smsprotocols/smsstack/gsmu/src/gsmustor.cpp
changeset 0 3553901f7fa8
child 5 7ef16719d8cb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smsprotocols/smsstack/gsmu/src/gsmustor.cpp	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,839 @@
+// Copyright (c) 1999-2009 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:
+// Implements the classes TSAREntry and CSmsSARStore
+// 
+//
+
+/**
+ @file
+*/
+
+#include <e32svr.h>
+
+#include "gsmustor.h"
+#include "Gsmumain.h"
+
+const TDriveNumber KStoreDrive = EDriveC;
+_LIT(KStoreSubDir, "sms\\");
+
+
+/**
+ *  Utility func for cleanup stack - close the filestore and set pointer to NULL
+ */
+void CSARStoreCloseObject(TAny* aObj)
+    {
+    LOGGSMU2("WARNING! Hey, CSARStoreCloseObject called by Untrapper! [0x%08x]", aObj);
+    ((CSARStore*)aObj)->Revert();
+    }
+
+//
+// implementation of TSAREntry
+//
+
+
+/**
+ *  Constructor
+ *  
+ *  @capability None
+ */
+EXPORT_C TSAREntry::TSAREntry():
+	iReference(0),
+	iTotal(0),
+	iCount(0),
+	iData1(0),
+	iData2(0),
+	iData3(0),
+	iData4(0),
+	iDataStreamId(KNullStreamId),
+	iFlags(0)
+	{
+	} // TSAREntry::TSAREntry
+
+
+/**
+ *  Internalises the object.
+ *  
+ *  @param aStream Stream to read from
+ *  @capability None
+ */
+EXPORT_C void TSAREntry::InternalizeL(RReadStream& aStream)
+	{
+	iReference=aStream.ReadInt32L();
+	iTotal=aStream.ReadInt32L();
+	iCount=aStream.ReadInt32L();
+	iData1=aStream.ReadInt32L();
+	iData2=aStream.ReadInt32L();
+	iData3=aStream.ReadInt32L();
+	iData4=aStream.ReadInt32L();
+	aStream >> iDescription1;
+	aStream >> iDescription2;
+	TInt64 time;
+	aStream >> time;
+	iTime=time;
+	aStream >> iDataStreamId;
+	} // TSAREntry::InternalizeL
+
+
+/**
+ *  Externalises the object.
+ *  
+ *  @param aStream Stream to write to
+ *  @capability None
+ */
+EXPORT_C void TSAREntry::ExternalizeL(RWriteStream& aStream) const
+	{
+	aStream.WriteInt32L(iReference);
+	aStream.WriteInt32L(iTotal);
+	aStream.WriteInt32L(iCount);
+	aStream.WriteInt32L(iData1);
+	aStream.WriteInt32L(iData2);
+	aStream.WriteInt32L(iData3);
+	aStream.WriteInt32L(iData4);
+	aStream << iDescription1;
+	aStream << iDescription2;
+	aStream << Time().Int64();
+	aStream << iDataStreamId;
+	} // TSAREntry::ExternalizeL
+
+
+//
+// implementation of CSARStore
+//
+
+
+/**
+ *  Opens a specified SAR store.
+ *  
+ *  A SAR filestore has has three uids, KPermanentFileStoreLayoutUid, KSARStoreUid
+ *  (which designates that the file store is a SAR store) and a third UID, that
+ *  identifies the particular implementation of CSARStore.
