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// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// f32\sfile\sf_cache.cpp
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//
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//
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#include <e32std.h>
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#include <e32std_private.h>
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#include "sf_std.h"
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#include <e32uid.h>
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#include <e32wins.h>
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#include <f32file.h>
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#include "sf_cache.h"
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const TInt KMaxCachedDirectories=6;
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TInt RefreshDriveInfo();
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void DestroyCachedDirectories(TPathListRecord* aPathRec);
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void DestroyCachedDirectory(TDriveNumber aDrive, TDirectoryCacheHeader* aDirCache);
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void DestroyCachedDirectory(TDriveNumber aDrive, TPathListRecord* aPathRec);
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const TInt KCacheHeapGranularity=0x0800; // Allocate heap in 2K chunks
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TBool gInitCacheCheckDrivesAndAddNotifications = EFalse;
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TBool gCacheCheckDrives = ETrue;
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// Cache per drive
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TDriveCacheHeader* gDriveFileNamesCache[KMaxDrives];
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TPathListRecord* TPathListRecord::First;
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TPathListRecord* TPathListRecord::LastStatic;
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#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
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void dumpCache()
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{
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TDriveNumber drive;
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for (drive=EDriveA; drive<=EDriveZ; ((TInt&)drive)++)
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{
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TDriveCacheHeader* pDH = gDriveFileNamesCache[drive];
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RDebug::Printf("Dumping Drive %d", drive);
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if (!pDH)
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{
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RDebug::Printf("Drive %d not cached",drive);
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continue;
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}
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TDirectoryCacheHeader* p = pDH->iDirectoryList;
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for (; p; p=p->iNext)
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{
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RDebug::Printf(" Dumping directory %S", p->iPath->PathName());
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TFileCacheRecord** pIndexes = p->iCache;
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TInt j;
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for(j=0; j<p->iRecordCount; j++)
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{
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TFileCacheRecord& f = *pIndexes[j];
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TBuf8<20> en = _S8("Entry ");
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en.AppendNum(j);
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f.Dump((const char*)en.Ptr());
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}
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}
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}
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}
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#endif
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CCacheNotifyDirChange::CCacheNotifyDirChange(TDriveNumber aDrive, TDirectoryCacheHeader& aDirHead)
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: CActive(EPriorityHigh), iDrive(aDrive), iDirHead(&aDirHead)
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{}
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CCacheNotifyDirChange::~CCacheNotifyDirChange()
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{
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__IF_DEBUG(Printf("~CCacheNotifyDirChange"));
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Cancel();
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}
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void CCacheNotifyDirChange::DoCancel()
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{
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__IF_DEBUG(Printf("DoCancel"));
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gTheLoaderFs.NotifyChangeCancel(iStatus);
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}
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void CCacheNotifyDirChange::RunL()
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{
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__IF_DEBUG(Printf("Pop!! for drive %d path %S (%d)", iDrive, iDirHead->iPath->PathName(), iStatus.Int()));
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// unlink directory & delete it
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DestroyCachedDirectory(iDrive, iDirHead);
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gCacheCheckDrives = ETrue;
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}
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TInt CCacheNotifyDirChange::RegisterNotification(TPathListRecord* aPathRec, TNotifyType aType)
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//
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// Notification that a card has been mounted/removed
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//
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{
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TDriveUnit drive(iDrive);
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TFileName pathName(drive.Name());
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pathName.Append('\\');
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TInt dl = pathName.Length();
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const TText* ppp = pathName.Ptr() + dl;
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const TDesC8& p8 = *aPathRec->PathName();
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TInt p8l = p8.Length();
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pathName.SetLength(dl + p8l);
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TPtr pp((TText*)ppp, 0, KMaxFileName - dl);
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pp.Copy(p8);
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if (pathName[dl + p8l -1] != '\\')
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pathName.Append('\\');
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__IF_DEBUG(Printf("RegisterNotification for drive %d path %S", iDrive, &p8));
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__IF_DEBUG(Print(_L("register notification for %S"), &pathName));
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gTheLoaderFs.NotifyChange(aType, iStatus, pathName);
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SetActive();
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__LDRTRACE({ \
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if (iStatus != KRequestPending) \
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RDebug::Printf("Notifier Immediate Complete %d", iStatus.Int()); \
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});
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return KErrNone;
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}
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TInt SetupNotify(TDriveNumber aDrive, TDirectoryCacheHeader& aDirHead)
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{
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if (aDirHead.iNotify != NULL)
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{
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__IF_DEBUG(Printf("SetupNotify!! notification already registered on drive %d path %S", aDrive, aDirHead.iPath->PathName()));
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return KErrNone;
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}
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__IF_DEBUG(Printf("SetupNotify!! on drive %d path %S", aDrive, aDirHead.iPath->PathName()));
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CCacheNotifyDirChange* pNotifier = new CCacheNotifyDirChange(aDrive, aDirHead);
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if (!pNotifier)
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return KErrNoMemory;
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aDirHead.iNotify = pNotifier;
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CActiveSchedulerLoader::Add(pNotifier);
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return pNotifier->RegisterNotification(aDirHead.iPath, ENotifyFile);
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}
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TInt AddNotifications()
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{
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TDriveNumber drive;
