--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/connectivitylayer/isce/p2prouter_dll/src/p2pkernelchannel.cpp Fri Nov 06 17:28:23 2009 +0000
@@ -0,0 +1,642 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+*
+*/
+
+
+
+#include <nk_priv.h> // For __ASSERT_NO_FAST_MUTEX published partner
+#include <kern_priv.h> // For __ASSERT_CRITICAL published partner
+#include <dfcs.h> // For TDfc
+#include "memapi.h" // For MemApi
+
+#include "p2pkernelchannel.h" // For DP2PKernelChannel
+#include "p2proutertrace.h" // For TRACEs
+#include "p2pdefs.h" // For EP2PAmountOfProtocols
+#include "msgqueue.h" // For DMsgQueue
+#include "p2pinternaldefs.h" // For EP2P...
+
+// CONST
+const TInt KFirstParam( 0 );
+const TInt KSecondParam( 1 );
+const TInt KThirdParam( 2 );
+const TInt KDestroyChannelMsg( 0xff );
+const TInt KP2PKernelChannelMsgQueDfcPrio( 2 ); // LDD FW has one
+const TInt KP2PKernelEmptyRxQueuePrio( 1 );
+
+enum TP2PKernelChannelFaults
+ {
+ EP2PKernelChannelMemAllocFailure = 0x00,
+ EP2PKernelChannelMemAllocFailure2,
+ EP2PKernelChannelNotThreadContext,
+ EP2PKernelChannelNotThreadContext2,
+ EP2PKernelChannelNotThreadContext3,
+ EP2PKernelChannelNullParam,
+ EP2PKernelChannelNullParam2,
+ EP2PKernelChannelNullParam3,
+ EP2PKernelChannelNullParam4,
+ EP2PKernelChannelNullParam5,
+ EP2PKernelChannelNullParam6,
+ EP2PKernelChannelWrongParam,
+ EP2PKernelChannelWrongParam2,
+ EP2PKernelChannelWrongParam3,
+ EP2PKernelChannelWrongResponse,
+ EP2PKernelChannelNullPtr,
+ EP2PKernelChannelWrongRequest,
+ EP2PKernelChannelWrongRequest2,
+ EP2PKernelChannelWrongRequest3,
+ EP2PKernelChannelWrongRequest4,
+ EP2PKernelChannelOverTheLimits,
+ EP2PKernelChannelOverTheLimits2,
+ EP2PKernelChannelOverTheLimits3,
+ EP2PKernelChannelOverTheLimits4,
+ EP2PKernelChannelSameRequestTwice,
+ EP2PKernelChannelDfcAlreadyQueued,
+ EP2PKernelChannelRxBufferNotReleased,
+ };
+
+// TODO: Create a common Kernel channel FW (P2P, ISI, etc..) after APIs are locked
+
+DP2PKernelChannel::DP2PKernelChannel(
+ // None
+ ) :
+ iP2PProtocolId( EP2PAmountOfProtocols ),
+ iKernelChMsgQue( MsgQDfc, this, NULL, KP2PKernelChannelMsgQueDfcPrio )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::DP2PKernelChannel 0x%x 0x%x>" ), this, iP2PProtocolId ) );
+ iRouterIf = MP2PChRouterIf::GetIf();
+ ASSERT_RESET_ALWAYS( iRouterIf, ( EP2PKernelChannelMemAllocFailure | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ iRequests = new DP2PKernelAsyncRequests( EP2PLastAsyncRequest );
+ iRx = new DMsgQueue( KP2PLddRxQueuSize );
+ iEmptyRxDfc = new TDfc( EmptyRxDfc, this, iRouterIf->GetDfcThread( MP2PChRouterIf::EP2PDfcThread ), KP2PKernelEmptyRxQueuePrio );
+ ASSERT_RESET_ALWAYS( ( iEmptyRxDfc && iRequests && iRx ), ( EP2PKernelChannelMemAllocFailure2 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ iKernelChMsgQue.SetDfcQ( iRouterIf->GetDfcThread( MP2PChRouterIf::EP2PDfcThread ) );
+ iKernelChMsgQue.Receive();
+ C_TRACE( ( _T( "DP2PKernelChannel::DP2PKernelChannel 0x%x 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+
+DP2PKernelChannel::~DP2PKernelChannel(
+ // None
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::~DP2PKernelChannel 0x%x 0x%x>" ), this, iP2PProtocolId ) );
+ // Send channel destroyed message to complete with EFalse.
