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1 /* |
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2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * Client implementation for FlexTimerServerMonitor |
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16 * |
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17 */ |
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18 |
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19 /* |
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20 * %version: 1 % |
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21 */ |
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22 #include "rflextimerservermonitor.h" |
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23 #include "flextimerservermonitorcommon.h" |
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24 #include "OstTraceDefinitions.h" |
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25 #ifdef OST_TRACE_COMPILER_IN_USE |
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26 #include "rflextimerservermonitorTraces.h" |
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27 #endif |
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28 |
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29 // ======== MEMBER FUNCTIONS ======== |
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30 // --------------------------------------------------------------------------- |
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31 // Constructs the object. |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 EXPORT_C RFlexTimerServerMonitor::RFlexTimerServerMonitor() |
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35 { |
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36 } |
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37 |
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38 // --------------------------------------------------------------------------- |
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39 // Destructs the object. |
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40 // --------------------------------------------------------------------------- |
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41 // |
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42 EXPORT_C RFlexTimerServerMonitor::~RFlexTimerServerMonitor() |
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43 { |
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44 Close(); |
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45 } |
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46 |
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47 // --------------------------------------------------------------------------- |
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48 // Connects to the server and create a session. |
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49 // --------------------------------------------------------------------------- |
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50 // |
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51 EXPORT_C TInt RFlexTimerServerMonitor::Connect() |
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52 { |
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53 // Starts the server, if it does not already exist in the system. |
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54 TInt ret = StartServer(); |
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55 |
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56 if ( ret == KErrNone ) |
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57 { // No session, create it |
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58 ret = CreateSession( |
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59 KFlexTimerServerMonitorServerName, |
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60 Version(), |
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61 KFlexTimerServerMonitorServerMessageSlots ); |
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62 } |
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63 return ret; |
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64 } |
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65 |
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66 // --------------------------------------------------------------------------- |
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67 // Start monitoring FlexTimer server crashes |
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68 // --------------------------------------------------------------------------- |
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69 // |
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70 EXPORT_C TInt RFlexTimerServerMonitor::StartMonitoring() |
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71 { |
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72 return SendReceive( EFlexTimerServerMonitorStartMonitoring ); |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Get the status of the monitoring; has FlexTimer server crashed while |
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77 // monitoring or not. |
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78 // --------------------------------------------------------------------------- |
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79 // |
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80 EXPORT_C TInt RFlexTimerServerMonitor::GetStatus( TBool& aHasServerCrashed ) |
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81 { |
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82 TPckgBuf<TBool> pckg; |
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83 TIpcArgs args( &pckg ); |
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84 |
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85 TInt ret = SendReceive( EFlexTimerServerMonitorHasServerCrashed, args ); |
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86 |
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87 // Extract the value returned from the server. |
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88 aHasServerCrashed = pckg(); |
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89 return ret; |
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90 } |
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91 |
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92 // --------------------------------------------------------------------------- |
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93 // Stop monitoring FlexTimer server crashes |
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94 // --------------------------------------------------------------------------- |
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95 // |
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96 EXPORT_C TInt RFlexTimerServerMonitor::StopMonitoring() |
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97 { |
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98 return SendReceive( EFlexTimerServerMonitorStopMonitoring ); |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // Gets the version number. |
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103 // --------------------------------------------------------------------------- |
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104 // |
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105 TVersion RFlexTimerServerMonitor::Version() const |
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106 { |
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107 return ( TVersion( KFlexTimerServerMonitorMajorVersionNumber, |
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108 KFlexTimerServerMonitorMinorVersionNumber, |
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109 KFlexTimerServerMonitorBuildVersionNumber ) ); |
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110 } |
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111 |
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112 // --------------------------------------------------------------------------- |
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113 // Connects to the server. If server does not exist, it is created. |
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114 // --------------------------------------------------------------------------- |
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115 // |
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116 TInt RFlexTimerServerMonitor::StartServer() |
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117 { |
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118 TFindServer findServer( KFlexTimerServerMonitorServerName ); |
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119 TFullName serverName; |
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120 |
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121 // See if the server is already started. |
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122 TInt ret = findServer.Next( serverName ); |
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123 |
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124 if ( ret != KErrNone ) |
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125 { |
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126 //Server was not found so create one. |
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127 RProcess serverProcess; |
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128 TBuf<1> serverParameters; |
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129 |
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130 // Load the executable for the server. |
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131 ret = serverProcess.Create( KFlexTimerServerMonitorServerExe, |
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132 serverParameters, |
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133 EOwnerThread ); |
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134 |
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135 if ( ret == KErrNone ) |
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136 { |
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137 // Server has been created successfully. It is initially |
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138 // in suspended state. Now resume the server process. |
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139 |
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140 // Wait until the server process has been started. |
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141 TRequestStatus status; |
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142 |
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143 serverProcess.Rendezvous( status ); |
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144 serverProcess.Resume(); |
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145 User::WaitForRequest( status ); |
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146 |
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147 // Check if server has panicked during initialization. |
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148 ret = serverProcess.ExitType(); |
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149 if ( ret == EExitPanic ) |
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150 { |
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151 ret = KErrServerTerminated; |
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152 } |
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153 else |
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154 { |
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155 ret = status.Int(); |
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156 } |
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157 |
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158 // The server process stands on its own. This handle can |
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159 // be closed. |
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160 serverProcess.Close(); |
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161 } |
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162 } |
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163 return ret; |
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164 } |