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-rw-r--r--src/plugins/resourcepolicy/resourcepolicyint.cpp405
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diff --git a/src/plugins/resourcepolicy/resourcepolicyint.cpp b/src/plugins/resourcepolicy/resourcepolicyint.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 Jolla Ltd, author: <robin.burchell@jollamobile.com>
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** 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 The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.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>
-#include <QByteArray>
-#include <QString>
-
-static int clientid = 0;
-
-ResourcePolicyInt::ResourcePolicyInt(QObject *parent)
- : QObject(parent)
- , m_acquired(0)
- , m_status(Initial)
- , m_video(0)
- , m_available(false)
- , m_resourceSet(0)
-{
- const char *resourceClass = "player";
-
- QByteArray envVar = qgetenv("NEMO_RESOURCE_CLASS_OVERRIDE");
- if (!envVar.isEmpty()) {
- QString data(envVar);
- // Only allow few resource classes
- if (data == "navigator" ||
- data == "call" ||
- data == "camera" ||
- data == "game" ||
- data == "player" ||
- data == "event")
- resourceClass = envVar.constData();
- }
-
-#ifdef RESOURCE_DEBUG
- qDebug() << "##### Using resource class " << resourceClass;
-#endif
-
- m_resourceSet = new ResourcePolicy::ResourceSet(resourceClass, this);
- m_resourceSet->setAlwaysReply();
-
- connect(m_resourceSet, SIGNAL(resourcesGranted(QList<ResourcePolicy::ResourceType>)),
- this, SLOT(handleResourcesGranted()));
- connect(m_resourceSet, SIGNAL(resourcesDenied()),
- this, SLOT(handleResourcesDenied()));
- connect(m_resourceSet, SIGNAL(resourcesReleased()),
- this, SLOT(handleResourcesReleased()));
- connect(m_resourceSet, SIGNAL(lostResources()),
- this, SLOT(handleResourcesLost()));
- connect(m_resourceSet, SIGNAL(resourcesReleasedByManager()),
- this, SLOT(handleResourcesReleasedByManager()));
-
- connect(m_resourceSet, SIGNAL(resourcesBecameAvailable(const QList<ResourcePolicy::ResourceType>)),
- this, SLOT(handleResourcesBecameAvailable(const QList<ResourcePolicy::ResourceType>)));
-
- ResourcePolicy::AudioResource *audioResource = new ResourcePolicy::AudioResource(resourceClass);
-
- audioResource->setProcessID(QCoreApplication::applicationPid());
- audioResource->setStreamTag("media.name", "*");
- m_resourceSet->addResourceObject(audioResource);
- m_resourceSet->update();
-}
-
-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 && m_status != Initial) {
-#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
- emit i.value().client->resourcesReleased();
- }
- }
-
- if (m_acquired == 0 && m_status != Initial) {
-#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
-{
-#ifdef RESOURCE_DEBUG
- qDebug() << "##### isAvailable " << m_available;
-#endif
- return m_available;
-}
-
-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::handleResourcesReleased()
-{
- m_status = Initial;
- m_acquired = 0;
- 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 RELEASED, acquired (" << m_acquired << ") emitting resourcesReleased()";
-#endif
- i.value().status = Initial;
- emit i.value().client->resourcesReleased();
- }
- ++i;
- }
-}
-
-void ResourcePolicyInt::handleResourcesLost()
-{
- // If resources were granted switch to acquiring state,
- // so that if the resources are freed elsewhere we
- // will acquire them again properly.
- if (m_status == GrantedResource)
- m_status = RequestedResource;
-
- m_acquired = 0;
-
- QMap<const ResourcePolicyImpl*, clientEntry>::iterator i = m_clients.begin();
- while (i != m_clients.end()) {
- if (i.value().status == GrantedResource) {
-#ifdef RESOURCE_DEBUG
- qDebug() << "##### " << i.value().id << ": HANDLE LOST, acquired (" << m_acquired << ") emitting resourcesLost()";
-#endif
- i.value().status = RequestedResource;
- emit i.value().client->resourcesLost();
- }
- ++i;
- }
-}
-
-void ResourcePolicyInt::handleResourcesReleasedByManager()
-{
- if (m_status != Initial)
- m_status = Initial;
-
- m_acquired = 0;
-
- 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 RELEASEDBYMANAGER, acquired (" << m_acquired << ") emitting resourcesLost()";
-#endif
- i.value().status = Initial;
- emit i.value().client->resourcesLost();
- }
- ++i;
- }
-}
-
-void ResourcePolicyInt::handleResourcesBecameAvailable(const QList<ResourcePolicy::ResourceType> &resources)
-{
- bool available = false;
-
- for (int i = 0; i < resources.size(); ++i) {
- if (resources.at(i) == ResourcePolicy::AudioPlaybackType)
- available = true;
- }
-
- availabilityChanged(available);
-}
-
-void ResourcePolicyInt::availabilityChanged(bool available)
-{
- if (available == m_available)
- return;
-
- m_available = available;
-
- QMap<const ResourcePolicyImpl*, clientEntry>::const_iterator i = m_clients.constBegin();
- while (i != m_clients.constEnd()) {
-#ifdef RESOURCE_DEBUG
- qDebug() << "##### " << i.value().id << ": emitting availabilityChanged(" << m_available << ")";
-#endif
- emit i.value().client->availabilityChanged(m_available);
- ++i;
- }
-}