C++ CKnownFile::IsPartFile方法代码示例

BOOL CUpdateInfo::DeleteUpdate(CString hash)
{
	uchar UpdateHash[16];
	CPartFile* pPartFile;

	if(!strmd4(hash,UpdateHash))
	{
		return FALSE;
	}

	CKnownFile* file = CGlobalVariable::sharedfiles->GetFileByID(UpdateHash);

	try
	{
		//共享列表中是否有
		if(file)
		{
			if(file->IsPartFile())
			{
				//共享列表有，但未下载完，移除
				pPartFile = DYNAMIC_DOWNCAST(CPartFile,file);
				if( pPartFile )
				{
					pPartFile->DeleteFile();
				}
			}
			else
			{
				//共享列表有，已经下载完成未安装，移除
				DeleteFile(file->GetFilePath());
				theApp.emuledlg->sharedfileswnd->sharedfilesctrl.RemoveFile(file);
				CGlobalVariable::sharedfiles->RemoveFile(file);
			}
		}

		if ((pPartFile = CGlobalVariable::downloadqueue->GetFileByID(UpdateHash)) != NULL)
		{
			//共享列表没有，但未下载完，移除
			pPartFile->DeleteFile();
		}
	}
	catch (CException* e)
	{
		e->Delete();
		return FALSE;
	}

	return FALSE;
}

int CAICHSyncThread::Run()
{
	if ( !theApp.emuledlg->IsRunning() )
		return 0;

	// we collect all masterhashs which we find in the known2.met and store them in a list
	CList<CAICHHash> liKnown2Hashs;
	CString fullpath=thePrefs.GetConfigDir();
	fullpath.Append(KNOWN2_MET_FILENAME);
	CSafeFile file;
	CFileException fexp;
	uint32 nLastVerifiedPos = 0;
	if (!file.Open(fullpath,CFile::modeCreate|CFile::modeReadWrite|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){
		if (fexp.m_cause != CFileException::fileNotFound){
			CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file"));
			TCHAR szError[MAX_CFEXP_ERRORMSG];
			if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){
				strError += _T(" - ");
				strError += szError;
			}
			LogError(LOG_STATUSBAR, _T("%s"), strError);
		}
		return false;
	}
	try {
		//setvbuf(file.m_pStream, NULL, _IOFBF, 16384);
		uint32 nExistingSize = file.GetLength();
		uint16 nHashCount;
		while (file.GetPosition() < nExistingSize){
			liKnown2Hashs.AddTail(CAICHHash(&file));
			nHashCount = file.ReadUInt16();
			if (file.GetPosition() + nHashCount*HASHSIZE > nExistingSize){
				AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName());
			}
			// skip the rest of this hashset
			file.Seek(nHashCount*HASHSIZE, CFile::current);
			nLastVerifiedPos = file.GetPosition();
		}
	}
	catch(CFileException* error){
		if (error->m_cause == CFileException::endOfFile){
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_BAD));
			// truncate the file to the size to the last verified valid pos
			try{
				file.SetLength(nLastVerifiedPos);
			}
			catch(CFileException* error2){
				error2->Delete();
			}
		}
		else{
			TCHAR buffer[MAX_CFEXP_ERRORMSG];
			error->GetErrorMessage(buffer, ARRSIZE(buffer));
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer);
		}
		error->Delete();
		return false;
	}
	file.Close();