+ TThreadMessage& m=Kern::Message();
+ m.iValue = KDestroyChannelMsg;
+ m.SendReceive( &iKernelChMsgQue );
+ iP2PProtocolId = EP2PAmountOfProtocols;
+ C_TRACE( ( _T( "DP2PKernelChannel::~DP2PKernelChannel iRx 0x%x" ), iRx ) );
+ // Only modified in constructor, if not created already reseted.
+ delete iRx;
+ iRx = NULL;
+ C_TRACE( ( _T( "DP2PKernelChannel::~DP2PKernelChannel iEmptyRxDfc 0x%x" ), iEmptyRxDfc ) );
+ // Only modified in constructor, if not created already reseted.
+ iEmptyRxDfc->Cancel();
+ delete iEmptyRxDfc;
+ iEmptyRxDfc = NULL;
+ iPtrPtrToRxBuf = NULL;
+ iRouterIf = NULL;
+ C_TRACE( ( _T( "DP2PKernelChannel::~DP2PKernelChannel iRequests 0x%x" ), iEmptyRxDfc ) );
+ // Only modified in constructor, if not created already reseted.
+ delete iRequests;
+ iRequests = NULL;
+ C_TRACE( ( _T( "DP2PKernelChannel::~DP2PKernelChannel 0x%x 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+
+// Handling of the request from kernel api
+// Puts calling thread waiting until TThreadMessage::SendReceive is completed
+TInt DP2PKernelChannel::HandleRequest(
+ TThreadMessage& aMsg
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleRequest 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, aMsg.iValue ) );
+ // TODO : similar__NK_ASSERT_UNLOCKED;
+ __ASSERT_CRITICAL; // From kern_priv.h published partner
+ __ASSERT_NO_FAST_MUTEX; // From nk_priv.h published partner.
+ ASSERT_THREAD_CONTEXT_ALWAYS( ( EP2PKernelChannelNotThreadContext | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleRequest 0x%x == 0x%x " ), iP2PProtocolId, EP2PAmountOfProtocols ) );
+ TInt valueToReturn( KErrAlreadyExists );
+ // Channel is not open, either still closed or open is pending.
+ if( EP2PAmountOfProtocols <= iP2PProtocolId )
+ {
+ // Accept only open and close calls
+ switch( aMsg.iValue )
+ {
+ // Open and close calls are legal
+ case EP2PAsyncOpen:
+ case EP2PClose:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleRequest open or close 0x%x" ), this ) );
+ valueToReturn = aMsg.SendReceive( &iKernelChMsgQue );
+ break;
+ }
+ case KMaxTInt:
+ {
+ // Accept only open cancellation when channel is not open.
+ ASSERT_RESET_ALWAYS( ( KMaxTInt & aMsg.Int0() == EP2PAsyncOpen ), ( EP2PKernelChannelWrongParam3 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleRequest open cancel 0x%x" ), this ) );
+ valueToReturn = aMsg.SendReceive( &iKernelChMsgQue );
+ break;
+ }
+ default:
+ {
+ ASSERT_RESET_ALWAYS( ( 0 ), ( EP2PKernelChannelWrongParam | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ break;
+ }
+ }
+ }
+ // Channel is open.
+ else
+ {
+ // Accept all calls except open.
+ if( EP2PAsyncOpen != aMsg.iValue )
+ {
+ valueToReturn = aMsg.SendReceive( &iKernelChMsgQue );
+ }
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleRequest 0x%x 0x%x %d<" ), this, iP2PProtocolId, valueToReturn ) );
+ return valueToReturn;
+
+ }
+
+// From MP2PRouterChIf start
+// Called only in router extension thread context.
