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Diffstat (limited to 'src/plugins/resourcepolicy/resourcepolicyint.cpp')
| -rw-r--r-- | src/plugins/resourcepolicy/resourcepolicyint.cpp | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/src/plugins/resourcepolicy/resourcepolicyint.cpp b/src/plugins/resourcepolicy/resourcepolicyint.cpp new file mode 100644 index 000000000..2fff64bfb --- /dev/null +++ b/src/plugins/resourcepolicy/resourcepolicyint.cpp @@ -0,0 +1,311 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Jolla Ltd, author: <robin.burchell@jollamobile.com> +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <policy/resource.h> +#include <policy/resources.h> +#include <policy/resource-set.h> + +#include "resourcepolicyint.h" +#include "resourcepolicyimpl.h" + +#include <QMap> + +static int clientid = 0; + +ResourcePolicyInt::ResourcePolicyInt(QObject *parent) + : QObject(parent) + , m_acquired(0) + , m_status(Initial) + , m_video(0) + , m_resourceSet(0) +{ + m_resourceSet = new ResourcePolicy::ResourceSet("player", this); + m_resourceSet->setAlwaysReply(); + + ResourcePolicy::AudioResource *audioResource = new ResourcePolicy::AudioResource("player"); + audioResource->setProcessID(QCoreApplication::applicationPid()); + audioResource->setStreamTag("media.name", "*"); + m_resourceSet->addResourceObject(audioResource); + + m_resourceSet->update(); + + connect(m_resourceSet, SIGNAL(resourcesGranted(QList<ResourcePolicy::ResourceType>)), + this, SLOT(handleResourcesGranted())); + connect(m_resourceSet, SIGNAL(resourcesDenied()), + this, SLOT(handleResourcesDenied())); + connect(m_resourceSet, SIGNAL(lostResources()), + this, SLOT(handleResourcesLost())); + connect(m_resourceSet, SIGNAL(resourcesReleasedByManager()), + this, SLOT(handleResourcesLost())); +} + +ResourcePolicyInt::~ResourcePolicyInt() +{ + delete m_resourceSet; + m_resourceSet = 0; +#ifdef RESOURCE_DEBUG + qDebug() << "##### Tearing down singleton."; +#endif +} + +void ResourcePolicyInt::addClient(ResourcePolicyImpl *client) +{ + clientEntry entry; + entry.id = clientid++; + entry.client = client; + entry.status = Initial; + entry.videoEnabled = false; + m_clients.insert(entry.client, entry); +#ifdef RESOURCE_DEBUG + qDebug() << "##### Add client " << client << " : " << entry.id; +#endif +} + +void ResourcePolicyInt::removeClient(ResourcePolicyImpl *client) +{ + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client); + if (i != m_clients.end()) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### Remove client " << client << " : " << i.value().id; +#endif + if (i.value().status == GrantedResource) + --m_acquired; + m_clients.erase(i); + } + + if (m_acquired == 0) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### Remove client, acquired = 0, release"; +#endif + m_resourceSet->release(); + m_status = Initial; + } +} + +bool ResourcePolicyInt::isVideoEnabled(const ResourcePolicyImpl *client) const +{ + QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.find(client); + if (i != m_clients.constEnd()) + return i.value().videoEnabled; + + return false; +} + +void ResourcePolicyInt::setVideoEnabled(const ResourcePolicyImpl *client, bool videoEnabled) +{ + bool update = false; + + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client); + if (i != m_clients.end()) { + if (videoEnabled == i.value().videoEnabled) + return; + + if (videoEnabled) { + if (m_video > 0) { + i.value().videoEnabled = true; + } else { + m_resourceSet->addResource(ResourcePolicy::VideoPlaybackType); + update = true; + } + ++m_video; + } else { + --m_video; + i.value().videoEnabled = false; + if (m_video == 0) { + m_resourceSet->deleteResource(ResourcePolicy::VideoPlaybackType); + update = true; + } + } + } + + if (update) + m_resourceSet->update(); +} + +void ResourcePolicyInt::acquire(const ResourcePolicyImpl *client) +{ + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client); + if (i != m_clients.end()) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": ACQUIRE"; +#endif + if (i.value().status == Initial) { + + if (m_status == RequestedResource) { + i.value().status = RequestedResource; +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": Already requesting, set client as RequestResource and return"; +#endif + return; + } + + if (m_status == GrantedResource) { + ++m_acquired; +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": Already granted, set as GrantedResource and return"; +#endif + i.value().status = GrantedResource; + emit i.value().client->resourcesGranted(); + return; + } + } else if (i.value().status == RequestedResource) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": Already requesting, return"; +#endif + return; + } else { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": Already granted, return "; +#endif + return; + } + i.value().status = RequestedResource; + m_status = RequestedResource; + +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": ACQUIRE call resourceSet->acquire()"; +#endif + // If m_status was Initial this is the first time resources are requested, + // so let's actually do the acquiring + m_resourceSet->acquire(); + } +} + +void ResourcePolicyInt::release(const ResourcePolicyImpl *client) +{ + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.find(client); + if (i != m_clients.end()) { + if (i.value().status == GrantedResource) { + i.value().status = Initial; + --m_acquired; +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": RELEASE, acquired (" << m_acquired << ")"; +#endif + } + } + + if (m_acquired == 0) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": RELEASE call resourceSet->release()"; +#endif + m_resourceSet->release(); + m_status = Initial; + } +} + +bool ResourcePolicyInt::isGranted(const ResourcePolicyImpl *client) const +{ + QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.find(client); + if (i != m_clients.constEnd()) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": IS GRANTED, status: " << i.value().status; +#endif + return i.value().status == GrantedResource; + } + + return false; +} + +bool ResourcePolicyInt::isAvailable() const +{ + // TODO: is this used? what is it for? + qWarning() << Q_FUNC_INFO << "Stub"; + return true; +} + +void ResourcePolicyInt::handleResourcesGranted() +{ + m_status = GrantedResource; + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin(); + while (i != m_clients.end()) { + if (i.value().status == RequestedResource) { + ++m_acquired; +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": HANDLE GRANTED, acquired (" << m_acquired << ") emitting resourcesGranted()"; +#endif + i.value().status = GrantedResource; + emit i.value().client->resourcesGranted(); + } + ++i; + } +} + +void ResourcePolicyInt::handleResourcesDenied() +{ + m_status = Initial; + m_acquired = 0; + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin(); + while (i != m_clients.end()) { + if (i.value().status == RequestedResource) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": HANDLE DENIED, acquired (" << m_acquired << ") emitting resourcesDenied()"; +#endif + i.value().status = Initial; + emit i.value().client->resourcesDenied(); + } + // Do we need to act for clients that are in granted state? + ++i; + } +} + +void ResourcePolicyInt::handleResourcesLost() +{ + if (m_status != Initial) { + m_status = Initial; + } + + m_acquired = 0; + m_resourceSet->release(); + + QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin(); + while (i != m_clients.end()) { + if (i.value().status != Initial) { +#ifdef RESOURCE_DEBUG + qDebug() << "##### " << i.value().id << ": HANDLE LOST, acquired (" << m_acquired << ") emitting resourcesLost()"; +#endif + i.value().status = Initial; + emit i.value().client->resourcesLost(); + } + ++i; + } +} |