--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/sfile/sf_main.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,589 @@
+// Copyright (c) 1995-2009 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\sfile\sf_main.cpp
+// 
+//
+
+#include "sf_std.h"
+#include "sf_plugin.h"
+#include "sf_file_cache.h"	// for TClosedFileUtils
+#include "sf_memory_man.h"
+
+#ifdef __WINS__
+#include <emulator.h>
+#include <e32wins.h>
+#endif
+#include "d32btrace.h"
+
+// define this macro to enable tracing very early on in the boot sequence
+//#define __ENABLE_TRACE__
+
+#ifdef __EPOC32__
+_LIT(KStartupExeSysBinName,"Z:\\Sys\\Bin\\ESTART.EXE");
+#else
+_LIT(KStartupExeName,"E32STRT.EXE");
+_LIT(KStartupExeSysBinName,"E32STRT.EXE");
+#endif
+
+//const TInt KSessionNotifyListGranularity=16; //-- not used anywhere
+
+// patch ldds should specify this as their third uid
+//const TInt KPatchLddUidValue=0x100000cc; //-- not used anywhere
+
+_LIT(KFileServerName,"!FileServer");
+
+void CServerFs::New()
+//
+// Create a new CServerFs.
+//
+	{
+	TheFileServer=new CServerFs(EPriority);
+	__ASSERT_ALWAYS(TheFileServer!=NULL,Fault(EMainCreateServer));
+	TInt r = TheFileServer->iSessionQueueLock.CreateLocal();
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateServer));
+	r=TheFileServer->Start(KFileServerName);
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainStartServer));
+	}
+
+
+CServerFs::CServerFs(TInt aPriority)
+//
+//Constructor.
+// 
+	: CServer2(aPriority,EGlobalSharableSessions)
+	{
+	}
+
+CServerFs::~CServerFs()
+//
+//Destructor.
+// 
+	{
+	iSessionQueueLock.Close();
+	}
+
+void CServerFs::RunL()
+// 
+// calls CServer2::RunL
+//
+	{
+	TInt fn = Message().Function();
+
+	// CServer2::DoConnectL() manipulates iSessionQ & so does CSession2::~CSession2().
+	// Unfortunately the session is deleted from a seperate thread (the disconnect 
+	// thread) so we need a lock to protect it.
+	if (fn == RMessage2::EConnect)
+		{
+		SessionQueueLockWait();		// lock
+		CServer2::RunL();
+		SessionQueueLockSignal();	// unlock
+		}
+	else
+		{
+		CServer2::RunL();
+		}
+	}
+
+CSessionFs* CServerFs::operator[](TInt anIndex)
+//
+// Indexing operator used by DoFsListOpenFiles
+//
+	{
+	__ASSERT_DEBUG(anIndex>=0,Fault(ESvrBadSessionIndex));
+	iSessionIter.SetToFirst();
+	while (anIndex--)
+		iSessionIter++;
+	CSessionFs* ses=(CSessionFs*)&(*iSessionIter);
+	return(ses);
+	}
+
+_LIT(KPrivatePath,"?:\\Private\\");
+CSession2* CServerFs::NewSessionL(const TVersion& aVersion,const RMessage2& aMessage) const
+//
+// Create a new client session for this server.
