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1001 lines
35 KiB
1001 lines
35 KiB
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//===========================================================================//
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#ifndef BASEFILESYSTEM_H
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#define BASEFILESYSTEM_H
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#ifdef _WIN32
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#pragma once
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#endif
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#if defined( _WIN32 )
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#if !defined( _X360 )
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#include <io.h>
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#include <direct.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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#undef GetCurrentDirectory
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#undef GetJob
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#undef AddJob
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#include "tier0/threadtools.h"
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <malloc.h>
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#include <string.h>
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#include "tier1/utldict.h"
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#elif defined(POSIX)
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#include <unistd.h> // unlink
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#include "linux_support.h"
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#define INVALID_HANDLE_VALUE (void *)-1
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// undo the prepended "_" 's
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#define _chmod chmod
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#define _stat stat
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#define _alloca alloca
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#define _S_IFDIR S_IFDIR
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#endif
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#include <time.h>
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#include "refcount.h"
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#include "filesystem.h"
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#include "tier1/utlvector.h"
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#include <stdarg.h>
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#include "tier1/utlhashtable.h"
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#include "tier1/utlrbtree.h"
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#include "tier1/utlsymbol.h"
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#include "tier1/utllinkedlist.h"
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#include "tier1/utlstring.h"
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#include "tier1/UtlSortVector.h"
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#include "bspfile.h"
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#include "tier1/utldict.h"
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#include "tier1/tier1.h"
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#include "byteswap.h"
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#include "threadsaferefcountedobject.h"
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#include "filetracker.h"
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// #include "filesystem_init.h"
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#if defined( SUPPORT_PACKED_STORE )
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#include "vpklib/packedstore.h"
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#endif
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#include "tier0/memdbgon.h"
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#ifdef _WIN32
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#define CORRECT_PATH_SEPARATOR '\\'
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#define INCORRECT_PATH_SEPARATOR '/'
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#elif defined(POSIX)
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#define CORRECT_PATH_SEPARATOR '/'
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#define INCORRECT_PATH_SEPARATOR '\\'
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#endif
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#ifdef _WIN32
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#define PATHSEPARATOR(c) ((c) == '\\' || (c) == '/')
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#elif defined(POSIX)
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#define PATHSEPARATOR(c) ((c) == '/')
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#endif //_WIN32
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#define MAX_FILEPATH 512
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extern CUtlSymbolTableMT g_PathIDTable;
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enum FileMode_t
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{
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FM_BINARY,
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FM_TEXT
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};
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enum FileType_t
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{
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FT_NORMAL,
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FT_PACK_BINARY,
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FT_PACK_TEXT,
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FT_MEMORY_BINARY,
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FT_MEMORY_TEXT
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};
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class IThreadPool;
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class CBlockingFileItemList;
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class KeyValues;
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class CCompiledKeyValuesReader;
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class CBaseFileSystem;
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class CPackFileHandle;
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class CPackFile;
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class IFileList;
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class CFileOpenInfo;
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class CFileAsyncReadJob;
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//-----------------------------------------------------------------------------
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class CFileHandle
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{
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public:
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CFileHandle( CBaseFileSystem* fs );
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virtual ~CFileHandle();
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void Init( CBaseFileSystem* fs );
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int GetSectorSize();
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bool IsOK();
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void Flush();
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void SetBufferSize( int nBytes );
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int Read( void* pBuffer, int nLength );
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int Read( void* pBuffer, int nDestSize, int nLength );
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int Write( const void* pBuffer, int nLength );
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int Seek( int64 nOffset, int nWhence );
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int Tell();
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int Size();
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int64 AbsoluteBaseOffset();
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bool EndOfFile();
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#if !defined( _RETAIL )
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char *m_pszTrueFileName;
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char const *Name() const { return m_pszTrueFileName ? m_pszTrueFileName : ""; }
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void SetName( char const *pName )
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{
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Assert( pName );
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Assert( !m_pszTrueFileName );
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int len = Q_strlen( pName );
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m_pszTrueFileName = new char[len + 1];
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memcpy( m_pszTrueFileName, pName, len + 1 );
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}
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#endif
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CPackFileHandle *m_pPackFileHandle;
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#if defined( SUPPORT_PACKED_STORE )
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CPackedStoreFileHandle m_VPKHandle;
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#endif
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int64 m_nLength;
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FileType_t m_type;
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FILE *m_pFile;
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protected:
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CBaseFileSystem *m_fs;
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enum
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{
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MAGIC = 0x43464861, // 'CFHa',
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FREE_MAGIC = 0x4672654d // 'FreM'
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};
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unsigned int m_nMagic;
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bool IsValid();