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for (drive=EDriveA; drive<EDriveZ; ((TInt&)drive)++) // Z always read-only so no notifiers required
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{
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TDriveCacheHeader* pDH = gDriveFileNamesCache[drive];
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if (!pDH)
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continue;
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__IF_DEBUG(Printf("AddNotifications on drive %d att=0x%08x", drive, pDH->iDriveAtt));
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TDirectoryCacheHeader* p = pDH->iDirectoryList;
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for (; p; p=p->iNext)
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{
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TInt r = SetupNotify(drive, *p);
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if (r != KErrNone)
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{
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DestroyCachedDirectory(drive, p);
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return r;
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}
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}
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}
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gCacheCheckDrives = EFalse;
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return KErrNone;
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}
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//=============================== TFileCacheRecord ==================================
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//
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TInt TFileCacheRecord::Order(const TFileCacheRecord& aL, const TFileCacheRecord& aR)
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{
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return aL.Name().CompareF(aR.Name());
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}
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//=============================== TPathListRecord ==================================
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//
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#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
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void dumpPathList()
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{
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RDebug::Printf("Dumping Pathlist");
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TPathListRecord* p = TPathListRecord::First;
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TInt count=0;
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for (; p; p=p->iNext, ++count)
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RDebug::Printf("Pathlist pos %d %S",count,p->PathName());
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}
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#endif
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_LIT8(KDirSystemPrograms, "System\\Programs");
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_LIT8(KDirSystemLibs, "System\\Libs");
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_LIT8(KDirSystemBin, "System\\Bin");
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_LIT8(KDirSysBin, "Sys\\Bin");
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TInt TPathListRecord::Init()
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{
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if (!AddToPathList(KDirSysBin, ETrue))
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return KErrNoMemory;
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if(!PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
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{
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if (!AddToPathList(KDirSystemPrograms, ETrue))
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return KErrNoMemory;
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if (!AddToPathList(KDirSystemLibs, ETrue))
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return KErrNoMemory;
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if (!AddToPathList(KDirSystemBin, ETrue))
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return KErrNoMemory;
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}
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return KErrNone;
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}
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void TPathListRecord::MoveToHead()
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{
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if (iKeep || this == LastStatic->iNext)
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return;
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TPathListRecord* p = First;
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// the record is always in the list
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for (; p && p->iNext!=this; p=p->iNext) {}
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__ASSERT_DEBUG(p, User::Invariant());
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p->iNext = iNext;
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iNext = LastStatic->iNext;
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LastStatic->iNext = this;
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}
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TPathListRecord* TPathListRecord::FindPathNameInList(const TDesC8& aPath)
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{
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__IF_DEBUG(Printf("TPathListRecord::FindPathNameInList %S",&aPath));
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TPathListRecord* p = DoFindPathNameInList(aPath);
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if (!p)
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p = AddToPathList(aPath, EFalse);
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return p;
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}
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TPathListRecord* TPathListRecord::DoFindPathNameInList(const TDesC8& aPath)
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{
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// Accesses pathname list to retrieve pathname record
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TPathListRecord* p = First;
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for (; p; p=p->iNext)
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{
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if (p->PathName()->CompareF(aPath) == 0)
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{
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p->MoveToHead();
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return p;
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}
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}
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return NULL;
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}
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TPathListRecord* TPathListRecord::AddToPathList(const TDesC8& aPath, TBool aKeep)
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{
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__LDRTRACE(dumpPathList());
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__IF_DEBUG(Printf("Pathlist adding path %S keep %d",&aPath,aKeep));
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TPathListRecord* n = TPathListRecord::New(aPath, aKeep);
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if (!n)
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return NULL;
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TPathListRecord* p = First;
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TPathListRecord* q = NULL;
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TInt count = 0;
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for (; p && ++count<KMaxCachedDirectories; q=p, p=p->iNext) {}
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if (p)
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{
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// need to kill off entry pointed to by p
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__IF_DEBUG(Printf("In AddToPathList killing %S", p->PathName()));
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__ASSERT_ALWAYS(!aKeep, User::Invariant());
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q->iNext = NULL;
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DestroyCachedDirectories(p);
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delete p;
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}
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if (aKeep)
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{
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// add to front of list
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n->iNext = First;
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First = n;
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if (!LastStatic)
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LastStatic = n;
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}
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else
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{
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// add new entry to front of dynamic list
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n->iNext = LastStatic->iNext;
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LastStatic->iNext = n;
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}
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// Refresh cache now we've added a new path
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gCacheCheckDrives = ETrue;
