You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.9 KiB
71 lines
1.9 KiB
5 years ago
|
//========= Copyright Valve Corporation, All rights reserved. ============//
|
||
|
|
//
|
||
|
|
// Purpose:
|
||
|
|
//
|
||
|
|
//=============================================================================
|
||
|
|
|
||
|
|
#ifndef FILECHANGEWATCHER_H
|
||
|
|
#define FILECHANGEWATCHER_H
|
||
|
|
#ifdef _WIN32
|
||
|
|
#pragma once
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#include "tier1/utlvector.h"
|
||
|
|
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
// Purpose: This class provides notifications of changes in directories.
|
||
|
|
// Call AddDirectory to tell it which directories to watch, then
|
||
|
|
// call Update() periodically to check for updates.
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
class CFileChangeWatcher
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
class ICallbacks
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
// Note: this is called if the file is added, removed, or modified. It's up to the app to figure out
|
||
|
|
// what it wants to do with the change.
|
||
|
|
virtual void OnFileChange( const char *pRelativeFilename, const char *pFullFilename ) = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
CFileChangeWatcher();
|
||
|
|
~CFileChangeWatcher();
|
||
|
|
|
||
|
|
void Init( ICallbacks *pCallbacks );
|
||
|
|
|
||
|
|
// pSearchPathBase would be like "c:\valve\hl2" and pDirName would be like "materials".
|
||
|
|
bool AddDirectory( const char *pSearchPathBase, const char *pDirName, bool bRecursive );
|
||
|
|
void Term();
|
||
|
|
|
||
|
|
// Call this periodically to update. It'll call your ICallbacks functions for anything it finds.
|
||
|
|
// Returns the number of updates it got.
|
||
|
|
int Update();
|
||
|
|
|
||
|
|
private:
|
||
|
|
class CDirWatch
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
char m_SearchPathBase[MAX_PATH];
|
||
|
|
char m_DirName[MAX_PATH];
|
||
|
|
char m_FullDirName[MAX_PATH];
|
||
|
|
OVERLAPPED m_Overlapped;
|
||
|
|
HANDLE m_hEvent;
|
||
|
|
HANDLE m_hDir; // Created with CreateFile.
|
||
|
|
char m_Buffer[1024 * 16];
|
||
|
|
};
|
||
|
|
|
||
|
|
void SendNotification( CFileChangeWatcher::CDirWatch *pDirWatch, const char *pRelativeFilename );
|
||
|
|
BOOL CallReadDirectoryChanges( CFileChangeWatcher::CDirWatch *pDirWatch );
|
||
|
|
|
||
|
|
private:
|
||
|
|
// Override these.
|
||
|
|
CUtlVector<CDirWatch*> m_DirWatches;
|
||
|
|
ICallbacks *m_pCallbacks;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif // FILECHANGEWATCHER_H
|