RTTimerList.h

/*
 * Licensed Materials - Property of HCL and/or IBM
 * Copyright HCL Technologies Ltd. 2016, 2021. All Rights Reserved.
 * Copyright IBM Corporation 1999, 2016. All Rights Reserved.
 *
 * U.S. Government Users Restricted Rights -  Use, duplication or 
 * disclosure restricted by GSA ADP Schedule.
 */
 
#ifndef __RTTimerList_h__
#define __RTTimerList_h__ included
 
#ifdef PRAGMA
#pragma interface
#endif
 
#ifndef __RTConfig_h__
#include <RTConfig.h>
#endif
 
class  RTController;
class  RTTimerNode;
struct RTTimespec;
 
class RTTimerList
{
public:
             RTTimerList( void );
             ~RTTimerList( void );
 
    // How many entries are in the list?
    RTS_INLINE int   length( void ) const;
 
    // Add node to list. Return true iff new node is at head of list.
    int              insert( RTTimerNode * );
 
    // Remove a specific entry in the list.
    void             remove( RTTimerNode * );
 
    // Cancel all entries in the list.
    void             cancelAll( RTController * );
 
    // Expire all timeouts that should have occured by 'now'.
    void             expire( const RTTimespec & now, RTController * );
 
    // Fetch the earliest time in the list.
    void             headTime( RTTimespec & ) const;
 
    class Link
    {
    public:
    RTS_INLINE   Link( void );
 
    private:
    friend class RTTimerList;
 
    unsigned     index;
    };
 
private:
    RTTimerNode   ** nodes;
    unsigned         space;
    unsigned         used;
 
    // unavailable methods
    RTTimerList( const RTTimerList & );
    RTTimerList & operator=( const RTTimerList & );
};
 
#if RTS_INLINES
#include <RTTimerList.inl>
#endif
 
#endif // __RTTimerList_h__