00001 /* +00002 * ============================================================================== +00003 * Name : csasyncrequesthandler.cpp +00004 * Part of : CSAsync +00005 * Interface : +00006 * Description : +00007 * Version : +00008 * +00009 * Copyright (c) 2004-2006 Nokia Corporation. +00010 * This material, including documentation and any related +00011 * computer programs, is protected by copyright controlled by +00012 * Nokia Corporation. +00013 * ============================================================================== +00014 */ +00015 +00016 // INCLUDE FILES +00017 #include <e32svr.h> +00018 +00019 #include "CSAsync.pan" +00020 #include "CSAsyncRequestHandler.h" +00021 #include "ClientServerCommon.h" +00022 #include "AsyncTimeObserver.h" +00023 +00024 // ========================= MEMBER FUNCTIONS ================================== +00025 +00026 // ----------------------------------------------------------------------------- +00027 // CCSAsyncRequestHandler::NewL() +00028 // Two-phased constructor. +00029 // ----------------------------------------------------------------------------- +00030 CCSAsyncRequestHandler* CCSAsyncRequestHandler::NewL( +00031 MAsyncTimeObserver& aObserver ) +00032 { +00033 CCSAsyncRequestHandler* self = NewLC( aObserver ); +00034 CleanupStack::Pop( self ); +00035 return( self ) ; +00036 } +00037 +00038 // ----------------------------------------------------------------------------- +00039 // CCSAsyncRequestHandler::NewLC() +00040 // Two-phased constructor. +00041 // ----------------------------------------------------------------------------- +00042 CCSAsyncRequestHandler* CCSAsyncRequestHandler::NewLC( +00043 MAsyncTimeObserver& aObserver ) +00044 { +00045 CCSAsyncRequestHandler* self = +00046 new ( ELeave ) CCSAsyncRequestHandler( aObserver ); +00047 CleanupStack::PushL( self ); +00048 self->ConstructL(); +00049 return self; +00050 } +00051 +00052 // ----------------------------------------------------------------------------- +00053 // CCSAsyncRequestHandler::ConstructL() +00054 // Symbian 2nd phase constructor can leave. +00055 // ----------------------------------------------------------------------------- +00056 // +00057 void CCSAsyncRequestHandler::ConstructL() +00058 { +00059 User::LeaveIfError( iSession.Connect() ); +00060 } +00061 +00062 // ----------------------------------------------------------------------------- +00063 // CCSAsyncRequestHandler::CCSAsyncRequestHandler() +00064 // C++ default constructor can NOT contain any code, that might leave. +00065 // ----------------------------------------------------------------------------- +00066 CCSAsyncRequestHandler::CCSAsyncRequestHandler( MAsyncTimeObserver& aObserver ) +00067 : CActive( EPriorityStandard ), iObserver( aObserver ) +00068 { +00069 CActiveScheduler::Add( this ); +00070 } +00071 +00072 // ----------------------------------------------------------------------------- +00073 // CCSAsyncRequestHandler::~CCSAsyncRequestHandler() +00074 // Destructor. +00075 // ----------------------------------------------------------------------------- +00076 // +00077 CCSAsyncRequestHandler::~CCSAsyncRequestHandler() +00078 { +00079 Cancel(); // Causes call to DoCancel() +00080 iSession.Close(); +00081 } +00082 +00083 // ----------------------------------------------------------------------------- +00084 // CCSAsyncRequestHandler::RequestTime() +00085 // Sends a request to the server for an update to the time. +00086 // ----------------------------------------------------------------------------- +00087 // +00088 void CCSAsyncRequestHandler::RequestTime() +00089 { +00090 if ( !IsActive() ) +00091 { +00092 iSession.RequestTime( iTime, iStatus ); +00093 SetActive(); +00094 } +00095 } +00096 +00097 // ----------------------------------------------------------------------------- +00098 // CCSAsyncRequestHandler::CancelRequest() +00099 // Cancels an outstanding request. +00100 // ----------------------------------------------------------------------------- +00101 // +00102 void CCSAsyncRequestHandler::CancelRequest() +00103 { +00104 Cancel() ; // Causes call to DoCancel() +00105 } +00106 +00107 // ----------------------------------------------------------------------------- +00108 // CCSAsyncRequestHandler::RunL() +00109 // Invoked to handle responses from the server. +00110 // ----------------------------------------------------------------------------- +00111 // +00112 void CCSAsyncRequestHandler::RunL() +00113 { +00114 switch ( iStatus.Int() ) +00115 { +00116 case ETimeServRequestTimeComplete: +00117 // The server has completed the request, signalled the client +00118 // thread and the clients active scheduler runs the active object. +00119 // Now do something with it +00120 iObserver.HandleTimeUpdate(); +00121 RequestTime(); // Add this line to make the clock keep ticking +00122 break ; +00123 +00124 case KErrCancel: +00125 // The request was canceled +00126 break ; +00127 +00128 case KErrNotReady: +00129 // We requested a new time before completing the previous request +00130 default: +00131 User::Panic( KCSAsyncClient, ECSAsyncBadState ); // Unexpected error +00132 break; +00133 } +00134 } +00135 +00136 // ----------------------------------------------------------------------------- +00137 // CCSAsyncRequestHandler::DoCancel() +00138 // Cancels any outstanding operation. +00139 // ----------------------------------------------------------------------------- +00140 // +00141 void CCSAsyncRequestHandler::DoCancel() +00142 { +00143 iSession.CancelRequestTime(); +00144 } +00145 +00146 // ----------------------------------------------------------------------------- +00147 // CCSAsyncRequestHandler::Time() const +00148 // Gets a copy of the last time received from the server. +00149 // ----------------------------------------------------------------------------- +00150 // +00151 TTime CCSAsyncRequestHandler::Time() const +00152 { +00153 return iTime; +00154 } +00155 +00156 // End of File +
1.6.2
+
+