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248 lines
21 KiB
C++
248 lines
21 KiB
C++
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#ifndef FILESYSTEM_PASSTHRU_H
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#define FILESYSTEM_PASSTHRU_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "filesystem.h"
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#include <stdio.h>
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#include <stdarg.h>
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#ifdef AsyncRead
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#undef AsyncRead
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#undef AsyncReadMutiple
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#endif
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//
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// These classes pass all filesystem interface calls through to another filesystem
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// interface. They can be used anytime you want to override a couple things in
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// a filesystem. VMPI uses this to override the base filesystem calls while
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// allowing the rest of the filesystem functionality to work on the master.
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//
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template<class Base>
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class CInternalFileSystemPassThru : public Base
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{
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public:
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CInternalFileSystemPassThru()
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{
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m_pBaseFileSystemPassThru = NULL;
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}
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virtual void InitPassThru( IBaseFileSystem *pBaseFileSystemPassThru )
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{
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m_pBaseFileSystemPassThru = pBaseFileSystemPassThru;
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}
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virtual int Read( void* pOutput, int size, FileHandle_t file ) { return m_pBaseFileSystemPassThru->Read( pOutput, size, file ); }
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virtual int Write( void const* pInput, int size, FileHandle_t file ) { return m_pBaseFileSystemPassThru->Write( pInput, size, file ); }
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virtual FileHandle_t Open( const char *pFileName, const char *pOptions, const char *pathID ) { return m_pBaseFileSystemPassThru->Open( pFileName, pOptions, pathID ); }
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virtual void Close( FileHandle_t file ) { m_pBaseFileSystemPassThru->Close( file ); }
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virtual void Seek( FileHandle_t file, int pos, FileSystemSeek_t seekType ) { m_pBaseFileSystemPassThru->Seek( file, pos, seekType ); }
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virtual unsigned int Tell( FileHandle_t file ) { return m_pBaseFileSystemPassThru->Tell( file ); }
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virtual unsigned int Size( FileHandle_t file ) { return m_pBaseFileSystemPassThru->Size( file ); }
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virtual unsigned int Size( const char *pFileName, const char *pPathID ) { return m_pBaseFileSystemPassThru->Size( pFileName, pPathID ); }
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virtual void Flush( FileHandle_t file ) { m_pBaseFileSystemPassThru->Flush( file ); }
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virtual bool Precache( const char *pFileName, const char *pPathID ) { return m_pBaseFileSystemPassThru->Precache( pFileName, pPathID ); }
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virtual bool FileExists( const char *pFileName, const char *pPathID ) { return m_pBaseFileSystemPassThru->FileExists( pFileName, pPathID ); }
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virtual bool IsFileWritable( char const *pFileName, const char *pPathID ) { return m_pBaseFileSystemPassThru->IsFileWritable( pFileName, pPathID ); }
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virtual bool SetFileWritable( char const *pFileName, bool writable, const char *pPathID ) { return m_pBaseFileSystemPassThru->SetFileWritable( pFileName, writable, pPathID ); }
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virtual long GetFileTime( const char *pFileName, const char *pPathID ) { return m_pBaseFileSystemPassThru->GetFileTime( pFileName, pPathID ); }
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virtual bool ReadFile( const char *pFileName, const char *pPath, CUtlBuffer &buf, int nMaxBytes = 0, int nStartingByte = 0, FSAllocFunc_t pfnAlloc = NULL ) { return m_pBaseFileSystemPassThru->ReadFile( pFileName, pPath, buf, nMaxBytes, nStartingByte, pfnAlloc ); }
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virtual bool WriteFile( const char *pFileName, const char *pPath, CUtlBuffer &buf ) { return m_pBaseFileSystemPassThru->WriteFile( pFileName, pPath, buf ); }
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virtual bool UnzipFile( const char *pFileName, const char *pPath, const char *pDestination ) { return m_pBaseFileSystemPassThru->UnzipFile( pFileName, pPath, pDestination ); }
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protected:
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IBaseFileSystem *m_pBaseFileSystemPassThru;
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};
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class CBaseFileSystemPassThru : public CInternalFileSystemPassThru<IBaseFileSystem>
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{
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public:
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};
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class CFileSystemPassThru : public CInternalFileSystemPassThru<IFileSystem>
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{
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public:
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typedef CInternalFileSystemPassThru<IFileSystem> BaseClass;
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CFileSystemPassThru()
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{
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m_pFileSystemPassThru = NULL;
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}
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virtual void InitPassThru( IFileSystem *pFileSystemPassThru, bool bBaseOnly )
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{
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if ( !bBaseOnly )
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m_pFileSystemPassThru = pFileSystemPassThru;
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BaseClass::InitPassThru( pFileSystemPassThru );
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}
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// IAppSystem stuff.
