memspy/Driver/Kernel/Source/SubChannels/MemSpyDriverLogChanClientServer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:57:15 +0200
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permissions -rw-r--r--
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/*
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* Copyright (c) 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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*
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*/
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#include "MemSpyDriverLogChanClientServer.h"
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// System includes
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#include <memspy/driver/memspydriverobjectsshared.h>
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// Shared includes
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#include "MemSpyDriverOpCodes.h"
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#include "MemSpyDriverObjectsInternal.h"
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// User includes
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#include "MemSpyDriverUtils.h"
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#include "MemSpyDriverOSAdaption.h"
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DMemSpyDriverLogChanClientServer::DMemSpyDriverLogChanClientServer( DMemSpyDriverDevice& aDevice, DThread& aThread )
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:   DMemSpyDriverLogChanContainerBase( aDevice, aThread )
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    {
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	TRACE( Kern::Printf("DMemSpyDriverLogChanChunks::DMemSpyDriverLogChanChunks() - this: 0x%08x", this ));
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    }
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DMemSpyDriverLogChanClientServer::~DMemSpyDriverLogChanClientServer()
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	{
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	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::~DMemSpyDriverLogChanClientServer() - START - this: 0x%08x", this ));
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	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::~DMemSpyDriverLogChanClientServer() - END - this: 0x%08x", this ));
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	}
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TInt DMemSpyDriverLogChanClientServer::Request( TInt aFunction, TAny* a1, TAny* a2 )
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	{
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	TInt r = DMemSpyDriverLogChanContainerBase::Request( aFunction, a1, a2 );
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    if  ( r == KErrNone )
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        {
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	    switch( aFunction )
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		    {
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	    case EMemSpyDriverOpCodeClientServerGetServerSessionHandles:
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            r = GetServerSessionHandles( (TMemSpyDriverInternalServerSessionHandleParams*) a1 );
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            break;
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	    case EMemSpyDriverOpCodeClientServerGetServerSessionInfo:
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            r = GetServerSessionInfo( a1, (TMemSpyDriverServerSessionInfo*) a2 );
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            break;
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        default:
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            r = KErrNotSupported;
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		    break;
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		    }
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        }
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    //
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    return r;
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	}
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TBool DMemSpyDriverLogChanClientServer::IsHandler( TInt aFunction ) const
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    {
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    return ( aFunction > EMemSpyDriverOpCodeClientServerBase && aFunction < EMemSpyDriverOpCodeClientServerEnd );
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    }
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TInt DMemSpyDriverLogChanClientServer::GetServerSessionHandles( TMemSpyDriverInternalServerSessionHandleParams* aParams )
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	{
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    TMemSpyDriverInternalServerSessionHandleParams params;
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    TInt r = Kern::ThreadRawRead( &ClientThread(), aParams, &params, sizeof(TMemSpyDriverInternalServerSessionHandleParams) );
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    if  ( r != KErrNone )
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        {
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    	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - END - params read error: %d", r));
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        return r;
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        }
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    DMemSpyDriverOSAdaptionDServer& serverAdaption = OSAdaption().DServer();
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	const TInt maxCount = params.iMaxCount;
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    NKern::ThreadEnterCS();
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    DObject* serverHandle = (DObject*) params.iServerHandle;
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    serverHandle = CheckIfObjectIsInContainer( EMemSpyDriverContainerTypeServer, serverHandle );
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    if  ( serverHandle == NULL )
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        {
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    	Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - END - server not found");
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        NKern::ThreadLeaveCS();
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        return KErrNotFound;
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        }
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	ResetTempHandles();
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    DServer* server = (DServer*) serverHandle;
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    NKern::LockSystem();
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    r = server->Open();
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    if  ( r == KErrNone )
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   114
        {
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parents:
diff changeset
   115
        // Iterate through this server's sessions, writing back session pointer (handle)
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parents:
diff changeset
   116
        // to client
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parents:
diff changeset
   117
        SDblQue& serverQueue = serverAdaption.GetSessionQueue( *server );
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parents:
diff changeset
   118
        SDblQueLink* anchor = &serverQueue.iA;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   119
        SDblQueLink* link = serverQueue.First();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   120
        while( link != anchor )
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parents:
diff changeset
   121
        	{
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parents:
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   122
			DSession* session = serverAdaption.GetSession( link );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   123
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parents:
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   124
            // Found a match in the specified container. Write the object's handle (aka the object address)
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parents:
diff changeset
   125
            // back to the client address space
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parents:
diff changeset
   126
            if  ( session )
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parents:
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   127
                {
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diff changeset
   128
                AddTempHandle( session );
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parents:
diff changeset
   129
                }
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parents:
diff changeset
   130
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diff changeset
   131
            // Get next item
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diff changeset
   132
            link = link->iNext;
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parents:
diff changeset
   133
            }
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parents:
diff changeset
   134
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diff changeset
   135
        NKern::ThreadEnterCS();
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parents:
diff changeset
   136
        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - in CS..." ));
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parents:
diff changeset
   137
        //
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diff changeset
   138
	    Kern::SafeClose( (DObject*&) server, NULL );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   139
        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - done safe close..." ));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   140
        //
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   141
	    NKern::ThreadLeaveCS();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   142
        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - left CS" ));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   143
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   144
    else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   145
        {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   146
    	Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles - error: %d opening server", r);
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parents:
diff changeset
   147
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   148
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   149
    NKern::UnlockSystem();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   150
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parents:
diff changeset
   151
    // This variable holds the number of handles that we have already
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parents:
diff changeset
   152
	// written to the client-side.