	// now we check that all files which are in the sharedfilelist have a corresponding hash in out list
	// those how don'T are added to the hashinglist
	for (uint32 i = 0; i < theApp.sharedfiles->GetCount(); i++){
		CKnownFile* pCurFile = theApp.sharedfiles->GetFileByIndex(i);
		if (pCurFile != NULL && !pCurFile->IsPartFile() ){
			if (theApp.emuledlg==NULL || !theApp.emuledlg->IsRunning()) // in case of shutdown while still hashing
				return 0;
			if (pCurFile->GetAICHHashset()->GetStatus() == AICH_HASHSETCOMPLETE){
				bool bFound = false;
				for (POSITION pos = liKnown2Hashs.GetHeadPosition();pos != 0;)
				{
					if (liKnown2Hashs.GetNext(pos) == pCurFile->GetAICHHashset()->GetMasterHash()){
						bFound = true;
#ifdef _DEBUG
						// in debugmode we load and verify all hashsets
						ASSERT( pCurFile->GetAICHHashset()->LoadHashSet() );
//			 			pCurFile->GetAICHHashset()->DbgTest();
						pCurFile->GetAICHHashset()->FreeHashSet();
#endif
						break;
					}
				}
				if (bFound) // hashset is available, everything fine with this file
					continue;
			}
			pCurFile->GetAICHHashset()->SetStatus(AICH_ERROR);
			m_liToHash.AddTail(pCurFile);
		}
	}
	// warn the user if he just upgraded
	if (thePrefs.IsFirstStart() && !m_liToHash.IsEmpty()){
		LogWarning(GetResString(IDS_AICH_WARNUSER));
	}

	if (!m_liToHash.IsEmpty()){
		AddLogLine(true, GetResString(IDS_AICH_SYNCTOTAL), m_liToHash.GetCount() );	// I18n: ThreadSafeLog
		theApp.emuledlg->sharedfileswnd->sharedfilesctrl.SetAICHHashing(m_liToHash.GetCount());
		// let first all normal hashing be done before starting out synchashing
		CSingleLock sLock1(&theApp.hashing_mut); // only one filehash at a time
		while (theApp.sharedfiles->GetHashingCount() != 0){
//.........这里部分代码省略.........

//.........这里部分代码省略.........
					textBuffer = file->GetFileName().GetPrintable();

					if (file->GetFileRating() || file->GetFileComment().Length()) {
						int image = Client_CommentOnly_Smiley;
						if (file->GetFileRating()) {
							image = Client_InvalidRating_Smiley + file->GetFileRating() - 1;
						}	
							
						wxASSERT(image >= Client_InvalidRating_Smiley);
						wxASSERT(image <= Client_CommentOnly_Smiley);

						int imgWidth = 16;
						
						theApp->amuledlg->m_imagelist.Draw(image, *dc, columnRect.x,
								columnRect.y + 1, wxIMAGELIST_DRAW_TRANSPARENT);

						// Move the text to the right
						columnRect.x += (imgWidth + 4);
					}

					break;
				
				case ID_SHARED_COL_SIZE:
					textBuffer = CastItoXBytes(file->GetFileSize());
					break;

				case ID_SHARED_COL_TYPE:
					textBuffer = GetFiletypeByName(file->GetFileName());
					break;

				case ID_SHARED_COL_PRIO:
					textBuffer = PriorityToStr(file->GetUpPriority(), file->IsAutoUpPriority());
					break;

				case ID_SHARED_COL_ID:
					textBuffer = file->GetFileHash().Encode();
					break;
				
				case ID_SHARED_COL_REQ:
					textBuffer = CFormat(wxT("%u (%u)"))
							% file->statistic.GetRequests()
							% file->statistic.GetAllTimeRequests();
					break;

				case ID_SHARED_COL_AREQ:
					textBuffer = CFormat(wxT("%u (%u)"))
							% file->statistic.GetAccepts()
							% file->statistic.GetAllTimeAccepts();
					break;

				case ID_SHARED_COL_TRA:
					textBuffer = CastItoXBytes(file->statistic.GetTransferred())
						+ wxT(" (") + CastItoXBytes(file->statistic.GetAllTimeTransferred()) + wxT(")");
					break;
					
				case ID_SHARED_COL_RTIO:
					textBuffer = CFormat(wxT("%.2f")) %	((double)file->statistic.GetAllTimeTransferred() / file->GetFileSize());
					break;
				
				case ID_SHARED_COL_PART:
					if ( file->GetPartCount() ) {
						wxRect barRect(columnRect.x, columnRect. y + 1, 
							columnRect.width, columnRect.height - 2);
						