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__LDRTRACE(dumpPathList());
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return n;
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}
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TPathListRecord* TPathListRecord::New(const TDesC8& aPath, TBool aKeep)
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{
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TInt l = aPath.Length();
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TInt size = sizeof(TPathListRecord) + Align4(l) + sizeof(TDesC8);
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TPathListRecord* p = (TPathListRecord*)User::Alloc(size);
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if (p)
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{
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p->iNext = NULL;
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p->iKeep = aKeep;
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TInt* pb = (TInt*)(p+1);
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*pb = l;
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memcpy(pb+1, aPath.Ptr(), l);
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}
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return p;
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}
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void DestroyCachedDirectory(TDriveNumber aDrive, TPathListRecord* aPathRec)
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{
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__IF_DEBUG(Printf("DestroyCachedDirectory drive=%d path=%S",aDrive,aPathRec->PathName()));
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TDriveCacheHeader* pDH = gDriveFileNamesCache[aDrive];
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TDirectoryCacheHeader* p = pDH->iDirectoryList;
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TDirectoryCacheHeader* q = 0;
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for (; p && p->iPath!=aPathRec; q=p, p=p->iNext) {}
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if (p)
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{
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__IF_DEBUG(Printf(" unlinking directory %S",p->iPath->PathName()));
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if (q)
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q->iNext = p->iNext;
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else
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pDH->iDirectoryList = p->iNext;
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__IF_DEBUG(Printf(" deleting directory %S",p->iPath->PathName()));
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delete p;
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}
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}
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void DestroyCachedDirectory(TDriveNumber aDrive, TDirectoryCacheHeader* aDirCache)
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{
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// First see if it contained in our list
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__IF_DEBUG(Printf("DestroyCachedDirectory drive=%d path=%S", aDrive, aDirCache->iPath->PathName()));
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TDriveCacheHeader* pDH = gDriveFileNamesCache[aDrive];
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TDirectoryCacheHeader* p = pDH->iDirectoryList;
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TDirectoryCacheHeader* q = 0;
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for (; p && p!=aDirCache; q=p, p=p->iNext) {}
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if (p)
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{
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__IF_DEBUG(Printf(" unlinking directory %S",p->iPath->PathName()));
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if (q)
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q->iNext = p->iNext;
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else
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pDH->iDirectoryList = p->iNext;
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}
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__IF_DEBUG(Printf(" deleting directory %S", aDirCache->iPath->PathName()));
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delete aDirCache;
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}
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void DestroyCachedDirectories(TPathListRecord* aPathRec)
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{
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__IF_DEBUG(Printf("DestroyCachedDirectories %S",aPathRec->PathName()));
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TDriveNumber drive;
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for (drive=EDriveA; drive<=EDriveZ; ((TInt&)drive)++)
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{
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TDriveCacheHeader* pDH = gDriveFileNamesCache[drive];
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if (pDH)
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{
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__IF_DEBUG(Printf("DestroyCachedDirectories drive=%d driveatt=0x%08x",drive,pDH->iDriveAtt));
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DestroyCachedDirectory(drive, aPathRec);
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}
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}
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}
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//=============================== TCacheHeapList ==================================
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//
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TCacheHeapList::TCacheHeapList(TInt aSize)
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: iAllocated(Align4(sizeof(TCacheHeapList))),
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iSize(aSize)
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{}
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TAny* TCacheHeapList::Allocate(TInt aBytes)
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{
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__IF_DEBUG(Printf("TCacheHeapList::Allocate used=%d request=%d",iAllocated,aBytes));
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TInt req = Align4(aBytes);
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if (iAllocated+req > iSize)
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return NULL;
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TAny* p = PtrAdd(this, iAllocated);
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iAllocated+=req;
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return p;
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}
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//=============================== TDriveCacheHeader==================================
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//
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TDriveCacheHeader::TDriveCacheHeader()
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: iDirectoryList(NULL)
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{}
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TDriveCacheHeader::~TDriveCacheHeader()
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{
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__IF_DEBUG(Printf("~TDriveCacheHeader"));
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while (iDirectoryList)
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{
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TDirectoryCacheHeader* p = iDirectoryList;
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iDirectoryList = p->iNext;
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__IF_DEBUG(Printf(" deleting directory %S",p->iPath->PathName()));
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delete p;
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}
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}
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TDirectoryCacheHeader* TDriveCacheHeader::FindDirCache(TPathListRecord* aPath)
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{
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TDirectoryCacheHeader* p = iDirectoryList;
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for (; p && p->iPath!=aPath; p=p->iNext) {}
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return p;
|
|
410 |
}
|
|
411 |
|
|
412 |
TInt TDriveCacheHeader::GetDirCache(TDirectoryCacheHeader*& aCache, TPathListRecord* aPath, const TDesC8& aDriveAndPath)
|
|
413 |
{
|
|
414 |
__IF_DEBUG(Printf(">GetDirCache %S", &aDriveAndPath));
|
|
415 |
aCache = FindDirCache(aPath);
|
|
416 |
if (aCache)
|
|
417 |
{
|
|
418 |
__IF_DEBUG(Printf("<GetDirCache already exists %08x", aCache));
|
|
419 |
return KErrNone;
|
|
420 |
}
|
|
421 |
TDirectoryCacheHeader* p = new TDirectoryCacheHeader(aPath);
|
|
422 |
if (!p)
|
|
423 |
return KErrNoMemory;
|
|
424 |
TInt r = p->PopulateFromDrive(aDriveAndPath);
|
|
425 |
__IF_DEBUG(Printf("PopulateFromDrive ret %d", r));
|
|
426 |
if (r != KErrNoMemory && r != KErrLocked && iDriveNumber != EDriveZ)
|
|
427 |
r = SetupNotify((TDriveNumber)iDriveNumber, *p);
|
|
428 |
if (r == KErrNoMemory || r == KErrLocked)
|
|
429 |
{
|
|
430 |
delete p;
|
|
431 |
return r;
|
|
432 |
}
|
|
433 |
// Ignore other errors and keep created entry anyway, so for things like 'path not found'
|
|
434 |
// we have an empty directory cache which will get updated (via notification) if it get created.
|
|
435 |
// This empty entry also allows for a quicker check the second time around.