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parents:
diff changeset
   153
	TInt currentWriteIndex = 0;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   154
	const TInt handleCount = TempHandleCount();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   155
    TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles - writing %d handles to client...", handleCount ) );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   156
    for( ; currentWriteIndex<handleCount && r == KErrNone && currentWriteIndex < maxCount; )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   157
        {
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parents:
diff changeset
   158
        TAny* handle = TempHandleAt( currentWriteIndex );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
        r = Kern::ThreadRawWrite( &ClientThread(), params.iSessionHandles + currentWriteIndex, &handle, sizeof(TAny*) );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
        if  (r == KErrNone)
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
            {
a03f92240627 Revision: 201003
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parents:
diff changeset
   162
            ++currentWriteIndex;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   163
            }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   165
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
	if  ( r == KErrBadDescriptor )
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
        {
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
        MemSpyDriverUtils::PanicThread( ClientThread(), EPanicBadDescriptor );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
        }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   170
    else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
        {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   172
        const TInt finalWrite = Kern::ThreadRawWrite( &ClientThread(), params.iSessionCountPtr, &currentWriteIndex, sizeof(TInt) );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
        if  ( r == KErrNone )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
            {
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diff changeset
   175
            r = finalWrite;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
            }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   178
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
	NKern::ThreadLeaveCS();
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parents:
diff changeset
   180
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   181
	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionHandles() - END - r: %d", r));
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diff changeset
   182
	return r;
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parents:
diff changeset
   183
    }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
TInt DMemSpyDriverLogChanClientServer::GetServerSessionInfo( TAny* aSessionHandle, TMemSpyDriverServerSessionInfo* aParams )
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parents:
diff changeset
   187
    {
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parents:
diff changeset
   188
    TMemSpyDriverServerSessionInfo params;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
    TInt r = Kern::ThreadRawRead( &ClientThread(), aParams, &params, sizeof(TMemSpyDriverServerSessionInfo) );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
    if  ( r != KErrNone )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
        {
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
    	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - END - params read error: %d", r));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
        return r;
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parents:
diff changeset
   194
        }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
    DMemSpyDriverOSAdaptionDSession& sessionAdaption = OSAdaption().DSession();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
    DMemSpyDriverOSAdaptionDThread& threadAdaption = OSAdaption().DThread();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
    DMemSpyDriverOSAdaptionDProcess& processAdaption = OSAdaption().DProcess();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
	NKern::ThreadEnterCS();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
    DObject* sessionHandle = (DObject*) aSessionHandle;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
    sessionHandle = CheckIfObjectIsInContainer( EMemSpyDriverContainerTypeSession, sessionHandle );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
    if  ( sessionHandle == NULL )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
        {
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
    	Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - END - session not found");
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
        NKern::ThreadLeaveCS();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
        return KErrNotFound;
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parents:
diff changeset
   209
        }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
    DSession* session = (DSession*) sessionHandle;
a03f92240627 Revision: 201003
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parents:
diff changeset
   212
    session->FullName( params.iName );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
    NKern::LockSystem();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
    r = session->Open();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
    if  ( r == KErrNone )
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parents:
diff changeset
   217
        {
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parents:
diff changeset
   218
        // Get owner type and id
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
        DObject* sessionOwner = sessionAdaption.GetOwner( *session );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
        if  ( sessionOwner )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
            {
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parents:
diff changeset
   222
            const TObjectType objectType = sessionAdaption.GetObjectType( *sessionOwner );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
            if  ( objectType == EProcess )
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parents:
diff changeset
   224
                {
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parents:
diff changeset
   225
                DProcess* sessionProcess = (DProcess*) sessionOwner;
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                //
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                params.iOwnerId = processAdaption.GetId( *sessionProcess );
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                params.iOwnerType = TMemSpyDriverServerSessionInfo::EOwnerProcess;
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                }
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            else if ( objectType == EThread )
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                {
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                DThread* sessionThread = (DThread*) sessionOwner;
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                //
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                params.iOwnerId = threadAdaption.GetId( *sessionThread );
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                params.iOwnerType = TMemSpyDriverServerSessionInfo::EOwnerThread;
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                }
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            }
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        else
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            {
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            params.iOwnerId = -1;
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            params.iOwnerType = TMemSpyDriverServerSessionInfo::EOwnerNone;
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            }
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        // Other attributes
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        params.iSessionType = sessionAdaption.GetSessionType( *session );
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        params.iAddress = (TUint8*)session;
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        NKern::ThreadEnterCS();
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        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - in CS..." ));
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        //
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	    Kern::SafeClose( (DObject*&) session, NULL );
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        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - done safe close..." ));
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        //
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	    NKern::ThreadLeaveCS();
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        TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - left CS" ));
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        }
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    else
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        {
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    	Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo - error: %d opening server", r);
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        }
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    NKern::UnlockSystem();
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    if  ( r == KErrNone )
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        {
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        r = Kern::ThreadRawWrite( &ClientThread(), aParams, &params, sizeof(TMemSpyDriverServerSessionInfo) );
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        }
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	NKern::ThreadLeaveCS();
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	TRACE( Kern::Printf("DMemSpyDriverLogChanClientServer::GetServerSessionInfo() - END - r: %d", r));
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	return r;
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    }