/usr/include/sipxtapi/utl/UtlObservableImpl.h is in libsipxtapi-dev 3.3.0~test17-1.
This file is owned by root:root, with mode 0o644.
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// Copyright (C) 2006 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// Copyright (C) 2006 Pingtel Corp. All rights reserved.
// Licensed to SIPfoundry under a Contributor Agreement.
//
// $$
///////////////////////////////////////////////////////////////////////////////
#ifndef _UtlObservableImpl_h_
#define _UtlObservableImpl_h_
// SYSTEM INCLUDES
// APPLICATION INCLUDES
#include "os/OsLock.h"
#include "os/OsMutex.h"
#include "utl/UtlObservable.h"
#include "utl/UtlSList.h"
// DEFINES
// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// STRUCTS
// TYPEDEFS
// FORWARD DECLARATIONS
class UtlObservableImpl : public UtlObservable
{
public:
/**
* Constructor.
*/
UtlObservableImpl();
/**
* Implementation of UtlObservable::registerObserver.
*
* @param observer The observer that wants to "listen to"
* this observable's state changes.
*/
virtual void registerObserver(UtlObserver* observer) = 0;
/**
* Implementation of UtlObservable::removeObserver.
*
* @param observer The observer that no longer wants to "listen to"
* this observable's state changes.
*/
virtual void removeObserver(UtlObserver* observer) = 0;
protected:
/**
* Implementation of UtlObservable::notify.
*
* @param code An integer notification value. For example, it
* can be used to indicate the observable's state.
* @param pUserData A reference to any object that the observable may
* pass to the observer.
*/
virtual void notify(int code, void *pUserData);
private:
/**
* Collection of observers.
*/
UtlSList mObservers;
/**
* For synchronization locking
*/
OsMutex mMutex;
};
#endif
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