00001 /* 00002 Copyright (c) 2000-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 00003 00004 Redistribution and use in source and binary forms, with or without 00005 modification, are permitted provided that the following conditions are met: 00006 00007 * Redistributions of source code must retain the above copyright notice, this 00008 list of conditions and the following disclaimer. 00009 * Redistributions in binary form must reproduce the above copyright notice, 00010 this list of conditions and the following disclaimer in the documentation 00011 and/or other materials provided with the distribution. 00012 * Neither the name of Nokia Corporation nor the names of its contributors 00013 may be used to endorse or promote products derived from this software 00014 without specific prior written permission. 00015 00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00017 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00018 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00020 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00021 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00022 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00023 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00024 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00025 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 00027 Description: 00028 */ 00029 00030 00031 #include <e32base.h> 00032 00033 // needed for creating server thread. 00034 const TUint KDefaultHeapSize=0x10000; 00035 00036 // reasons for server panic 00037 enum TCountServPanic 00038 { 00039 EBadRequest = 1, 00040 EBadDescriptor, 00041 EMainSchedulerError, 00042 ESvrCreateServer, 00043 ESvrStartServer, 00044 ECreateTrapCleanup, 00045 ENotImplementedYet, 00046 }; 00047 00048 00049 //********************************** 00050 //CCountServServer 00051 //********************************** 00058 class CCountServServer : public CServer2 00059 { 00060 public: 00061 // Creates a new session with the server; the function 00062 // implements the pure virtutal function 00063 // defined in class CServer2 00064 CSession2* NewSessionL(const TVersion& aVersion,const RMessage2& aMessage) const; 00065 public : 00066 // The thread function executed by the server 00067 static TInt ThreadFunction(TAny* aStarted); 00068 // Function to panic the server 00069 static void PanicServer(TCountServPanic aPanic); 00070 00071 protected: 00072 CCountServServer(CActive::TPriority aActiveObjectPriority); 00073 }; 00074 00075 00076 //********************************** 00077 //CCountServSession 00078 //********************************** 00083 class CCountServSession : public CSession2 00084 { 00085 public: 00086 CCountServSession(); 00087 00088 //service request 00089 void ServiceL(const RMessage2& aMessage); 00090 void DispatchMessageL(const RMessage2& aMessage); 00091 00092 //services available to initialize/increase/decrease/reset and return the counter value. 00093 void SetFromStringL(const RMessage2& aMessage); 00094 void Increase(); 00095 void Decrease(); 00096 void IncreaseBy(const RMessage2& aMessage); 00097 void DecreaseBy(const RMessage2& aMessage); 00098 void CounterValueL(const RMessage2& aMessage); 00099 void Reset(); 00100 00101 protected: 00102 // panic the client 00103 void PanicClient(const RMessage2& aMessage,TInt aPanic) const; 00104 00105 private: 00106 TInt iCount; 00107 }; 00108 00109