+ *  
+ *  @param aFullName Name for the segmentation and reassembly filestore
+ *  @param aThirdUid Third UID for the filestore.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::OpenL(const TDesC& aFullName, const TUid& aThirdUid)
+	{
+#ifdef _SMS_LOGGING_ENABLED
+	TBuf8<80> buf8;
+	buf8.Copy(aFullName);
+	LOGGSMU2("CSARStore::OpenL(): '%S'", &buf8);
+#endif
+
+	// sanity check
+	__ASSERT_DEBUG(iFileStore==NULL,Panic(KGsmuPanicSARStoreAlreadyOpen));
+	__ASSERT_DEBUG(!iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+	__ASSERT_DEBUG(iEntryArray.Count()==0,Panic(KGsmuPanicSARStoreEntryArrayNotReset));
+	iFullName.Set(aFullName);
+	iThirdUid = aThirdUid;
+
+	// first opening we have to Internalize
+	DoOpenL();
+ 	// defect fix for EDNJJUN-4WYJGP
+ 	// Unable to send sms cause sms*.dat is corrupted
+ 	// TODO - has to be back ported to higher versions
+ 	TRAPD(ret, InternalizeEntryArrayL());
+	if (ret != KErrNone)
+		{
+		LOGGSMU2("WARNING: InteralizeEntryArrayL left with %d", ret);
+		}
+
+ 	if(ret == KErrCorrupt || ret == KErrEof || ret == KErrNotFound)
+	 	{
+ 		Close();             //because the file is in use
+		User::LeaveIfError(iFs.Delete(iFullName));
+		DoOpenL();
+ 		}
+	else
+		User::LeaveIfError(ret);
+	} // CSARStore::OpenL
+
+
+/**
+ *  Commits a transaction to the filestore.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::CommitTransactionL()
+// This function does the real work of updating the filestore
+	{
+    LOGGSMU4("CSARStore::CommitTransactionL(): this=0x%08X iInTransaction=%d iFileStore=0x%08X",
+    		 this, iInTransaction, iFileStore);
+
+	__ASSERT_DEBUG(iFileStore!=NULL, Panic(KGsmuPanicSARStoreNotOpen));
+	__ASSERT_DEBUG(iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+
+#ifdef _SMS_LOGGING_ENABLED
+	TRAPD(err, DoCommitAndCompactL());
+	if (err != KErrNone)
+		{
+		LOGGSMU2("WARNING! could not CommitL/CompactL due to %d", err);
+		User::Leave(err);
+		}
+#else
+	DoCommitAndCompactL();
+#endif
+
+	//TODO AA: What should we do if err == KErrCorrupt?
+
+	CleanupStack::Pop(this);
+	iInTransaction = EFalse;
+
+	RemoveDeletedEntries();
+	} // CSARStore::CommitTransactionL
+
+
+/**
+ *  Closes the file store.
+ *  
+ *  The function deletes the file store object and resets the entry array. It
+ *  should be called once when the protocol module is closing down.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::Close()
+	{
+#ifdef _SMS_LOGGING_ENABLED
+	TBuf8<80> buf8;
+	buf8.Copy(iFullName);
+	LOGGSMU2("CSARStore::Close(): '%S'", &buf8);
+#endif
+
+	__ASSERT_DEBUG(!iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+
+	delete iFileStore;
+	iFileStore=NULL;
+	iEntryArray.Reset();
+	} // CSARStore::Close
+
+
+/**
+ *  Gets a const reference to the entry array.
+ *  
+ *  @return Entry array
+ *  @capability None
+ */
+EXPORT_C const CArrayFix<TSAREntry>& CSARStore::Entries() const
+	{
+	return iEntryArray;
+	} // CSARStore::Entries
+
+
+/**
+ *  Purges the reassembly file store.
+ *  
+ *  After a multipart message, it delete all the old entries.
+ *  
+ *  Entries will be purged when: 1) The complete message is received; 2) After
+ *  aTimerintervalMinutes, if aPurgeIncompletely is false.
+ *  
+ *  PurgeL() will be called after the booting of the device or when a message
+ *  has been received.
+ *  
+ *  This function opens and closes the file automatically.
+ *  
+ *  Note: overload function for segmentation store.
+ *  
+ *  @param aTimeIntervalMinutes Purge time
+ *  @param aPurgeIncompleteOnly Purge complete messages flag
+ *  @capability None
+ */
+EXPORT_C void CSARStore::PurgeL(const TTimeIntervalMinutes& aTimeIntervalMinutes,
+								TBool aPurgeIncompleteOnly)
+//
+// TODO ahe - performance filestore / sms
+// In many cases the files will be opened and closed but no entry will be deleted.
+// Conclusion:
+// 1) only open, close, externalize and compact the file when an entry
+//    really shall be deleted
+// 2) Compact the file after purging, only compact it here
+// 3) Only purge the segmentation store if the send queue is empty
+//    and only purge the reassembly store when the receiv queue is full
+//
+// TODO ahe - for last release -
+// message can be lost during crash: this issue has to be redesigned but
+// after the reboot of the device the information in the stores could be lost
+// due to purging or compacting - a single pdu always gets lost due to not
+// storing it in the reassembly store.