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};
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class CMemoryFileHandle : public CFileHandle
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{
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public:
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CMemoryFileHandle( CBaseFileSystem* pFS, CMemoryFileBacking* pBacking )
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: CFileHandle( pFS ), m_pBacking( pBacking ), m_nPosition( 0 ) { m_nLength = pBacking->m_nLength; }
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~CMemoryFileHandle() { m_pBacking->Release(); }
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int Read( void* pBuffer, int nDestSize, int nLength );
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int Seek( int64 nOffset, int nWhence );
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int Tell() { return m_nPosition; }
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int Size() { return (int) m_nLength; }
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CMemoryFileBacking *m_pBacking;
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int m_nPosition;
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private:
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CMemoryFileHandle( const CMemoryFileHandle& ); // not defined
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CMemoryFileHandle& operator=( const CMemoryFileHandle& ); // not defined
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};
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//-----------------------------------------------------------------------------
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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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#ifdef SUPPORT_PACKED_STORE
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class CPackedStoreRefCount : public CPackedStore, public CRefCounted<CRefCountServiceMT>
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{
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public:
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CPackedStoreRefCount( char const *pFileBasename, char *pszFName, IBaseFileSystem *pFS );
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bool m_bSignatureValid;
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};
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#else
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class CPackedStoreRefCount : public CRefCounted<CRefCountServiceMT>
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{
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};
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#endif
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//-----------------------------------------------------------------------------
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abstract_class CBaseFileSystem : public CTier1AppSystem< IFileSystem >
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{
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friend class CPackFileHandle;
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friend class CZipPackFileHandle;
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friend class CPackFile;
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friend class CZipPackFile;
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friend class CFileHandle;
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friend class CFileTracker;
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friend class CFileTracker2;
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friend class CFileOpenInfo;
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typedef CTier1AppSystem< IFileSystem > BaseClass;
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public:
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CBaseFileSystem();
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~CBaseFileSystem();
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// Methods of IAppSystem
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virtual void *QueryInterface( const char *pInterfaceName );
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virtual InitReturnVal_t Init();
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virtual void Shutdown();
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void InitAsync();
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void ShutdownAsync();
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void ParsePathID( const char* &pFilename, const char* &pPathID, char tempPathID[MAX_PATH] );
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// file handling
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virtual FileHandle_t Open( const char *pFileName, const char *pOptions, const char *pathID );
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virtual FileHandle_t OpenEx( const char *pFileName, const char *pOptions, unsigned flags = 0, const char *pathID = 0, char **ppszResolvedFilename = NULL );
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virtual void Close( FileHandle_t );
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virtual void Seek( FileHandle_t file, int pos, FileSystemSeek_t method );
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virtual unsigned int Tell( FileHandle_t file );
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virtual unsigned int Size( FileHandle_t file );
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virtual unsigned int Size( const char *pFileName, const char *pPathID );
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virtual void SetBufferSize( FileHandle_t file, unsigned nBytes );
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virtual bool IsOk( FileHandle_t file );
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virtual void Flush( FileHandle_t file );
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virtual bool Precache( const char *pFileName, const char *pPathID );
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virtual bool EndOfFile( FileHandle_t file );
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virtual int Read( void *pOutput, int size, FileHandle_t file );
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virtual int ReadEx( void* pOutput, int sizeDest, int size, FileHandle_t file );
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virtual int Write( void const* pInput, int size, FileHandle_t file );
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virtual char *ReadLine( char *pOutput, int maxChars, FileHandle_t file );
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virtual int FPrintf( FileHandle_t file, PRINTF_FORMAT_STRING const char *pFormat, ... ) FMTFUNCTION( 3, 4 );
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// Reads/writes files to utlbuffers
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virtual bool ReadFile( const char *pFileName, const char *pPath, CUtlBuffer &buf, int nMaxBytes, int nStartingByte, FSAllocFunc_t pfnAlloc = NULL );
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virtual bool WriteFile( const char *pFileName, const char *pPath, CUtlBuffer &buf );
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virtual bool UnzipFile( const char *pFileName, const char *pPath, const char *pDestination );
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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 );
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virtual bool ReadToBuffer( FileHandle_t hFile, CUtlBuffer &buf, int nMaxBytes = 0, FSAllocFunc_t pfnAlloc = NULL );
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// Optimal buffer
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bool GetOptimalIOConstraints( FileHandle_t hFile, unsigned *pOffsetAlign, unsigned *pSizeAlign, unsigned *pBufferAlign );
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void *AllocOptimalReadBuffer( FileHandle_t hFile, unsigned nSize, unsigned nOffset ) { return malloc( nSize ); }
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void FreeOptimalReadBuffer( void *p ) { free( p ); }
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// Gets the current working directory
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virtual bool GetCurrentDirectory( char* pDirectory, int maxlen );
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// this isn't implementable on STEAM as is.
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virtual void CreateDirHierarchy( const char *path, const char *pathID );
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// returns true if the file is a directory
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virtual bool IsDirectory( const char *pFileName, const char *pathID );
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// path info
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virtual const char *GetLocalPath( const char *pFileName, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars );
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virtual bool FullPathToRelativePath( const char *pFullpath, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars );
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virtual bool GetCaseCorrectFullPath_Ptr( const char *pFullPath, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars );
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// removes a file from disk
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virtual void RemoveFile( char const* pRelativePath, const char *pathID );
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// Remove all search paths (including write path?)
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virtual void RemoveAllSearchPaths( void );
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// Purpose: Removes all search paths for a given pathID, such as all "GAME" paths.
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virtual void RemoveSearchPaths( const char *pathID );
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// STUFF FROM IFileSystem
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// Add paths in priority order (mod dir, game dir, ....)
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// Can also add pak files (errr, NOT YET!)
