UpstreamNotifier.cc

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//
// The MIT License (MIT)
//
// Copyright (c) 2014-2016 Brno University of Technology, PRISTINE project
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include <UpstreamNotifier.h>

Define_Module(UpstreamNotifier);

void UpstreamNotifier::onPolicyInit()
{

}

bool UpstreamNotifier::run(RMTQueue* queue)
{
    // simple version:
    // Send out the notification when an output (N-1)-port is overflowing.

    if (queue->getLength() >= queue->getMaxLength())
    {
        if (queue->getType() == RMTQueue::OUTPUT)
        { // (N-1)-port output queues are filling up => stop accepting more PDUs
            notifySenderOfCongestion(queue->getLastPDU());
        }
    }

    return false;
}