+//
+	{
+	LOGGSMU3("CSARStore::PurgeL(): aTimeIntervalMinutes=%d, aPurgeIncompleteOnly=%d",
+			 aTimeIntervalMinutes.Int(), aPurgeIncompleteOnly);
+
+	// TODO - flag
+	// we could also save the call of the method from the consruction of the smsprot
+	if( aPurgeIncompleteOnly )
+		return;
+
+	TInt count=iEntryArray.Count();
+	LOGGSMU2("CSARStore::PurgeL(): count=%d", count);
+
+	TTime time;
+	time.UniversalTime();
+
+	// we open the file outside the loop
+	// to save some CPU
+	BeginTransactionLC();
+	for (TInt i=count-1; i>=0; i--)
+		{
+		TSAREntry entry=iEntryArray[i];
+		if (((time>(entry.Time()+aTimeIntervalMinutes)) && !aPurgeIncompleteOnly ))
+			// TODO - flag
+			// check the logic o the aPurgeIncompleteOnly flg
+			// don't purge the store if the entry is complete
+			// entry.IsComplete()  )
+			{
+			DoDeleteEntryL(i);
+			}
+		}
+	ExternalizeEntryArrayL();
+	CommitTransactionL();
+	} // CSARStore::PurgeL
+
+
+/**
+ *  Purges the segmentation store.
+ *  
+ *  This purges the filestore after a multipart message, deleting all the old
+ *  entries.
+ *  
+ *  This function opens and closes the file automatically.
+ *  
+ *  @param aKSegmentationLifetimeMultiplier The coefficient for calculating whether
+ *  a message should be purged
+ *  @param aPurgeIncompleteOnly Set to false to purge all entries. Set to true
+ *  to purge incomplete messages only.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::PurgeL(TInt aKSegmentationLifetimeMultiplier,TBool aPurgeIncompleteOnly)
+	{
+	LOGGSMU3("CSARStore::PurgeL(): aKSegmentationLifetimeMultiplier=%d, aPurgeIncompleteOnly=%d",
+			 aKSegmentationLifetimeMultiplier, aPurgeIncompleteOnly);
+
+	TInt count=Entries().Count();
+	LOGGSMU2("CSARStore::PurgeL(): count=%d", count);
+	TTime time;
+	time.UniversalTime();
+
+	// we open the file outside the loop
+	// to save some CPU
+	BeginTransactionLC();
+	TInt numDeletedEntry = 0;
+	
+	for (TInt i=count-1; i>=0; i--)
+		{
+		const TSmsSegmentationEntry& entry = (const TSmsSegmentationEntry&)Entries()[i];
+		const TTimeIntervalMinutes lifetime((entry.ValidityPeriod()*aKSegmentationLifetimeMultiplier)/1000);
+		//
+		// AEH: Defect fix for EDNPAHN-4WADW3 'Unreliable logging'
+		//
+		//      This should solve the problem with agressive PurgeL algorithm
+		//      deleting PDUs which are waiting for Status Reports.
+		//      Extra bit in TSAREntry indicating Status Reports.
+		//      if we don't expect a status report, fake the
+		//      number of delivered and failed to be equal
+		//      to Total.
+		//
+
+		const TBool have_sr = entry.ExpectStatusReport();
+
+		const TInt deliv_n_failed = have_sr
+		  ? entry.Delivered() + entry.Failed() // total acked PDUs
+		  : entry.Total();                     // fake
+
+		if (
+			(entry.IsComplete() && (deliv_n_failed >= entry.Total()))
+			||
+			((time>(entry.Time()+lifetime)) && !aPurgeIncompleteOnly )
+			)
+			{
+			DoDeleteEntryL(i);
+			++numDeletedEntry;
+			}
+		}
+	
+	TInt numOldestEntry = 0;
+	if(iMaxmumNumberOfMessagesInSegmentationStore > 0)
+		{
+		while((count - numDeletedEntry) > iMaxmumNumberOfMessagesInSegmentationStore)
+			{ // The number of messages in the store is greater than the allowed number. Find&Delete the oldest one.
+			  // If the maximum number of messages is set to o, we don't delete any messages.
