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// Copyright (c) 2011-2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "clientmodel.h"
#include "bantablemodel.h"
#include "guiconstants.h"
#include "peertablemodel.h"
#include "chainparams.h"
#include "checkpoints.h"
#include "clientversion.h"
#include "net.h"
#include "txmempool.h"
#include "ui_interface.h"
#include "util.h"
#include <stdint.h>
#include <QDebug>
#include <QTimer>
class CBlockIndex;
static const int64_t nClientStartupTime = GetTime();
static int64_t nLastBlockTipUpdateNotification = 0;
ClientModel::ClientModel(OptionsModel *optionsModel, QObject *parent) :
QObject(parent),
optionsModel(optionsModel),
peerTableModel(0),
banTableModel(0),
pollTimer(0)
{
peerTableModel = new PeerTableModel(this);
banTableModel = new BanTableModel(this);
pollTimer = new QTimer(this);
connect(pollTimer, SIGNAL(timeout()), this, SLOT(updateTimer()));
pollTimer->start(MODEL_UPDATE_DELAY);
subscribeToCoreSignals();
}
ClientModel::~ClientModel()
{
unsubscribeFromCoreSignals();
}
int ClientModel::getNumConnections(unsigned int flags) const
{
LOCK(cs_vNodes);
if (flags == CONNECTIONS_ALL) // Shortcut if we want total
return vNodes.size();
int nNum = 0;
BOOST_FOREACH(const CNode* pnode, vNodes)
if (flags & (pnode->fInbound ? CONNECTIONS_IN : CONNECTIONS_OUT))
nNum++;
return nNum;
}
int ClientModel::getNumBlocks() const
{
LOCK(cs_main);
return chainActive.Height();
}
quint64 ClientModel::getTotalBytesRecv() const
{
return CNode::GetTotalBytesRecv();
}
quint64 ClientModel::getTotalBytesSent() const
{
return CNode::GetTotalBytesSent();
}
QDateTime ClientModel::getLastBlockDate() const
{
LOCK(cs_main);
if (chainActive.Tip())
return QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
return QDateTime::fromTime_t(Params().GenesisBlock().GetBlockTime()); // Genesis block's time of current network
}
long ClientModel::getMempoolSize() const
{
return mempool.size();
}
size_t ClientModel::getMempoolDynamicUsage() const
{
return mempool.DynamicMemoryUsage();
}
double ClientModel::getVerificationProgress(const CBlockIndex *tipIn) const
{
CBlockIndex *tip = const_cast<CBlockIndex *>(tipIn);
if (!tip)
{
LOCK(cs_main);
tip = chainActive.Tip();
}
return Checkpoints::GuessVerificationProgress(Params().Checkpoints(), tip);
}
void ClientModel::updateTimer()
{
// no locking required at this point
// the following calls will acquire the required lock
Q_EMIT mempoolSizeChanged(getMempoolSize(), getMempoolDynamicUsage());
Q_EMIT bytesChanged(getTotalBytesRecv(), getTotalBytesSent());
}
void ClientModel::updateNumConnections(int numConnections)
{
Q_EMIT numConnectionsChanged(numConnections);
}
void ClientModel::updateAlert()
{
Q_EMIT alertsChanged(getStatusBarWarnings());
}
bool ClientModel::inInitialBlockDownload() const
{
return IsInitialBlockDownload();
}
enum BlockSource ClientModel::getBlockSource() const
{
if (fReindex)
return BLOCK_SOURCE_REINDEX;
else if (fImporting)
return BLOCK_SOURCE_DISK;
else if (getNumConnections() > 0)
return BLOCK_SOURCE_NETWORK;
return BLOCK_SOURCE_NONE;
}
QString ClientModel::getStatusBarWarnings() const
{
return QString::fromStdString(GetWarnings("gui"));
}
OptionsModel *ClientModel::getOptionsModel()
{
return optionsModel;
}
PeerTableModel *ClientModel::getPeerTableModel()
{
return peerTableModel;
}
BanTableModel *ClientModel::getBanTableModel()
{
return banTableModel;
}
QString ClientModel::formatFullVersion() const
{
