5b3292a14e
Change-Id: Ic1b31b1c4dd91251eec278a0840bb06635c828c6 Done-with: Juho Hämäläinen <juho.hamalainen@tieto.com> Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
408 lines
13 KiB
C++
408 lines
13 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Jolla Ltd, author: <robin.burchell@jollamobile.com>
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <policy/resource.h>
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#include <policy/resources.h>
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#include <policy/resource-set.h>
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#include "resourcepolicyint.h"
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#include "resourcepolicyimpl.h"
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#include <QMap>
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#include <QByteArray>
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#include <QString>
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static int clientid = 0;
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ResourcePolicyInt::ResourcePolicyInt(QObject *parent)
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: QObject(parent)
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, m_acquired(0)
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, m_status(Initial)
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, m_video(0)
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, m_available(false)
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, m_resourceSet(0)
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{
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const char *resourceClass = "player";
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QByteArray envVar = qgetenv("NEMO_RESOURCE_CLASS_OVERRIDE");
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if (!envVar.isEmpty()) {
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QString data(envVar);
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// Only allow few resource classes
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if (data == "navigator" ||
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data == "call" ||
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data == "camera" ||
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data == "game" ||
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data == "player" ||
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data == "event")
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resourceClass = envVar.constData();
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}
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### Using resource class " << resourceClass;
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#endif
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m_resourceSet = new ResourcePolicy::ResourceSet(resourceClass, this);
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m_resourceSet->setAlwaysReply();
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connect(m_resourceSet, SIGNAL(resourcesGranted(QList<ResourcePolicy::ResourceType>)),
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this, SLOT(handleResourcesGranted()));
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connect(m_resourceSet, SIGNAL(resourcesDenied()),
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this, SLOT(handleResourcesDenied()));
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connect(m_resourceSet, SIGNAL(resourcesReleased()),
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this, SLOT(handleResourcesReleased()));
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connect(m_resourceSet, SIGNAL(lostResources()),
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this, SLOT(handleResourcesLost()));
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connect(m_resourceSet, SIGNAL(resourcesReleasedByManager()),
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this, SLOT(handleResourcesReleasedByManager()));
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connect(m_resourceSet, SIGNAL(resourcesBecameAvailable(const QList<ResourcePolicy::ResourceType>)),
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this, SLOT(handleResourcesBecameAvailable(const QList<ResourcePolicy::ResourceType>)));
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ResourcePolicy::AudioResource *audioResource = new ResourcePolicy::AudioResource(resourceClass);
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audioResource->setProcessID(QCoreApplication::applicationPid());
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audioResource->setStreamTag("media.name", "*");
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m_resourceSet->addResourceObject(audioResource);
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m_resourceSet->update();
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}
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ResourcePolicyInt::~ResourcePolicyInt()
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{
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delete m_resourceSet;
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m_resourceSet = 0;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### Tearing down singleton.";
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#endif
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}
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void ResourcePolicyInt::addClient(ResourcePolicyImpl *client)
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{
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clientEntry entry;
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entry.id = clientid++;
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entry.client = client;
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entry.status = Initial;
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entry.videoEnabled = false;
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m_clients.insert(entry.client, entry);
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### Add client " << client << " : " << entry.id;
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#endif
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}
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void ResourcePolicyInt::removeClient(ResourcePolicyImpl *client)
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{
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client);
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if (i != m_clients.end()) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### Remove client " << client << " : " << i.value().id;
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#endif
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if (i.value().status == GrantedResource)
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--m_acquired;
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m_clients.erase(i);
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}
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if (m_acquired == 0 && m_status != Initial) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### Remove client, acquired = 0, release";
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#endif
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m_resourceSet->release();
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m_status = Initial;
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}
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}
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bool ResourcePolicyInt::isVideoEnabled(const ResourcePolicyImpl *client) const
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{
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QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.find(client);
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if (i != m_clients.constEnd())
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return i.value().videoEnabled;
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return false;
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}
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void ResourcePolicyInt::setVideoEnabled(const ResourcePolicyImpl *client, bool videoEnabled)
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{
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bool update = false;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client);
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if (i != m_clients.end()) {
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if (videoEnabled == i.value().videoEnabled)
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return;
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if (videoEnabled) {
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if (m_video > 0) {
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i.value().videoEnabled = true;
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} else {
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m_resourceSet->addResource(ResourcePolicy::VideoPlaybackType);
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update = true;
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}
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++m_video;
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} else {
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--m_video;
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i.value().videoEnabled = false;
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if (m_video == 0) {
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m_resourceSet->deleteResource(ResourcePolicy::VideoPlaybackType);
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update = true;
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}
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}
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}
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if (update)
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m_resourceSet->update();
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}
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void ResourcePolicyInt::acquire(const ResourcePolicyImpl *client)
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{
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client);
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if (i != m_clients.end()) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": ACQUIRE";
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#endif
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if (i.value().status == Initial) {
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if (m_status == RequestedResource) {
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i.value().status = RequestedResource;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": Already requesting, set client as RequestResource and return";
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#endif
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return;
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}
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if (m_status == GrantedResource) {
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++m_acquired;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": Already granted, set as GrantedResource and return";
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#endif
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i.value().status = GrantedResource;
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emit i.value().client->resourcesGranted();
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return;
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}
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} else if (i.value().status == RequestedResource) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": Already requesting, return";
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#endif