+			while (Entries()[numOldestEntry].IsDeleted())
+				{ // Find oldest entry that has not been deleted already
+				++numOldestEntry;
+				}
+			DoDeleteEntryL(numOldestEntry++);
+			++numDeletedEntry;
+			}
+		}
+	    
+	ExternalizeEntryArrayL();
+	CommitTransactionL();
+	LOGGSMU1("CSmsSegmentationStore::PurgeL End");
+	} // CSARStore::PurgeL
+
+
+/**
+ *  Deletes an entry from the entry array, and externalizes it.
+ *  
+ *  The file store must be open before calling this function.
+ *  
+ *  @param aIndex Entry in the SAR store to delete
+ *  @capability None
+ */
+EXPORT_C void CSARStore::DeleteEntryL(TInt aIndex)
+	{
+	LOGGSMU2("CSARStore::DeleteEntryL(): aIndex=%d", aIndex);
+
+	DoDeleteEntryL(aIndex);
+	ExternalizeEntryArrayL();
+	} // CSARStore::DeleteEntryL
+
+
+/**
+ *  Constructor, initialises class members only.
+ *  
+ *  @param aFs File system handle
+ *  @capability None
+ */
+EXPORT_C CSARStore::CSARStore(RFs& aFs)
+    :iFs(aFs)
+    ,iEntryArray(8)
+    {
+    } // CSARStore::CSARStore
+
+
+/**
+ *  Destructor. Frees resource.
+ *  @capability None
+ */
+EXPORT_C CSARStore::~CSARStore()
+    {
+	delete iFileStore;
+    } // CSARStore::CSARStore
+
+
+/**
+ *  Gets a reference to the filestore.
+ *  
+ *  @return The filestore
+ *  @capability None
+ */
+EXPORT_C CFileStore& CSARStore::FileStore()
+	{
+	LOGGSMU1("CSARStore::FileStore()");
+
+	__ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+	return *iFileStore;
+	} // CSARStore::FileStore
+
+
+/**
+ *  Gets a (const) reference to the filestore.
+ *  
+ *  @return The filestore
+ *  @capability None
+ */
+EXPORT_C const CFileStore& CSARStore::FileStore() const
+    {
+    // Ignore in code coverage - not used in SMS stack.
+    BULLSEYE_OFF
+    LOGGSMU1("CSARStore::FileStore()");
+    __ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+    return *iFileStore;
+    BULLSEYE_RESTORE
+    }
+
+/**
+ *  Adds a new entry to the file store.
+ *  
+ *  The function appends the new entry to the internal entry array, and then externalises
+ *  it.
+ *  
+ *  The file store must be open before calling this function.
+ *  
+ *  @param aEntry SAR entry to add
+ *  @capability None
+ */
+EXPORT_C void CSARStore::AddEntryL(const TSAREntry& aEntry)
+	{
+	LOGGSMU1("CSARStore::AddEntryL()");
+
+	__ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+	__ASSERT_DEBUG(aEntry.DataStreamId()!=KNullStreamId,Panic(KGsmuPanicSAREntryDataStreamIdNotSet));
+	iEntryArray.AppendL(aEntry);
+	iEntryArray[iEntryArray.Count()-1].SetIsAdded(ETrue);
+	ExternalizeEntryArrayL();
+	} // CSARStore::AddEntryL
+
+
+/**
+ *  Changes an entry in the file store - changes it first in the internal
+ *  entry array, and then externalizes it.
+ *  
+ *  The file store must be open before calling this function.
+ *  
+ *  @param aIndex The index into the SAR store to be changed
+ *  @param aNewEntry The new SAR store entry
+ *  @capability None
+ */
+EXPORT_C void CSARStore::ChangeEntryL(TInt aIndex,const TSAREntry& aNewEntry)
+	{
+	LOGGSMU2("CSARStore::ChangeEntryL(): aIndex=%d", aIndex);
+
+	__ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+	__ASSERT_DEBUG(iEntryArray[aIndex].DataStreamId()==aNewEntry.DataStreamId(),Panic(KGsmuPanicSAREntryDataStreamIdChanged));
+
+	iEntryArray[aIndex].SetIsDeleted(ETrue);
+	iEntryArray.InsertL(aIndex,aNewEntry);
+	iEntryArray[aIndex].SetIsAdded(ETrue);
+
+	ExternalizeEntryArrayL();
+	} // CSARStore::ChangeEntryL
+
+
+/**
+ *  Gets the extra stream ID.
