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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.
*/
#include <cassert>
#include "mem/ruby/common/Consumer.hh"
#include "mem/ruby/eventqueue/RubyEventQueue.hh"
#include "mem/ruby/eventqueue/RubyEventQueueNode.hh"
RubyEventQueue::RubyEventQueue(EventQueue* eventq, Tick _clock)
: EventManager(eventq), m_clock(_clock)
{
}
RubyEventQueue::~RubyEventQueue()
{
}
void
RubyEventQueue::scheduleEvent(Consumer* consumer, Time timeDelta)
{
scheduleEventAbsolute(consumer, timeDelta + getTime());
}
void
RubyEventQueue::scheduleEventAbsolute(Consumer* consumer, Time timeAbs)
{
// Check to see if this is a redundant wakeup
assert(consumer != NULL);
if (!consumer->alreadyScheduled(timeAbs)) {
// This wakeup is not redundant
RubyEventQueueNode *thisNode = new RubyEventQueueNode(consumer, this);
assert(timeAbs > getTime());
schedule(thisNode, (timeAbs * m_clock));
consumer->insertScheduledWakeupTime(timeAbs);
}
}
void
RubyEventQueue::print(std::ostream& out) const
{
out << "[Event Queue:]";
}
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