--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetoothcommsprofiles/btpan/bnep/CSocketReader.cpp Fri Jan 15 08:13:17 2010 +0200
@@ -0,0 +1,153 @@
+// Copyright (c) 2004-2009 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:
+//
+
+/**
+ @file
+ @internalComponent
+*/
+
+#include <bluetooth/logger.h>
+#include <es_mbuf.h>
+#include "CBnepLink.h"
+#include "CSocketReader.h"
+
+#ifdef __FLOG_ACTIVE
+_LIT8(KLogComponent, LOG_COMPONENT_PAN_BNEP);
+#endif
+
+// Class CSocketReader
+
+CSocketReader::CSocketReader (RInternalSocket& aSocket, CBnepLink& aOwner)
+ : CActive(KSocketReaderPriority), iSocket(aSocket), iBnepLink(aOwner)
+ {
+ LOG_FUNC
+ CActiveScheduler::Add(this);
+ }
+
+
+/**
+Cancels any pending reads.
+@internalComponent
+*/
+CSocketReader::~CSocketReader()
+ {
+ LOG_FUNC
+ iRecvMsg.Free();
+ Cancel();
+ }
+
+
+/**
+Does not create the socket reader's buffer, as this initialised
+as a side effect of the RInternalSocket::Read(),
+which has a hardcoded buffer size for Bluetooth - Maintainer BEWARE!!!!!.
+@internalComponent
+*/
+void CSocketReader::ConstructL ()
+ {
+ LOG_FUNC
+ }
+
+
+/**
+Cancel a read.
+@internalComponent
+*/
+void CSocketReader::DoCancel ()
+ {
+ LOG_FUNC
+ iSocket.CancelRead();
+ }
+
+
+/**
+Create a socket reader.
+@internalComponent
+*/
+CSocketReader* CSocketReader::NewL (RInternalSocket& aSocket, CBnepLink& aOwner)
+ {
+ LOG_STATIC_FUNC
+ CSocketReader* self = new(ELeave) CSocketReader(aSocket, aOwner);
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+
+/**
+Queue a read.
+@internalComponent
+*/
+void CSocketReader::Read ()
+ {
+ LOG_FUNC
+ LOG1(_L8("Reader 0x%08x -- queueing read"), this);
+ if (!IsActive())
+ {
+ // Ensure that the MBufChain that we are receiving into is available
+ // by free-ing any data currently in it.
+ iRecvMsg.Free();
+
+ // As RMBufChain is essentially a pointer, the data returned must be consumed
+ // later either by re-assigning or by free-ing it. This is a bit unlike a
+ // real RSocket, where the descriptor is simply overwritten.
+ iSocket.Read(iRecvMsg, iStatus);
+ SetActive();
+ }
+ else
+ {
+ LOG(_L8("Read queued but reader already active. Discarding"));
+ }
+ }
+
+
+/**
+Read complete.
+Pass the received data up to the BNEP link, and signal disconnections.
+
+This method effectively triggers a long sequence of synchronous calls
+into BNEP that culminate either in the completion of packet processing
+or an asynchronous hiatus while waiting for the agent to respond to a
+request.
+@internalComponent
+*/
+void CSocketReader::RunL ()
+ {
+ LOG_FUNC
+
+ // Save iStatus value to allow us to queue a new read prior to finishing processing
+ // this one
+ TInt err = iStatus.Int();
+ LOG2(_L8("Length %d error %d"),iRecvMsg.Length(), err);
+
+ if (iRecvMsg.Length()) // send any data up
+ {
+ // This is what kicks off the long processing
+ // sequence that may culminate in a write.
+ // Note that this call may cause calls back down to CSocketReader
+ iBnepLink.ReadComplete(iRecvMsg);
+ LOG1(_L8("After ReadComplete Length %d"),iRecvMsg.Length());
+ }
+
+ if (err != KErrNone) // if the connection has failed for some reason
+ {
+ LOG(_L8("Attempting a remote device disconnect"));
+
+ // Cancel any new read queued
+ Cancel();
+ iBnepLink.RemoteDeviceDisconnect(err); // then notify the upper layer of the disconnect
+ }
+ }