+ *  
+ *  @return Extra stream ID
+ *  @capability None
+ */
+EXPORT_C TStreamId CSARStore::ExtraStreamId() const
+	{
+	LOGGSMU1("CSARStore::ExtraStreamId");
+	return iExtraStreamId;
+	} // CSARStore::ExtraStreamId
+
+
+/**
+ *  Sets the extra stream ID - changes it first in the internal
+ *  entry array, and then externalizes it.
+ *  
+ *  You must call Close() when the function returns.
+ *  
+ *  @param aExtraStreamId Extra stream ID
+ *  @capability None
+ */
+EXPORT_C void CSARStore::SetExtraStreamIdL(const TStreamId& aExtraStreamId)
+	{
+	LOGGSMU2("CSARStore::SetExtraStreamIdL(): id=%d", aExtraStreamId.Value());
+
+	__ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+	TStreamId streamid=iExtraStreamId;
+	iExtraStreamId=aExtraStreamId;
+	TRAPD(ret, ExternalizeEntryArrayL());
+	if (ret!=KErrNone)
+		{
+		LOGGSMU2("WARNING! CSARStore::DoExternalizeEntryArrayL left with %d", ret);
+		iExtraStreamId=streamid;	//  Roll back
+		User::Leave(ret);			//  re-leave to allow caller to also roll back
+		}
+	} // CSARStore::SetExtraStreamIdL
+
+
+/**
+ *  Compacts the file store.
+ *  
+ *  This is done on every reboot and for every eighth SMS message sent, to keep
+ *  the size of the file as low as possible.
+ *  
+ *  This function opens and closes the file automatically.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::CompactL()
+	{
+    LOGGSMU1("CSARStore::CompactL Start");
+	__ASSERT_DEBUG(iFileStore!=NULL, Panic(KGsmuPanicSARStoreNotOpen));
+	__ASSERT_DEBUG(iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+
+	TInt space = iFileStore->CompactL();
+	iFileStore->CommitL();
+
+    LOGGSMU2("CSARStore::CompactL End [space=%d]", space);
+	(void)space;
+	} // CSARStore::CompactL
+
+
+/**
+ *  Sets the SAR store as in-transaction.
+ *  
+ *  The function checks the validity of the call and leaves KErrAccessDenied if
+ *  invalid.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::BeginTransactionLC()
+	{
+    LOGGSMU4("CSARStore::BeginTransactionLC [this=0x%08X iInTransaction=%d iFileStore=0x%08X]", this, iInTransaction, iFileStore);
+
+	if (iFileStore == NULL || iInTransaction)
+		{
+	    LOGGSMU1("WARNING CSARStore::BeginTransactionLC leaving with KErrAccessDenied");
+		User::Leave(KErrAccessDenied);
+		}
+
+	TCleanupItem sarClose(CSARStoreCloseObject, this);
+	CleanupStack::PushL(sarClose);
+	iInTransaction = ETrue;
+	} // CSARStore::BeginTransactionLC
+
+void CSARStore::Revert()
+	{
+    LOGGSMU3("CSARStore::Revert(): this=0x%08X, iInTransaction=%d",
+    		 this, iInTransaction);
+
+	__ASSERT_DEBUG(iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+
+	iFileStore->Revert();
+	iInTransaction = EFalse;
+	ReinstateDeletedEntries();
+	} // CSARStore::Revert
+
+
+/**
+ *  Opens a filestore.