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// Here's where the app systems get to learn about each other
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virtual bool Connect( CreateInterfaceFn factory ) { return m_pFileSystemPassThru->Connect( factory ); }
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virtual void Disconnect() { m_pFileSystemPassThru->Disconnect(); }
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virtual void *QueryInterface( const char *pInterfaceName ) { return m_pFileSystemPassThru->QueryInterface( pInterfaceName ); }
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virtual InitReturnVal_t Init() { return m_pFileSystemPassThru->Init(); }
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virtual void Shutdown() { m_pFileSystemPassThru->Shutdown(); }
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virtual void RemoveAllSearchPaths( void ) { m_pFileSystemPassThru->RemoveAllSearchPaths(); }
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virtual void AddSearchPath( const char *pPath, const char *pathID, SearchPathAdd_t addType ) { m_pFileSystemPassThru->AddSearchPath( pPath, pathID, addType ); }
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virtual bool RemoveSearchPath( const char *pPath, const char *pathID ) { return m_pFileSystemPassThru->RemoveSearchPath( pPath, pathID ); }
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virtual void RemoveFile( char const* pRelativePath, const char *pathID ) { m_pFileSystemPassThru->RemoveFile( pRelativePath, pathID ); }
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virtual bool RenameFile( char const *pOldPath, char const *pNewPath, const char *pathID ) { return m_pFileSystemPassThru->RenameFile( pOldPath, pNewPath, pathID ); }
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virtual void CreateDirHierarchy( const char *path, const char *pathID ) { m_pFileSystemPassThru->CreateDirHierarchy( path, pathID ); }
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virtual bool IsDirectory( const char *pFileName, const char *pathID ) { return m_pFileSystemPassThru->IsDirectory( pFileName, pathID ); }
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virtual void FileTimeToString( char* pStrip, int maxCharsIncludingTerminator, long fileTime ) { m_pFileSystemPassThru->FileTimeToString( pStrip, maxCharsIncludingTerminator, fileTime ); }
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virtual void SetBufferSize( FileHandle_t file, unsigned nBytes ) { m_pFileSystemPassThru->SetBufferSize( file, nBytes ); }
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virtual bool IsOk( FileHandle_t file ) { return m_pFileSystemPassThru->IsOk( file ); }
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virtual bool EndOfFile( FileHandle_t file ) { return m_pFileSystemPassThru->EndOfFile( file ); }
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virtual char *ReadLine( char *pOutput, int maxChars, FileHandle_t file ) { return m_pFileSystemPassThru->ReadLine( pOutput, maxChars, file ); }
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virtual int FPrintf( FileHandle_t file, const char *pFormat, ... )
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{
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char str[8192];
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va_list marker;
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va_start( marker, pFormat );
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_vsnprintf( str, sizeof( str ), pFormat, marker );
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va_end( marker );
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return m_pFileSystemPassThru->FPrintf( file, "%s", str );
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}
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virtual CSysModule *LoadModule( const char *pFileName, const char *pPathID, bool bValidatedDllOnly ) { return m_pFileSystemPassThru->LoadModule( pFileName, pPathID, bValidatedDllOnly ); }
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virtual void UnloadModule( CSysModule *pModule ) { m_pFileSystemPassThru->UnloadModule( pModule ); }
