Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A collection of utility classes to simplify file I/O, and
// as much as possible contain portability problems. Here avoiding
// including windows.h.
//
//=============================================================================
#ifndef FILEIO_H
#define FILEIO_H
#if defined (_WIN32)
#else
#include <sys/types.h>
#include <sys/stat.h>
#if !defined( _PS3 )
#include <signal.h>
#endif // _PS3
#endif
#include "tier0/platform.h"
#include "tier1/utlstring.h"
#include "tier1/utllinkedlist.h"
const int64 k_nMillion = 1000000;
const int64 k_nThousand = 1000;
const int64 k_nKiloByte = 1024;
const int64 k_nMegabyte = k_nKiloByte * k_nKiloByte;
const int64 k_nGigabyte = k_nMegabyte * k_nKiloByte;
class CPathString
{
public:
// Constructors: Automatically fixes slashes and removes double slashes when the object is
// constructed, and then knows how to append magic \\?\ on Windows for unicode paths
CPathString( const char *pchUTF8Path );
~CPathString();
// Gets the path in UTF8
const char *GetUTF8Path();
// Gets wchar_t based path, with \\?\ pre-pended (allowing long paths on Win32, should only be used with unicode aware filesystem calls)
const wchar_t *GetWCharPathPrePended();
private:
void PopulateWCharPath();
char *m_pchUTF8Path;
wchar_t *m_pwchWideCharPathPrepended;
};
#if !defined(_PS3)
//-----------------------------------------------------------------------------
// Purpose: Encapsulates watching a directory for file changes
//-----------------------------------------------------------------------------
class CDirWatcher
{
public:
CDirWatcher();
~CDirWatcher();
// only one directory can be watched at a time
void SetDirToWatch( const char *pchDir );
// retrieve any changes
bool GetChangedFile( CUtlString *psFile );
#ifdef DBGFLAG_VALIDATE
void Validate( CValidator &validator, const char *pchName );
#endif
private:
CUtlLinkedList<CUtlString> m_listChangedFiles;
void *m_hFile;
void *m_pOverlapped;
void *m_pFileInfo;
#ifdef OSX
public:
struct timespec m_modTime;
void AddFileToChangeList( const char *pchFile );
CUtlString m_BaseDir;
private:
void *m_WatcherStream;
#endif
friend class CDirWatcherFriend;
#ifdef LINUX
void AddFileToChangeList( const char *pchFile );
#endif
#ifdef WIN32
// used by callback functions to push a file onto the list
void AddFileToChangeList( const char *pchFile );
void PostDirWatch();
#endif
};
#endif // _PS3
#endif // FILEIO_H