/* -*- C++ -*-

This file implements the WorkingHardState class.

$ Author: Mirko Boehm $
$ Copyright: (C) 2005-2013 Mirko Boehm $
$ Contact: mirko@kde.org
http://www.kde.org
http://creative-destruction.me $

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.

$Id: WorkingHardState.cpp 30 2005-08-16 16:16:04Z mirko $
*/

#include "workinghardstate.h"

#include <QByteRef>

#include "job.h"
#include "thread.h"
#include "weaver.h"
#include "threadweaver.h"
#include "debuggingaids.h"

namespace ThreadWeaver
{

void WorkingHardState::activated()
{
    weaver()->reschedule();
}

WorkingHardState::WorkingHardState(Weaver *weaver)
    : WeaverImplState(weaver)
{
}

void WorkingHardState::suspend()
{
    weaver()->setState(Suspending);
}

void WorkingHardState::resume()
{
}

JobPointer WorkingHardState::applyForWork(Thread *th,  bool wasBusy)
{
    // beware: this code is executed in the applying thread!
    TWDEBUG(2, "WorkingHardState::applyForWork: thread %i applies for work in %s state.\n", th->id(),
             qPrintable(weaver()->state()->stateName()));
    JobPointer next = weaver()->takeFirstAvailableJobOrSuspendOrWait(th, wasBusy, false, false);
    if (next) {
        return next;
    } else {
        // this is no infinite recursion: the state may have changed meanwhile, or jobs may have become available:
        TWDEBUG(2, "WorkingHardState::applyForWork: repeating for thread %i in %s state.\n", th->id(),
                 qPrintable(weaver()->state()->stateName()));
        return weaver()->applyForWork(th, false);
    }
}

StateId WorkingHardState::stateId() const
{
    return WorkingHard;
}

}