+//
+	{
+	TVersion v(KF32MajorVersionNumber,KF32MinorVersionNumber,KF32BuildVersionNumber);
+	TBool r=User::QueryVersionSupported(v,aVersion);
+	if (!r)
+		User::Leave(KErrNotSupported);
+	__CALL(if(UserHeapAllocFailCount>=0){__UHEAP_FAILNEXT(10);}); // Create session must succeed
+	CSessionFs* ses=CSessionFs::NewL();
+	CleanupStack::PushL(ses);
+	TUid aUid = aMessage.SecureId();
+	TBuf<30> thePath = KPrivatePath();	
+	thePath[0] = (TUint8) RFs::GetSystemDriveChar();
+	thePath.AppendNumFixedWidth(aUid.iUid, EHex, 8);
+	thePath.Append(KSlash);
+	HBufC* pP=thePath.AllocL(); 
+	ses->SetPath(pP);
+	__CALL(if (UserHeapAllocFailCount>=0){__UHEAP_FAILNEXT(UserHeapAllocFailCount);});
+
+
+	RThread idClient;
+	User::LeaveIfError(aMessage.Client(idClient, EOwnerThread));
+	ses->SetThreadId(idClient.Id());
+	idClient.Close();
+
+	CleanupStack::Pop(); //ses
+
+	return(ses);
+	}
+
+void CSessionFs::ServiceL(const RMessage2& aMessage)
+//
+// Service this message for the server
+//
+	{
+	__CALL( if (SimulateError(&aMessage)) { aMessage.Complete(ErrorCondition); return; } );
+	const TInt ipcFunction = aMessage.Function() & KIpcFunctionMask;
+	
+	if((ipcFunction) >= EMaxClientOperations)
+		{
+		__THRD_PRINT1(_L("CSessionFs::DoServiceL() - func 0x%x KErrNotSupported"), ipcFunction);
+		aMessage.Complete(KErrNotSupported);
+		return;
+		}
+	 
+	const TOperation& oP = OperationArray[ipcFunction];
+	CFsClientMessageRequest* pR = NULL;
+	TInt r = RequestAllocator::GetMessageRequest(oP, aMessage, pR);
+	if(r != KErrNone)
+		{
+		if(r == KErrBadHandle)
+			{
+			_LIT(KPanic,"Panic");
+			aMessage.Panic(KPanic, r);
+			return;
+			}
+		aMessage.Complete(r);
+		return;
+		}
+	pR->Set(aMessage, oP, this);
+	__PRINT4TEMP(_L("***** Received Message sess %08x req %08x func 0x%x - %S"), this, pR, ipcFunction, GetFunctionName(ipcFunction));
+	pR->Dispatch();
+	}
+
+void CActiveSchedulerFs::New()
+//
+// Create and install the active scheduler.
+//
+	{
+
+	CActiveSchedulerFs* pA=new CActiveSchedulerFs;
+	__ASSERT_ALWAYS(pA!=NULL,Fault(EMainCreateScheduler));
+	CActiveScheduler::Install(pA);
+	}
+
+void CActiveSchedulerFs::Error(TInt anError) const
+//
+// Called if any Run() method leaves, which should never happen.
+//
+	{
+
+	__PRINT1(_L("FileSystemActiveScheduler Error %d"),anError);
+	User::Panic(_L("FSRV-ERR"),anError);
+	}
+
+
+void createAllL()
+//
+// Create the initial objects
+//
+	{
+//
+// First we need to create all the containers.
+//
+	TheContainer=CFsObjectConIx::NewL();
+	FileSystems=TheContainer->CreateL();
+	Extensions=TheContainer->CreateL();
+	ProxyDrives=TheContainer->CreateL();
+	Files=TheContainer->CreateL();
+	FileShares=TheContainer->CreateL();
+	Dirs=TheContainer->CreateL();
+	Formats=TheContainer->CreateL();
+	RawDisks=TheContainer->CreateL();
+	TClosedFileUtils::InitL();
+
+//
+// Initialize the drives
+//
+	for (TInt i=0;i<KMaxDrives;i++)
+		TheDrives[i].CreateL(i);
+
+//
+// Next we need to create the ROM file system.
+//
+#if defined(__EPOC32__)
+	InstallRomFileSystemL();
+	CFileSystem* romFs=GetFileSystem(_L("Rom"));
+//#ifndef __DATA_CAGING__	
+	TheDefaultPath=_L("Z:\\"); // Temporarily set the default path to the ROM
+//#endif
+	TheDrives[EDriveZ].SetAtt(KDriveAttRom|KDriveAttInternal);
+	TheDrives[EDriveZ].GetFSys()=romFs;
+	TInt r=FsThreadManager::InitDrive(EDriveZ,ETrue);
+	User::LeaveIfError(r);
+#endif
+	}
+
+
+TInt InitializeLocalFileSystem(const TDesC& aName)
+//
+// Initialize the local file system
+//
+	{
+
+    __PRINT(_L("InitializeLocalFileSystem"));
+    CFileSystem* localFileSystem=GetFileSystem(aName);
+	__ASSERT_DEBUG(localFileSystem!=NULL,Fault(EMainGetLocalFileSystem));
+	if(localFileSystem == NULL)
+		return KErrNotFound;
+#if defined(__WINS__)
+	TheDrives[EDriveZ].GetFSys()=localFileSystem;
+	TheDrives[EDriveZ].SetAtt(KDriveAttRom|KDriveAttInternal);
+	TInt r=FsThreadManager::InitDrive(EDriveZ,ETrue);
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainInitialiseRomFs));
+#endif
+
+//
+// Initialize the default path
+//
+//#ifndef __DATA_CAGING__
+#if !defined(__WINS__)
+	TInt r;
+#endif
+	r=localFileSystem->DefaultPath(TheDefaultPath);
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainGetLocalDefaultPath));
+//#endif
+
+	LocalFileSystemInitialized=ETrue;
+
+	return KErrNone;
+
+	}
+
+_LIT(KMediaLddName, "ELOCD");
+
+TInt StartupThread(TAny*)
+//
+// The startup thread.