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virtual void AddSearchPath( const char *pPath, const char *pathID, SearchPathAdd_t addType );
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virtual bool RemoveSearchPath( const char *pPath, const char *pathID );
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virtual void PrintSearchPaths( void );
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virtual void MarkPathIDByRequestOnly( const char *pPathID, bool bRequestOnly );
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virtual bool FileExists( const char *pFileName, const char *pPathID = NULL );
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virtual long GetFileTime( const char *pFileName, const char *pPathID = NULL );
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virtual bool IsFileWritable( char const *pFileName, const char *pPathID = NULL );
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virtual bool SetFileWritable( char const *pFileName, bool writable, const char *pPathID = 0 );
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virtual void FileTimeToString( char *pString, int maxChars, long fileTime );
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virtual const char *FindFirst( const char *pWildCard, FileFindHandle_t *pHandle );
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virtual const char *FindFirstEx( const char *pWildCard, const char *pPathID, FileFindHandle_t *pHandle );
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virtual const char *FindNext( FileFindHandle_t handle );
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virtual bool FindIsDirectory( FileFindHandle_t handle );
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virtual void FindClose( FileFindHandle_t handle );
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virtual void PrintOpenedFiles( void );
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virtual void SetWarningFunc( void (*pfnWarning)( PRINTF_FORMAT_STRING const char *fmt, ... ) );
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virtual void SetWarningLevel( FileWarningLevel_t level );
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virtual void AddLoggingFunc( FileSystemLoggingFunc_t logFunc );
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virtual void RemoveLoggingFunc( FileSystemLoggingFunc_t logFunc );
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virtual bool RenameFile( char const *pOldPath, char const *pNewPath, const char *pathID );
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virtual void GetLocalCopy( const char *pFileName );
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virtual bool FixUpPath( const char *pFileName, char *pFixedUpFileName, int sizeFixedUpFileName );
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virtual FileNameHandle_t FindOrAddFileName( char const *pFileName );
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virtual FileNameHandle_t FindFileName( char const *pFileName );
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virtual bool String( const FileNameHandle_t& handle, char *buf, int buflen );
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virtual int GetPathIndex( const FileNameHandle_t &handle );
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long GetPathTime( const char *pFileName, const char *pPathID );
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virtual void EnableWhitelistFileTracking( bool bEnable, bool bCacheAllVPKHashes, bool bRecalculateAndCheckHashes );
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virtual void RegisterFileWhitelist( IPureServerWhitelist *pWhiteList, IFileList **ppFilesToReload ) OVERRIDE;
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virtual void MarkAllCRCsUnverified();
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virtual void CacheFileCRCs( const char *pPathname, ECacheCRCType eType, IFileList *pFilter );
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//void CacheFileCRCs_R( const char *pPathname, ECacheCRCType eType, IFileList *pFilter, CUtlDict<int,int> &searchPathNames );
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virtual EFileCRCStatus CheckCachedFileHash( const char *pPathID, const char *pRelativeFilename, int nFileFraction, FileHash_t *pFileHash );
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virtual int GetUnverifiedFileHashes( CUnverifiedFileHash *pFiles, int nMaxFiles );
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virtual int GetWhitelistSpewFlags();
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virtual void SetWhitelistSpewFlags( int flags );
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virtual void InstallDirtyDiskReportFunc( FSDirtyDiskReportFunc_t func );
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// Low-level file caching
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virtual FileCacheHandle_t CreateFileCache();
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virtual void AddFilesToFileCache( FileCacheHandle_t cacheId, const char **ppFileNames, int nFileNames, const char *pPathID );
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virtual bool IsFileCacheFileLoaded( FileCacheHandle_t cacheId, const char* pFileName );
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virtual bool IsFileCacheLoaded( FileCacheHandle_t cacheId );
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virtual void DestroyFileCache( FileCacheHandle_t cacheId );
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virtual void CacheAllVPKFileHashes( bool bCacheAllVPKHashes, bool bRecalculateAndCheckHashes );
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virtual bool CheckVPKFileHash( int PackFileID, int nPackFileNumber, int nFileFraction, MD5Value_t &md5Value );
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virtual void NotifyFileUnloaded( const char *pszFilename, const char *pPathId ) OVERRIDE;
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// Returns the file system statistics retreived by the implementation. Returns NULL if not supported.
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virtual const FileSystemStatistics *GetFilesystemStatistics();
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// Load dlls
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virtual CSysModule *LoadModule( const char *pFileName, const char *pPathID, bool bValidatedDllOnly );
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virtual void UnloadModule( CSysModule *pModule );
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//--------------------------------------------------------
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// asynchronous file loading
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//--------------------------------------------------------
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virtual FSAsyncStatus_t AsyncReadMultiple( const FileAsyncRequest_t *pRequests, int nRequests, FSAsyncControl_t *pControls );
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virtual FSAsyncStatus_t AsyncReadMultipleCreditAlloc( const FileAsyncRequest_t *pRequests, int nRequests, const char *pszFile, int line, FSAsyncControl_t *phControls = NULL );
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virtual FSAsyncStatus_t AsyncFinish( FSAsyncControl_t hControl, bool wait );
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virtual FSAsyncStatus_t AsyncGetResult( FSAsyncControl_t hControl, void **ppData, int *pSize );
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virtual FSAsyncStatus_t AsyncAbort( FSAsyncControl_t hControl );
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virtual FSAsyncStatus_t AsyncStatus( FSAsyncControl_t hControl );
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virtual FSAsyncStatus_t AsyncSetPriority(FSAsyncControl_t hControl, int newPriority);
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virtual FSAsyncStatus_t AsyncFlush();
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virtual FSAsyncStatus_t AsyncAppend(const char *pFileName, const void *pSrc, int nSrcBytes, bool bFreeMemory, FSAsyncControl_t *pControl) { return AsyncWrite( pFileName, pSrc, nSrcBytes, bFreeMemory, true, pControl); }
