aboutsummaryrefslogtreecommitdiff
path: root/src/qt/clientmodel.cpp
blob: 3e062bffb5201550faf9daa0fc878aa35c1db22d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
// 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 nLastHeaderTipUpdateNotification = 0;
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
{
    CConnman::NumConnections connections = CConnman::CONNECTIONS_NONE;

    if(flags == CONNECTIONS_IN)
        connections = CConnman::CONNECTIONS_IN;
    else if (flags == CONNECTIONS_OUT)
        connections = CConnman::CONNECTIONS_OUT;
    else if (flags == CONNECTIONS_ALL)
        connections = CConnman::CONNECTIONS_ALL;

    if(g_connman)
         return g_connman->GetNodeCount(connections);
    return 0;
}

int ClientModel::getNumBlocks() const
{
    LOCK(cs_main);
    return chainActive.Height();
}

quint64 ClientModel::getTotalBytesRecv() const
{
    if(!g_connman)
        return 0;
    return g_connman->GetTotalBytesRecv();
}

quint64 ClientModel::getTotalBytesSent() const
{
    if(!g_connman)
        return 0;
    return g_connman->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::updateNetworkActive(bool networkActive)
{
    Q_EMIT networkActiveChanged(networkActive);
}

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;
}

void ClientModel::setNetworkActive(bool active)
{
    if (g_connman) {
         g_connman->SetNetworkActive(active);
    }
}

bool ClientModel::getNetworkActive() const
{
    if (g_connman) {
        return g_connman->GetNetworkActive();
    }
    return false;
}

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);
}

bool ClientModel::isReleaseVersion() const
{
    return CLIENT_VERSION_IS_RELEASE;
}

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 NotifyNetworkActiveChanged(ClientModel *clientmodel, bool networkActive)
{
    QMetaObject::invokeMethod(clientmodel, "updateNetworkActive", Qt::QueuedConnection,
                              Q_ARG(bool, networkActive));
}

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, bool fHeader)
{
    // 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();

    int64_t& nLastUpdateNotification = fHeader ? nLastHeaderTipUpdateNotification : nLastBlockTipUpdateNotification;

    // if we are in-sync, update the UI regardless of last update time
    if (!initialSync || now - nLastUpdateNotification > 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)),
                                  Q_ARG(bool, fHeader));
        nLastUpdateNotification = 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.NotifyNetworkActiveChanged.connect(boost::bind(NotifyNetworkActiveChanged, 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, false));
    uiInterface.NotifyHeaderTip.connect(boost::bind(BlockTipChanged, this, _1, _2, true));
}

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.NotifyNetworkActiveChanged.disconnect(boost::bind(NotifyNetworkActiveChanged, 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, false));
    uiInterface.NotifyHeaderTip.disconnect(boost::bind(BlockTipChanged, this, _1, _2, true));
}