--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wim/Scard/src/ScardMessageStack.cpp	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,303 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Handles messaging with stack
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "ScardBase.h"
+#include    "ScardMessageStack.h"
+#include    "ScardConnector.h"
+#include    "WimTrace.h"
+
+#ifdef _DEBUG // for logging
+#include    "ScardLogs.h"
+#include    <flogger.h> 
+#endif
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::CScardMessageStack
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CScardMessageStack::CScardMessageStack()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::CScardMessageStack|Begin"));
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::ConstructL()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::ConstructL|Begin"));
+    iMessages = new( ELeave ) CArrayFixFlat<TMessageHandle>( 3 );
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CScardMessageStack* CScardMessageStack::NewL()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::NewL|Begin"));
+    CScardMessageStack* self = new( ELeave ) CScardMessageStack();
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+
+    return self;
+    }
+
+    
+// Destructor
+CScardMessageStack::~CScardMessageStack()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::~CScardMessageStack|Begin"));
+    CancelAll( KScErrCancelled );
+    delete iMessages;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::CancelAll
+// Cancel all operations for this session ID.
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::CancelAll(
+    const TInt aSessionID, 
+    const TInt aReason )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::CancelAll|Begin"));
+    if ( iMessages->Count() )
+        {
+        //  First check if the message currently serviced is one of 
+        //  the cancelled ones (it requires special treatment)
+        if ( (*iMessages)[0].iSessionID == aSessionID ) 
+            {
+            CancelOne( 0, aReason );
+            }
+        //  Then pop out all the others
+        for ( TInt i( 1 ); i < iMessages->Count(); i++ ) 
+            {
+            if ( (*iMessages)[i].iSessionID == aSessionID )
+                {
+                CancelOne( i, aReason );
+                iMessages->Delete( i );
+                i--;
+                } // if
+            } // for
+        } // if
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::CancelAll
+// Cancel all messages waiting for service. Delete all others except the 
+// first one
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::CancelAll( const TInt aReason )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::CancelAll|Begin"));
+    if ( iMessages->Count() )
+        {
+        //  Just cancel the first
+        CancelOne( 0, aReason );
+    
+        //  Then pop out all the others
+        for ( TInt i( 1 ); i < iMessages->Count(); i++ )
+            {
+            CancelOne( i, aReason );
+            iMessages->Delete( i );
+            i--;
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::CancelCardOperations
+// Effectively the same as the above, except that does not cancel 
+// OpenReader commands...
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::CancelCardOperations()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::CancelCardOperations|Begin"));
+    if ( iMessages->Count() )
+        {
+        //  Just cancel the first
+        if ( iMessages->At( 0 ).iAdditionalParameter != KOpenReader )
+            {
+            CancelOne( 0, KScReaderErrNoCard );
+            }
+    
+        //  Then pop out all the others
+        for ( TInt i( 1 ); i < iMessages->Count(); i++ )
+            {
+            if ( iMessages->At( i ).iAdditionalParameter != KOpenReader )
+                {
+                CancelOne( i, KScReaderErrNoCard );
+                iMessages->Delete( i );
+                i--;
+                }
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::CancelByTimeOut
+// Cancel message by timeout
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::CancelByTimeOut( const CScardCommandTimer* aTimer )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::CancelByTimeOut|Begin"));
+#ifdef _DEBUG
+    RFileLogger::WriteFormat( KScardLogDir, KScardLogFileName, 
+        EFileLoggingModeAppend, _L( "CScardMessageStack::CancelByTimeOut\n" ) );
+#endif
+
+    if ( iMessages->Count() )
+        {
+        //  First check if the message currently serviced is the cancelled one
+        //  (it requires special treatment)
+        if ( (*iMessages)[0].iTimer == aTimer )
+            {
+            CancelOne( 0, KScErrTimeOut, EFalse );
+            return;
+            }
+
+        //  Then check out all the others
+        for ( TInt i( 1 ); i < iMessages->Count(); i++ )
+            {
+            if ( (*iMessages)[i].iTimer == aTimer )
+                {
+                CancelOne( i, KScErrTimeOut, EFalse );
+                iMessages->Delete( i );
+                return;
+                } // if
+            } // for
+        } // if
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::PushToTop
+// Push message to top
+// -----------------------------------------------------------------------------
+//
+TInt CScardMessageStack::PushToTop( const TMessageHandle& aMessage )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::PushToTop|Begin"));
+    TRAPD( err, iMessages->InsertL( 0, aMessage ) );
+    _WIMTRACE2(_L("WIM|Scard|CScardMessageStack::PushToTop|End|err=%d"), err);
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::FromTop
+// Message from top
+// -----------------------------------------------------------------------------
+//
+const TMessageHandle CScardMessageStack::FromTop()
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::FromTop|Begin"));
+    if ( !iMessages->Count() )
+        {
+        //  returns the default, which is interpreted as an error
+        TMessageHandle a;
+        return a;
+        }
+    TMessageHandle tmp = (*iMessages)[0];
+    iMessages->Delete( 0 );
+    return tmp;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::PushToBottom
+// Push message to bottom
+// -----------------------------------------------------------------------------
+//
+TInt CScardMessageStack::PushToBottom( const TMessageHandle& aMessage )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::PushToBottom|Begin"));
+    TRAPD( err, iMessages->AppendL( aMessage ) );
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::NextReservation
+// This function is called when a channel is freed. It gives priority
+// for applications who are waiting to reserve either this channel or
+// any channel
+// -----------------------------------------------------------------------------
+//
+const TMessageHandle CScardMessageStack::NextReservation( const TInt8 aChannel )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::NextReservation|Begin"));
+    TMessageHandle tmp;
+    for ( TInt i( 0 ); i < iMessages->Count(); i++ )
+        {
+        tmp = (*iMessages)[i];
+        if ( ( tmp.iAdditionalParameter & KReservation ) && 
+           ( tmp.iChannel == aChannel || tmp.iChannel == KAllChannels ) )
+            {
+            iMessages->Delete( i );
+            return tmp;
+            }
+        }
+    tmp.iSessionID = ENoSession;
+    return tmp;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::FromPositionL
+// Get message from given position
+// -----------------------------------------------------------------------------
+//
+const TMessageHandle CScardMessageStack::FromPositionL( const TInt aPosition )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::FromPositionL|Begin"));
+    __ASSERT_ALWAYS( aPosition >= 0 && aPosition < iMessages->Count(), 
+        User::Leave( KScErrBadArgument ) );
+    TMessageHandle r = iMessages->At( aPosition );
+    iMessages->Delete( aPosition );
+    return r;
+    }
+
+// -----------------------------------------------------------------------------
+// CScardMessageStack::PushToPositionL
+// Push message to given position
+// -----------------------------------------------------------------------------
+//
+void CScardMessageStack::PushToPositionL(
+    const TInt aPosition, 
+    TMessageHandle& aHandle )
+    {
+    _WIMTRACE(_L("WIM|Scard|CScardMessageStack::PushToPositionL|Begin"));
+    __ASSERT_ALWAYS( aPosition >= 0 && aPosition <= iMessages->Count(), 
+        User::Leave( KScErrBadArgument ) );
+    iMessages->InsertL( aPosition, aHandle );
+    }
+
+//  End of File