+ *  
+ *  This is called by OpenL(), and does the work of really opening the file. If
+ *  the file is not there, it creates a new one.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::DoOpenL()
+	{
+#ifdef _SMS_LOGGING_ENABLED
+	TBuf8<80> buf8;
+	buf8.Copy(iFullName);
+	LOGGSMU3("CSARStore::DoOpenL(): '%S' this=0x%08X", &buf8, this);
+#endif
+
+	TUidType uidtype(KPermanentFileStoreLayoutUid,KSARStoreUid,iThirdUid);
+	TEntry entry;
+	TInt ret=iFs.Entry(iFullName,entry);  //  Check file exists
+	if (ret==KErrNone)  //  File found
+		{
+		if (uidtype!=entry.iType)
+			ret=KErrNotFound;
+		}
+	if (ret==KErrNone)  //  Filestore found
+		{
+		// using OpenLC puts it on the cleanup stack,
+		// so that the trap handler will close the file
+		// automatically
+		TRAP(ret,(iFileStore=CPermanentFileStore::OpenL(iFs,iFullName,EFileShareExclusive|EFileStream|EFileRead|EFileWrite)));
+		if(ret != KErrNone)
+			{
+			LOGGSMU2("WARNING! CPermanentFileStore::OpenLC left with %d", ret);
+			}
+		}
+
+	if (ret==KErrNoMemory)  //  Filestore not corrupted
+		{
+		User::Leave(ret);
+		}
+	else if (ret != KErrNone)  //  The filestore was corrupted or not found, so create a new one
+		{
+		// create a new file and push the close function on the cleanup stack,
+		// so that the trap handler will close the file automatically
+#ifdef _SMS_LOGGING_ENABLED
+		TBuf8<80> buf8;
+		buf8.Copy(iFullName);
+		LOGGSMU2("CSARStore::DoOpenL(): New file created '%S'", &buf8);
+#endif
+		TInt kerr(iFs.MkDirAll(iFullName)); //the directory may not exist, So create one.
+		if(kerr != KErrAlreadyExists)
+			{
+			User::LeaveIfError(kerr);
+			}
+		iFileStore=CPermanentFileStore::ReplaceL(iFs, iFullName,EFileShareExclusive|EFileStream|EFileRead|EFileWrite);
+		iFileStore->SetTypeL(uidtype);
+		// the file got lost so we externalize the internal
+		// representation of the data before we continue
+		BeginTransactionLC();
+		ExternalizeEntryArrayL();
+		CommitTransactionL();
+		}
+
+	__ASSERT_DEBUG(iFileStore!=NULL, Panic(KGsmuPanicSARStoreNotOpen));
+	} // CSARStore::DoOpenL
+
+
+/**
+ *  Actually delete an entry in the entry array
+ */
+void CSARStore::DoDeleteEntryL(TInt aIndex)
+	{
+#ifdef _SMS_LOGGING_ENABLED
+	const TSmsSegmentationEntry& entry = (const TSmsSegmentationEntry&)iEntryArray[aIndex];
+
+	LOGGSMU3("CSARStore::DoDeleteEntryL [aIndex=%d Count=%d]",
+			 aIndex, iEntryArray.Count());
+	LOGGSMU4("CSARStore::DoDeleteEntryL [aIndex=%d Delivered=%d Failed=%d]",
+			 aIndex, entry.Delivered(), entry.Failed());
+	LOGGSMU4("CSARStore::DoDeleteEntryL [aIndex=%d Count=%d Total=%d]",
+			 aIndex, entry.Count(), entry.Total());
+	LOGGSMU4("CSARStore::DoDeleteEntryL [aIndex=%d logId=%d StreamId=%d]",
+			 aIndex, entry.LogServerId(), entry.DataStreamId().Value());
+#endif // _SMS_LOGGING_ENABLED
+
+	__ASSERT_DEBUG(iFileStore!=NULL,Panic(KGsmuPanicSARStoreNotOpen));
+	TRAP_IGNORE(iFileStore->DeleteL(iEntryArray[aIndex].DataStreamId()));
+	iEntryArray[aIndex].SetIsDeleted(ETrue); // TODO - truth value should be set depending on ret
+	} // CSARStore::DoDeleteEntryL
+
+
+/**
+ *  internalize - read from the file store into RAM
+ */
+void CSARStore::InternalizeEntryArrayL()
+	{
+	LOGGSMU1("CSARStore::InternalizeEntryArrayL()");
+