+void DP2PKernelChannel::ConnectionLost()
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::ConnectionLost 0x%x 0x%x %d %d 0x%x>" ), this, iP2PProtocolId ) );
+ EnqueChannelRequestCompleteDfc( EP2PAsyncConnectionLost, KErrNotReady );
+ ResetQueues();
+ //Closing( iP2PProtocolId );
+ C_TRACE( ( _T( "DP2PKernelChannel::ConnectionLost 0x%x 0x%x %d %d 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+
+// Called only in router extension thread context.
+void DP2PKernelChannel::EnqueChannelRequestCompleteDfc(
+ TInt aRequest,
+ TInt aStatusToComplete
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::EnqueChannelRequestCompleteDfc 0x%x 0x%x %d %d 0x%x>" ), this, iP2PProtocolId, aRequest, aStatusToComplete ) );
+ ASSERT_THREAD_CONTEXT_ALWAYS( ( EP2PKernelChannelNotThreadContext2 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ // TODO: assert router ext thread context
+ if( aRequest == EP2PAsyncOpen )
+ {
+ iP2PProtocolId = ( KErrNone == aStatusToComplete || KErrInUse == aStatusToComplete ) ? ~iP2PProtocolId : EP2PAmountOfProtocols;
+ }
+ iRequests->Complete( aRequest, aStatusToComplete );
+ C_TRACE( ( _T( "DP2PKernelChannel::EnqueChannelRequestCompleteDfc 0x%x 0x%x %d %d 0x%x<" ), this, iP2PProtocolId, aRequest, aStatusToComplete ) );
+
+ }
+
+// Called in 1...N transceivers thread context
+void DP2PKernelChannel::ReceiveMsg(
+ const TDesC8& aMessage
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::ReceiveMsg 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, &aMessage ) );
+ ASSERT_THREAD_CONTEXT_ALWAYS( ( EP2PKernelChannelNotThreadContext3 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ iRx->Add( aMessage );
+ iEmptyRxDfc->Enque();
+ C_TRACE( ( _T( "DP2PKernelChannel::ReceiveMsg 0x%x 0x%x 0x%x<" ), this, iP2PProtocolId, &aMessage ) );
+
+ }
+
+// From MP2PRouterChIf end
+
+// Internal functions
+void DP2PKernelChannel::EmptyRxDfc(
+ TAny* aPtr // self
+ )
+ {
+
+ DP2PKernelChannel& chTmp = *reinterpret_cast<DP2PKernelChannel*>( aPtr );
+ C_TRACE( ( _T( "DP2PKernelChannel::EmptyRxDfc 0x%x 0x%x>" ), &chTmp, chTmp.iP2PProtocolId ) );
+ if( chTmp.iRequests->IsPending( EP2PAsyncReceive ) && chTmp.iRx->Count() > 0 )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::EmptyRxDfc 0x%x 0x%x writing to kernel client" ), &chTmp, chTmp.iP2PProtocolId ) );
+ TDes8*& tmpWrite = *chTmp.iPtrPtrToRxBuf;
+ tmpWrite = &chTmp.iRx->Get();
+ C_TRACE( ( _T( "DP2PKernelChannel::EmptyRxDfc 0x%x 0x%x 0x%x 0x%x clientRx 0x%x " ), &chTmp, chTmp.iP2PProtocolId, chTmp.iPtrPtrToRxBuf, &chTmp.iPtrPtrToRxBuf, *chTmp.iPtrPtrToRxBuf ) );
+ chTmp.EnqueChannelRequestCompleteDfc( EP2PAsyncReceive, KErrNone );
+ }
+ else
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::EmptyRxDfc 0x%x 0x%x no receive active or no message" ), &chTmp, chTmp.iP2PProtocolId ) );
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::EmptyRxDfc 0x%x 0x%x <" ), &chTmp, chTmp.iP2PProtocolId ) );
+
+ }
+
+void DP2PKernelChannel::MsgQDfc(
+ TAny* aPtr
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::MsgQDfc>" ) ) );
+ DP2PKernelChannel* tmp = reinterpret_cast<DP2PKernelChannel*>( aPtr );
+ tmp->HandleThreadMsg( static_cast<TThreadMessage&>(*tmp->iKernelChMsgQue.iMessage ) );
+ C_TRACE( ( _T( "DP2PKernelChannel::MsgQDfc<" ) ) );
+
+ }
+
+void DP2PKernelChannel::HandleThreadMsg(
+ TThreadMessage& aMsg
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleThreadMsg 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, &aMsg ) );
+ TThreadMessage& m = ( aMsg );
+ TInt completeValue( KErrNone );
+ TBool complete( ETrue );
+ switch( m.iValue )
+ {
+ // All asynchronous requests. Return result after DFC function is run.
