131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2020-2021 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "NetDataProvider.h"
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#include "NetPeer.h"
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#include "FloweePay.h"
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#include <ConnectionManager.h>
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#include <Peer.h>
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#include <QThread>
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#include <QTimer>
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NetDataProvider::NetDataProvider(int initialBlockHeight, QObject *parent)
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: QObject(parent),
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m_blockHeight(initialBlockHeight)
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{
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connect (this, SIGNAL(peerDeleted(int)), this, SLOT(deleteNetPeer(int)), Qt::QueuedConnection); // Make this thread-safe
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}
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void NetDataProvider::newPeer(int peerId, const std::string &userAgent, int startHeight, PeerAddress address)
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{
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QMutexLocker l(&m_peerMutex);
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NetPeer *newPeer = new NetPeer(peerId, QString::fromStdString(userAgent), startHeight, address);
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// assume this interface method is called in a thread that is not the Qt main one.
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newPeer->moveToThread(thread());
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newPeer->setParent(this);
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m_peers.append(newPeer);
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emit peerListChanged();
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if (m_refreshTimer)
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QTimer::singleShot(0, m_refreshTimer, SLOT(start()));
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}
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void NetDataProvider::lostPeer(int peerId)
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{
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// this callback is not guarenteed to be made in our thread.
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emit peerDeleted(peerId);
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}
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void NetDataProvider::deleteNetPeer(int peerId)
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{
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Q_ASSERT(QThread::currentThread() == thread()); // make sure we have no threading issues
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QMutexLocker l(&m_peerMutex);
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QList<NetPeer *> peers(m_peers);
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for (int i = 0; i < peers.size(); ++i) {
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if (peers.at(i)->connectionId() == peerId) {
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auto oldPeer = peers.takeAt(i);
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m_peers = peers;
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emit peerListChanged();
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oldPeer->deleteLater();
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return;
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}
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}
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}
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void NetDataProvider::updatePeers()
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{
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auto &conMan = FloweePay::instance()->p2pNet()->connectionManager();
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QMutexLocker l(&m_peerMutex);
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QList<NetPeer *> peers(m_peers);
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bool stopTimer = true;
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for (auto &p : peers) {
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auto peer = conMan.peer(p->connectionId());
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// update 'p' with up to date data from the peer.
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p->setRelaysTransactions(peer->relaysTransactions());
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p->setHeadersReceived(peer->receivedHeaders());
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if (peer->privacySegment() == nullptr)
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stopTimer = false;
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}
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if (stopTimer)
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m_refreshTimer->stop();
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}
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void NetDataProvider::blockchainHeightChanged(int newHeight)
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{
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m_blockHeight.storeRelease(newHeight);
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emit blockHeightChanged();
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}
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void NetDataProvider::punishMentChanged(int peerId)
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{
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QMutexLocker l(&m_peerMutex);
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QList<NetPeer *> peers(m_peers);
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for (auto &p : peers) {
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if (p->connectionId() == peerId) {
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p->notifyPunishmentChanged();
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break;
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}
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}
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}
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QList<NetPeer *> NetDataProvider::peers() const
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{
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return m_peers;
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}
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int NetDataProvider::blockheight() const
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{
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return m_blockHeight.loadAcquire();
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}
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void NetDataProvider::startRefreshTimer()
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{
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/*
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* Start a timer that checks every second if the peer has changed one of the not-broadcast status.
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* When a segment is assigned we can stop the timer.
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*/
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QMutexLocker l(&m_peerMutex);
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assert(m_refreshTimer == nullptr); // can be called only once
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m_refreshTimer = new QTimer(this);
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connect(m_refreshTimer, SIGNAL(timeout()), this, SLOT(updatePeers()));
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m_refreshTimer->setTimerType(Qt::VeryCoarseTimer);
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m_refreshTimer->setInterval(950);
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}
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