CTelephony->NotifyChange导致程序变的很慢

[Midi]

因需要监控电话状态变更事件，开始监控后程序变得很慢，
具体特征就是按“退出”，等键都没有反应。
即使按红键退出，实际上程序还是在后台运行，整个手机都变慢
只能用工具把杀掉进程，手机才恢复正常。
即使实际AO中的处理函数什么也不做，
大家知不知道是什么原因，有什么办法解决？谢谢
在6120c， N73，N95都试过，情况一样

CPhoneAO.cpp
#include "CPhoneAO.h"

CPhoneAO::CPhoneAO() :
    CActive(EPriorityStandard), // Standard priority
    m_oLineStatusPckg(m_oLineStatus)
{
}

CPhoneAO* CPhoneAO::NewLC()
{
    CPhoneAO* self = new ( ELeave ) CPhoneAO();
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
}

CPhoneAO* CPhoneAO::NewL()
{
    CPhoneAO* self = CPhoneAO::NewLC();
    CleanupStack::Pop(); // self;
    return self;
}

void CPhoneAO::ConstructL()
{
    User::LeaveIfError(iTimer.CreateLocal() ); // Initialize timer
    CActiveScheduler::Add( this); // Add to scheduler
    m_pTelephony = CTelephony::NewL();
}

CPhoneAO::~CPhoneAO()
{
    Cancel(); // Cancel any request, if outstanding
    delete m_pTelephony;
}

void CPhoneAO::DoCancel()
{
    iTimer.Cancel();
}

void CPhoneAO::StartL()
{
    Cancel(); // Cancel any request, just to be sure
    m_pTelephony->NotifyChange(iStatus, CTelephony::EVoiceLineStatusChange,
            m_oLineStatusPckg);
    SetActive(); // Tell scheduler a request is active
}

void CPhoneAO::RunL()
{
    m_pTelephony->NotifyChange(iStatus, CTelephony::EVoiceLineStatusChange,
            m_oLineStatusPckg);
    SetActive(); // Tell scheduler a request is active
}

TInt CPhoneAO::RunError(TInt aError)
{
    return aError;
}

void CPhoneAO::Stop()
{
    Cancel();
    //m_pTelephony
}


CPhoneAO.h

#include <e32base.h>	// For CActive, link against: euser.lib
#include <e32std.h>		// For RTimer, link against: euser.lib
#include <Etel3rdParty.h>

class CPhoneAO : public CActive
{
private:
    /**
     * CTelephony对象指针，用于获取电话事件
     */
    CTelephony* m_pTelephony;
    
    /**
     * 线路状态
     */
    CTelephony::TCallStatusV1 m_oLineStatus;
    
    /**
     * 线路状态包
     */
    CTelephony::TCallStatusV1Pckg m_oLineStatusPckg;
    
public:
    // Cancel and destroy
    ~CPhoneAO();

    // Two-phased constructor.
    static CPhoneAO* NewL();

    // Two-phased constructor.
    static CPhoneAO* NewLC();

public:
    // New functions
    // Function for making the initial request
    void StartL();
    
    void Stop();

private:
    // C++ constructor
    CPhoneAO();

    // Second-phase constructor
    void ConstructL();

private:
    // From CActive
    // Handle completion
    void RunL();

    // How to cancel me
    void DoCancel();

    // Override to handle leaves from RunL(). Default implementation causes
    // the active scheduler to panic.
    TInt RunError(TInt aError);

private:
    enum TNewClassState
    {
        EUninitialized, // Uninitialized
        EInitialized, // Initalized
        EError // Error condition
    };

private:
    TInt iState; // State of the active object
    RTimer iTimer; // Provides async timing service

};


TestAppUi.cpp

void CTestAppUi::HandleCommandL(TInt aCommand)
{
    switch (aCommand)
    {
        case EEikCmdExit:
        case EAknSoftkeyExit:
            Exit();
            break;

        case ECommand1:
        {
            m_pPhoneAO = CPhoneAO::NewL();
            m_pPhoneAO->StartL();
        }
            break;
        case ECommand2:
        {
            m_pPhoneAO->Deque();
            //
        }
...

[btsy2000]

sorry,我没看出来有什么问题

[anel]

加上:
void CPhoneAO ::DoCancel()
{
iTelephony->CancelAsync( CTelephony::EVoiceLineStatusChangeCancel );
}