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virtual FSAsyncStatus_t AsyncWrite(const char *pFileName, const void *pSrc, int nSrcBytes, bool bFreeMemory, bool bAppend, FSAsyncControl_t *pControl);
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virtual FSAsyncStatus_t AsyncWriteFile(const char *pFileName, const CUtlBuffer *pSrc, int nSrcBytes, bool bFreeMemory, bool bAppend, FSAsyncControl_t *pControl);
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virtual FSAsyncStatus_t AsyncAppendFile(const char *pDestFileName, const char *pSrcFileName, FSAsyncControl_t *pControl);
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virtual void AsyncFinishAll( int iToPriority = INT_MIN );
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virtual void AsyncFinishAllWrites();
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virtual bool AsyncSuspend();
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virtual bool AsyncResume();
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virtual void AsyncAddRef( FSAsyncControl_t hControl );
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virtual void AsyncRelease( FSAsyncControl_t hControl );
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virtual FSAsyncStatus_t AsyncBeginRead( const char *pszFile, FSAsyncFile_t *phFile );
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virtual FSAsyncStatus_t AsyncEndRead( FSAsyncFile_t hFile );
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virtual void AsyncAddFetcher( IAsyncFileFetch *pFetcher );
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virtual void AsyncRemoveFetcher( IAsyncFileFetch *pFetcher );
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//--------------------------------------------------------
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// pack files
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//--------------------------------------------------------
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bool AddPackFile( const char *pFileName, const char *pathID );
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bool AddPackFileFromPath( const char *pPath, const char *pakfile, bool bCheckForAppendedPack, const char *pathID );
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// converts a partial path into a full path
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// can be filtered to restrict path types and can provide info about resolved path
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virtual const char *RelativePathToFullPath( const char *pFileName, const char *pPathID, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars, PathTypeFilter_t pathFilter = FILTER_NONE, PathTypeQuery_t *pPathType = NULL );
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// Returns the search path, each path is separated by ;s. Returns the length of the string returned
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virtual int GetSearchPath( const char *pathID, bool bGetPackFiles, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars );
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#if defined( TRACK_BLOCKING_IO )
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virtual void EnableBlockingFileAccessTracking( bool state );
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virtual bool IsBlockingFileAccessEnabled() const;
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virtual IBlockingFileItemList *RetrieveBlockingFileAccessInfo();
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virtual void RecordBlockingFileAccess( bool synchronous, const FileBlockingItem& item );
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virtual bool SetAllowSynchronousLogging( bool state );
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#endif
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virtual bool GetFileTypeForFullPath( char const *pFullPath, wchar_t *buf, size_t bufSizeInBytes );
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virtual void BeginMapAccess();
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virtual void EndMapAccess();
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virtual bool FullPathToRelativePathEx( const char *pFullpath, const char *pPathId, OUT_Z_CAP(maxLenInChars) char *pDest, int maxLenInChars );
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FSAsyncStatus_t SyncRead( const FileAsyncRequest_t &request );
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FSAsyncStatus_t SyncWrite(const char *pszFilename, const void *pSrc, int nSrcBytes, bool bFreeMemory, bool bAppend );
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FSAsyncStatus_t SyncAppendFile(const char *pAppendToFileName, const char *pAppendFromFileName );
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FSAsyncStatus_t SyncGetFileSize( const FileAsyncRequest_t &request );
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void DoAsyncCallback( const FileAsyncRequest_t &request, void *pData, int nBytesRead, FSAsyncStatus_t result );
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void SetupPreloadData();
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void DiscardPreloadData();
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virtual void LoadCompiledKeyValues( KeyValuesPreloadType_t type, char const *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 );
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virtual bool LoadKeyValues( KeyValues& head, KeyValuesPreloadType_t type, char const *filename, char const *pPathID = 0 );
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|
virtual bool ExtractRootKeyName( KeyValuesPreloadType_t type, char *outbuf, size_t bufsize, char const *filename, char const *pPathID = 0 );
|
|
|
|
virtual DVDMode_t GetDVDMode() { return m_DVDMode; }
|
|
|
|
FSDirtyDiskReportFunc_t GetDirtyDiskReportFunc() { return m_DirtyDiskReportFunc; }
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// MemoryFile cache implementation
|
|
//-----------------------------------------------------------------------------
|
|
class CFileCacheObject;
|
|
|
|
// XXX For now, we assume that all path IDs are "GAME", never cache files
|
|
// outside of the game search path, and preferentially return those files
|
|
// whenever anyone searches for a match even if an on-disk file in another
|
|
// folder would have been found first in a traditional search. extending
|
|
// the memory cache to cover non-game files isn't necessary right now, but
|
|
// should just be a matter of defining a more complex key type. (henryg)
|
|
|
|
// Register a CMemoryFileBacking; must balance with UnregisterMemoryFile.
|
|
// Returns false and outputs an ref-bumped pointer to the existing entry
|
|
// if the same file has already been registered by someone else; this must
|
|
// be Unregistered to maintain the balance.
|
|
virtual bool RegisterMemoryFile( CMemoryFileBacking *pFile, CMemoryFileBacking **ppExistingFileWithRef );
|
|
|
|
// Unregister a CMemoryFileBacking; must balance with RegisterMemoryFile.
|
|
virtual void UnregisterMemoryFile( CMemoryFileBacking *pFile );
|
|
|
|
//------------------------------------
|
|
// Synchronous path for file operations
|
|
//------------------------------------
|
|
class CPathIDInfo
|
|
{
|
|
public:
|
|
const CUtlSymbol& GetPathID() const;
|
|
const char* GetPathIDString() const;
|
|
void SetPathID( CUtlSymbol id );
|
|
|
|
public:
|
|
// See MarkPathIDByRequestOnly.
|
|
bool m_bByRequestOnly;
|
|
|
|
private:
|
|
CUtlSymbol m_PathID;
|
|
const char *m_pDebugPathID;
|
|
};
|
|
|
|
////////////////////////////////////////////////
|
|
// IMPLEMENTATION DETAILS FOR CBaseFileSystem //
|
|
////////////////////////////////////////////////
|
|
|
|
class CSearchPath
|
|
{
|
|
public:
|
|
CSearchPath( void );
|
|
~CSearchPath( void );
|
|
|
|
const char* GetPathString() const;
|
|
const char* GetDebugString() const;
|
|
|
|
// Path ID ("game", "mod", "gamebin") accessors.
|
|
const CUtlSymbol& GetPathID() const;
|
|
const char* GetPathIDString() const;
|
|
|
|
// Search path (c:\hl2\hl2) accessors.