|
|
436 |
|
|
437 |
p->iNext = iDirectoryList;
|
|
438 |
iDirectoryList = p;
|
|
439 |
__IF_DEBUG(Printf("<GetDirCache new %08x", p));
|
|
440 |
aCache = p;
|
|
441 |
return KErrNone;
|
|
442 |
}
|
|
443 |
|
|
444 |
//============================= TDirectoryCacheHeader================================
|
|
445 |
//
|
|
446 |
TDirectoryCacheHeader::TDirectoryCacheHeader(TPathListRecord* aPath)
|
|
447 |
: iFirstHeapBlock(NULL), iPath(aPath), iRecordCount(0), iCache(NULL),
|
|
448 |
iNotPresent(ETrue), iNotify(NULL)
|
|
449 |
{}
|
|
450 |
|
|
451 |
TDirectoryCacheHeader::~TDirectoryCacheHeader()
|
|
452 |
{
|
|
453 |
__IF_DEBUG(Printf("~TDirectoryCacheHeader %S",iPath->PathName()));
|
|
454 |
User::Free(iCache);
|
|
455 |
delete iNotify;
|
|
456 |
|
|
457 |
while (iFirstHeapBlock)
|
|
458 |
{
|
|
459 |
TCacheHeapList* p = iFirstHeapBlock;
|
|
460 |
iFirstHeapBlock = p->iNext;
|
|
461 |
User::Free(p);
|
|
462 |
}
|
|
463 |
}
|
|
464 |
|
|
465 |
TInt TDirectoryCacheHeader::GetMoreHeap()
|
|
466 |
{
|
|
467 |
TAny* mem = User::Alloc(KCacheHeapGranularity);
|
|
468 |
if (!mem)
|
|
469 |
return KErrNoMemory;
|
|
470 |
TCacheHeapList* n = new (mem) TCacheHeapList(KCacheHeapGranularity);
|
|
471 |
n->iNext = iFirstHeapBlock;
|
|
472 |
iFirstHeapBlock = n;
|
|
473 |
return KErrNone;
|
|
474 |
}
|
|
475 |
|
|
476 |
TAny* TDirectoryCacheHeader::Allocate(const TInt aBytes)
|
|
477 |
{
|
|
478 |
TAny* p = iFirstHeapBlock ? iFirstHeapBlock->Allocate(aBytes) : NULL;
|
|
479 |
if (!p)
|
|
480 |
{
|
|
481 |
if (GetMoreHeap()!=KErrNone)
|
|
482 |
return NULL;
|
|
483 |
p = iFirstHeapBlock->Allocate(aBytes);
|
|
484 |
}
|
|
485 |
return p;
|
|
486 |
}
|
|
487 |
|
|
488 |
TFileCacheRecord* TDirectoryCacheHeader::NewRecord(const TDesC8& aName, TUint32 aAttr, TUint32 aVer, const TEntry& aEntry)
|
|
489 |
{
|
|
490 |
TInt l = aName.Length();
|
|
491 |
TInt minsize = l + sizeof(TFileCacheRecord);
|
|
492 |
TInt extra = aEntry.iSize >> 12; // allow for 8 exports per 4K of file
|
|
493 |
if(extra>128)
|
|
494 |
extra = 128;
|
|
495 |
TInt size = (minsize + extra + 15) &~ 15;
|
|
496 |
|
|
497 |
TFileCacheRecord* p = (TFileCacheRecord*)Allocate(size);
|
|
498 |
if (p)
|
|
499 |
{
|
|
500 |
memclr(p, sizeof(TFileCacheRecord));
|
|
501 |
p->iAttr = aAttr;
|
|
502 |
p->iModuleVersion = aVer;
|
|
503 |
p->iExportDirCount = size - minsize;
|
|
504 |
p->iNameLength = l;
|
|
505 |
p->iExportDescType = (aEntry.iAtt & KEntryAttXIP) ? KImageHdr_ExpD_Xip : KImageHdr_ExpD_NoHoles; // for now
|
|
506 |
p->iCacheStatus = 0;
|
|
507 |
memcpy(p+1, aName.Ptr(), l);
|
|
508 |
}
|
|
509 |
return p;
|
|
510 |
}
|
|
511 |
|
|
512 |
TFileCacheRecord* TDirectoryCacheHeader::NewRecord(const TFileCacheRecord& aRecord, TInt aEDS)
|
|
513 |
{
|
|
514 |
TInt l = aRecord.Name().Length();
|
|
515 |
TInt minsize = l + sizeof(TFileCacheRecord);
|
|
516 |
TInt extra = aEDS + 2;
|
|
517 |
TInt size = (minsize + extra + 15) &~ 15;
|
|
518 |
|
|
519 |
TFileCacheRecord* p = (TFileCacheRecord*)Allocate(size);
|
|
520 |
if (p)
|
|
521 |
{
|
|
522 |
memcpy(p, &aRecord, minsize);
|
|
523 |
memclr((TUint8*)p + minsize, size - minsize);
|
|
524 |
}
|
|
525 |
return p;
|
|
526 |
}
|
|
527 |
|
|
528 |
TInt TDirectoryCacheHeader::PopulateFromDrive(const TDesC8& aPathName)
|
|
529 |
{
|
|
530 |
// Wildcard searches through a named directory on a drive.
|
|
531 |
// Creates and fills records to newly populate the drive cache..
|
|
532 |
|
|
533 |
// only want gen-u-ine files
|
|
534 |
RDir d;
|
|
535 |
TFileName dp;
|
|
536 |
dp.Copy(aPathName);
|
|
537 |
__IF_DEBUG(Print(_L("Opening Directory %S"), &dp));
|
|
538 |
|
|
539 |
iNotPresent=ETrue;
|
|
540 |
TInt r=d.Open(gTheLoaderFs, dp, KEntryAttMatchExclude|KEntryAttDir|KEntryAttVolume);
|
|
541 |
__IF_DEBUG(Printf("Returns %d", r));
|
|
542 |
if (r != KErrNone)
|
|
543 |
{
|
|
544 |
return r;
|
|
545 |
}
|
|
546 |
|
|
547 |
TEntryArray array;
|
|
548 |
TInt sizeofIndexArray=0;
|
|
549 |
TFileCacheRecord** pIndexes=NULL;
|
|
550 |
TInt currentIndex=0;
|
|
551 |
do {
|
|
552 |
r=d.Read(array);
|
|
553 |
if (r==KErrNone || r==KErrEof)
|
|
554 |
{
|
|
555 |
TInt count=array.Count();
|
|
556 |
if (count==0)
|
|
557 |
break;
|
|
558 |
TInt newSize=currentIndex+count;
|
|
559 |
// Round alloc granularity up to the size of the cache cells, to avoid heap fragmentation when
|
|
560 |
// indexing large dirs (z:\sys\bin) - interference effect is minimised by allocating in larger blocks and by
|
|
561 |
// ensuring the freed memory can be reused for cache cells. See INC065949 for original defect.
