/usr/include/smbios/IObserver.h is in libsmbios-dev 2.2.28-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) 2005 Dell Inc.
* by Michael Brown <Michael_E_Brown@dell.com>
* Licensed under the Open Software License version 2.1
*
* Alternatively, you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*/
#ifndef IOBSERVER_H
#define IOBSERVER_H
// compat header should always be first header
#include "smbios/compat.h"
#include <list>
// abi_prefix should be last header included before declarations
#include "smbios/config/abi_prefix.hpp"
namespace observer
{
// forward declarations
class IObservable;
class IObserver
{
public:
virtual ~IObserver();
virtual void update( const IObservable *whatChanged, void *param = 0 ) = 0;
protected:
IObserver();
};
class IObservable
{
public:
virtual ~IObservable();
virtual void attach( IObserver * ) const;
virtual void detach( IObserver * ) const;
virtual void notify( void *param = 0 ) const;
protected:
IObservable();
private:
mutable std::list<IObserver *> observers;
};
}
// always should be last thing in header file
#include "smbios/config/abi_suffix.hpp"
#endif /* IOBSERVER_H */
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