|
|
void SetPath( CUtlSymbol id );
|
|
const CUtlSymbol& GetPath() const;
|
|
|
|
void SetPackFile(CPackFile *pPackFile) { m_pPackFile = pPackFile; }
|
|
CPackFile *GetPackFile() const { return m_pPackFile; }
|
|
|
|
#ifdef SUPPORT_PACKED_STORE
|
|
void SetPackedStore( CPackedStoreRefCount *pPackedStore ) { m_pPackedStore = pPackedStore; }
|
|
#endif
|
|
CPackedStoreRefCount *GetPackedStore() const { return m_pPackedStore; }
|
|
|
|
bool IsMapPath() const;
|
|
|
|
int m_storeId;
|
|
|
|
// Used to track if its search
|
|
CPathIDInfo *m_pPathIDInfo;
|
|
|
|
bool m_bIsRemotePath;
|
|
|
|
bool m_bIsTrustedForPureServer;
|
|
|
|
private:
|
|
CUtlSymbol m_Path;
|
|
const char *m_pDebugPath;
|
|
CPackFile *m_pPackFile;
|
|
CPackedStoreRefCount *m_pPackedStore;
|
|
};
|
|
|
|
class CSearchPathsVisits
|
|
{
|
|
public:
|
|
void Reset()
|
|
{
|
|
m_Visits.RemoveAll();
|
|
}
|
|
|
|
bool MarkVisit( const CSearchPath &searchPath )
|
|
{
|
|
if ( m_Visits.Find( searchPath.m_storeId ) == m_Visits.InvalidIndex() )
|
|
{
|
|
MEM_ALLOC_CREDIT();
|
|
m_Visits.AddToTail( searchPath.m_storeId );
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
CUtlVector<int> m_Visits; // This is a copy of IDs for the search paths we've visited, so
|
|
};
|
|
|
|
class CSearchPathsIterator
|
|
{
|
|
public:
|
|
CSearchPathsIterator( CBaseFileSystem *pFileSystem, const char **ppszFilename, const char *pszPathID, PathTypeFilter_t pathTypeFilter = FILTER_NONE )
|
|
: m_iCurrent( -1 ),
|
|
m_PathTypeFilter( pathTypeFilter )
|
|
{
|
|
char tempPathID[MAX_PATH];
|
|
if ( *ppszFilename && (*ppszFilename)[0] == '/' && (*ppszFilename)[1] == '/' ) // ONLY '//' (and not '\\') for our special format
|
|
{
|
|
// Allow for UNC-type syntax to specify the path ID.
|
|
pFileSystem->ParsePathID( *ppszFilename, pszPathID, tempPathID );
|
|
}
|
|
if ( pszPathID )
|
|
{
|
|
m_pathID = g_PathIDTable.AddString( pszPathID );
|
|
}
|
|
else
|
|
{
|
|
m_pathID = UTL_INVAL_SYMBOL;
|
|
}
|
|
|
|
if ( *ppszFilename && !Q_IsAbsolutePath( *ppszFilename ) )
|
|
{
|
|
// Copy paths to minimize mutex lock time
|
|
pFileSystem->m_SearchPathsMutex.Lock();
|
|
CopySearchPaths( pFileSystem->m_SearchPaths );
|
|
pFileSystem->m_SearchPathsMutex.Unlock();
|
|
|
|
pFileSystem->FixUpPath ( *ppszFilename, m_Filename, sizeof( m_Filename ) );
|
|
}
|
|
else
|
|
{
|
|
// If it's an absolute path, it isn't worth using the paths at all. Simplify
|
|
// client logic by pretending there's a search path of 1
|
|
m_EmptyPathIDInfo.m_bByRequestOnly = false;
|
|
m_EmptySearchPath.m_pPathIDInfo = &m_EmptyPathIDInfo;
|
|
m_EmptySearchPath.SetPath( m_pathID );
|
|
m_EmptySearchPath.m_storeId = -1;
|
|
m_Filename[0] = '\0';
|
|
}
|
|
}
|
|
|
|
CSearchPathsIterator( CBaseFileSystem *pFileSystem, const char *pszPathID, PathTypeFilter_t pathTypeFilter = FILTER_NONE )
|
|
: m_iCurrent( -1 ),
|
|
m_PathTypeFilter( pathTypeFilter )
|
|
{
|
|
if ( pszPathID )
|
|
{
|
|
m_pathID = g_PathIDTable.AddString( pszPathID );
|
|
}
|
|
else
|
|
{
|
|
m_pathID = UTL_INVAL_SYMBOL;
|
|
}
|
|
// Copy paths to minimize mutex lock time
|
|
pFileSystem->m_SearchPathsMutex.Lock();
|
|
CopySearchPaths( pFileSystem->m_SearchPaths );
|
|
pFileSystem->m_SearchPathsMutex.Unlock();
|
|
m_Filename[0] = '\0';
|
|
}
|
|
|
|
CSearchPath *GetFirst();
|
|
CSearchPath *GetNext();
|
|
|
|
private:
|
|
CSearchPathsIterator( const CSearchPathsIterator & );
|
|
void operator=(const CSearchPathsIterator &);
|
|
void CopySearchPaths( const CUtlVector<CSearchPath> &searchPaths );
|
|
|
|
int m_iCurrent;
|
|
CUtlSymbol m_pathID;
|
|
CUtlVector<CSearchPath> m_SearchPaths;
|
|
CSearchPathsVisits m_visits;
|
|
CSearchPath m_EmptySearchPath;
|
|
CPathIDInfo m_EmptyPathIDInfo;
|
|
PathTypeFilter_t m_PathTypeFilter;
|
|
char m_Filename[MAX_PATH]; // set for relative names only
|
|
};
|
|
|
|
friend class CSearchPathsIterator;
|
|
|
|
struct FindData_t
|
|
{
|
|
WIN32_FIND_DATA findData;
|
|
int currentSearchPathID;
|
|
CUtlVector<char> wildCardString;
|
|
HANDLE findHandle;
|
|
CSearchPathsVisits m_VisitedSearchPaths; // This is a copy of IDs for the search paths we've visited, so avoids searching duplicate paths.