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virtual const char *FindFirst( const char *pWildCard, FileFindHandle_t *pHandle ) { return m_pFileSystemPassThru->FindFirst( pWildCard, pHandle ); }
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virtual const char *FindNext( FileFindHandle_t handle ) { return m_pFileSystemPassThru->FindNext( handle ); }
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virtual bool FindIsDirectory( FileFindHandle_t handle ) { return m_pFileSystemPassThru->FindIsDirectory( handle ); }
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virtual void FindClose( FileFindHandle_t handle ) { m_pFileSystemPassThru->FindClose( handle ); }
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virtual const char *GetLocalPath( const char *pFileName, char *pLocalPath, int localPathBufferSize ) { return m_pFileSystemPassThru->GetLocalPath( pFileName, pLocalPath, localPathBufferSize ); }
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virtual bool FullPathToRelativePath( const char *pFullpath, char *pRelative, int maxlen ) { return m_pFileSystemPassThru->FullPathToRelativePath( pFullpath, pRelative, maxlen ); }
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virtual bool GetCurrentDirectory( char* pDirectory, int maxlen ) { return m_pFileSystemPassThru->GetCurrentDirectory( pDirectory, maxlen ); }
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virtual void PrintOpenedFiles( void ) { m_pFileSystemPassThru->PrintOpenedFiles(); }
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virtual void PrintSearchPaths( void ) { m_pFileSystemPassThru->PrintSearchPaths(); }
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virtual void SetWarningFunc( void (*pfnWarning)( const char *fmt, ... ) ) { m_pFileSystemPassThru->SetWarningFunc( pfnWarning ); }
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virtual void SetWarningLevel( FileWarningLevel_t level ) { m_pFileSystemPassThru->SetWarningLevel( level ); }
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virtual void AddLoggingFunc( void (*pfnLogFunc)( const char *fileName, const char *accessType ) ){ m_pFileSystemPassThru->AddLoggingFunc( pfnLogFunc ); }
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virtual void RemoveLoggingFunc( FileSystemLoggingFunc_t logFunc ) { m_pFileSystemPassThru->RemoveLoggingFunc( logFunc ); }
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virtual FSAsyncStatus_t AsyncReadMultiple( const FileAsyncRequest_t *pRequests, int nRequests, FSAsyncControl_t *pControls ) { return m_pFileSystemPassThru->AsyncReadMultiple( pRequests, nRequests, pControls ); }
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virtual FSAsyncStatus_t AsyncReadMultipleCreditAlloc( const FileAsyncRequest_t *pRequests, int nRequests, const char *pszFile, int line, FSAsyncControl_t *pControls ) { return m_pFileSystemPassThru->AsyncReadMultipleCreditAlloc( pRequests, nRequests, pszFile, line, pControls ); }
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virtual FSAsyncStatus_t AsyncFinish(FSAsyncControl_t hControl, bool wait) { return m_pFileSystemPassThru->AsyncFinish( hControl, wait ); }
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virtual FSAsyncStatus_t AsyncGetResult( FSAsyncControl_t hControl, void **ppData, int *pSize ) { return m_pFileSystemPassThru->AsyncGetResult( hControl, ppData, pSize ); }
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virtual FSAsyncStatus_t AsyncAbort(FSAsyncControl_t hControl) { return m_pFileSystemPassThru->AsyncAbort( hControl ); }
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virtual FSAsyncStatus_t AsyncStatus(FSAsyncControl_t hControl) { return m_pFileSystemPassThru->AsyncStatus( hControl ); }
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virtual FSAsyncStatus_t AsyncFlush() { return m_pFileSystemPassThru->AsyncFlush(); }
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virtual void AsyncAddRef( FSAsyncControl_t hControl ) { m_pFileSystemPassThru->AsyncAddRef( hControl ); }
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virtual void AsyncRelease( FSAsyncControl_t hControl ) { m_pFileSystemPassThru->AsyncRelease( hControl ); }
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virtual FSAsyncStatus_t AsyncBeginRead( const char *pszFile, FSAsyncFile_t *phFile ) { return m_pFileSystemPassThru->AsyncBeginRead( pszFile, phFile ); }