						DrawAvailabilityBar(file, dc, barRect);
					}
					break;
				
				case ID_SHARED_COL_CMPL:
					if ( file->m_nCompleteSourcesCountLo == 0 ) {
						if ( file->m_nCompleteSourcesCountHi ) {
							textBuffer = CFormat(wxT("< %u")) % file->m_nCompleteSourcesCountHi;
						} else {
							textBuffer = wxT("0");
						}
					} else if (file->m_nCompleteSourcesCountLo == file->m_nCompleteSourcesCountHi) {
						textBuffer = CFormat(wxT("%u")) % file->m_nCompleteSourcesCountLo;
					} else {
						textBuffer = CFormat(wxT("%u - %u")) % file->m_nCompleteSourcesCountLo % file->m_nCompleteSourcesCountHi;
					}
					
					break;				
				
				case ID_SHARED_COL_PATH:
					if ( file->IsPartFile() ) {
						textBuffer = _("[PartFile]");
					} else {
						textBuffer = file->GetFilePath().GetPrintable();
					}
			}

			if (!textBuffer.IsEmpty()) {
				dc->DrawText(textBuffer, columnRect.x, columnRect.y + textVOffset);
			}
		}

		// Move to the next column
		columnLeft += columnWidth;
	}
}

BOOL CUpdateInfo::ClearUpdateHistory(const uchar * hashkey)//清除历史升级任务
{
	for (int i = 0; i < CGlobalVariable::sharedfiles->GetCount(); i++)
	{
		CKnownFile* file = CGlobalVariable::sharedfiles->GetFileByIndex(i);
		CPartFile* pPartFile;

		try
		{
			//共享列表中是否有
			if(file)
			{
				if ( IsUpdateTask( file->GetFilePath() ) && file->GetFileHash() != hashkey )
				{
					if(file->IsPartFile())
					{
						//共享列表有，但未下载完，移除
						pPartFile = DYNAMIC_DOWNCAST(CPartFile,file);
						if( pPartFile )
						{
							pPartFile->DeleteFile();
						}
					}
					else
					{
						//共享列表有，已经下载完成未安装，移除
						DeleteFile(file->GetFilePath());
						theApp.emuledlg->sharedfileswnd->sharedfilesctrl.RemoveFile(file);
						CGlobalVariable::sharedfiles->RemoveFile(file);

						CGlobalVariable::filemgr.RemoveFileItem(file);
					}
				}
				else
					continue;
			}
		}
		catch (CException* e)
		{
			e->Delete();
			//return FALSE;
		}
	}

	for (int i = 0; i < CGlobalVariable::downloadqueue->GetFileCount(); i++)
	{
		CPartFile* pFile = CGlobalVariable::downloadqueue->GetFileByIndex(i);
		try
		{
			if (pFile)
			{
				if ( IsUpdateTask( pFile->GetFilePath() ) && pFile->GetFileHash() != hashkey )
				{
					//共享列表没有，但未下载完，移除
					pFile->DeleteFile();
				}
			}
		}
		catch (CException* e)
		{
			e->Delete();
			//return FALSE;
		}
	}

	return TRUE;
}

int CAICHSyncThread::Run()
{
	if ( !theApp.emuledlg->IsRunning() )
		return 0;
	// we need to keep a lock on this file while the thread is running
	CSingleLock lockKnown2Met(&CAICHHashSet::m_mutKnown2File);
	lockKnown2Met.Lock();
	
