sl@0: // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // f32\sfat\sl_dir.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sl@0: //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sl@0: //!!
sl@0: //!! WARNING!! DO NOT edit this file !! '\sfat' component is obsolete and is not being used. '\sfat32'replaces it
sl@0: //!!
sl@0: //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sl@0: //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sl@0: 
sl@0: #include "sl_std.h"
sl@0: 
sl@0: CFatDirCB* CFatDirCB::NewL()
sl@0: //
sl@0: // Static constructor
sl@0: //
sl@0:     {
sl@0: 
sl@0:     CFatDirCB* fatDirCB=new(ELeave) CFatDirCB;
sl@0:     return fatDirCB;
sl@0:     }
sl@0: 
sl@0: CFatDirCB::CFatDirCB()
sl@0: //
sl@0: // Constructor
sl@0: //
sl@0:     {
sl@0:     }
sl@0: 
sl@0: CFatDirCB::~CFatDirCB()
sl@0: //
sl@0: // Destructor
sl@0: //
sl@0:     {
sl@0:     
sl@0:     delete iMatch;
sl@0:     delete iLongNameBuf;
sl@0:     }
sl@0: 
sl@0: void CFatDirCB::SetDirL(const TFatDirEntry& anEntry,const TDesC& aName)
sl@0: //
sl@0: // Set the current entry to anEntryAddr
sl@0: //
sl@0:     {
sl@0: 
sl@0:     __PRINT(_L("CFatDirCB::SetDirL"));  
sl@0: //  iEntryAddr=0;
sl@0: //  iPending=EFalse;
sl@0:     iEntry=anEntry;
sl@0:     iCurrentPos.iCluster= FatMount().StartCluster(iEntry);
sl@0:     iMatch=aName.AllocL();
sl@0:     if (iUidType[0]!=TUid::Null() || iUidType[1]!=TUid::Null() || iUidType[2]!=TUid::Null())
sl@0:         iMatchUid=ETrue;
sl@0:     }
sl@0: 
sl@0: LOCAL_C TBool CompareUid(const TUidType& aUidTrg, const TUidType& aUidSuitor)
sl@0: //
sl@0: // Compare the suitor to the target pattern
sl@0: //
sl@0:     {
sl@0:     
sl@0:     if (aUidTrg[0]!=TUid::Null() && aUidTrg[0]!=aUidSuitor[0])
sl@0:         return(EFalse);
sl@0:     if (aUidTrg[1]!=TUid::Null() && aUidTrg[1]!=aUidSuitor[1])
sl@0:         return(EFalse);
sl@0:     if (aUidTrg[2]!=TUid::Null() && aUidTrg[2]!=aUidSuitor[2])
sl@0:         return(EFalse);
sl@0:     return(ETrue);
sl@0:     }
sl@0: 
sl@0: void CFatDirCB::ReadL(TEntry &anEntry)
sl@0: //
sl@0: // Read the next entry from the directory.
sl@0: //
sl@0:     {
sl@0: 
sl@0:     __PRINT(_L("CFatDirCB::ReadL"));
sl@0:     
sl@0:     FatMount().CheckStateConsistentL();
sl@0:     
sl@0: 
sl@0:     Mem::FillZ(&anEntry.iType,sizeof(TUidType));
sl@0: 
sl@0:     TPtr entryName(anEntry.iName.Des());
sl@0:     FOREVER
sl@0:         {
sl@0:         if (iPending)
sl@0:             entryName=(*iLongNameBuf);
sl@0:         else
sl@0:             {
sl@0:             FatMount().FindDosNameL(*iMatch,iAtt,iCurrentPos,iEntry,entryName,KErrEof);
sl@0:             FatMount().MoveToNextEntryL(iCurrentPos);
sl@0:             }
sl@0:         iPending=EFalse;
sl@0:         if (iEntry.Attributes()&~KEntryAttMaskSupported)
sl@0:             continue; // Ignore illegal entries
sl@0:         anEntry.iAtt=iEntry.Attributes();
sl@0:         anEntry.iSize=iEntry.Size();
sl@0:         anEntry.iModified=iEntry.Time(FatMount().TimeOffset() );
sl@0:     
sl@0:         if (entryName.Length()==0)
sl@0:             {
sl@0:             //  VFAT entry names are always created for UNICODE at an earlier stage
sl@0:             //  However, UNICODE builds may still encounter genuine FAT filenames through
sl@0:             //  the introduction of files created using a narrow (ASCII) build
sl@0:             TBuf8<0x20> dosName(DosNameFromStdFormat(iEntry.Name()));
sl@0:             LocaleUtils::ConvertToUnicodeL(entryName, dosName);
sl@0:             }
sl@0:         TBool matchedUid=ETrue;
sl@0:         if (iMatchUid && (anEntry.iAtt&KEntryAttDir)==EFalse)
sl@0:             {
sl@0:             if ((TUint)anEntry.iSize>=sizeof(TCheckedUid))
sl@0:                 FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry);
sl@0:             if (CompareUid(iUidType,anEntry.iType)==EFalse)
sl@0:                 matchedUid=EFalse;
sl@0:             }
sl@0:                     
sl@0:         if (matchedUid)
sl@0:             break;
sl@0:         }
sl@0:     if ((iAtt&KEntryAttAllowUid)==0 || (anEntry.iAtt&KEntryAttDir) || (TUint)anEntry.iSize<sizeof(TCheckedUid))
sl@0:         return;
sl@0:     if (iMatchUid==EFalse)
sl@0:         {
sl@0:         TInt r;
sl@0:         TRAP(r,FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry));
sl@0:         if(r!=KErrNone && r!=KErrCorrupt)
sl@0:             User::Leave(r);
sl@0:         }
sl@0:     }
sl@0: 
sl@0: void CFatDirCB::StoreLongEntryNameL(const TDesC& aName)
sl@0: //
sl@0: // Store aName while next read is pending
sl@0: //
sl@0:     {
sl@0: 
sl@0:     AllocBufferL(iLongNameBuf,aName);
sl@0:     }