+//
+	{
+
+    __PRINT(_L("StartupThread"));
+	User::SetCritical(User::ESystemCritical);
+
+	TInt r;
+#ifdef SYMBIAN_FTRACE_ENABLE
+	r = User::LoadLogicalDevice(_L("D_FTRACE"));	
+	__PRINT1(_L("User::LoadLogicalDevice(D_FTRACE) returns %d"),r);
+	__ASSERT_ALWAYS(r==KErrNone || r==KErrAlreadyExists,Fault(ETraceLddLoadFailure));
+
+	r = TheFtrace.Open(EOwnerProcess);
+	__ASSERT_ALWAYS(r==KErrNone || r==KErrAlreadyExists,Fault(ETraceLddLoadFailure));
+#endif
+
+#if defined (__ENABLE_TRACE__)
+		{
+		RBTrace trace;
+		
+		trace.Open();
+		
+//		trace.SetMode(RBTrace::EEnable + RBTrace::EFreeRunning);
+		trace.SetFilter(BTrace::EThreadIdentification,1);
+
+		trace.SetFilter(UTF::EBorder,1);
+		trace.SetFilter(UTF::EError,1);
+
+		trace.SetFilter2(EF32TraceUidEfsrv,1);
+//		trace.SetFilter2(EF32TraceUidFileSys,1);
+//		trace.SetFilter2(EF32TraceUidProxyDrive,1);
+
+		trace.Close();	
+		}
+
+#endif
+
+//
+// Load the file system's device driver
+//
+	r=User::LoadLogicalDevice(KMediaLddName);
+	__PRINT1(_L("User::LoadLogicalDevice(KMediaLddName) returns %d"),r);
+
+	__ASSERT_ALWAYS(r==KErrNone || r==KErrAlreadyExists || r==KErrNotFound,Fault(EMainCreateResources6));
+	#ifdef __WINS__
+		// Load media drivers using Win32 functions.  It is not possible to directly
+		// read the \epoc32\release\wins\udeb directory, and ELOCAL must be mounted
+		// to access Win32 anyway.
+
+		_LIT(KMDW1, "MED*.PDD");
+		TBuf<9> KMDW(KMDW1);					// reserve space for \0
+
+		TFileName *pfn = new TFileName;
+		__ASSERT_ALWAYS(pfn != NULL, Fault(EMainScanMediaDriversMem1));
+		TFileName &fn = *pfn;
+
+		MapEmulatedFileName(fn, KMDW);
+		__ASSERT_ALWAYS(fn.Length() < KMaxFileName, Fault(EMainScanMediaDriversLocation));
+
+		WIN32_FIND_DATA ffd;
+		HANDLE h = Emulator::FindFirstFile(fn.PtrZ(), &ffd);
+		BOOL fF = (h != INVALID_HANDLE_VALUE);
+		while (fF)
+			{
+			TPtrC mdNm(ffd.cFileName);			// null terminated wchar_t array
+
+			// NB: parse Win32 file path with EPOC32 functionality.
+			TParse *pprs = new TParse;
+			__ASSERT_ALWAYS(pprs != NULL, Fault(EMainScanMediaDriversMem2));
+			TParse &prs = *pprs;
+			prs.Set(mdNm, NULL, NULL);
+			r = User::LoadPhysicalDevice(prs.NameAndExt());
+			__ASSERT_ALWAYS(r==KErrNone || r==KErrAlreadyExists || r==KErrNotFound,Fault(EMainLoadMediaDriver));
+			fF = Emulator::FindNextFile(h, &ffd);
+			delete pprs;
+			}
+		FindClose(h);							// Win32 direct
+
+		delete pfn;
+	#else
+		// Load media drivers for EPOC32 using built-in rom file system.
