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// Copyright 2021-2022 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#include "ChannelListenerManager.h"
#include "Channel.h"
#include "User.h"
#include <QReadLocker>
#include <QWriteLocker>
std::size_t qHash(const ChannelListener &listener) {
return std::hash< ChannelListener >()(listener);
};
bool operator==(const ChannelListener &lhs, const ChannelListener &rhs) {
return lhs.channelID == rhs.channelID && lhs.userSession == rhs.userSession;
}
ChannelListenerManager::ChannelListenerManager()
: QObject(nullptr), m_listenerLock(), m_listeningUsers(), m_listenedChannels(), m_volumeLock(),
m_listenerVolumeAdjustments() {
}
void ChannelListenerManager::addListener(unsigned int userSession, int channelID) {
QWriteLocker lock(&m_listenerLock);
m_listeningUsers[userSession] << channelID;
m_listenedChannels[channelID] << userSession;
}
void ChannelListenerManager::removeListener(unsigned int userSession, int channelID) {
QWriteLocker lock(&m_listenerLock);
m_listeningUsers[userSession].remove(channelID);
m_listenedChannels[channelID].remove(userSession);
}
bool ChannelListenerManager::isListening(unsigned int userSession, int channelID) const {
QReadLocker lock(&m_listenerLock);
return m_listenedChannels[channelID].contains(userSession);
}
bool ChannelListenerManager::isListeningToAny(unsigned int userSession) const {
QReadLocker lock(&m_listenerLock);
return !m_listeningUsers[userSession].isEmpty();
}
bool ChannelListenerManager::isListenedByAny(int channelID) const {
QReadLocker lock(&m_listenerLock);
return !m_listenedChannels[channelID].isEmpty();
}
const QSet< unsigned int > ChannelListenerManager::getListenersForChannel(int channelID) const {
QReadLocker lock(&m_listenerLock);
return m_listenedChannels[channelID];
}
const QSet< int > ChannelListenerManager::getListenedChannelsForUser(unsigned int userSession) const {
QReadLocker lock(&m_listenerLock);
return m_listeningUsers[userSession];
}
int ChannelListenerManager::getListenerCountForChannel(int channelID) const {
QReadLocker lock(&m_listenerLock);
return m_listenedChannels[channelID].size();
}
int ChannelListenerManager::getListenedChannelCountForUser(unsigned int userSession) const {
QReadLocker lock(&m_listenerLock);
return m_listeningUsers[userSession].size();
}
void ChannelListenerManager::setListenerVolumeAdjustment(unsigned int userSession, int channelID,
const VolumeAdjustment &volumeAdjustment) {
float oldValue = 1.0f;
{
QWriteLocker lock(&m_volumeLock);
ChannelListener key = {};
key.channelID = channelID;
key.userSession = userSession;
auto it = m_listenerVolumeAdjustments.find(key);
if (it != m_listenerVolumeAdjustments.end()) {
oldValue = it->second.factor;
}
m_listenerVolumeAdjustments[key] = volumeAdjustment;
}
if (oldValue != volumeAdjustment.factor) {
emit localVolumeAdjustmentsChanged(channelID, volumeAdjustment.factor, oldValue);
}
}
const VolumeAdjustment &ChannelListenerManager::getListenerVolumeAdjustment(unsigned int userSession,
int channelID) const {
static VolumeAdjustment fallbackObj = VolumeAdjustment::fromFactor(1.0f);
QReadLocker lock(&m_volumeLock);
ChannelListener key = {};
key.channelID = channelID;
key.userSession = userSession;
auto it = m_listenerVolumeAdjustments.find(key);
if (it == m_listenerVolumeAdjustments.end()) {
return fallbackObj;
} else {
return it->second;
}
}
std::unordered_map< int, VolumeAdjustment >
ChannelListenerManager::getAllListenerVolumeAdjustments(unsigned int userSession) const {
QReadLocker lock1(&m_volumeLock);
QReadLocker lock2(&m_listenerLock);
std::unordered_map< int, VolumeAdjustment > adjustments;
for (int channelID : m_listeningUsers.value(userSession)) {
ChannelListener listener = {};
listener.channelID = channelID;
listener.userSession = userSession;
auto it = m_listenerVolumeAdjustments.find(listener);
if (it != m_listenerVolumeAdjustments.end() && it->second.factor != 1.0f) {
adjustments[channelID] = it->second;
}
}
return adjustments;
}
void ChannelListenerManager::clear() {
{
QWriteLocker lock(&m_listenerLock);
m_listeningUsers.clear();
m_listenedChannels.clear();
}
{
QWriteLocker lock(&m_volumeLock);
m_listenerVolumeAdjustments.clear();
}
}
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