|
|
562 |
const TInt arrayGranularity = KCacheHeapGranularity + RHeap::EAllocCellSize;
|
|
563 |
sizeofIndexArray = (sizeof(TFileCacheRecord*)*newSize + arrayGranularity - 1) / arrayGranularity * arrayGranularity;
|
|
564 |
TFileCacheRecord** p=(TFileCacheRecord**)User::ReAlloc(pIndexes,sizeofIndexArray);
|
|
565 |
if (!p)
|
|
566 |
{
|
|
567 |
r=KErrNoMemory;
|
|
568 |
break;
|
|
569 |
}
|
|
570 |
pIndexes=p;
|
|
571 |
TInt i=0;
|
|
572 |
while (i<count)
|
|
573 |
{
|
|
574 |
const TEntry& e = array[i++];
|
|
575 |
TInt nl = e.iName.Length();
|
|
576 |
if (nl > KMaxKernelName)
|
|
577 |
{
|
|
578 |
__IF_DEBUG(Printf("Name length %d - too long", nl));
|
|
579 |
continue;
|
|
580 |
}
|
|
581 |
TBuf8<KMaxKernelName> n8;
|
|
582 |
r = CheckedCollapse(n8, e.iName);
|
|
583 |
if (r != KErrNone)
|
|
584 |
{
|
|
585 |
__IF_DEBUG(Printf("Non-ASCII name"));
|
|
586 |
continue;
|
|
587 |
}
|
|
588 |
TFileNameInfo fni;
|
|
589 |
r = fni.Set(n8, 0);
|
|
590 |
if (r != KErrNone)
|
|
591 |
{
|
|
592 |
__IF_DEBUG(Printf("Bad name"));
|
|
593 |
continue;
|
|
594 |
}
|
|
595 |
TBuf8<KMaxKernelName> rootname;
|
|
596 |
fni.GetName(rootname, TFileNameInfo::EIncludeBaseExt);
|
|
597 |
TUint32 attr = fni.VerLen() ? ECodeSegAttExpVer : 0;
|
|
598 |
TFileCacheRecord* pR = NewRecord(rootname, attr, fni.Version(), e);
|
|
599 |
if (!pR)
|
|
600 |
{
|
|
601 |
r=KErrNoMemory;
|
|
602 |
break;
|
|
603 |
}
|
|
604 |
pIndexes[currentIndex] = pR;
|
|
605 |
currentIndex++;
|
|
606 |
}
|
|
607 |
}
|
|
608 |
} while (r==KErrNone);
|
|
609 |
d.Close();
|
|
610 |
if(r==KErrNoMemory)
|
|
611 |
return r;
|
|
612 |
|
|
613 |
iNotPresent = EFalse;
|
|
614 |
iCache = (TFileCacheRecord**)User::ReAlloc(pIndexes,sizeof(TFileCacheRecord*)*currentIndex);
|
|
615 |
iRecordCount = currentIndex;
|
|
616 |
if (currentIndex>1)
|
|
617 |
{
|
|
618 |
// don't sort an empty list, or a list with only 1 element
|
|
619 |
RPointerArray<TFileCacheRecord> rarray(iCache, iRecordCount);
|
|
620 |
rarray.Sort(&TFileCacheRecord::Order);
|
|
621 |
}
|
|
622 |
|
|
623 |
__LDRTRACE( { \
|
|
624 |
RDebug::Printf("RArray sorted"); \
|
|
625 |
TInt i; \
|
|
626 |
for (i=0; i<iRecordCount; i++) \
|
|
627 |
{ \
|
|
628 |
TFileCacheRecord* f = iCache[i]; \
|
|
629 |
const TDesC8& name = f->Name(); \
|
|
630 |
RDebug::Printf("%d: Entry=%S att %08x ver %08x", i, &name, f->iAttr, f->iModuleVersion); \
|
|
631 |
} \
|
|
632 |
});
|
|
633 |
return KErrNone;
|
|
634 |
}
|
|
635 |
|
|
636 |
TInt RefreshDriveInfo()
|
|
637 |
{
|
|
638 |
// Find out what drives are present
|
|
639 |
__IF_DEBUG(Printf(">RefreshDriveInfo"));
|
|
640 |
TDriveList list;
|
|
641 |
TInt r = gTheLoaderFs.DriveList(list);
|
|
642 |
if (r!=KErrNone)
|
|
643 |
{
|
|
644 |
return r;
|
|
645 |
}
|
|
646 |
TDriveInfo d;
|
|
647 |
TDriveNumber drive;
|
|
648 |
for (drive=EDriveA; drive<=EDriveZ; ((TInt&)drive)++)
|
|
649 |
{
|
|
650 |
TInt att = list[drive];
|
|
651 |
if (att)
|
|
652 |
{
|
|
653 |
r = gTheLoaderFs.Drive(d,drive);
|
|
654 |
if (r != KErrNone)
|
|
655 |
continue;
|
|
656 |
if ((d.iDriveAtt & KDriveAttRemote) || (d.iDriveAtt & KDriveAttSubsted))
|
|
657 |
continue; //Don't cache remote or substituted drives
|
|
658 |
if (gDriveFileNamesCache[drive] == NULL)
|
|
659 |
{
|
|
660 |
__IF_DEBUG(Printf("In RefreshDriveInfo adding drive %d, drive= 0x%08x media=0x%08x", drive, d.iDriveAtt, d.iMediaAtt));
|
|
661 |
TDriveCacheHeader* pDH = new TDriveCacheHeader;
|
|
662 |
if (!pDH)
|
|
663 |
return KErrNoMemory;
|
|
664 |
gDriveFileNamesCache[drive] = pDH;
|
|
665 |
pDH->iDriveAtt = d.iDriveAtt;
|
|
666 |
pDH->iDriveNumber = drive;
|
|
667 |
}
|
|
668 |
continue;
|
|
669 |
}
|
|
670 |
TDriveCacheHeader* pDH = gDriveFileNamesCache[drive];
|
|
671 |
delete pDH;
|
|
672 |
gDriveFileNamesCache[drive] = NULL;
|
|
673 |
}
|
|
674 |
__IF_DEBUG(Printf("<RefreshDriveInfo"));
|
|
675 |
return KErrNone;
|
|
676 |
}
|
|
677 |
|
|
678 |
//
|
|
679 |