+	__ASSERT_DEBUG(iFileStore!=NULL, Panic(KGsmuPanicSARStoreNotOpen));
+
+	TStreamId headerid=iFileStore->Root();
+	RStoreReadStream stream;
+	stream.OpenLC(*iFileStore,headerid);
+	TInt count=stream.ReadInt32L();
+	for (TInt i=0; i<count; i++)
+		{
+		TSAREntry sarentry;
+		stream >> sarentry;
+		iEntryArray.AppendL(sarentry);
+		}
+	stream >> iExtraStreamId;
+	CleanupStack::PopAndDestroy();  //  stream
+	} // CSARStore::InternalizeEntryArrayL
+
+
+void CSARStore::RemoveDeletedEntries()
+	{
+	LOGGSMU1("CSARStore::RemoveDeletedEntries()");
+
+	TInt count=iEntryArray.Count();
+	while (count--)
+		{
+		TSAREntry& entry = iEntryArray[count];
+
+		if (entry.IsDeleted())
+			iEntryArray.Delete(count);
+		else
+			entry.SetIsAdded(EFalse);
+		}
+	} // CSARStore::RemoveDeletedEntries
+
+
+void CSARStore::ReinstateDeletedEntries()
+	{
+	LOGGSMU1("CSARStore::ReinstateDeletedEntries()");
+
+	TInt count=iEntryArray.Count();
+	while (count--)
+		{
+		TSAREntry& entry = iEntryArray[count];
+
+		if (entry.IsAdded())
+			iEntryArray.Delete(count);
+		else
+			entry.SetIsDeleted(EFalse);
+		}
+	} // CSARStore::ReinstateDeletedEntries
+
+
+/**
+ *  externalize - read from RAM to the file store
+ */
+void CSARStore::ExternalizeEntryArrayL()
+	{
+	__ASSERT_DEBUG(iFileStore!=NULL, Panic(KGsmuPanicSARStoreNotOpen));
+	__ASSERT_DEBUG(iInTransaction, Panic(KGsmuPanicSARStoreTransaction));
+
+	LOGGSMU4("CSARStore::ExternalizeEntryArrayL(): this=0x%08X count=%d headerid=%d]",
+			 this, iEntryArray.Count(), iFileStore->Root().Value());
+
+	TStreamId headerid=iFileStore->Root();
+	RStoreWriteStream stream;
+	if (headerid==KNullStreamId)
+		{
+		headerid=stream.CreateLC(*iFileStore);
+		iFileStore->SetRootL(headerid);
+		}
+	else
+		{
+		stream.ReplaceLC(*iFileStore,headerid);
+		}
+
+	TInt count1=iEntryArray.Count();
+	TInt count2=0;
+	TInt i=0;
+
+	for (; i<count1; i++)
+		{
+		if (!iEntryArray[i].IsDeleted())
+			{
+			count2++;
+			}
+		}
+	stream.WriteInt32L(count2);
+	for (i=0; i<count1; i++)
+		{
+		if (!iEntryArray[i].IsDeleted())
+			{
+			stream << iEntryArray[i];
+			}
+		}
+
+	stream << iExtraStreamId;
+	stream.CommitL(); // TODO - keep this in your head
+	CleanupStack::PopAndDestroy(&stream);
+	} // CSARStore::ExternalizeEntryArrayL
+
+
+/**
+ *  called by CloseFile - always do a CommitL
+ *  and if the store is of a certains size then
+ *  call CompactL also
+ */
+void CSARStore::DoCommitAndCompactL()
+	{
+	LOGGSMU1("CSARStore::DoCommitAndCompactL()");
+
+	LOGGSMUTIMESTAMP();
+	iFileStore->CommitL();
+	LOGGSMUTIMESTAMP();
+
+	iCommitCount--;
+	if (iCommitCount < 0)
+		{
+		iCommitCount = KNumStoreCommitsBeforeCompaction;
+		iFileStore->CompactL();
+		iFileStore->CommitL();
+		}
+	} // CSARStore::DoCommitAndCompactL
+
+
+/**
+ *  Returns the private path used to open a store.
+ *  
+ *  @param aPath The private path of a store.
+ *  @capability None
+ */
+EXPORT_C void CSARStore::PrivatePath(TDes& aPath)
+	{
+	LOGGSMU1("CSARStore::PrivatePath()");
+
+	TDriveUnit driveUnit(KStoreDrive);
+	TDriveName drive=driveUnit.Name();
+	aPath.Insert(0, drive);
+	//append private path
+	TPath privatePath;
+	iFs.PrivatePath(privatePath);
+	aPath.Append(privatePath);
+	aPath.Append(KStoreSubDir);
+	} // CSARStore::PrivatePath