|
|
int m_CurrentStoreID; // CSearchPath::m_storeId of the current search path.
|
|
|
|
CUtlSymbol m_FilterPathID; // What path ID are we looking at? Ignore all others. (Only set by FindFirstEx).
|
|
|
|
CUtlDict<int,int> m_VisitedFiles; // We go through the search paths in priority order, and we use this to make sure
|
|
// that we don't return the same file more than once.
|
|
CUtlStringList m_fileMatchesFromVPKOrPak;
|
|
CUtlStringList m_dirMatchesFromVPKOrPak;
|
|
};
|
|
|
|
friend class CSearchPath;
|
|
|
|
IPureServerWhitelist *m_pPureServerWhitelist;
|
|
int m_WhitelistSpewFlags; // Combination of WHITELIST_SPEW_ flags.
|
|
|
|
// logging functions
|
|
CUtlVector< FileSystemLoggingFunc_t > m_LogFuncs;
|
|
|
|
CThreadMutex m_SearchPathsMutex;
|
|
CUtlVector< CSearchPath > m_SearchPaths;
|
|
CUtlVector<CPathIDInfo*> m_PathIDInfos;
|
|
CUtlLinkedList<FindData_t> m_FindData;
|
|
|
|
CSearchPath *FindSearchPathByStoreId( int storeId );
|
|
|
|
int m_iMapLoad;
|
|
|
|
// Global list of pack file handles
|
|
CUtlVector<CPackFile *> m_ZipFiles;
|
|
|
|
FILE *m_pLogFile;
|
|
bool m_bOutputDebugString;
|
|
|
|
IThreadPool * m_pThreadPool;
|
|
CThreadFastMutex m_AsyncCallbackMutex;
|
|
|
|
// Statistics:
|
|
FileSystemStatistics m_Stats;
|
|
|
|
#if defined( TRACK_BLOCKING_IO )
|
|
CBlockingFileItemList *m_pBlockingItems;
|
|
bool m_bBlockingFileAccessReportingEnabled;
|
|
bool m_bAllowSynchronousLogging;
|
|
|
|
friend class CBlockingFileItemList;
|
|
friend class CAutoBlockReporter;
|
|
#endif
|
|
|
|
CFileTracker2 m_FileTracker2;
|
|
|
|
protected:
|
|
//----------------------------------------------------------------------------
|
|
// Purpose: Functions implementing basic file system behavior.
|
|
//----------------------------------------------------------------------------
|
|
virtual FILE *FS_fopen( const char *filename, const char *options, unsigned flags, int64 *size ) = 0;
|
|
virtual void FS_setbufsize( FILE *fp, unsigned nBytes ) = 0;
|
|
virtual void FS_fclose( FILE *fp ) = 0;
|
|
virtual void FS_fseek( FILE *fp, int64 pos, int seekType ) = 0;
|
|
virtual long FS_ftell( FILE *fp ) = 0;
|
|
virtual int FS_feof( FILE *fp ) = 0;
|
|
size_t FS_fread( void *dest, size_t size, FILE *fp ) { return FS_fread( dest, (size_t)-1, size, fp ); }
|
|
virtual size_t FS_fread( void *dest, size_t destSize, size_t size, FILE *fp ) = 0;
|
|
virtual size_t FS_fwrite( const void *src, size_t size, FILE *fp ) = 0;
|
|
virtual bool FS_setmode( FILE *fp, FileMode_t mode ) { return false; }
|
|
virtual size_t FS_vfprintf( FILE *fp, const char *fmt, va_list list ) = 0;
|
|
virtual int FS_ferror( FILE *fp ) = 0;
|
|
virtual int FS_fflush( FILE *fp ) = 0;
|
|
virtual char *FS_fgets( char *dest, int destSize, FILE *fp ) = 0;
|
|
virtual int FS_stat( const char *path, struct _stat *buf, bool *pbLoadedFromSteamCache=NULL ) = 0;
|
|
virtual int FS_chmod( const char *path, int pmode ) = 0;
|
|
virtual HANDLE FS_FindFirstFile( const char *findname, WIN32_FIND_DATA *dat) = 0;
|
|
virtual bool FS_FindNextFile(HANDLE handle, WIN32_FIND_DATA *dat) = 0;
|
|
virtual bool FS_FindClose(HANDLE handle) = 0;
|
|
virtual int FS_GetSectorSize( FILE * ) { return 1; }
|
|
|
|
#if defined( TRACK_BLOCKING_IO )
|
|
void BlockingFileAccess_EnterCriticalSection();
|
|
void BlockingFileAccess_LeaveCriticalSection();
|
|
|
|
CThreadMutex m_BlockingFileMutex;
|
|
|
|
#endif
|
|
|
|
void GetFileNameForHandle( FileHandle_t handle, char *buf, size_t buflen );
|
|
|
|
protected:
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: For tracking unclosed files
|
|
// NOTE: The symbol table could take up memory that we don't want to eat here.