void InitializeFileNameCache()
|
|
680 |
{
|
|
681 |
__IF_DEBUG(Printf("InitializeFileNameCache"));
|
|
682 |
gInitCacheCheckDrivesAndAddNotifications = EFalse;
|
|
683 |
gCacheCheckDrives = ETrue;
|
|
684 |
__ASSERT_ALWAYS(TPathListRecord::Init()==KErrNone, User::Invariant());
|
|
685 |
}
|
|
686 |
|
|
687 |
TInt CheckLoaderCacheInit()
|
|
688 |
{
|
|
689 |
TInt r=KErrNone;
|
|
690 |
if(RefreshZDriveCache)
|
|
691 |
{
|
|
692 |
// force z: drive cache to be refreshed
|
|
693 |
__IF_DEBUG(Print(_L("Deleting z: drive cache\r\n")));
|
|
694 |
TDriveCacheHeader* pDH=gDriveFileNamesCache[EDriveZ];
|
|
695 |
delete pDH;
|
|
696 |
gDriveFileNamesCache[EDriveZ]=NULL;
|
|
697 |
gCacheCheckDrives=ETrue;
|
|
698 |
RefreshZDriveCache=EFalse;
|
|
699 |
}
|
|
700 |
if (gCacheCheckDrives)
|
|
701 |
{
|
|
702 |
__IF_DEBUG(Printf("Refreshing cache"));
|
|
703 |
r = RefreshDriveInfo(); // refreshing is a 'once-only' operation after setting
|
|
704 |
gCacheCheckDrives = EFalse; // gCacheCheckDrives so as to prevent excessive refreshing
|
|
705 |
}
|
|
706 |
if (!gInitCacheCheckDrivesAndAddNotifications && StartupInitCompleted)
|
|
707 |
{
|
|
708 |
__IF_DEBUG(Printf("Refreshing cache and adding notifications after FS initialisation"));
|
|
709 |
r = RefreshDriveInfo(); // this is to provide an extra refresh to explicitly find
|
|
710 |
r = AddNotifications(); // all drives set up during FS initialisation
|
|
711 |
gInitCacheCheckDrivesAndAddNotifications = ETrue;
|
|
712 |
}
|
|
713 |
return r;
|
|
714 |
}
|
|
715 |
|
|
716 |
TFileCacheRecordSearch::TFileCacheRecordSearch(const TDesC8& aSearchName)
|
|
717 |
{
|
|
718 |
iNameLength = aSearchName.Length();
|
|
719 |
if(iNameLength>sizeof(iSearchName))
|
|
720 |
User::Invariant();
|
|
721 |
memcpy(iSearchName, aSearchName.Ptr(), iNameLength);
|
|
722 |
}
|
|
723 |
|
|
724 |
TInt RImageFinder::SearchSingleDir()
|
|
725 |
{
|
|
726 |
__IF_DEBUG(Printf("SearchSingleDir %S drive %d", &iCurrentPath, iCurrentDrive));
|
|
727 |
|
|
728 |
TDriveCacheHeader* pDH = gDriveFileNamesCache[iCurrentDrive];
|
|
729 |
if (!pDH)
|
|
730 |
{
|
|
731 |
__IF_DEBUG(Printf("No such drive"));
|
|
732 |
return KErrNone;
|
|
733 |
}
|
|
734 |
|
|
735 |
TInt pl = iCurrentPath.Length();
|
|
736 |
TInt start = 0;
|
|
737 |
TInt len = pl;
|
|
738 |
if (pl)
|
|
739 |
{
|
|
740 |
if (iCurrentPath[0] == '\\')
|
|
741 |
start = 1, --len;
|
|
742 |
if (len>0 && iCurrentPath[start + len - 1] == '\\')
|
|
743 |
--len;
|
|
744 |
}
|
|
745 |
TPtrC8 path(iCurrentPath.Mid(start, len));
|
|
746 |
__IF_DEBUG(Printf("Normalised path %S", &path));
|
|
747 |
TChar c;
|
|
748 |
RFs::DriveToChar(iCurrentDrive, c);
|
|
749 |
TBuf8<KMaxFileName> drive_and_path = _S8("?:\\");
|
|
750 |
drive_and_path[0] = (TText8)c;
|
|
751 |
drive_and_path.Append(path);
|
|
752 |
if (drive_and_path[drive_and_path.Length()-1] != '\\')
|
|
753 |
drive_and_path.Append('\\');
|
|
754 |
|
|
755 |
TPathListRecord* prec = TPathListRecord::FindPathNameInList(path);
|
|
756 |
if (!prec)
|
|
757 |
return KErrNoMemory;
|
|
758 |
TDirectoryCacheHeader* dch = NULL;
|
|
759 |
TInt r = pDH->GetDirCache(dch, prec, drive_and_path);
|
|
760 |
if (r != KErrNone || dch->iNotPresent || dch->iRecordCount==0)
|
|
761 |
{
|
|
762 |
return r;
|
|
763 |
}
|
|
764 |
|
|
765 |
// set up to search for root name
|
|
766 |
__IF_DEBUG(Printf("Search directory for %S", &iRootName));
|
|
767 |
TFileCacheRecordSearch search(iRootName);
|
|
768 |
__LDRTRACE({const TDesC8& sr = search.Name(); RDebug::Printf("Search record %S", &sr);});
|
|
769 |
RPointerArray<TFileCacheRecord> rarray(dch->iCache, dch->iRecordCount);
|
|
770 |
TInt first = rarray.SpecificFindInOrder(&search, &TFileCacheRecord::Order, EArrayFindMode_First);
|
|
771 |
TInt last = rarray.SpecificFindInOrder(&search, &TFileCacheRecord::Order, EArrayFindMode_Last);
|
|
772 |
__IF_DEBUG(Printf("First %d Last %d", first, last));
|
|
773 |
TInt ix;
|
|
774 |