+ case EP2PAsyncReceive:
+ case EP2PAsyncOpen:
+ case EP2PAsyncConnectionLost:
+ {
+ // No need to check return value in async functions, completed to client from DFC.
+ HandleDfcRequest( m );
+ break;
+ }
+ // From synchronized request return the result immediately
+ case EP2PClose:
+ case EP2PAllocateBlock:
+ case EP2PDeallocateBlock:
+ case EP2PSend:
+ {
+ completeValue = HandleSyncRequest( m );
+ break;
+ }
+ case KDestroyChannelMsg:
+ {
+ completeValue = KErrNone;
+ // Don't receive anymore messages.
+ complete = EFalse;
+ break;
+ }
+ case KMaxTInt:
+ {
+ completeValue = KErrNone;
+ DoCancel( KMaxTInt, m.Int0() );
+ break;
+ }
+ default:
+ {
+ ASSERT_RESET_ALWAYS( 0, ( EP2PKernelChannelWrongRequest | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ break;
+ }
+ }
+ m.Complete( completeValue, complete );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleThreadMsg 0x%x 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+
+void DP2PKernelChannel::HandleDfcRequest(
+ TThreadMessage& aMsg
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, &aMsg ) );
+ TThreadMessage& m = ( aMsg );
+ TInt request( m.iValue );
+ ASSERT_RESET_ALWAYS( m.iArg, ( EP2PKernelChannelNullParam | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ // If request already active.
+ ASSERT_RESET_ALWAYS( EP2PLastAsyncRequest > ( request ), ( EP2PKernelChannelWrongRequest4 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ if( iRequests->IsPending( request) )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest existing 0x%x 0x%x request 0x%x" ), this, iP2PProtocolId, request ) );
+ TRACE_ASSERT_INFO( 0, ( (TUint8)iP2PProtocolId << KProtocolIdShift | (TUint8)request << KExtraInfoShift ) );
+ // Should not give same request object twice before completing the first one.
+ ASSERT_RESET_ALWAYS( 0, ( EP2PKernelChannelSameRequestTwice | static_cast<TUint8>( iP2PProtocolId ) << KProtocolIdShift | static_cast<TUint8>( request ) << KExtraInfoShift ) );
+ }
+ else
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest 0x%x 0x%x handling %d" ), this, iP2PProtocolId, request ) );
+ //NOTE! These are tight to parameter passing!!
+ TUint32* tablePtr = reinterpret_cast<TUint32*>( m.Ptr0() );
+ TInt* dfcStatus = reinterpret_cast<TInt*>( tablePtr[ 0 ] );
+ TDfc* dfc = reinterpret_cast<TDfc*>( tablePtr[ 1 ] );
+ ASSERT_RESET_ALWAYS( dfcStatus, ( EP2PKernelChannelNullParam2 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ ASSERT_RESET_ALWAYS( dfc, ( EP2PKernelChannelNullParam3 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ iRequests->SetPending( request, dfc, dfcStatus );
+ switch( request )
+ {
+ case EP2PAsyncOpen:
+ {
+ iP2PProtocolId = tablePtr[ KThirdParam ];
+ iP2PProtocolId = ~iP2PProtocolId;
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest EP2PNokiaKernelOpen 0x%x 0x%x 0x%x" ), this, iP2PProtocolId, ~iP2PProtocolId ) );
+ iRouterIf->Open( ~iP2PProtocolId, this );
+ break;
+ }
+ case EP2PAsyncReceive:
+ {
+ ASSERT_RESET_ALWAYS( !iPtrPtrToRxBuf, ( EP2PKernelChannelRxBufferNotReleased | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ iPtrPtrToRxBuf = reinterpret_cast<TDes8**>( tablePtr[ KThirdParam ] );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest EIADAsyncReceive 0x%x 0x%x 0x%x 0x%x" ), this, iP2PProtocolId, iPtrPtrToRxBuf, &iPtrPtrToRxBuf ) );
+ iEmptyRxDfc->Enque();
+ break;
+ }
+ case EP2PAsyncConnectionLost:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest EP2PAsyncConnectionLost 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ // If the connection is already lost when function is called return immediately.