+		{
+		RFs fsM;
+		r = fsM.Connect();
+		__ASSERT_ALWAYS(r==KErrNone,Fault(EMainScanMediaDriverConnect));
+
+//#ifdef __EPOC32__
+		_LIT(KMDSysBinHome, "Z:\\Sys\\Bin\\med*.pdd");
+//#else
+//		_LIT(KMDHome, "med*.pdd");
+//#endif
+		RDir d;
+		r = d.Open(fsM, KMDSysBinHome, KEntryAttMaskSupported);
+		__ASSERT_ALWAYS(r==KErrNone,Fault(EMainScanMediaDriverDirOpen));
+
+		TBool done = EFalse;
+		do
+			{
+			TEntryArray ea;
+			r = d.Read(ea);
+			__ASSERT_ALWAYS(r == KErrNone || r == KErrEof, Fault(EMainScanMediaDriverDirRead));
+			done = (r == KErrEof);
+
+			for (TInt i = 0; i < ea.Count(); ++i)
+				{
+				const TEntry &e = ea[i];
+				if (!e.IsDir())
+					{
+					TParse *pprs = new TParse;
+					__ASSERT_ALWAYS(pprs != NULL, Fault(EMainScanMediaDriversMem1));
+					TParse &prs = *pprs;
+					prs.Set(e.iName, NULL, NULL);
+					TPtrC mdName(prs.NameAndExt());
+					r = User::LoadPhysicalDevice(mdName);
+					__PRINT1(_L("User::LoadPhysicalDevice(mdName) returns %d"),r);
+					__ASSERT_ALWAYS(r==KErrNone || r==KErrAlreadyExists || r==KErrNotFound,Fault(EMainLoadMediaDriver));
+					delete pprs;
+					}
+				}
+			} while (! done);
+		d.Close();
+
+		fsM.Close();
+		}
+	#endif		// else __WINS__
+
+#if defined(__WINS__)
+//#ifndef __DATA_CAGING__	
+		TheDefaultPath=_L("?:\\");
+		TheDefaultPath[0] = (TUint8) RFs::GetSystemDriveChar();
+//#endif
+#endif
+
+#if defined(__EPOC32__)
+	TMachineStartupType reason;
+	UserHal::StartupReason(reason);
+#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
+	PrintStartUpReason(reason);
+#endif
+	OpenOnDriveZOnly = (reason==EStartupSafeReset);
+#endif
+
+//
+// Now we must load estart from z:
+//
+	RProcess eStart;
+#if defined(__WINS__)
+	const char* eStartPath = NULL;
+	UserSvr::HalFunction(EHalGroupEmulator,EEmulatorHalStringProperty,(TAny*)"EStart",&eStartPath);
+	if (eStartPath == NULL)
+		{
+		r=eStart.Create(KStartupExeSysBinName,KNullDesC);
+		}
+	else
+		{
+		TPtrC8 temp((unsigned char *)eStartPath);
+		TBuf16<KMaxFileName> buf;
+		buf.Copy(temp);
+		r=eStart.Create(buf,KNullDesC);
+		}
+#else
+	r=eStart.Create(KStartupExeSysBinName,KNullDesC);
+#endif
+
+	if (r!=KErrNone)	// Whoops!
+		Fault(EMainStartupNoEStart);
+	eStart.Resume();	// Start the process going
+	eStart.Close();		// Get rid of our handle
+#if defined(_LOCKABLE_MEDIA)
+	// Create a global semaphore for the asynchronous WriteToDisk() threads.
+	RSemaphore s;
+	r = s.CreateGlobal(_L("dwsem"), 1);			// only supp 1 thd at a time
+	__ASSERT_ALWAYS(r == KErrNone, Fault(EMainStartupWriteToDiskSemaphore));
+#endif
+
+//
+// Now we can just exit the startup thread as its no longer needed.
+//
+	return(KErrNone);
+	}
+
+void commonInitialize()
+//
+// Initialization common to all platforms.
