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SuspendSupport.cpp

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 * This file is part of openWNS (open Wireless Network Simulator)
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 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
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 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#include <WNS/ldk/SuspendSupport.hpp>
#include <WNS/ldk/SuspendedInterface.hpp>
#include <WNS/ldk/Layer.hpp>
#include <WNS/ldk/fun/FUN.hpp>
#include <WNS/probe/bus/utils.hpp>

#include <WNS/Assure.hpp>


using namespace wns::ldk;

SuspendSupport::SuspendSupport(wns::ldk::fun::FUN* _fun, const wns::pyconfig::View& _config) :
    suspending(false),
    suspended(false),
    si(NULL),
    suspendStartTime(0.0),
    useProbe(_config.get<bool>("useSuspendProbe")),
        timeBufferEmpty(wns::probe::bus::collector(_fun->getLayer()->getContextProviderCollection(),
                           _config,
                           "suspendProbeName")),
    fun(_fun),
    config(_config)
{
} // SuspendSupport


SuspendSupport::SuspendSupport(const SuspendSupport& other) :
    SuspendableInterface(),
    suspending(other.suspending),
    suspended(other.suspended),
    si(other.si),
    suspendStartTime(other.suspendStartTime),
    useProbe(other.useProbe),
    timeBufferEmpty(wns::probe::bus::collector(other.fun->getLayer()->getContextProviderCollection(),
                           other.config,
                           "suspendProbeName")),
    fun(other.fun),
    config(other.config)
{
} // SuspendSupport


SuspendSupport::~SuspendSupport()
{} // ~SuspendSupport


void
SuspendSupport::doSuspend(SuspendedInterface* _si)
{
    assure(_si, "SuspendedInterface not set");

    si = _si;
    suspending = true;
    suspended = false;

    suspendStartTime = wns::simulator::getEventScheduler()->getTime();

    trySuspend();
} // doSuspend


bool
SuspendSupport::isSuspending() const
{
    return suspending;
} // isSuspending


void
SuspendSupport::trySuspend() const
{
    if (suspending && onSuspend() && !suspended)
    {
        suspended = true;

        if (useProbe)
        {
            timeBufferEmpty->put(static_cast<double>(wns::simulator::getEventScheduler()->getTime() - suspendStartTime));
        }

        si->suspended(this);
    }
} // trySuspend

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