userlibandfileserver/fileserver/sfat/sl_dir.cpp
changeset 43 96e5fb8b040d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/sfat/sl_dir.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,154 @@
+// Copyright (c) 1996-2009 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:
+// f32\sfat\sl_dir.cpp
+// 
+//
+
+//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+//!!
+//!! WARNING!! DO NOT edit this file !! '\sfat' component is obsolete and is not being used. '\sfat32'replaces it
+//!!
+//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+#include "sl_std.h"
+
+CFatDirCB* CFatDirCB::NewL()
+//
+// Static constructor
+//
+    {
+
+    CFatDirCB* fatDirCB=new(ELeave) CFatDirCB;
+    return fatDirCB;
+    }
+
+CFatDirCB::CFatDirCB()
+//
+// Constructor
+//
+    {
+    }
+
+CFatDirCB::~CFatDirCB()
+//
+// Destructor
+//
+    {
+    
+    delete iMatch;
+    delete iLongNameBuf;
+    }
+
+void CFatDirCB::SetDirL(const TFatDirEntry& anEntry,const TDesC& aName)
+//
+// Set the current entry to anEntryAddr
+//
+    {
+
+    __PRINT(_L("CFatDirCB::SetDirL"));  
+//  iEntryAddr=0;
+//  iPending=EFalse;
+    iEntry=anEntry;
+    iCurrentPos.iCluster= FatMount().StartCluster(iEntry);
+    iMatch=aName.AllocL();
+    if (iUidType[0]!=TUid::Null() || iUidType[1]!=TUid::Null() || iUidType[2]!=TUid::Null())
+        iMatchUid=ETrue;
+    }
+
+LOCAL_C TBool CompareUid(const TUidType& aUidTrg, const TUidType& aUidSuitor)
+//
+// Compare the suitor to the target pattern
+//
+    {
+    
+    if (aUidTrg[0]!=TUid::Null() && aUidTrg[0]!=aUidSuitor[0])
+        return(EFalse);
+    if (aUidTrg[1]!=TUid::Null() && aUidTrg[1]!=aUidSuitor[1])
+        return(EFalse);
+    if (aUidTrg[2]!=TUid::Null() && aUidTrg[2]!=aUidSuitor[2])
+        return(EFalse);
+    return(ETrue);
+    }
+
+void CFatDirCB::ReadL(TEntry &anEntry)
+//
+// Read the next entry from the directory.
+//
+    {
+
+    __PRINT(_L("CFatDirCB::ReadL"));
+    
+    FatMount().CheckStateConsistentL();
+    
+
+    Mem::FillZ(&anEntry.iType,sizeof(TUidType));
+
+    TPtr entryName(anEntry.iName.Des());
+    FOREVER
+        {
+        if (iPending)
+            entryName=(*iLongNameBuf);
+        else
+            {
+            FatMount().FindDosNameL(*iMatch,iAtt,iCurrentPos,iEntry,entryName,KErrEof);
+            FatMount().MoveToNextEntryL(iCurrentPos);
+            }
+        iPending=EFalse;
+        if (iEntry.Attributes()&~KEntryAttMaskSupported)
+            continue; // Ignore illegal entries
+        anEntry.iAtt=iEntry.Attributes();
+        anEntry.iSize=iEntry.Size();
+        anEntry.iModified=iEntry.Time(FatMount().TimeOffset() );
+    
+        if (entryName.Length()==0)
+            {
+            //  VFAT entry names are always created for UNICODE at an earlier stage
+            //  However, UNICODE builds may still encounter genuine FAT filenames through
+            //  the introduction of files created using a narrow (ASCII) build
+            TBuf8<0x20> dosName(DosNameFromStdFormat(iEntry.Name()));
+            LocaleUtils::ConvertToUnicodeL(entryName, dosName);
+            }
+        TBool matchedUid=ETrue;
+        if (iMatchUid && (anEntry.iAtt&KEntryAttDir)==EFalse)
+            {
+            if ((TUint)anEntry.iSize>=sizeof(TCheckedUid))
+                FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry);
+            if (CompareUid(iUidType,anEntry.iType)==EFalse)
+                matchedUid=EFalse;
+            }
+                    
+        if (matchedUid)
+            break;
+        }
+    if ((iAtt&KEntryAttAllowUid)==0 || (anEntry.iAtt&KEntryAttDir) || (TUint)anEntry.iSize<sizeof(TCheckedUid))
+        return;
+    if (iMatchUid==EFalse)
+        {
+        TInt r;
+        TRAP(r,FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry));
+        if(r!=KErrNone && r!=KErrCorrupt)
+            User::Leave(r);
+        }
+    }
+
+void CFatDirCB::StoreLongEntryNameL(const TDesC& aName)
+//
+// Store aName while next read is pending
+//
+    {
+
+    AllocBufferL(iLongNameBuf,aName);
+    }