	// we collect all masterhashs which we find in the known2.met and store them in a list
	CList<CAICHHash> liKnown2Hashs;
	CString fullpath=thePrefs.GetConfigDir();
	fullpath.Append(KNOWN2_MET_FILENAME);
	CSafeFile file;
	CFileException fexp;
	uint32 nLastVerifiedPos = 0;

	if (!file.Open(fullpath,CFile::modeCreate|CFile::modeReadWrite|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){
		if (fexp.m_cause != CFileException::fileNotFound){
			CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file"));
			TCHAR szError[MAX_CFEXP_ERRORMSG];
			if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){
				strError += _T(" - ");
				strError += szError;
			}
			LogError(LOG_STATUSBAR, _T("%s"), strError);
		}
		return false;
	}
	try {
		//setvbuf(file.m_pStream, NULL, _IOFBF, 16384);
		uint32 nExistingSize = (UINT)file.GetLength();
		uint16 nHashCount;
		while (file.GetPosition() < nExistingSize){
			liKnown2Hashs.AddTail(CAICHHash(&file));
			nHashCount = file.ReadUInt16();
			if (file.GetPosition() + nHashCount*CAICHHash::GetHashSize() > nExistingSize){
				AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName());
			}
			// skip the rest of this hashset
			file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current);
			nLastVerifiedPos = (UINT)file.GetPosition();
		}
	}
	catch(CFileException* error){
		if (error->m_cause == CFileException::endOfFile){
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_BAD));
			// truncate the file to the size to the last verified valid pos
			try{
				file.SetLength(nLastVerifiedPos);
			}
			catch(CFileException* error2){
				error2->Delete();
			}
		}
		else{
			TCHAR buffer[MAX_CFEXP_ERRORMSG];
			error->GetErrorMessage(buffer, ARRSIZE(buffer));
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer);
		}
		error->Delete();
		return false;
	}
	
	// now we check that all files which are in the sharedfilelist have a corresponding hash in out list
	// those how don'T are added to the hashinglist
	CList<CAICHHash> liUsedHashs;	
	CSingleLock sharelock(&theApp.sharedfiles->m_mutWriteList);
	sharelock.Lock();

	for (uint32 i = 0; i < theApp.sharedfiles->GetCount(); i++){
		CKnownFile* pCurFile = theApp.sharedfiles->GetFileByIndex(i);
		if (pCurFile != NULL && !pCurFile->IsPartFile() ){
			if (theApp.emuledlg==NULL || !theApp.emuledlg->IsRunning()) // in case of shutdown while still hashing
				return 0;
			if (pCurFile->GetAICHHashset()->GetStatus() == AICH_HASHSETCOMPLETE){
				bool bFound = false;
				for (POSITION pos = liKnown2Hashs.GetHeadPosition();pos != 0;)
				{
					CAICHHash current_hash = liKnown2Hashs.GetNext(pos);
					if (current_hash == pCurFile->GetAICHHashset()->GetMasterHash()){
						bFound = true;
						liUsedHashs.AddTail(current_hash);
						//theApp.QueueDebugLogLine(false, _T("%s - %s"), current_hash.GetString(), pCurFile->GetFileName());
#ifdef _DEBUG
						// in debugmode we load and verify all hashsets
						ASSERT( pCurFile->GetAICHHashset()->LoadHashSet() );
//			 			pCurFile->GetAICHHashset()->DbgTest();
						pCurFile->GetAICHHashset()->FreeHashSet();
#endif
						break;
					}
				}
				if (bFound) // hashset is available, everything fine with this file
					continue;
			}
			pCurFile->GetAICHHashset()->SetStatus(AICH_ERROR);
			m_liToHash.AddTail(pCurFile);
		}
	}
	sharelock.Unlock();
//.........这里部分代码省略.........

