Use coarse timestamp format

Since format in milliseconds doesn't add additional value and is
slower than just seconds.

src/app/filelogger.cpp

@@ -146,7 +146,7 @@ void FileLogger::addLogMessage(const Log::Msg &msg)
         stream << QStringView(u"(N) ");
     }
 
-    stream << QDateTime::fromMSecsSinceEpoch(msg.timestamp).toString(Qt::ISODate) << QStringView(u" - ") << msg.message << QChar(u'\n');
+    stream << QDateTime::fromSecsSinceEpoch(msg.timestamp).toString(Qt::ISODate) << QStringView(u" - ") << msg.message << QChar(u'\n');
 
     if (m_backup && (m_logFile.size() >= m_maxSize))
     {

src/base/bittorrent/statistics.cpp

@@ -35,7 +35,7 @@
 #include "base/bittorrent/sessionstatus.h"
 #include "base/profile.h"
 
-const qint64 SAVE_INTERVAL = 15 * 60 * 1000;
+const qint64 SAVE_INTERVAL = 15 * 60;  // seconds
 
 using namespace BitTorrent;
 
@@ -84,7 +84,7 @@ void Statistics::gather()
 
 void Statistics::save() const
 {
-    const qint64 now = QDateTime::currentMSecsSinceEpoch();
+    const qint64 now = QDateTime::currentSecsSinceEpoch();
 
     if (!m_dirty || ((now - m_lastWrite) < SAVE_INTERVAL))
         return;

src/base/logger.cpp

@@ -73,7 +73,7 @@ void Logger::freeInstance()
 void Logger::addMessage(const QString &message, const Log::MsgType &type)
 {
     QWriteLocker locker(&m_lock);
-    const Log::Msg msg = {m_msgCounter++, type, QDateTime::currentMSecsSinceEpoch(), message};
+    const Log::Msg msg = {m_msgCounter++, type, QDateTime::currentSecsSinceEpoch(), message};
     m_messages.push_back(msg);
     locker.unlock();
 
@@ -83,7 +83,7 @@ void Logger::addMessage(const QString &message, const Log::MsgType &type)
 void Logger::addPeer(const QString &ip, const bool blocked, const QString &reason)
 {
     QWriteLocker locker(&m_lock);
-    const Log::Peer msg = {m_peerCounter++, blocked, QDateTime::currentMSecsSinceEpoch(), ip, reason};
+    const Log::Peer msg = {m_peerCounter++, blocked, QDateTime::currentSecsSinceEpoch(), ip, reason};
     m_peers.push_back(msg);
     locker.unlock();
 

src/gui/log/logmodel.cpp

@@ -155,7 +155,7 @@ LogMessageModel::LogMessageModel(QObject *parent)
 
 void LogMessageModel::handleNewMessage(const Log::Msg &message)
 {
-    const QString time = QLocale::system().toString(QDateTime::fromMSecsSinceEpoch(message.timestamp), QLocale::ShortFormat);
+    const QString time = QLocale::system().toString(QDateTime::fromSecsSinceEpoch(message.timestamp), QLocale::ShortFormat);
     const QString messageText = message.message;
     const QColor foreground = m_foregroundForMessageTypes[message.type];
 
@@ -173,7 +173,7 @@ LogPeerModel::LogPeerModel(QObject *parent)
 
 void LogPeerModel::handleNewMessage(const Log::Peer &peer)
 {
-    const QString time = QLocale::system().toString(QDateTime::fromMSecsSinceEpoch(peer.timestamp), QLocale::ShortFormat);
+    const QString time = QLocale::system().toString(QDateTime::fromSecsSinceEpoch(peer.timestamp), QLocale::ShortFormat);
     const QString message = peer.blocked
             ? tr("%1 was blocked. Reason: %2.", "0.0.0.0 was blocked. Reason: reason for blocking.").arg(peer.ip, peer.reason)
             : tr("%1 was banned", "0.0.0.0 was banned").arg(peer.ip);