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return;
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} else {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": Already granted, return ";
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#endif
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return;
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}
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i.value().status = RequestedResource;
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m_status = RequestedResource;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": ACQUIRE call resourceSet->acquire()";
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#endif
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// If m_status was Initial this is the first time resources are requested,
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// so let's actually do the acquiring
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m_resourceSet->acquire();
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}
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}
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void ResourcePolicyInt::release(const ResourcePolicyImpl *client)
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{
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client);
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if (i != m_clients.end()) {
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if (i.value().status == GrantedResource) {
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i.value().status = Initial;
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--m_acquired;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": RELEASE, acquired (" << m_acquired << ")";
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#endif
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emit i.value().client->resourcesReleased();
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}
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}
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if (m_acquired == 0 && m_status != Initial) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": RELEASE call resourceSet->release()";
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#endif
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m_resourceSet->release();
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m_status = Initial;
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}
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}
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bool ResourcePolicyInt::isGranted(const ResourcePolicyImpl *client) const
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{
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QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.find(client);
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if (i != m_clients.constEnd()) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": IS GRANTED, status: " << i.value().status;
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#endif
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return i.value().status == GrantedResource;
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}
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return false;
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}
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bool ResourcePolicyInt::isAvailable() const
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{
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### isAvailable " << m_available;
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#endif
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return m_available;
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}
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void ResourcePolicyInt::handleResourcesGranted()
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{
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m_status = GrantedResource;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
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while (i != m_clients.end()) {
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if (i.value().status == RequestedResource) {
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++m_acquired;
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": HANDLE GRANTED, acquired (" << m_acquired << ") emitting resourcesGranted()";
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#endif
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i.value().status = GrantedResource;
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emit i.value().client->resourcesGranted();
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}
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++i;
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}
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}
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void ResourcePolicyInt::handleResourcesDenied()
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{
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m_status = Initial;
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m_acquired = 0;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
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while (i != m_clients.end()) {
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if (i.value().status == RequestedResource) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": HANDLE DENIED, acquired (" << m_acquired << ") emitting resourcesDenied()";
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#endif
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i.value().status = Initial;
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emit i.value().client->resourcesDenied();
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}
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// Do we need to act for clients that are in granted state?
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++i;
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}
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}
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void ResourcePolicyInt::handleResourcesReleased()
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{
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m_status = Initial;
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m_acquired = 0;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
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while (i != m_clients.end()) {
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if (i.value().status != Initial) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": HANDLE RELEASED, acquired (" << m_acquired << ") emitting resourcesReleased()";
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#endif
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i.value().status = Initial;
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emit i.value().client->resourcesReleased();
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}
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++i;
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}
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}
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void ResourcePolicyInt::handleResourcesLost()
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{
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// If resources were granted switch to acquiring state,
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// so that if the resources are freed elsewhere we
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// will acquire them again properly.
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if (m_status == GrantedResource)
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m_status = RequestedResource;
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m_acquired = 0;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
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while (i != m_clients.end()) {
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if (i.value().status == GrantedResource) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": HANDLE LOST, acquired (" << m_acquired << ") emitting resourcesLost()";
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#endif
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i.value().status = RequestedResource;
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emit i.value().client->resourcesLost();
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}
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++i;
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}
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}
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void ResourcePolicyInt::handleResourcesReleasedByManager()
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{
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if (m_status != Initial)
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m_status = Initial;
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m_acquired = 0;
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QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
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while (i != m_clients.end()) {
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if (i.value().status != Initial) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": HANDLE RELEASEDBYMANAGER, acquired (" << m_acquired << ") emitting resourcesLost()";
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#endif
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i.value().status = Initial;
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emit i.value().client->resourcesLost();
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}
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++i;
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}
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}
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void ResourcePolicyInt::handleResourcesBecameAvailable(const QList<ResourcePolicy::ResourceType> &resources)
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{
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bool available = false;
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for (int i = 0; i < resources.size(); ++i) {
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if (resources.at(i) == ResourcePolicy::AudioPlaybackType)
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available = true;
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}
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availabilityChanged(available);
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}
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void ResourcePolicyInt::availabilityChanged(bool available)
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{
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if (available == m_available)
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return;
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m_available = available;
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QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.constBegin();
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while (i != m_clients.constEnd()) {
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#ifdef RESOURCE_DEBUG
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qDebug() << "##### " << i.value().id << ": emitting availabilityChanged(" << m_available << ")";
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#endif
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emit i.value().client->availabilityChanged(m_available);
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++i;
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}
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}
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