place for logging so avoid showing
|
---|
705 | // the log console window.
|
---|
706 | ARG->m_logFilter = "FATAL";
|
---|
707 | }
|
---|
708 | else
|
---|
709 | #endif
|
---|
710 | {
|
---|
711 | ARG->m_logFilter = "NOTE";
|
---|
712 | }
|
---|
713 | }
|
---|
714 |
|
---|
715 | // set log filter
|
---|
716 | if (!CLOG->setFilter(ARG->m_logFilter)) {
|
---|
717 | LOG((CLOG_PRINT "%s: unrecognized log level `%s'" BYE,
|
---|
718 | ARG->m_pname, ARG->m_logFilter, ARG->m_pname));
|
---|
719 | bye(kExitArgs);
|
---|
720 | }
|
---|
721 |
|
---|
722 | // identify system
|
---|
723 | LOG((CLOG_INFO "Synergy client %s on %s", kVersion, ARCH->getOSName().c_str()));
|
---|
724 | }
|
---|
725 |
|
---|
726 |
|
---|
727 | //
|
---|
728 | // platform dependent entry points
|
---|
729 | //
|
---|
730 |
|
---|
731 | #if SYSAPI_WIN32
|
---|
732 |
|
---|
733 | static bool s_hasImportantLogMessages = false;
|
---|
734 |
|
---|
735 | //
|
---|
736 | // CMessageBoxOutputter
|
---|
737 | //
|
---|
738 | // This class writes severe log messages to a message box
|
---|
739 | //
|
---|
740 |
|
---|
741 | class CMessageBoxOutputter : public ILogOutputter {
|
---|
742 | public:
|
---|
743 | CMessageBoxOutputter() { }
|
---|
744 | virtual ~CMessageBoxOutputter() { }
|
---|
745 |
|
---|
746 | // ILogOutputter overrides
|
---|
747 | virtual void open(const char*) { }
|
---|
748 | virtual void close() { }
|
---|
749 | virtual void show(bool) { }
|
---|
750 | virtual bool write(ELevel level, const char* message);
|
---|
751 | virtual const char* getNewline() const { return ""; }
|
---|
752 | };
|
---|
753 |
|
---|
754 | bool
|
---|
755 | CMessageBoxOutputter::write(ELevel level, const char* message)
|
---|
756 | {
|
---|
757 | // note any important messages the user may need to know about
|
---|
758 | if (level <= CLog::kWARNING) {
|
---|
759 | s_hasImportantLogMessages = true;
|
---|
760 | }
|
---|
761 |
|
---|
762 | // FATAL and PRINT messages get a dialog box if not running as
|
---|
763 | // backend. if we're running as a backend the user will have
|
---|
764 | // a chance to see the messages when we exit.
|
---|
765 | if (!ARG->m_backend && level <= CLog::kFATAL) {
|
---|
766 | MessageBox(NULL, message, ARG->m_pname, MB_OK | MB_ICONWARNING);
|
---|
767 | return false;
|
---|
768 | }
|
---|
769 | else {
|
---|
770 | return true;
|
---|
771 | }
|
---|
772 | }
|
---|
773 |
|
---|
774 | static
|
---|
775 | void
|
---|
776 | byeThrow(int x)
|
---|
777 | {
|
---|
778 | CArchMiscWindows::daemonFailed(x);
|
---|
779 | }
|
---|
780 |
|
---|
781 | static
|
---|
782 | int
|
---|
783 | daemonNTMainLoop(int argc, const char** argv)
|
---|
784 | {
|
---|
785 | parse(argc, argv);
|
---|
786 | ARG->m_backend = false;
|
---|
787 | return CArchMiscWindows::runDaemon(mainLoop);
|
---|
788 | }
|
---|
789 |
|
---|
790 | static
|
---|
791 | int
|
---|
792 | daemonNTStartup(int, char**)
|
---|
793 | {
|
---|
794 | CSystemLogger sysLogger(DAEMON_NAME, false);
|
---|
795 | bye = &byeThrow;
|
---|
796 | return ARCH->daemonize(DAEMON_NAME, &daemonNTMainLoop);
|
---|
797 | }
|
---|
798 |
|
---|
799 | static
|
---|
800 | int
|
---|
801 | foregroundStartup(int argc, char** argv)
|
---|
802 | {
|
---|
803 | ARCH->showConsole(false);
|
---|
804 |
|
---|
805 | // parse command line
|
---|
806 | parse(argc, argv);
|
---|
807 |
|
---|
808 | // never daemonize
|
---|
809 | return mainLoop();
|
---|
810 | }
|
---|
811 |
|
---|
812 | static
|
---|
813 | void
|
---|
814 | showError(HINSTANCE instance, const char* title, UINT id, const char* arg)
|
---|
815 | {
|
---|
816 | CString fmt = CMSWindowsUtil::getString(instance, id);
|
---|
817 | CString msg = CStringUtil::format(fmt.c_str(), arg);
|
---|
818 | MessageBox(NULL, msg.c_str(), title, MB_OK | MB_ICONWARNING);
|
---|
819 | }
|
---|
820 |
|
---|
821 | int WINAPI
|
---|
822 | WinMain(HINSTANCE instance, HINSTANCE, LPSTR, int)
|
---|
823 | {
|
---|
824 | try {
|
---|
825 | CArchMiscWindows::setIcons((HICON)LoadImage(instance,
|
---|
826 | MAKEINTRESOURCE(IDI_SYNERGY),
|
---|
827 | IMAGE_ICON,
|
---|
828 | 32, 32, LR_SHARED),
|
---|
829 | (HICON)LoadImage(instance,
|
---|
830 | MAKEINTRESOURCE(IDI_SYNERGY),
|
---|
831 | IMAGE_ICON,
|
---|
832 | 16, 16, LR_SHARED));
|
---|
833 | CArch arch(instance);
|
---|
834 | CMSWindowsScreen::init(instance);
|
---|
835 | CLOG;
|
---|
836 | CThread::getCurrentThread().setPriority(-14);
|
---|
837 | CArgs args;
|
---|
838 |
|
---|
839 | // set title on log window
|
---|
840 | ARCH->openConsole((CString(kAppVersion) + " " + "Client").c_str());
|
---|
841 |
|
---|
842 | // windows NT family starts services using no command line options.