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virtual FSAsyncStatus_t AsyncEndRead( FSAsyncFile_t hFile ) { return m_pFileSystemPassThru->AsyncEndRead( hFile ); }
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virtual const FileSystemStatistics *GetFilesystemStatistics() { return m_pFileSystemPassThru->GetFilesystemStatistics(); }
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virtual WaitForResourcesHandle_t WaitForResources( const char *resourcelist ) { return m_pFileSystemPassThru->WaitForResources( resourcelist ); }
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virtual bool GetWaitForResourcesProgress( WaitForResourcesHandle_t handle,
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float *progress, bool *complete ) { return m_pFileSystemPassThru->GetWaitForResourcesProgress( handle, progress, complete ); }
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virtual void CancelWaitForResources( WaitForResourcesHandle_t handle ) { m_pFileSystemPassThru->CancelWaitForResources( handle ); }
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virtual int HintResourceNeed( const char *hintlist, int forgetEverything ) { return m_pFileSystemPassThru->HintResourceNeed( hintlist, forgetEverything ); }
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virtual bool IsFileImmediatelyAvailable(const char *pFileName) { return m_pFileSystemPassThru->IsFileImmediatelyAvailable( pFileName ); }
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virtual void GetLocalCopy( const char *pFileName ) { m_pFileSystemPassThru->GetLocalCopy( pFileName ); }
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virtual FileNameHandle_t FindOrAddFileName( char const *pFileName ) { return m_pFileSystemPassThru->FindOrAddFileName( pFileName ); }
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virtual FileNameHandle_t FindFileName( char const *pFileName ) { return m_pFileSystemPassThru->FindFileName( pFileName ); }
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virtual bool String( const FileNameHandle_t& handle, char *buf, int buflen ) { return m_pFileSystemPassThru->String( handle, buf, buflen ); }
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virtual bool IsOk2( FileHandle_t file ) { return IsOk(file); }
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virtual void RemoveSearchPaths( const char *szPathID ) { m_pFileSystemPassThru->RemoveSearchPaths( szPathID ); }
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virtual bool IsSteam() const { return m_pFileSystemPassThru->IsSteam(); }
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virtual FilesystemMountRetval_t MountSteamContent( int nExtraAppId = -1 ) { return m_pFileSystemPassThru->MountSteamContent( nExtraAppId ); }
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virtual const char *FindFirstEx(
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const char *pWildCard,
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const char *pPathID,
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FileFindHandle_t *pHandle
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) { return m_pFileSystemPassThru->FindFirstEx( pWildCard, pPathID, pHandle ); }
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virtual void MarkPathIDByRequestOnly( const char *pPathID, bool bRequestOnly ) { m_pFileSystemPassThru->MarkPathIDByRequestOnly( pPathID, bRequestOnly ); }
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virtual bool AddPackFile( const char *fullpath, const char *pathID ) { return m_pFileSystemPassThru->AddPackFile( fullpath, pathID ); }
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virtual FSAsyncStatus_t AsyncAppend(const char *pFileName, const void *pSrc, int nSrcBytes, bool bFreeMemory, FSAsyncControl_t *pControl ) { return m_pFileSystemPassThru->AsyncAppend( pFileName, pSrc, nSrcBytes, bFreeMemory, pControl); }
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virtual FSAsyncStatus_t AsyncWrite(const char *pFileName, const void *pSrc, int nSrcBytes, bool bFreeMemory, bool bAppend, FSAsyncControl_t *pControl ) { return m_pFileSystemPassThru->AsyncWrite( pFileName, pSrc, nSrcBytes, bFreeMemory, bAppend, pControl); }