+ // This might happend in between calls to ::Open and ::NotifyClose
+ if( !iRouterIf->ConnectionExist( iP2PProtocolId ) )
+ {
+ EnqueChannelRequestCompleteDfc( EP2PAsyncConnectionLost, KErrNotReady );
+ ResetQueues();
+ //Closing( iP2PProtocolId );
+ }
+ break;
+ }
+ default:
+ {
+ ASSERT_RESET_ALWAYS( 0, ( EP2PKernelChannelWrongRequest2 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ break;
+ }
+ }
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleDfcRequest 0x%x 0x%x 0x%x<" ), this, iP2PProtocolId, &aMsg ) );
+
+ }
+
+TInt DP2PKernelChannel::HandleSyncRequest(
+ TThreadMessage& aMsg
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, &aMsg ) );
+ TThreadMessage& m = ( aMsg );
+ TInt request( m.iValue );
+ ASSERT_RESET_ALWAYS( m.iArg, ( EP2PKernelChannelNullParam4 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ TInt returnValue( KErrNone );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest 0x%x 0x%x handling %d" ), this, iP2PProtocolId, request ) );
+ TUint32* tablePtr = reinterpret_cast<TUint32*>( m.Ptr0() );
+ // NOTE! values depend on the P2P Kernel API parameters
+ switch( request )
+ {
+ case EP2PClose:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest EP2PClose 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ Closing( iP2PProtocolId );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest EP2PClose 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ returnValue = KErrNone;
+ break;
+ }
+ case EP2PAllocateBlock:
+ {
+ const TInt size = *reinterpret_cast<TInt*>( tablePtr[ KFirstParam ] );
+ TDes8*& block = *(reinterpret_cast<TDes8**>( tablePtr[ KSecondParam ] ));
+ C_TRACE( ( _T( "DP2PKernelChannel:: EP2PAllocateBlock 0x%x 0x%x block 0x%x %d" ), this, iP2PProtocolId, block, size ) );
+ block = ( &MemApi::AllocBlock( size ) );
+ break;
+ }
+ case EP2PDeallocateBlock:
+ {
+ TDes8& block = *reinterpret_cast<TDes8*>( tablePtr[ KFirstParam ] );
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest EP2PAllocateBlock 0x%x 0x%x block 0x%x" ), this, iP2PProtocolId, &block ) );
+ // Needed to ensure that right channel is deleting the right block. (Could it be done otherways too?)