bool CClientUDPSocket::ProcessPacket(const BYTE* packet, uint16 size, uint8 opcode, uint32 ip, uint16 port)
{
	switch(opcode)
	{
		case OP_REASKCALLBACKUDP:
		{
			if (thePrefs.GetDebugClientUDPLevel() > 0)
				DebugRecv("OP_ReaskCallbackUDP", NULL, NULL, ip);
			theStats.AddDownDataOverheadOther(size);
			CUpDownClient* buddy = theApp.clientlist->GetBuddy();
			if( buddy )
			{
				if( size < 17 || buddy->socket == NULL )
					break;
				if (!md4cmp(packet, buddy->GetBuddyID()))
				{
					PokeUInt32(const_cast<BYTE*>(packet)+10, ip);
					PokeUInt16(const_cast<BYTE*>(packet)+14, port);
					Packet* response = new Packet(OP_EMULEPROT);
					response->opcode = OP_REASKCALLBACKTCP;
					response->pBuffer = new char[size];
					memcpy(response->pBuffer, packet+10, size-10);
					response->size = size-10;
					if (thePrefs.GetDebugClientTCPLevel() > 0)
						DebugSend("OP__ReaskCallbackTCP", buddy);
					theStats.AddUpDataOverheadFileRequest(response->size);
					buddy->socket->SendPacket(response);
				}
			}
			break;
		}
		case OP_REASKFILEPING:
		{
			theStats.AddDownDataOverheadFileRequest(size);
			CSafeMemFile data_in(packet, size);
			uchar reqfilehash[16];
			data_in.ReadHash16(reqfilehash);
			CKnownFile* reqfile = theApp.sharedfiles->GetFileByID(reqfilehash);
			if (!reqfile)
			{
				if (thePrefs.GetDebugClientUDPLevel() > 0) {
					DebugRecv("OP_ReaskFilePing", NULL, reqfilehash, ip);
					DebugSend("OP__FileNotFound", NULL);
				}

				Packet* response = new Packet(OP_FILENOTFOUND,0,OP_EMULEPROT);
				theStats.AddUpDataOverheadFileRequest(response->size);
				SendPacket(response, ip, port);
				break;
			}
			CUpDownClient* sender = theApp.uploadqueue->GetWaitingClientByIP_UDP(ip, port);
			if (sender)
			{
				if (thePrefs.GetDebugClientUDPLevel() > 0)
					DebugRecv("OP_ReaskFilePing", sender, reqfilehash);

				//Make sure we are still thinking about the same file
				if (md4cmp(reqfilehash, sender->GetUploadFileID()) == 0)
				{
					sender->AddAskedCount();
					sender->SetLastUpRequest();
					//I messed up when I first added extended info to UDP
					//I should have originally used the entire ProcessExtenedInfo the first time.
					//So now I am forced to check UDPVersion to see if we are sending all the extended info.
					//For now on, we should not have to change anything here if we change
					//anything to the extended info data as this will be taken care of in ProcessExtendedInfo()
					//Update extended info. 
					if (sender->GetUDPVersion() > 3)
					{
						sender->ProcessExtendedInfo(&data_in, reqfile);
					}
					//Update our complete source counts.
					else if (sender->GetUDPVersion() > 2)
					{
						uint16 nCompleteCountLast= sender->GetUpCompleteSourcesCount();
						uint16 nCompleteCountNew = data_in.ReadUInt16();
						sender->SetUpCompleteSourcesCount(nCompleteCountNew);
						if (nCompleteCountLast != nCompleteCountNew)
						{
							reqfile->UpdatePartsInfo();
						}
					}
					CSafeMemFile data_out(128);
					if(sender->GetUDPVersion() > 3)
					{
						if (reqfile->IsPartFile())
							((CPartFile*)reqfile)->WritePartStatus(&data_out);
						else
							data_out.WriteUInt16(0);
					}
					data_out.WriteUInt16(theApp.uploadqueue->GetWaitingPosition(sender));
					if (thePrefs.GetDebugClientUDPLevel() > 0)
						DebugSend("OP__ReaskAck", sender);
					Packet* response = new Packet(&data_out, OP_EMULEPROT);
					response->opcode = OP_REASKACK;
					theStats.AddUpDataOverheadFileRequest(response->size);
					theApp.clientudp->SendPacket(response, ip, port);
				}
				else
				{
//.........这里部分代码省略.........