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virtual FSAsyncStatus_t AsyncWriteFile(const char *pFileName, const CUtlBuffer *pSrc, int nSrcBytes, bool bFreeMemory, bool bAppend, FSAsyncControl_t *pControl ) { return m_pFileSystemPassThru->AsyncWriteFile( pFileName, pSrc, nSrcBytes, bFreeMemory, bAppend, pControl); }
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virtual FSAsyncStatus_t AsyncAppendFile(const char *pDestFileName, const char *pSrcFileName, FSAsyncControl_t *pControl ) { return m_pFileSystemPassThru->AsyncAppendFile(pDestFileName, pSrcFileName, pControl); }
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virtual void AsyncFinishAll( int iToPriority ) { m_pFileSystemPassThru->AsyncFinishAll(iToPriority); }
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virtual void AsyncFinishAllWrites() { m_pFileSystemPassThru->AsyncFinishAllWrites(); }
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virtual FSAsyncStatus_t AsyncSetPriority(FSAsyncControl_t hControl, int newPriority) { return m_pFileSystemPassThru->AsyncSetPriority(hControl, newPriority); }
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virtual bool AsyncSuspend() { return m_pFileSystemPassThru->AsyncSuspend(); }
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virtual bool AsyncResume() { return m_pFileSystemPassThru->AsyncResume(); }
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virtual const char *RelativePathToFullPath( const char *pFileName, const char *pPathID, char *pLocalPath, int localPathBufferSize, PathTypeFilter_t pathFilter = FILTER_NONE, PathTypeQuery_t *pPathType = NULL ) { return m_pFileSystemPassThru->RelativePathToFullPath( pFileName, pPathID, pLocalPath, localPathBufferSize, pathFilter, pPathType ); }
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virtual void Unknown() {return;}
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virtual int GetSearchPath( const char *pathID, bool bGetPackFiles, char *pPath, int nMaxLen ) { return m_pFileSystemPassThru->GetSearchPath( pathID, bGetPackFiles, pPath, nMaxLen ); }
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virtual FileHandle_t OpenEx( const char *pFileName, const char *pOptions, unsigned flags = 0, const char *pathID = 0, char **ppszResolvedFilename = NULL ) { return m_pFileSystemPassThru->OpenEx( pFileName, pOptions, flags, pathID, ppszResolvedFilename );}
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virtual int ReadEx( void* pOutput, int destSize, int size, FileHandle_t file ) { return m_pFileSystemPassThru->ReadEx( pOutput, destSize, size, file ); }
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virtual int ReadFileEx( const char *pFileName, const char *pPath, void **ppBuf, bool bNullTerminate, bool bOptimalAlloc, int nMaxBytes = 0, int nStartingByte = 0, FSAllocFunc_t pfnAlloc = NULL ) { return m_pFileSystemPassThru->ReadFileEx( pFileName, pPath, ppBuf, bNullTerminate, bOptimalAlloc, nMaxBytes, nStartingByte, pfnAlloc ); }
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#if defined( TRACK_BLOCKING_IO )
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virtual void EnableBlockingFileAccessTracking( bool state ) { m_pFileSystemPassThru->EnableBlockingFileAccessTracking( state ); }
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virtual bool IsBlockingFileAccessEnabled() const { return m_pFileSystemPassThru->IsBlockingFileAccessEnabled(); }
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virtual IBlockingFileItemList *RetrieveBlockingFileAccessInfo() { return m_pFileSystemPassThru->RetrieveBlockingFileAccessInfo(); }
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#endif
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virtual void SetupPreloadData() {}
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virtual void DiscardPreloadData() {}
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virtual void LoadCompiledKeyValues( KeyValuesPreloadType_t type, char const *archiveFile ) { m_pFileSystemPassThru->LoadCompiledKeyValues( type, archiveFile ); }
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// If the "PreloadedData" hasn't been purged, then this'll try and instance the KeyValues using the fast path of compiled keyvalues loaded during startup.
