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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* $Id$
*
* Description: This is the virtual base class of all classes that can
* be the targets of wakeup events. There is only two methods,
* wakeup() and print() and no data members.
*
*/
#ifndef CONSUMER_H
#define CONSUMER_H
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/eventqueue/RubyEventQueue.hh"
class MessageBuffer;
class Consumer {
public:
// Constructors
Consumer() { m_last_scheduled_wakeup = 0; m_last_wakeup = 0; }
// Destructor
virtual ~Consumer() { }
// Public Methods - pure virtual methods
// void triggerWakeup() { Time time = g_eventQueue_ptr->getTime(); if (m_last_wakeup != time) { wakeup(); m_last_wakeup = time; }}
void triggerWakeup(RubyEventQueue * eventQueue) { Time time = eventQueue->getTime(); if (m_last_wakeup != time) { wakeup(); m_last_wakeup = time; }}
virtual void wakeup() = 0;
virtual void print(ostream& out) const = 0;
const Time& getLastScheduledWakeup() const { return m_last_scheduled_wakeup; }
void setLastScheduledWakeup(const Time& time) { m_last_scheduled_wakeup = time; }
private:
// Private Methods
// Data Members (m_ prefix)
Time m_last_scheduled_wakeup;
Time m_last_wakeup;
};
// Output operator declaration
inline extern
ostream& operator<<(ostream& out, const Consumer& obj);
// ******************* Definitions *******************
// Output operator definition
inline extern
ostream& operator<<(ostream& out, const Consumer& obj)
{
obj.print(out);
out << flush;
return out;
}
#endif //CONSUMER_H
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