|
|
// In that case, we shouldn't store them in a table, or we should store them as locally allocates stings
|
|
// so we can control the size
|
|
//-----------------------------------------------------------------------------
|
|
class COpenedFile
|
|
{
|
|
public:
|
|
COpenedFile( void );
|
|
~COpenedFile( void );
|
|
|
|
COpenedFile( const COpenedFile& src );
|
|
|
|
bool operator==( const COpenedFile& src ) const;
|
|
|
|
void SetName( char const *name );
|
|
char const *GetName( void );
|
|
|
|
FILE *m_pFile;
|
|
char *m_pName;
|
|
};
|
|
|
|
CThreadFastMutex m_MemoryFileMutex;
|
|
CUtlHashtable< const char*, CMemoryFileBacking* > m_MemoryFileHash;
|
|
|
|
|
|
//CUtlRBTree< COpenedFile, int > m_OpenedFiles;
|
|
CThreadMutex m_OpenedFilesMutex;
|
|
CUtlVector <COpenedFile> m_OpenedFiles;
|
|
|
|
static bool OpenedFileLessFunc( COpenedFile const& src1, COpenedFile const& src2 );
|
|
|
|
FileWarningLevel_t m_fwLevel;
|
|
void (*m_pfnWarning)( PRINTF_FORMAT_STRING const char *fmt, ... );
|
|
|
|
FILE *Trace_FOpen( const char *filename, const char *options, unsigned flags, int64 *size );
|
|
void Trace_FClose( FILE *fp );
|
|
void Trace_FRead( int size, FILE* file );
|
|
void Trace_FWrite( int size, FILE* file );
|
|
|
|
void Trace_DumpUnclosedFiles( void );
|
|
|
|
public:
|
|
void LogAccessToFile( char const *accesstype, char const *fullpath, char const *options );
|
|
void Warning( FileWarningLevel_t level, PRINTF_FORMAT_STRING const char *fmt, ... );
|
|
|
|
protected:
|
|
// Note: if pFoundStoreID is passed in, then it will set that to the CSearchPath::m_storeId value of the search path it found the file in.
|
|
const char* FindFirstHelper( const char *pWildCard, const char *pPathID, FileFindHandle_t *pHandle, int *pFoundStoreID );
|
|
bool FindNextFileHelper( FindData_t *pFindData, int *pFoundStoreID );
|
|
bool FindNextFileInVPKOrPakHelper( FindData_t *pFindData );
|
|
|
|
void RemoveAllMapSearchPaths( void );
|
|
void AddMapPackFile( const char *pPath, const char *pPathID, SearchPathAdd_t addType );
|
|
void AddPackFiles( const char *pPath, const CUtlSymbol &pathID, SearchPathAdd_t addType );
|
|
bool PreparePackFile( CPackFile &packfile, int offsetofpackinmetafile, int64 filelen );
|
|
void AddVPKFile( const char *pPath, const char *pPathID, SearchPathAdd_t addType );
|
|
bool RemoveVPKFile( const char *pPath, const char *pPathID );
|
|
|
|
void HandleOpenRegularFile( CFileOpenInfo &openInfo, bool bIsAbsolutePath );
|
|
|
|
FileHandle_t FindFileInSearchPath( CFileOpenInfo &openInfo );
|
|
long FastFileTime( const CSearchPath *path, const char *pFileName );
|
|
|
|
const char *GetWritePath( const char *pFilename, const char *pathID );
|
|
|
|
// Computes a full write path
|
|
void ComputeFullWritePath( char* pDest, int maxlen, const char *pWritePathID, char const *pRelativePath );
|
|
|
|
void AddSearchPathInternal( const char *pPath, const char *pathID, SearchPathAdd_t addType, bool bAddPackFiles );
|
|
|
|
// Opens a file for read or write
|
|
FileHandle_t OpenForRead( const char *pFileName, const char *pOptions, unsigned flags, const char *pathID, char **ppszResolvedFilename = NULL );
|
|
FileHandle_t OpenForWrite( const char *pFileName, const char *pOptions, const char *pathID );
|
|
CSearchPath *FindWritePath( const char *pFilename, const char *pathID );
|
|
|
|
// Helper function for fs_log file logging
|
|
void LogFileAccess( const char *pFullFileName );
|
|
bool LookupKeyValuesRootKeyName( char const *filename, char const *pPathID, char *rootName, size_t bufsize );
|
|
void UnloadCompiledKeyValues();
|
|
|
|
// If bByRequestOnly is -1, then it will default to false if it doesn't already exist, and it
|
|
// won't change it if it does already exist. Otherwise, it will be set to the value of bByRequestOnly.
|
|
CPathIDInfo* FindOrAddPathIDInfo( const CUtlSymbol &id, int bByRequestOnly );
|
|
static bool FilterByPathID( const CSearchPath *pSearchPath, const CUtlSymbol &pathID );
|
|
|
|
// Global/shared filename/path table
|
|
CUtlFilenameSymbolTable m_FileNames;
|
|
|
|
int m_WhitelistFileTrackingEnabled; // -1 if unset, 0 if disabled (single player), 1 if enabled (multiplayer).
|
|
FSDirtyDiskReportFunc_t m_DirtyDiskReportFunc;
|
|
|
|
void SetSearchPathIsTrustedSource( CSearchPath *pPath );
|
|
|
|
struct CompiledKeyValuesPreloaders_t
|
|
{
|
|
CompiledKeyValuesPreloaders_t() :
|
|
m_CacheFile( 0 ),
|
|
m_pReader( 0 )
|
|
{
|
|
}
|
|
FileNameHandle_t m_CacheFile;
|
|
CCompiledKeyValuesReader *m_pReader;
|
|
};
|
|
|
|
CompiledKeyValuesPreloaders_t m_PreloadData[ NUM_PRELOAD_TYPES ];
|
|
|
|
static CUtlSymbol m_GamePathID;
|
|
static CUtlSymbol m_BSPPathID;
|
|
|
|
static DVDMode_t m_DVDMode;
|
|
|
|
// Pack exclude paths are strictly for 360 to allow holes in search paths and pack files
|
|
// which fall through to support new or dynamic data on the host pc.
