--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/dataproviders/dputility/src/cmtpgetpartialobject.cpp Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,162 @@
+// Copyright (c) 2006-2009 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:
+//
+
+#include <f32file.h>
+
+#include <mtp/cmtptypefile.h>
+#include <mtp/cmtpobjectmetadata.h>
+#include <mtp/mmtpdataproviderframework.h>
+#include <mtp/mmtpobjectmgr.h>
+#include <mtp/mmtpstoragemgr.h>
+#include <mtp/mtpprotocolconstants.h>
+#include <mtp/tmtptyperequest.h>
+
+#include "cmtpgetpartialobject.h"
+#include "mtpdppanic.h"
+
+// Class constants.
+__FLOG_STMT(_LIT8(KComponent,"GetObject");)
+
+/**
+Verification data for the GetNumObjects request
+*/
+const TMTPRequestElementInfo KMTPGetPartialObjectPolicy[] =
+ {
+ {TMTPTypeRequest::ERequestParameter1, EMTPElementTypeObjectHandle, EMTPElementAttrFile, 0, 0, 0}
+ };
+
+/**
+Two-phase construction method
+@param aPlugin The data provider plugin
+@param aFramework The data provider framework
+@param aConnection The connection from which the request comes
+@return a pointer to the created request processor object
+*/
+EXPORT_C MMTPRequestProcessor* CMTPGetPartialObject::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)
+ {
+ CMTPGetPartialObject* self = new (ELeave) CMTPGetPartialObject(aFramework, aConnection);
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+/**
+Destructor
+*/
+EXPORT_C CMTPGetPartialObject::~CMTPGetPartialObject()
+ {
+ __FLOG(_L8("~CMTPGetPartialObject - Entry"));
+ delete iFileObject;
+ __FLOG(_L8("~CMTPGetPartialObject - Exit"));
+ __FLOG_CLOSE;
+ }
+
+/**
+Standard c++ constructor
+*/
+CMTPGetPartialObject::CMTPGetPartialObject(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection) :
+ CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPGetPartialObjectPolicy)/sizeof(TMTPRequestElementInfo), KMTPGetPartialObjectPolicy)
+ {
+
+ }
+
+/**
+Second-phase constructor.
+*/
+void CMTPGetPartialObject::ConstructL()
+ {
+ __FLOG_OPEN(KMTPSubsystem, KComponent);
+ __FLOG(_L8("ConstructL - Entry"));
+ __FLOG(_L8("ConstructL - Exit"));
+ }
+
+/**
+Check the GetPartialObject reqeust
+@return EMTPRespCodeOK if the request is good, otherwise, one of the error response codes
+*/
+TMTPResponseCode CMTPGetPartialObject::CheckRequestL()
+ {
+ __FLOG(_L8("CheckRequestL - Entry"));
+ TMTPResponseCode result = CMTPRequestProcessor::CheckRequestL();
+ if(result == EMTPRespCodeOK)
+ {
+ TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);
+ iOffset = Request().Uint32(TMTPTypeRequest::ERequestParameter2);
+ iLength = Request().Uint32(TMTPTypeRequest::ERequestParameter3);
+
+ //does not take ownership
+ iObjectInfo = iRequestChecker->GetObjectInfo(objectHandle);
+ if (!iObjectInfo)
+ {
+ // The object handle has already been checked, so an invalid handle can
+ // only occur if it was invalidated during a context switch between
+ // the validation time and now.
+ result = EMTPRespCodeInvalidObjectHandle;
+ }
+ else
+ {
+ TEntry fileEntry;
+ User::LeaveIfError(iFramework.Fs().Entry(iObjectInfo->DesC(CMTPObjectMetaData::ESuid), fileEntry));
+
+ if((iOffset >= fileEntry.iSize))
+ {
+ result = EMTPRespCodeInvalidParameter;
+ }
+ }
+ }
+
+ __FLOG(_L8("CheckRequestL - Exit"));
+ return result;
+ }
+
+/**
+GetObject request handler
+*/
+void CMTPGetPartialObject::ServiceL()
+ {
+ __FLOG(_L8("ServiceL - Entry"));
+
+ if (!iObjectInfo)
+ {
+ SendResponseL(EMTPRespCodeInvalidObjectHandle);
+ }
+ else
+ {
+ delete iFileObject;
+ iFileObject = CMTPTypeFile::NewL(iFramework.Fs(), iObjectInfo->DesC(CMTPObjectMetaData::ESuid), EFileRead, iLength, iOffset);
+ SendDataL(*iFileObject);
+ }
+
+ __FLOG(_L8("ServiceL - Exit"));
+ }
+
+/**
+Handle the response phase of the current request
+@return EFalse
+*/
+TBool CMTPGetPartialObject::DoHandleResponsePhaseL()
+ {
+ __FLOG(_L8("DoHandleResponsePhaseL - Entry"));
+ __ASSERT_DEBUG(iFileObject, Panic(EMTPDpObjectNull));
+
+ TUint32 dataLength = iFileObject->GetByteSent();
+ SendResponseL(EMTPRespCodeOK, 1, &dataLength);
+
+ __FLOG(_L8("DoHandleResponsePhaseL - Exit"));
+ return EFalse;
+ }
+
+