return QString::fromStdString(FormatFullVersion());
}
QString ClientModel::formatSubVersion() const
{
return QString::fromStdString(strSubVersion);
}
QString ClientModel::formatBuildDate() const
{
return QString::fromStdString(CLIENT_DATE);
}
bool ClientModel::isReleaseVersion() const
{
return CLIENT_VERSION_IS_RELEASE;
}
QString ClientModel::clientName() const
{
return QString::fromStdString(CLIENT_NAME);
}
QString ClientModel::formatClientStartupTime() const
{
return QDateTime::fromTime_t(nClientStartupTime).toString();
}
QString ClientModel::dataDir() const
{
return QString::fromStdString(GetDataDir().string());
}
void ClientModel::updateBanlist()
{
banTableModel->refresh();
}
// Handlers for core signals
static void ShowProgress(ClientModel *clientmodel, const std::string &title, int nProgress)
{
// emits signal "showProgress"
QMetaObject::invokeMethod(clientmodel, "showProgress", Qt::QueuedConnection,
Q_ARG(QString, QString::fromStdString(title)),
Q_ARG(int, nProgress));
}
static void NotifyNumConnectionsChanged(ClientModel *clientmodel, int newNumConnections)
{
// Too noisy: qDebug() << "NotifyNumConnectionsChanged: " + QString::number(newNumConnections);
QMetaObject::invokeMethod(clientmodel, "updateNumConnections", Qt::QueuedConnection,
Q_ARG(int, newNumConnections));
}
static void NotifyAlertChanged(ClientModel *clientmodel)
{
qDebug() << "NotifyAlertChanged";
QMetaObject::invokeMethod(clientmodel, "updateAlert", Qt::QueuedConnection);
}
static void BannedListChanged(ClientModel *clientmodel)
{
qDebug() << QString("%1: Requesting update for peer banlist").arg(__func__);
QMetaObject::invokeMethod(clientmodel, "updateBanlist", Qt::QueuedConnection);
}
static void BlockTipChanged(ClientModel *clientmodel, bool initialSync, const CBlockIndex *pIndex)
{
// lock free async UI updates in case we have a new block tip
// during initial sync, only update the UI if the last update
// was > 250ms (MODEL_UPDATE_DELAY) ago
int64_t now = 0;
if (initialSync)
now = GetTimeMillis();
// if we are in-sync, update the UI regardless of last update time
if (!initialSync || now - nLastBlockTipUpdateNotification > MODEL_UPDATE_DELAY) {
//pass a async signal to the UI thread
QMetaObject::invokeMethod(clientmodel, "numBlocksChanged", Qt::QueuedConnection,
Q_ARG(int, pIndex->nHeight),
Q_ARG(QDateTime, QDateTime::fromTime_t(pIndex->GetBlockTime())),
Q_ARG(double, clientmodel->getVerificationProgress(pIndex)));
nLastBlockTipUpdateNotification = now;
}
}
void ClientModel::subscribeToCoreSignals()
{
// Connect signals to client
uiInterface.ShowProgress.connect(boost::bind(ShowProgress, this, _1, _2));
uiInterface.NotifyNumConnectionsChanged.connect(boost::bind(NotifyNumConnectionsChanged, this, _1));
uiInterface.NotifyAlertChanged.connect(boost::bind(NotifyAlertChanged, this));
uiInterface.BannedListChanged.connect(boost::bind(BannedListChanged, this));
uiInterface.NotifyBlockTip.connect(boost::bind(BlockTipChanged, this, _1, _2));
}
void ClientModel::unsubscribeFromCoreSignals()
{
// Disconnect signals from client
uiInterface.ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
uiInterface.NotifyNumConnectionsChanged.disconnect(boost::bind(NotifyNumConnectionsChanged, this, _1));
uiInterface.NotifyAlertChanged.disconnect(boost::bind(NotifyAlertChanged, this));
uiInterface.BannedListChanged.disconnect(boost::bind(BannedListChanged, this));
uiInterface.NotifyBlockTip.disconnect(boost::bind(BlockTipChanged, this, _1, _2));
}