|
|
static CUtlVector< FileNameHandle_t > m_ExcludePaths;
|
|
|
|
/// List of installed hooks to intercept async file operations
|
|
CUtlVector< IAsyncFileFetch * > m_vecAsyncFetchers;
|
|
|
|
/// List of active async jobs being serviced by customer fetchers
|
|
CUtlVector< CFileAsyncReadJob * > m_vecAsyncCustomFetchJobs;
|
|
|
|
/// Remove a custom fetch job from the list (and release our reference)
|
|
friend class CFileAsyncReadJob;
|
|
void RemoveAsyncCustomFetchJob( CFileAsyncReadJob *pJob );
|
|
};
|
|
|
|
inline const CUtlSymbol& CBaseFileSystem::CPathIDInfo::GetPathID() const
|
|
{
|
|
return m_PathID;
|
|
}
|
|
|
|
|
|
inline const char* CBaseFileSystem::CPathIDInfo::GetPathIDString() const
|
|
{
|
|
return g_PathIDTable.String( m_PathID );
|
|
}
|
|
|
|
|
|
inline const char* CBaseFileSystem::CSearchPath::GetPathString() const
|
|
{
|
|
return g_PathIDTable.String( m_Path );
|
|
}
|
|
|
|
|
|
inline void CBaseFileSystem::CPathIDInfo::SetPathID( CUtlSymbol sym )
|
|
{
|
|
m_PathID = sym;
|
|
m_pDebugPathID = GetPathIDString();
|
|
}
|
|
|
|
|
|
inline const CUtlSymbol& CBaseFileSystem::CSearchPath::GetPathID() const
|
|
{
|
|
return m_pPathIDInfo->GetPathID();
|
|
}
|
|
|
|
|
|
inline const char* CBaseFileSystem::CSearchPath::GetPathIDString() const
|
|
{
|
|
return m_pPathIDInfo->GetPathIDString();
|
|
}
|
|
|
|
|
|
inline void CBaseFileSystem::CSearchPath::SetPath( CUtlSymbol id )
|
|
{
|
|
m_Path = id;
|
|
m_pDebugPath = g_PathIDTable.String( m_Path );
|
|
}
|
|
|
|
|
|
inline const CUtlSymbol& CBaseFileSystem::CSearchPath::GetPath() const
|
|
{
|
|
return m_Path;
|
|
}
|
|
|
|
|
|
inline bool CBaseFileSystem::FilterByPathID( const CSearchPath *pSearchPath, const CUtlSymbol &pathID )
|
|
{
|
|
if ( (UtlSymId_t)pathID == UTL_INVAL_SYMBOL )
|
|
{
|
|
// They didn't specify a specific search path, so if this search path's path ID is by
|
|
// request only, then ignore it.
|
|
return pSearchPath->m_pPathIDInfo->m_bByRequestOnly;
|
|
}
|
|
else
|
|
{
|
|
// Bit of a hack, but specifying "BSP" as the search path will search in "GAME" for only the map/.bsp pack file path
|
|
if ( pathID == m_BSPPathID )
|
|
{
|
|
if ( pSearchPath->GetPathID() != m_GamePathID )
|
|
return true;
|
|
|
|
if ( !pSearchPath->GetPackFile() )
|
|
return true;
|
|
|
|
if ( !pSearchPath->IsMapPath() )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
return (pSearchPath->GetPathID() != pathID);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if defined( TRACK_BLOCKING_IO )
|
|
|
|
class CAutoBlockReporter
|
|
{
|
|
public:
|
|
|
|
CAutoBlockReporter( CBaseFileSystem *fs, bool synchronous, char const *filename, int eBlockType, int nTypeOfAccess ) :
|
|
m_pFS( fs ),
|
|
m_Item( eBlockType, filename, 0.0f, nTypeOfAccess ),
|
|
m_bSynchronous( synchronous )
|
|
{
|
|
Assert( m_pFS );
|
|
m_Timer.Start();
|
|
}
|
|
|
|
CAutoBlockReporter( CBaseFileSystem *fs, bool synchronous, FileHandle_t handle, int eBlockType, int nTypeOfAccess ) :
|
|
m_pFS( fs ),
|
|
m_Item( eBlockType, NULL, 0.0f, nTypeOfAccess ),
|
|
m_bSynchronous( synchronous )
|
|
{
|
|
Assert( m_pFS );
|
|
char name[ 512 ];
|
|
m_pFS->GetFileNameForHandle( handle, name, sizeof( name ) );
|
|
m_Item.SetFileName( name );
|
|
m_Timer.Start();
|
|
}
|
|
|
|
~CAutoBlockReporter()
|
|
{
|
|
m_Timer.End();
|
|
m_Item.m_flElapsed = m_Timer.GetDuration().GetSeconds();
|
|
m_pFS->RecordBlockingFileAccess( m_bSynchronous, m_Item );
|
|
}
|
|
|
|
private:
|
|
|
|
CBaseFileSystem *m_pFS;
|
|
|
|
CFastTimer m_Timer;
|
|
FileBlockingItem m_Item;
|
|
bool m_bSynchronous;
|
|
};
|
|
|
|
#define AUTOBLOCKREPORTER_FN( name, fs, sync, filename, blockType, accessType ) CAutoBlockReporter block##name( fs, sync, filename, blockType, accessType );
|
|
#define AUTOBLOCKREPORTER_FH( name, fs, sync, handle, blockType, accessType ) CAutoBlockReporter block##name( fs, sync, handle, blockType, accessType );
|
|
|
|
#else
|
|
|
|
#define AUTOBLOCKREPORTER_FN( name, fs, sync, filename, blockType, accessType ) // Nothing
|
|
#define AUTOBLOCKREPORTER_FH( name, fs, sync, handle , blockType, accessType ) // Nothing
|
|
|
|
#endif
|
|
|
|
// singleton accessor
|
|
CBaseFileSystem *BaseFileSystem();
|
|
|
|
#include "tier0/memdbgoff.h"
|
|
|
|
#endif // BASEFILESYSTEM_H
|