for (ix = first; ix < last; ++ix)
|
|
775 |
{
|
|
776 |
TFileCacheRecord* f = dch->iCache[ix];
|
|
777 |
RImageInfo img_info;
|
|
778 |
r = KErrNone;
|
|
779 |
if (!f->ExtrasValid())
|
|
780 |
{
|
|
781 |
r = f->GetImageInfo(img_info, drive_and_path, dch, ix);
|
|
782 |
if (r == KErrNoMemory)
|
|
783 |
return r;
|
|
784 |
f = dch->iCache[ix]; // may have been moved
|
|
785 |
}
|
|
786 |
if (r==KErrNone)
|
|
787 |
{
|
|
788 |
img_info = *f;
|
|
789 |
r = Try(img_info, f->Name(), drive_and_path);
|
|
790 |
if (r == KErrNoMemory)
|
|
791 |
{
|
|
792 |
img_info.Close();
|
|
793 |
return r;
|
|
794 |
}
|
|
795 |
f->iCacheStatus = img_info.iCacheStatus;
|
|
796 |
}
|
|
797 |
else
|
|
798 |
RecordCorruptFile();
|
|
799 |
img_info.Close();
|
|
800 |
if (r==KErrCompletion)
|
|
801 |
break;
|
|
802 |
}
|
|
803 |
return KErrNone;
|
|
804 |
}
|
|
805 |
|
|
806 |
// Populate the 'extras' in the cache record by reading the file header
|
|
807 |
// aPathName must be of the form ?:\dir\...\dir\ so that a fully qualified file name is obtained by
|
|
808 |
// appending the file name.
|
|
809 |
TInt TFileCacheRecord::GetImageInfo(RImageInfo& aInfo, const TDesC8& aPathName, TDirectoryCacheHeader* aDirHead, TInt aIndex)
|
|
810 |
{
|
|
811 |
const TDesC8& rootname = Name();
|
|
812 |
TBuf8<KMaxFileName> fn = aPathName;
|
|
813 |
TFileNameInfo fni;
|
|
814 |
fni.Set(rootname, 0);
|
|
815 |
fni.iVersion = iModuleVersion;
|
|
816 |
TUint flags = (iAttr & ECodeSegAttExpVer) ? TFileNameInfo::EForceVer : 0;
|
|
817 |
fni.GetName(fn, TFileNameInfo::EIncludeBaseExt | flags);
|
|
818 |
__IF_DEBUG(Printf("Opening file %S", &fn));
|
|
819 |
TInt r = OpenFile8(aInfo.iFile, fn);
|
|
820 |
__IF_DEBUG(Printf("Open file returns %d", r));
|
|
821 |
if (r != KErrNone)
|
|
822 |
return r;
|
|
823 |
TInt address = 0;
|
|
824 |
r = aInfo.iFile.Seek(ESeekAddress, address);
|
|
825 |
if (r!=KErrNotSupported)
|
|
826 |
{
|
|
827 |
__IF_DEBUG(Printf("ROM file at %08x", address));
|
|
828 |
TUint att;
|
|
829 |
r = aInfo.iFile.Att(att);
|
|
830 |
if (r!=KErrNone)
|
|
831 |
{
|
|
832 |
aInfo.Close();
|
|
833 |
return r;
|
|
834 |
}
|
|
835 |
if (att & KEntryAttXIP)
|
|
836 |
{
|
|
837 |
const TRomImageHeader& rih = *(const TRomImageHeader*)address;
|
|
838 |
__IF_DEBUG(Printf("XIP file"));
|
|
839 |
SetXIP(&rih);
|
|
840 |
if ((iAttr & ECodeSegAttExpVer) && iModuleVersion != rih.iModuleVersion)
|
|
841 |
{
|
|
842 |
// version in file name does not match version in header
|
|
843 |
aInfo.Close();
|
|
844 |
return KErrBadName;
|
|
845 |
}
|
|
846 |
iModuleVersion = rih.iModuleVersion;
|
|
847 |
iS = rih.iS;
|
|
848 |
iExportDirCount = (TUint16)rih.iExportDirCount;
|
|
849 |
iExportDescType = (TUint8)KImageHdr_ExpD_Xip;
|
|
850 |
iAttr |= rih.iFlags & (KRomImageFlagFixedAddressExe|KRomImageABIMask);
|
|
851 |
__LDRTRACE(Dump("Cached Info XIP"));
|
|
852 |
return KErrNone;
|
|
853 |
}
|
|
854 |
}
|
|
855 |
TFileCacheRecord* t = this;
|
|
856 |
r = E32ImageHeader::New(aInfo.iHeader, aInfo.iFile);
|
|
857 |
if (r != KErrNone)
|
|
858 |
{
|
|
859 |
aInfo.Close();
|
|
860 |
__IF_DEBUG(Printf("E32ImageHeader::New returns %d", r));
|
|
861 |
return r;
|
|
862 |
}
|
|
863 |
E32ImageHeader* h = aInfo.iHeader;
|
|
864 |
if ((iAttr & ECodeSegAttExpVer) && iModuleVersion != h->iModuleVersion)
|
|
865 |
{
|
|
866 |
// version in file name does not match version in header
|
|
867 |
aInfo.Close();
|
|
868 |
return KErrBadName;
|
|
869 |
}
|
|
870 |
wordmove(iUid, &h->iUid1, sizeof(iUid));
|
|
871 |
iModuleVersion = h->ModuleVersion();
|
|
872 |
h->GetSecurityInfo(iS);
|
|
873 |
iAttr |= (h->iFlags & ECodeSegAttFixed) | h->ABI();
|
|
874 |
if(h->iFlags&KImageNmdExpData)
|
|
875 |
iAttr |= ECodeSegAttNmdExpData;
|
|
876 |
TUint avail = iExportDirCount;
|
|
877 |
iExportDirCount = (TUint16)h->iExportDirCount;
|
|
878 |
iExportDescType = KImageHdr_ExpD_NoHoles;
|
|
879 |
|
|
880 |
// get export description...