BOOL CSharedDirsTreeCtrl::OnCommand(WPARAM wParam, LPARAM lParam)
{
	CTypedPtrList<CPtrList, CKnownFile*> selectedList;
	int iSelectedItems = m_pSharedFilesCtrl->GetItemCount();
	for (int i = 0; i < iSelectedItems; i++)
	{
		selectedList.AddTail((CKnownFile*)m_pSharedFilesCtrl->GetItemData(i));
	}
	CDirectoryItem* pSelectedDir = GetSelectedFilter();

	// folder based
	if (pSelectedDir != NULL){
		switch (wParam){
			case MP_OPENFOLDER:
				if (pSelectedDir && pSelectedDir->m_eItemType == SDI_NO){
					ShellExecute(NULL, _T("open"), pSelectedDir->m_strFullPath, NULL, NULL, SW_SHOW);
				}
				break;
			case MP_SHAREDIR:
				EditSharedDirectories(pSelectedDir, true, false);
				break;
			case MP_SHAREDIRSUB:
				EditSharedDirectories(pSelectedDir, true, true);
				break;
			case MP_UNSHAREDIR:
				EditSharedDirectories(pSelectedDir, false, false);
				break;
			case MP_UNSHAREDIRSUB:
				EditSharedDirectories(pSelectedDir, false, true);
				break;
		}
	}

	// file based
	if (selectedList.GetCount() > 0 && pSelectedDir != NULL)
	{
		CKnownFile* file = NULL;
		if (selectedList.GetCount() == 1)
			file = selectedList.GetHead();

		switch (wParam){
			case MP_GETED2KLINK:{
				CString str;
				POSITION pos = selectedList.GetHeadPosition();
				while (pos != NULL)
				{
					file = selectedList.GetNext(pos);
					if (!str.IsEmpty())
						str += _T("\r\n");
					str += CreateED2kLink(file);
				}
				theApp.CopyTextToClipboard(str);
				break;
			}
			// file operations
			case MP_REMOVE:
			case MPG_DELETE:{
				if (IDNO == AfxMessageBox(GetResString(IDS_CONFIRM_FILEDELETE),MB_ICONWARNING | MB_ICONQUESTION | MB_DEFBUTTON2 | MB_YESNO))
					return TRUE;

				m_pSharedFilesCtrl->SetRedraw(FALSE);
				bool bRemovedItems = false;
				while (!selectedList.IsEmpty())
				{
					CKnownFile* myfile = selectedList.RemoveHead();
					if (!myfile || myfile->IsPartFile())
						continue;
					
					BOOL delsucc = FALSE;
					if (!PathFileExists(myfile->GetFilePath()))
						delsucc = TRUE;
					else{
						// Delete
						if (!thePrefs.GetRemoveToBin()){
							delsucc = DeleteFile(myfile->GetFilePath());
						}
						else{
							// delete to recycle bin :(
							TCHAR todel[MAX_PATH+1];
							memset(todel, 0, sizeof todel);
							_tcsncpy(todel, myfile->GetFilePath(), ARRSIZE(todel)-2);

							SHFILEOPSTRUCT fp = {0};
							fp.wFunc = FO_DELETE;
							fp.hwnd = theApp.emuledlg->m_hWnd;
							fp.pFrom = todel;
							fp.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION | FOF_SILENT;// | FOF_NOERRORUI
							delsucc = (SHFileOperation(&fp) == 0);
						}
					}
					if (delsucc){
						theApp.sharedfiles->RemoveFile(myfile);
						bRemovedItems = true;
						if (myfile->IsKindOf(RUNTIME_CLASS(CPartFile)))
							theApp.emuledlg->transferwnd->downloadlistctrl.ClearCompleted(static_cast<CPartFile*>(myfile));
					}
					else{
						CString strError;
						strError.Format( GetResString(IDS_ERR_DELFILE) + _T("\r\n\r\n%s"), myfile->GetFilePath(), GetErrorMessage(GetLastError()));
						AfxMessageBox(strError);
//.........这里部分代码省略.........

