author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
changeset 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Name : signalclient.cpp |
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// Part of : signal server |
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// |
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// |
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|
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#include "signalclient.h" |
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#include "signalcommon.h" |
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#include <e32std.h> |
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// A version must be specified when creating a session with the server |
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const TUint KIpcServerMajorVersionNumber = 1; |
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const TUint KIpcServerMinorVersionNumber = 0; |
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const TUint KIpcServerBuildVersionNumber = 0; |
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|
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_LIT(KServerName,"SignalServer"); |
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const TUid KServerUid3={0x2001F3C8}; |
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|
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static TInt StartServer() |
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{ |
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const TUidType serverUid(KNullUid,KNullUid,KServerUid3); |
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RProcess server; |
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TInt r = server.Create(KServerName,KNullDesC); |
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if ( r != KErrNone ) |
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{ |
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return r; |
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} |
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TRequestStatus stat; |
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server.Rendezvous(stat); |
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if ( stat != KRequestPending ) |
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{ |
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server.Kill(0); // abort startup |
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} |
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else |
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{ |
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server.Resume(); // logon OK - start the server |
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} |
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User::WaitForRequest(stat); // wait for start or death |
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|
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// we can't use the 'exit reason' if the server panicked as this |
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// is the panic 'reason' and may be '0' which cannot be distinguished |
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// from KErrNone |
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|
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r = ( server.ExitType() == EExitPanic ) ? KErrGeneral : stat.Int(); |
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server.Close(); |
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return r; |
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} |
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TInt RSignalSession::Connect() |
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{ |
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TInt retry = 2; // A maximum of two iterations of the loop required |
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for(;;) |
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{ |
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TInt r = CreateSession(KServerName,TVersion(KIpcServerMajorVersionNumber, |
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KIpcServerMinorVersionNumber, |
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KIpcServerBuildVersionNumber), -1, |
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EIpcSession_Sharable); |
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|
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if ( (KErrNotFound != r) && (KErrServerTerminated != r) ) |
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{ |
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return r; |
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} |
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if ( --retry == 0 ) |
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{ |
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return r; |
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} |
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r = StartServer(); |
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if ( (KErrNone != r) && (KErrAlreadyExists != r) ) |
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{ |
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return r; |
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} |
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} |
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} |
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|
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TInt RSignalSession::OnDemandConnection() |
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{ |
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TInt err = KErrNone; |
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//On Demand connection |
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if ( !iIsConnected ) |
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{ |
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Lock(); |
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if ( !iIsConnected ) |
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{ |
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err = Connect (); |
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if ( KErrNone == err) |
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{ |
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iIsConnected = ETrue; |
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} |
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} |
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UnLock(); |
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} |
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return err; |
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} |
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TInt RSignalSession::SendSignal(TInt aPid,TInt aSignal) |
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{ |
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TInt err = KErrNone; |
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if (KErrNone != OnDemandConnection()) |
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{ |
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return KErrGeneral; |
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} |
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err = SendReceive(ESendSignal, TIpcArgs(aPid,aSignal)); |
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return err; |
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} |
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TInt RSignalSession::SendSignalValue(TInt aPid,TInt aSignal,TInt aValue) |
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{ |
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TInt err = KErrNone; |
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if (KErrNone != OnDemandConnection()) |
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{ |
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return KErrGeneral; |
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} |
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err = SendReceive(ESendSignalValue, TIpcArgs(aPid,aSignal,aValue)); |
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return err; |
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} |
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TInt RSignalSession::SendPipe(RPipe& aPipe) |
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{ |
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TInt err = KErrNone; |
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if (KErrNone != OnDemandConnection()) |
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{ |
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return KErrGeneral; |
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} |
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err = SendReceive(ESendPipe, TIpcArgs(aPipe)); |
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return err; |
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} |