|
|
881 |
E32ImageHeaderV* v = (E32ImageHeaderV*)h;
|
|
882 |
iExportDescType = v->iExportDescType;
|
|
883 |
TUint eds = v->iExportDescSize;
|
|
884 |
if (eds + 2 > avail)
|
|
885 |
{
|
|
886 |
// must reallocate this entry
|
|
887 |
t = aDirHead->NewRecord(*this, eds);
|
|
888 |
if (!t)
|
|
889 |
{
|
|
890 |
aInfo.Close();
|
|
891 |
return KErrNoMemory;
|
|
892 |
}
|
|
893 |
aDirHead->iCache[aIndex] = t;
|
|
894 |
}
|
|
895 |
TUint8* xd = (TUint8*)t->ExportDescription();
|
|
896 |
xd[0] = (TUint8)eds;
|
|
897 |
xd[1] = (TUint8)(eds>>8);
|
|
898 |
memcpy(xd+2, v->iExportDesc, eds);
|
|
899 |
|
|
900 |
__LDRTRACE(t->Dump("Cached Info"));
|
|
901 |
return KErrNone;
|
|
902 |
}
|
|
903 |
|
|
904 |
RImageInfo& RImageInfo::operator=(const TFileCacheRecord& aRecord)
|
|
905 |
{
|
|
906 |
wordmove(this, &aRecord, sizeof(TImageInfo));
|
|
907 |
if (aRecord.ExtrasValid())
|
|
908 |
{
|
|
909 |
if (aRecord.IsXIP())
|
|
910 |
{
|
|
911 |
iRomImageHeader = aRecord.RomImageHeader();
|
|
912 |
wordmove(iUid, &iRomImageHeader->iUid1, sizeof(iUid));
|
|
913 |
}
|
|
914 |
else if (iExportDescType != KImageHdr_ExpD_NoHoles)
|
|
915 |
{
|
|
916 |
const TUint8* xd = (TUint8*)aRecord.ExportDescription();
|
|
917 |
iExportDescSize = (TUint16)(xd[0] | (xd[1]<<8));
|
|
918 |
iExportDesc = xd + 2;
|
|
919 |
}
|
|
920 |
}
|
|
921 |
return *this;
|
|
922 |
}
|
|
923 |
|
|
924 |
|
|
925 |
#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
926 |
extern void memory_dump(const TAny* a, TUint l);
|
|
927 |
|
|
928 |
void TFileCacheRecord::Dump(const char* aTitle)
|
|
929 |
{
|
|
930 |
RDebug::Printf(aTitle);
|
|
931 |
TUint32 uid1 = iUid[0];
|
|
932 |
TBool xip = (uid1 != (TUint32)KExecutableImageUidValue && uid1 != (TUint32)KDynamicLibraryUidValue);
|
|
933 |
const TDesC8& name = Name();
|
|
934 |
if (xip)
|
|
935 |
{
|
|
936 |
const TRomImageHeader* rih = RomImageHeader();
|
|
937 |
RDebug::Printf("Name: %S Ver %08x Attr %08x", &name, rih->iModuleVersion, iAttr);
|
|
938 |
RDebug::Printf("UIDS %08x %08x %08x SID %08x CAP %08x %08x", rih->iUid1, rih->iUid2, rih->iUid3,
|
|
939 |
rih->iS.iSecureId, rih->iS.iCaps[1], rih->iS.iCaps[0]);
|
|
940 |
RDebug::Printf("ExportDirCount %d ExportDescType %02x", rih->iExportDirCount, iExportDescType);
|
|
941 |
}
|
|
942 |
else
|
|
943 |
{
|
|
944 |
RDebug::Printf("Name: %S Ver %08x Attr %08x", &name, iModuleVersion, iAttr);
|
|
945 |
RDebug::Printf("UIDS %08x %08x %08x SID %08x CAP %08x %08x", iUid[0], iUid[1], iUid[2],
|
|
946 |
iS.iSecureId, iS.iCaps[1], iS.iCaps[0]);
|
|
947 |
RDebug::Printf("ExportDirCount %d ExportDescType %02x", iExportDirCount, iExportDescType);
|
|
948 |
if (iExportDescType != KImageHdr_ExpD_NoHoles)
|
|
949 |
{
|
|
950 |
const TUint8* xd = ExportDescription();
|
|
951 |
TUint eds = (xd[1]<<8) | xd[0];
|
|
952 |
RDebug::Printf("ExportDescSize %04x", eds);
|
|
953 |
memory_dump(xd+2, eds);
|
|
954 |
}
|
|
955 |
}
|
|
956 |
}
|
|
957 |
#endif
|
|
958 |
|
|
959 |
|