#include <QMutex>
#include <iostream>
#include <QTime>
using namespace std;
QMutex mutex;//日志代码互斥锁
QString timePoint;
void LogMsgOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
mutex.lock();
std::cout << msg.toStdString() << endl;
//Critical Resource of Code
QByteArray localMsg = msg.toLocal8Bit();
QString log;
switch (type) {
case QtDebugMsg:
log.append(QString("Debug File:%1 %2 Line:%3 Content:%4").arg(context.file).arg(context.function).arg(context.line).arg(msg));
break;
case QtInfoMsg:
log.append(QString("Info: %1 %2 %3 %4").arg(localMsg.constData()).arg(context.file).arg(context.line).arg(context.function));
break;
case QtWarningMsg:
log.append(QString("Warning: %1 %2 %3 %4").arg(localMsg.constData()).arg(context.file).arg(context.line).arg(context.function));
break;
case QtCriticalMsg:
log.append(QString("Critical: %1 %2 %3 %4").arg(localMsg.constData()).arg(context.file).arg(context.line).arg(context.function));
break;
case QtFatalMsg:
log.append(QString("Fatal: %1 %2 %3 %4").arg(localMsg.constData()).arg(context.file).arg(context.line).arg(context.function));
abort();
}
QFile file;
QString path = QString("log%1.lgt").arg(timePoint);
file.setFileName(path);
if (!file.open(QIODevice::ReadWrite | QIODevice::Append))
{
QString erinfo = file.errorString();
cout << erinfo.toStdString() << endl;
return;
}
QTextStream out(&file);
out << "\n\r" << log;
file.close();
mutex.unlock();
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
qInstallMessageHandler(LogMsgOutput);
timePoint=QTime::currentTime().toString();
}