plasma-framework/private/runnerjobs.cpp

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/*
* Copyright (C) 2007, 2009 Ryan P. Bitanga <ryan.bitanga@gmail.com>
*
* This program 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, or
* (at your option) any later version.
*
* This program 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 General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "runnerjobs_p.h"
#include <QTimer>
#include <kdebug.h>
//#include <Weaver/DebuggingAids.h>
#include <Weaver/ThreadWeaver.h>
#include "runnermanager.h"
#include "plasma/querymatch.h"
using ThreadWeaver::Job;
using ThreadWeaver::Weaver;
namespace Plasma {
DelayedRunnerPolicy::DelayedRunnerPolicy()
: QueuePolicy()
{}
DelayedRunnerPolicy::~DelayedRunnerPolicy()
{}
DelayedRunnerPolicy& DelayedRunnerPolicy::instance()
{
static DelayedRunnerPolicy policy;
return policy;
}
bool DelayedRunnerPolicy::canRun(Job *job)
{
FindMatchesJob *aJob = static_cast<FindMatchesJob*>(job);
if (QTimer *t = aJob->delayTimer()) {
// If the timer is active, the required delay has not been reached
//kDebug() << "delayed timer" << aJob->runner()->name() << !t->isActive();
return !t->isActive();
}
return true;
}
void DelayedRunnerPolicy::free(Job *job)
{
Q_UNUSED(job)
}
void DelayedRunnerPolicy::release(Job *job)
{
free(job);
}
void DelayedRunnerPolicy::destructed(Job *job)
{
Q_UNUSED(job)
}
DefaultRunnerPolicy::DefaultRunnerPolicy()
: QueuePolicy(),
m_cap(2)
{}
DefaultRunnerPolicy::~DefaultRunnerPolicy()
{}
DefaultRunnerPolicy& DefaultRunnerPolicy::instance()
{
static DefaultRunnerPolicy policy;
return policy;
}
bool DefaultRunnerPolicy::canRun(Job *job)
{
Plasma::AbstractRunner *runner = static_cast<FindMatchesJob*>(job)->runner();
QMutexLocker l(&m_mutex);
if (m_runCounts[runner->name()] > m_cap) {
return false;
} else {
++m_runCounts[runner->name()];
return true;
}
}
void DefaultRunnerPolicy::free(Job *job)
{
Plasma::AbstractRunner *runner = static_cast<FindMatchesJob*>(job)->runner();
QMutexLocker l(&m_mutex);
--m_runCounts[runner->name()];
}
void DefaultRunnerPolicy::release(Job *job)
{
free(job);
}
void DefaultRunnerPolicy::destructed(Job *job)
{
Q_UNUSED(job)
}
////////////////////
// Jobs
////////////////////
FindMatchesJob::FindMatchesJob(Plasma::AbstractRunner *runner,
Plasma::RunnerContext *context, QObject *parent)
: ThreadWeaver::Job(parent),
m_context(*context, 0),
m_runner(runner),
m_timer(0)
{
if (runner->speed() == Plasma::AbstractRunner::SlowSpeed) {
assignQueuePolicy(&DelayedRunnerPolicy::instance());
} else {
assignQueuePolicy(&DefaultRunnerPolicy::instance());
}
}
FindMatchesJob::~FindMatchesJob()
{
}
QTimer* FindMatchesJob::delayTimer() const
{
return m_timer;
}
void FindMatchesJob::setDelayTimer(QTimer *timer)
{
m_timer = timer;
}
void FindMatchesJob::run()
{
// kDebug() << "Running match for " << m_runner->objectName()
// << " in Thread " << thread()->id() << endl;
if (m_context.isValid()) {
m_runner->performMatch(m_context);
}
}
int FindMatchesJob::priority() const
{
return m_runner->priority();
}
Plasma::AbstractRunner* FindMatchesJob::runner() const
{
return m_runner;
}
DelayedJobCleaner::DelayedJobCleaner(QSet<FindMatchesJob*> jobs, ThreadWeaver::WeaverInterface *weaver)
: QObject(weaver),
m_weaver(weaver),
m_jobs(jobs)
{
connect(m_weaver, SIGNAL(finished()), this, SLOT(checkIfFinished()));
foreach (FindMatchesJob *job, m_jobs) {
connect(job, SIGNAL(done(ThreadWeaver::Job*)), this, SLOT(jobDone(ThreadWeaver::Job*)));
}
}
void DelayedJobCleaner::jobDone(ThreadWeaver::Job *job)
{
FindMatchesJob *runJob = dynamic_cast<FindMatchesJob *>(job);
if (!runJob) {
return;
}
m_jobs.remove(runJob);
runJob->deleteLater();
if (m_jobs.isEmpty()) {
deleteLater();
}
}
void DelayedJobCleaner::checkIfFinished()
{
if (m_weaver->isIdle()) {
qDeleteAll(m_jobs);
m_jobs.clear();
deleteLater();
}
}
} // Plasma namespace
// #include "runnerjobs.moc"