scheduler.h

Go to the documentation of this file.

/*
 * Copyright (c) 2005 INRIA
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 */
 
#ifndef SCHEDULER_H
#define SCHEDULER_H
 
#include "object.h"
 
#include <stdint.h>
 
namespace ns3
{
 
class EventImpl;
 
class Scheduler : public Object
{
  public:
    static TypeId GetTypeId();
 
    struct EventKey
    {
        uint64_t m_ts;      
        uint32_t m_uid;     
        uint32_t m_context; 
    };
 
    struct Event
    {
        EventImpl* impl; 
        EventKey key;    
    };
 
    ~Scheduler() override = 0;
 
    virtual void Insert(const Event& ev) = 0;
    virtual bool IsEmpty() const = 0;
    virtual Event PeekNext() const = 0;
    virtual Event RemoveNext() = 0;
    virtual void Remove(const Event& ev) = 0;
};
 
inline bool
operator==(const Scheduler::EventKey& a, const Scheduler::EventKey& b)
{
    return a.m_uid == b.m_uid;
}
 
inline bool
operator!=(const Scheduler::EventKey& a, const Scheduler::EventKey& b)
{
    return a.m_uid != b.m_uid;
}
 
inline bool
operator<(const Scheduler::EventKey& a, const Scheduler::EventKey& b)
{
    if (a.m_ts < b.m_ts)
    {
        return true;
    }
    else if (a.m_ts == b.m_ts && a.m_uid < b.m_uid)
    {
        return true;
    }
    else
    {
        return false;
    }
}
 
inline bool
operator>(const Scheduler::EventKey& a, const Scheduler::EventKey& b)
{
    if (a.m_ts > b.m_ts)
    {
        return true;
    }
    else if (a.m_ts == b.m_ts && a.m_uid > b.m_uid)
    {
        return true;
    }
    else
    {
        return false;
    }
}
 
inline bool
operator==(const Scheduler::Event& a, const Scheduler::Event& b)
{
    return a.key == b.key;
}
 
inline bool
operator!=(const Scheduler::Event& a, const Scheduler::Event& b)
{
    return a.key != b.key;
}
 
inline bool
operator<(const Scheduler::Event& a, const Scheduler::Event& b)
{
    return a.key < b.key;
}
 
inline bool
operator>(const Scheduler::Event& a, const Scheduler::Event& b)
{
    return a.key > b.key;
}
 
} // namespace ns3
 
#endif /* SCHEDULER_H */