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// Otherwise, it'll just fall through to the regular KeyValues loading routines
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virtual KeyValues *LoadKeyValues( KeyValuesPreloadType_t type, char const *filename, char const *pPathID = 0 ) { return m_pFileSystemPassThru->LoadKeyValues( type, filename, pPathID ); }
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virtual bool LoadKeyValues( KeyValues& head, KeyValuesPreloadType_t type, char const *filename, char const *pPathID = 0 ) { return m_pFileSystemPassThru->LoadKeyValues( head, type, filename, pPathID ); }
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virtual bool ExtractRootKeyName( KeyValuesPreloadType_t type, char *outbuf, size_t bufsize, char const *filename, char const *pPathID = 0 ) { return m_pFileSystemPassThru->ExtractRootKeyName( type, outbuf, bufsize, filename, pPathID ); }
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virtual bool GetFileTypeForFullPath( char const *pFullPath, wchar_t *buf, size_t bufSizeInBytes ) { return m_pFileSystemPassThru->GetFileTypeForFullPath( pFullPath, buf, bufSizeInBytes ); }
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virtual bool GetOptimalIOConstraints( FileHandle_t hFile, unsigned *pOffsetAlign, unsigned *pSizeAlign, unsigned *pBufferAlign ) { return m_pFileSystemPassThru->GetOptimalIOConstraints( hFile, pOffsetAlign, pSizeAlign, pBufferAlign ); }
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virtual void *AllocOptimalReadBuffer( FileHandle_t hFile, unsigned nSize, unsigned nOffset ) { return m_pFileSystemPassThru->AllocOptimalReadBuffer( hFile, nOffset, nSize ); }
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virtual void FreeOptimalReadBuffer( void *p ) { m_pFileSystemPassThru->FreeOptimalReadBuffer( p ); }
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virtual void BeginMapAccess() { m_pFileSystemPassThru->BeginMapAccess(); }
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virtual void EndMapAccess() { m_pFileSystemPassThru->EndMapAccess(); }
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virtual bool ReadToBuffer( FileHandle_t hFile, CUtlBuffer &buf, int nMaxBytes = 0, FSAllocFunc_t pfnAlloc = NULL ) { return m_pFileSystemPassThru->ReadToBuffer( hFile, buf, nMaxBytes, pfnAlloc ); }
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virtual bool FullPathToRelativePathEx( const char *pFullPath, const char *pPathId, char *pRelative, int nMaxLen ) { return m_pFileSystemPassThru->FullPathToRelativePathEx( pFullPath, pPathId, pRelative, nMaxLen ); }
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virtual int GetPathIndex( const FileNameHandle_t &handle ) { return m_pFileSystemPassThru->GetPathIndex( handle ); }
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virtual long GetPathTime( const char *pPath, const char *pPathID ) { return m_pFileSystemPassThru->GetPathTime( pPath, pPathID ); }
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virtual DVDMode_t GetDVDMode() { return m_pFileSystemPassThru->GetDVDMode(); }
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virtual void EnableWhitelistFileTracking( bool bEnable )
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{ m_pFileSystemPassThru->EnableWhitelistFileTracking( bEnable ); }
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virtual void RegisterFileWhitelist( IFileList *pForceMatchList, IFileList *pAllowFromDiskList, IFileList **pFilesToReload )
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{ m_pFileSystemPassThru->RegisterFileWhitelist( pForceMatchList, pAllowFromDiskList, pFilesToReload ); }
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virtual void MarkAllCRCsUnverified()
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{ m_pFileSystemPassThru->MarkAllCRCsUnverified(); }
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virtual void CacheFileCRCs( const char *pPathname, ECacheCRCType eType, IFileList *pFilter )
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{ return m_pFileSystemPassThru->CacheFileCRCs( pPathname, eType, pFilter ); }
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virtual EFileCRCStatus CheckCachedFileCRC( const char *pPathID, const char *pRelativeFilename, CRC32_t *pCRC )
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{ return m_pFileSystemPassThru->CheckCachedFileCRC( pPathID, pRelativeFilename, pCRC ); }
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virtual int GetUnverifiedCRCFiles( CUnverifiedCRCFile *pFiles, int nMaxFiles )
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{ return m_pFileSystemPassThru->GetUnverifiedCRCFiles( pFiles, nMaxFiles ); }
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virtual int GetWhitelistSpewFlags()
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{ return m_pFileSystemPassThru->GetWhitelistSpewFlags(); }
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virtual void SetWhitelistSpewFlags( int spewFlags )
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{ m_pFileSystemPassThru->SetWhitelistSpewFlags( spewFlags ); }
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virtual void InstallDirtyDiskReportFunc( FSDirtyDiskReportFunc_t func ) { m_pFileSystemPassThru->InstallDirtyDiskReportFunc( func ); }
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protected:
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IFileSystem *m_pFileSystemPassThru;
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};
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// This is so people who change the filesystem interface are forced to add the passthru wrapper into CFileSystemPassThru,
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// so they don't break VMPI.
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inline void GiveMeACompileError()
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{
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CFileSystemPassThru asdf;
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}
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#endif // FILESYSTEM_PASSTHRU_H
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