+ if( iPtrPtrToRxBuf )
+ {
+ if ( &block == *iPtrPtrToRxBuf )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest release 0x%x 0x%x clientRx 0x%x"), iPtrPtrToRxBuf, &iPtrPtrToRxBuf, *iPtrPtrToRxBuf ) );
+ iPtrPtrToRxBuf = NULL;
+ }
+ }
+ MemApi::DeallocBlock( block );
+ break;
+ }
+ case EP2PSend:
+ {
+ TDes8& block = *reinterpret_cast<TDes8*>( tablePtr[ KFirstParam ] );
+ C_TRACE( ( _T( "DISAKernelChannel::HandleSyncRequest EP2PSend 0x%x 0x%x block 0x%x" ), this, iP2PProtocolId, &block ) );
+ returnValue = iRouterIf->Send( block, iP2PProtocolId );
+ break;
+ }
+ default:
+ {
+ ASSERT_RESET_ALWAYS( 0, ( EP2PKernelChannelWrongRequest3 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ break;
+ }
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::HandleSyncRequest 0x%x 0x%x 0x%x %d<" ), this, iP2PProtocolId, &aMsg, returnValue ) );
+ return returnValue;
+
+ }
+
+void DP2PKernelChannel::DoCancel(
+ TInt aRequest,
+ TInt aMask )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel 0x%x 0x%x>" ), this, iP2PProtocolId ) );
+ ASSERT_RESET_ALWAYS( EP2PLastAsyncRequest > ( aMask&aRequest ), EP2PKernelChannelOverTheLimits | EDP2PKernelChannelId << KClassIdentifierShift );
+ if( iRequests->IsPending( aMask&aRequest ) )
+ {
+ switch( aMask&aRequest )
+ {
+ case EP2PAsyncOpen:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel EP2PAsyncOpen 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ ResetQueues();
+ Close( ~iP2PProtocolId );
+ break;
+ }
+ case EP2PAsyncReceive:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel EIADAsyncReceive 0x%x 0x%x ptrs 0x%x 0x%x" ), this, iP2PProtocolId, iPtrPtrToRxBuf, &iPtrPtrToRxBuf ) );
+ iPtrPtrToRxBuf = NULL;
+ break;
+ }
+ case EP2PAsyncConnectionLost:
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel EP2PAsyncConnectionLost 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ break;
+ }
+ default:
+ {
+ ASSERT_RESET_ALWAYS( 0, EP2PKernelChannelWrongRequest | EDP2PKernelChannelId << KClassIdentifierShift );
+ break;
+ }
+ }
+ EnqueChannelRequestCompleteDfc( aMask&aRequest, KErrCancel );
+ }
+ else
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel nothing to cancel 0x%x 0x%x" ), this, iP2PProtocolId ) );
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::DoCancel 0x%x 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+
+void DP2PKernelChannel::Close(
+ const TUint8 aP2PProtocolId
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::Close 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, aP2PProtocolId ) );
+ if( EP2PAmountOfProtocols != iP2PProtocolId )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::Close closing 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, aP2PProtocolId ) );
+ iRouterIf->Close( aP2PProtocolId );
+ }
+ iP2PProtocolId = EP2PAmountOfProtocols;
+ C_TRACE( ( _T( "DP2PKernelChannel::Close 0x%x 0x%x 0x%x<" ), this, iP2PProtocolId, aP2PProtocolId ) );
+
+ }
+
+void DP2PKernelChannel::Closing(
+ const TUint8 aP2PProtocolId
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::Closing 0x%x 0x%x 0x%x>" ), this, iP2PProtocolId, aP2PProtocolId ) );
+ ResetQueues();
+ for( TInt i( EP2PLastSyncRequest ); i < EP2PLastAsyncRequest; ++i )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::CancelRequests req to cancel %d" ), i ) );
+ DoCancel( KMaxTInt, i );
+ }
+ Close( iP2PProtocolId );
+ C_TRACE( ( _T( "DP2PKernelChannel::Closing 0x%x 0x%x 0x%x<" ), this, iP2PProtocolId, aP2PProtocolId ) );
+
+ }
+
+void DP2PKernelChannel::ResetQueues(
+ // None
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelChannel::ResetQueues 0x%x 0x%x>" ), this, iP2PProtocolId ) );
+ // TODO: assert router ext thread context
+ if( iRx )
+ {
+ C_TRACE( ( _T( "DP2PKernelChannel::ResetQueues 0x%x 0x%x iRx 0x%x" ), this, iP2PProtocolId, iRx ) );
+ while( iRx->Count() )
+ {
+ MemApi::DeallocBlock( iRx->Get() );
+ }
+ }
+ C_TRACE( ( _T( "DP2PKernelChannel::ResetQueues 0x%x 0x%x<" ), this, iP2PProtocolId ) );
+
+ }
+// Internal functions
+
+// Internal class
+
+DP2PKernelChannel::DP2PKernelAsyncRequests::DP2PKernelAsyncRequests(
+ const TInt aSize
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::DP2PKernelAsyncRequests size %d>" ), aSize ) );
+ iRequestLock = new NFastMutex();
+ iShDfcFunctionList = new TDfc*[ aSize ];
+ iShRequestStatusList = new TInt*[ aSize ];
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::DP2PKernelAsyncRequests<" ) ) );
+
+ }
+
+
+DP2PKernelChannel::DP2PKernelAsyncRequests::~DP2PKernelAsyncRequests()
+ {
+
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::~DP2PKernelAsyncRequests>" ) ) );
+ // Delete space reserved for the array not the contents of the array, so mem behind pointers that are not owned are not deleted.
