examples/Base/IPC/ClientServer/Simple/SimpleClient.h

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 #if !defined(__COUNTSERV_H__)
00032 #define __COUNTSERV_H__
00033 
00034 #if !defined(__E32BASE_H__)
00035 #include <e32base.h>
00036 #endif
00037 
00038 
00039 //**********************************
00040 //RCountServSession
00041 //**********************************
00042 
00043 // Our client-side handle to a session with the server.
00044 // The class forms a layer over the Symbian provided RSessionBase class.
00045 //
00046 // The class deals with the requests made by the main example code by forwarding
00047 // them to the server. The type of request is identified by a code, one of
00048 // the TCountServRqst enum values, and arguments are passed via a TIpcArgs object.
00049 //
00050 // The functions Increase(), Decrease() etc are wrappers for different calls to 
00051 // SendReceive().
00052 //
00053 // Most of the functions here return void; if they fail, the server panics the client.
00054 // If they return it can be assumed that there is no error.
00055 //
00056 // The RThread object is a handle to the thread that is acting as the server.
00057 
00058 
00059 class RCountServSession : public RSessionBase
00060         {
00061 public:
00062         RCountServSession();
00063         TInt Connect();
00064         TVersion Version() const;
00065         TInt UnsupportedRequest();
00066         TInt SetFromString(const TDesC& aString);
00067         void Increase();
00068         void Decrease();
00069         void IncreaseBy(TInt anInt);
00070         void DecreaseBy(TInt anInt);
00071         void Reset();
00072         TInt CounterValue();
00073         void BadRequest();
00074         void Close();
00075 private:
00076     RThread iServerThread;
00077         };
00078 
00079 
00080 #endif
00081 

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