int CAICHSyncThread::Run()
{
	//MORPH START SLUGFILLER: SafeHash
	CReadWriteLock lock(&theApp.m_threadlock);
	if (!lock.ReadLock(0))
		return 0;
	// MORPH END SLUGFILLER: SafeHash
	if ( !theApp.emuledlg->IsRunning() )
		return 0;
	// we need to keep a lock on this file while the thread is running
	CSingleLock lockKnown2Met(&CAICHRecoveryHashSet::m_mutKnown2File);
	lockKnown2Met.Lock();
	
	CSafeFile file;
	bool bJustCreated = ConvertToKnown2ToKnown264(&file);
	
	// we collect all masterhashs which we find in the known2.met and store them in a list
	CList<CAICHHash> liKnown2Hashs;
	CString fullpath = thePrefs.GetMuleDirectory(EMULE_CONFIGDIR);
	fullpath.Append(KNOWN2_MET_FILENAME);
	
	CFileException fexp;
	uint32 nLastVerifiedPos = 0;

	if (!bJustCreated && !file.Open(fullpath,CFile::modeCreate|CFile::modeReadWrite|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){
		if (fexp.m_cause != CFileException::fileNotFound){
			CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file"));
			TCHAR szError[MAX_CFEXP_ERRORMSG];
			if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){
				strError += _T(" - ");
				strError += szError;
			}
			LogError(LOG_STATUSBAR, _T("%s"), strError);
		}
		return false;
	}
	try {
		if (file.GetLength() >= 1){
			uint8 header = file.ReadUInt8();
			if (header != KNOWN2_MET_VERSION){
				AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName());
			}
			//setvbuf(file.m_pStream, NULL, _IOFBF, 16384);
			uint32 nExistingSize = (UINT)file.GetLength();
			uint32 nHashCount;
			while (file.GetPosition() < nExistingSize){
				liKnown2Hashs.AddTail(CAICHHash(&file));
				nHashCount = file.ReadUInt32();
				if (file.GetPosition() + nHashCount*CAICHHash::GetHashSize() > nExistingSize){
					AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName());
				}
				// skip the rest of this hashset
				file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current);
				nLastVerifiedPos = (UINT)file.GetPosition();
			}
		}
		else
			file.WriteUInt8(KNOWN2_MET_VERSION);
	}
	catch(CFileException* error){
		if (error->m_cause == CFileException::endOfFile){
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_MET_BAD), KNOWN2_MET_FILENAME);
			// truncate the file to the size to the last verified valid pos
			try{
				file.SetLength(nLastVerifiedPos);
				if (file.GetLength() == 0){
					file.SeekToBegin();
					file.WriteUInt8(KNOWN2_MET_VERSION);
				}
			}
			catch(CFileException* error2){
				error2->Delete();
			}
		}
		else{
			TCHAR buffer[MAX_CFEXP_ERRORMSG];
			error->GetErrorMessage(buffer, ARRSIZE(buffer));
			LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer);
		}
		error->Delete();
		return false;
	}
	
	// now we check that all files which are in the sharedfilelist have a corresponding hash in out list
	// those who don'T are added to the hashinglist
	CList<CAICHHash> liUsedHashs;	
	CSingleLock sharelock(&theApp.sharedfiles->m_mutWriteList);
	sharelock.Lock();

	bool bDbgMsgCreatingPartHashs = true;
	for (int i = 0; i < theApp.sharedfiles->GetCount(); i++){
		CKnownFile* pCurFile = theApp.sharedfiles->GetFileByIndex(i);
		if (pCurFile != NULL && !pCurFile->IsPartFile() )
		{
			if (theApp.emuledlg==NULL || !theApp.emuledlg->IsRunning()) // in case of shutdown while still hashing
				return 0;
			if (pCurFile->GetFileIdentifier().HasAICHHash()){
				bool bFound = false;
				for (POSITION pos = liKnown2Hashs.GetHeadPosition();pos != 0;)
				{
//.........这里部分代码省略.........