+ delete iShDfcFunctionList;
+ delete iShRequestStatusList;
+ // Deletes lock
+ delete iRequestLock;
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::~DP2PKernelAsyncRequests<" ) ) );
+
+ }
+
+void DP2PKernelChannel::DP2PKernelAsyncRequests::SetPending(
+ const TUint aRequest,
+ TDfc* aDfc,
+ TInt* aStatus
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::SetPending %d 0x%x 0x%x>" ), aRequest, aDfc, aStatus ) );
+ ASSERT_RESET_ALWAYS( aDfc, ( EP2PKernelChannelNullParam5 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ ASSERT_RESET_ALWAYS( aStatus, ( EP2PKernelChannelNullParam5 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ ASSERT_RESET_ALWAYS( ( EP2PLastAsyncRequest > aRequest && EP2PAsyncReceive <= aRequest ), ( EP2PKernelChannelOverTheLimits2 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ // Note asserts must be done before holding the lock.
+ NKern::FMWait( iRequestLock );
+ iShDfcFunctionList[ aRequest ] = aDfc;
+ iShRequestStatusList[ aRequest ] = aStatus;
+ *iShRequestStatusList[ aRequest ] = KRequestPending;
+ NKern::FMSignal( iRequestLock );
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::SetPending %d 0x%x 0x%x<" ), aRequest, aDfc, aStatus ) );
+
+ }
+
+TBool DP2PKernelChannel::DP2PKernelAsyncRequests::IsPending(
+ const TUint aRequest
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::IsPending %d>" ), aRequest ) );
+ ASSERT_RESET_ALWAYS( ( EP2PLastAsyncRequest > aRequest && EP2PAsyncReceive <= aRequest ), ( EP2PKernelChannelOverTheLimits3 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ TBool ret( EFalse );
+ NKern::FMWait( iRequestLock );
+ ret = ( iShDfcFunctionList[ aRequest ] && iShRequestStatusList[ aRequest ] ) ? ETrue : EFalse;
+ NKern::FMSignal( iRequestLock );
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::IsPending %d %d<" ), aRequest, ret ) );
+ return ret;
+
+ }
+
+void DP2PKernelChannel::DP2PKernelAsyncRequests::Complete(
+ const TUint aRequest,
+ const TInt aStatusToComplete
+ )
+ {
+
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::Complete %d>" ), aRequest ) );
+ // Check that request is legal.
+ ASSERT_RESET_ALWAYS( ( EP2PLastAsyncRequest > aRequest && EP2PAsyncReceive <= aRequest ), ( EP2PKernelChannelOverTheLimits4 | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ NKern::FMWait( iRequestLock );
+ TDfc* completeDfc = iShDfcFunctionList[ aRequest ];
+ if( ( completeDfc && iShRequestStatusList[ aRequest ] ) )
+ {
+ // Writing straight to clients pointer. There is a risk that malfunctioning client can mess up it's own pointer, if used out side of rx dfc, but what can you do..
+ *iShRequestStatusList[ aRequest ] = aStatusToComplete;
+ ASSERT_RESET_ALWAYS( !completeDfc->Queued(), ( EP2PKernelChannelDfcAlreadyQueued | EDP2PKernelChannelId << KClassIdentifierShift ) );
+ completeDfc->Enque();
+ iShDfcFunctionList[ aRequest ] = NULL;
+ }
+ NKern::FMSignal( iRequestLock );
+ C_TRACE( ( _T( "DP2PKernelAsyncRequests::Complete %d<" ), aRequest ) );
+
+ }
+
+// Internal class
+
+// End of file.
+