|
---|
843 | // since i'm not sure how to tell the difference between that and
|
---|
844 | // a user providing no options we'll assume that if there are no
|
---|
845 | // arguments and we're on NT then we're being invoked as a service.
|
---|
846 | // users on NT can use `--daemon' or `--no-daemon' to force us out
|
---|
847 | // of the service code path.
|
---|
848 | StartupFunc startup = &standardStartup;
|
---|
849 | if (!CArchMiscWindows::isWindows95Family()) {
|
---|
850 | if (__argc <= 1) {
|
---|
851 | startup = &daemonNTStartup;
|
---|
852 | }
|
---|
853 | else {
|
---|
854 | startup = &foregroundStartup;
|
---|
855 | }
|
---|
856 | }
|
---|
857 |
|
---|
858 | // send PRINT and FATAL output to a message box
|
---|
859 | int result = run(__argc, __argv, new CMessageBoxOutputter, startup);
|
---|
860 |
|
---|
861 | // let user examine any messages if we're running as a backend
|
---|
862 | // by putting up a dialog box before exiting.
|
---|
863 | if (args.m_backend && s_hasImportantLogMessages) {
|
---|
864 | showError(instance, args.m_pname, IDS_FAILED, "");
|
---|
865 | }
|
---|
866 |
|
---|
867 | delete CLOG;
|
---|
868 | return result;
|
---|
869 | }
|
---|
870 | catch (XBase& e) {
|
---|
871 | showError(instance, __argv[0], IDS_UNCAUGHT_EXCEPTION, e.what());
|
---|
872 | throw;
|
---|
873 | }
|
---|
874 | catch (XArch& e) {
|
---|
875 | showError(instance, __argv[0], IDS_INIT_FAILED, e.what().c_str());
|
---|
876 | return kExitFailed;
|
---|
877 | }
|
---|
878 | catch (...) {
|
---|
879 | showError(instance, __argv[0], IDS_UNCAUGHT_EXCEPTION, "<unknown>");
|
---|
880 | throw;
|
---|
881 | }
|
---|
882 | }
|
---|
883 |
|
---|
884 | #elif SYSAPI_UNIX
|
---|
885 |
|
---|
886 | int
|
---|
887 | main(int argc, char** argv)
|
---|
888 | {
|
---|
889 | CArgs args;
|
---|
890 | try {
|
---|
891 | int result;
|
---|
892 | CArch arch;
|
---|
893 | CLOG;
|
---|
894 | CArgs args;
|
---|
895 | result = run(argc, argv, NULL, &standardStartup);
|
---|
896 | delete CLOG;
|
---|
897 | return result;
|
---|
898 | }
|
---|
899 | catch (XBase& e) {
|
---|
900 | LOG((CLOG_CRIT "Uncaught exception: %s\n", e.what()));
|
---|
901 | throw;
|
---|
902 | }
|
---|
903 | catch (XArch& e) {
|
---|
904 | LOG((CLOG_CRIT "Initialization failed: %s" BYE, e.what().c_str()));
|
---|
905 | return kExitFailed;
|
---|
906 | }
|
---|
907 | catch (...) {
|
---|
908 | LOG((CLOG_CRIT "Uncaught exception: <unknown exception>\n"));
|
---|
909 | throw;
|
---|
910 | }
|
---|
911 | }
|
---|
912 |
|
---|
913 | #else
|
---|
914 |
|
---|
915 | #error no main() for platform
|
---|
916 |
|
---|
917 | #endif
|
---|