Avoid log file excessive flushing

Excessive flushing could happen when a lot of logging happens in a short
time interval.
This commit is contained in:
Chocobo1 2020-03-26 15:57:56 +08:00
parent 12396a7582
commit c52737e07c
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GPG key ID: 210D9C873253A68C

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@ -28,6 +28,8 @@
#include "filelogger.h"
#include <chrono>
#include <QDateTime>
#include <QDir>
#include <QTextStream>
@ -36,11 +38,16 @@
#include "base/logger.h"
#include "base/utils/fs.h"
namespace
{
const std::chrono::seconds FLUSH_INTERVAL {2};
}
FileLogger::FileLogger(const QString &path, const bool backup, const int maxSize, const bool deleteOld, const int age, const FileLogAgeType ageType)
: m_backup(backup)
, m_maxSize(maxSize)
{
m_flusher.setInterval(0);
m_flusher.setInterval(FLUSH_INTERVAL);
m_flusher.setSingleShot(true);
connect(&m_flusher, &QTimer::timeout, this, &FileLogger::flushLog);
@ -131,7 +138,7 @@ void FileLogger::addLogMessage(const Log::Msg &msg)
stream << "(N) ";
}
stream << QDateTime::fromMSecsSinceEpoch(msg.timestamp).toString(Qt::ISODate) << " - " << msg.message << endl;
stream << QDateTime::fromMSecsSinceEpoch(msg.timestamp).toString(Qt::ISODate) << " - " << msg.message << '\n';
if (m_backup && (m_logFile.size() >= m_maxSize)) {
closeLogFile();
@ -147,7 +154,8 @@ void FileLogger::addLogMessage(const Log::Msg &msg)
openLogFile();
}
else {
m_flusher.start();
if (!m_flusher.isActive())
m_flusher.start();
}
}