监测指定路径下的文件创建活动

来源：互联网发布：域名name server 编辑：程序博客网时间：2024/05/22 06:21

头文件

#ifndef MYFSO_H#define MYFSO_H

// INCLUDES#include <e32base.h> // for CActive

// FORWARD DECLARATIONSclass RFs;

// CLASS DECLARATION

/*** CMyFSO container control class.* */class CMyFSO : public CActive { public: // public interface class MObserver { public: virtual void OnChangeL(TInt aError,const TDesC& aFileName)=0; };

public: // constructor and destructor static CMyFSO* NewL(MObserver& aObserver); ~CMyFSO(); void SetWatchDir(const TDesC& aDir); // 设置检测的文件路径

public: // new methods void NotifyAllChanges();

protected: // from CActive void DoCancel(); void RunL();

private: // constructors CMyFSO(MObserver& aObserver); void ConstructL();

private: // member variables MObserver& iObserver; RFs& iFs; TFileName iWatchDir; };

#endif

// End of File

源文件：

// INCLUDE FILES#include <f32file.h>#include <coemain.h>#include <pathinfo.h>

#include "MyFSO.h"

// ================= MEMBER FUNCTIONS =======================

CMyFSO* CMyFSO::NewL(MObserver& aObserver) { CMyFSO* myFso = new(ELeave) CMyFSO(aObserver); CleanupStack::PushL(myFso); myFso->ConstructL(); CleanupStack::Pop(); return myFso; }

CMyFSO::~CMyFSO() { Cancel(); }

void CMyFSO::NotifyAllChanges() { Cancel(); //iFs.NotifyChange(ENotifyAll, iStatus); //iWatchDir=PathInfo::MemoryCardRootPath(); //iWatchDir.Append(PathInfo::ImagesPath()); iFs.NotifyChange(ENotifyWrite,iStatus,iWatchDir); SetActive(); }

void CMyFSO::DoCancel() { iFs.NotifyChangeCancel(); }

void CMyFSO::RunL() { iObserver.OnChangeL(iStatus.Int(),iWatchDir); }

CMyFSO::CMyFSO(MObserver& aObserver) : CActive(CActive::EPriorityStandard), iObserver(aObserver), iFs(CCoeEnv::Static()->FsSession()) { }

void CMyFSO::ConstructL() { CActiveScheduler::Add(this); }

void CMyFSO::SetWatchDir(const TDesC& aDir){ iWatchDir=aDir;

}

// End of File