+//
+	{
+
+	__PRINT(_L("commonInitialize"));
+#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
+	ErrorCondition=KErrNone;
+	ErrorCount=0;
+	UserHeapAllocFailCount=-1;
+	KernHeapAllocFailCount=-1;
+#endif
+	
+	TInt r= RequestAllocator::iCacheLock.CreateLocal();
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EFsCacheLockFailure));
+	
+	// initialise the TParse pool lock object
+	r = TParsePool::Init();
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EFsParsePoolLockFailure));
+	
+	// Get local copies of capability sets
+	TCapabilitySet caps;
+	caps.SetAllSupported();
+	AllCapabilities=*(SCapabilitySet*)&caps;
+	caps.SetDisabled();
+	DisabledCapabilities=*(SCapabilitySet*)&caps;
+
+	FsThreadManager::SetMainThreadId();
+	r=FsThreadManager::CreateDisconnectThread();
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainDisconnectThread));
+
+	RequestAllocator::Initialise();
+
+	//
+	// Install a trap handler
+	//
+	CTrapCleanup* trapHandler=CTrapCleanup::New();
+	__ASSERT_ALWAYS(trapHandler!=NULL,Fault(EMainCreateResources1));
+
+	TRAP(r,createAllL())
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateResources1));
+	CActiveSchedulerFs::New();
+	CServerFs::New();
+	TheKernEventNotifier = CKernEventNotifier::New();
+    __ASSERT_ALWAYS(TheKernEventNotifier,Fault(EMainCreateResources5));
+    CActiveSchedulerFs::Add(TheKernEventNotifier);
+    TheKernEventNotifier->Start();
+//
+	__ASSERT_ALWAYS(InitLoader()==KErrNone,Fault(ELdrRestartInit));
+//
+	LocalFileSystemInitialized=EFalse;
+	StartupInitCompleted=EFalse;
+	RefreshZDriveCache=EFalse;
+	CompFsMounted=EFalse;
+	CompFsSync=ETrue;
+
+	// initialise notification information
+	FsNotify::Initialise();
+	// initialise local drive specific information
+	LocalDrives::Initialise();
+
+	TRAP(r, FsPluginManager::InitialiseL());
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateStartupThread0));
+
+	RThread t;
+	r=t.Create(_L("StartupThread"),StartupThread,KDefaultStackSize,KHeapMinSize,KHeapMinSize,NULL);
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateStartupThread1));
+	t.SetPriority(EPriorityLess);
+
+	CLogon* pL=NULL;
+	TRAP(r,pL=CLogon::NewL());
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateStartupThread2));
+
+	// NOTE: This function only returns after the startup thread has exited
+	r=pL->Logon(t);
+
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateStartupThread3));
+	delete pL;
+
+	// Make a proper process relative handle to the server
+	r=TheServerThread.Duplicate(TheServerThread);
+	__ASSERT_ALWAYS(r==KErrNone,Fault(EMainCreateStartupThread4));
+	ServerThreadAllocator = &User::Heap();
+	}
+
+TBool ServerIsRunning()
+//
+// Check whether or not the server already exists
+//
+	{
+
+	TFullName serverName;
+	TFindServer fileServer(KFileServerName);
+	TInt result=fileServer.Next(serverName);
+	if (result!=KErrNotFound)
+		return(ETrue);
+	return(EFalse);
+	}
+
+TInt E32Main()
+//
+// The file server.
+//
+	{
+	if (ServerIsRunning())
+		return(KErrNone);
+
+#if defined(_DEBUG) || defined(_DEBUG_RELEASE)
+	if (UserSvr::DebugMask() & 0x402)	// KBOOT | KDLL
+		//DebugReg=KFLDR;
+		//DebugReg=KFSERV|KFLDR;
+		DebugReg=KFSERV|KFLDR|KLFFS|KTHRD|KROFS;
+		
+//	DebugReg=KFSYS|KFSERV|KFLDR|KLFFS|KTHRD|KCACHE|KROFS|KCOMPFS|KCACHE;
+//	User::SetDebugMask(0x80004000);
+
+#endif
+	__PRINT(_L("FileServer E32Main"));
+	
+	UserSvr::FsRegisterThread();
+	RThread().SetPriority(EPriorityMore);
+	commonInitialize();
+	CActiveSchedulerFs::Start();
+	return(KErrNone);
+	}
+