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Use a constant log file and rollover accumulated logs to a new file based on startup, time or size

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This commit is contained in:
Brad Davis 2015-08-31 14:44:12 -07:00
parent 25673831c2
commit 70ffe10057
2 changed files with 49 additions and 15 deletions
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62
interface/src/FileLogger.cpp
View file

@ -10,16 +10,39 @@
//
#include "FileLogger.h"
#include "HifiSockAddr.h"
#include <FileUtils.h>
#include <QDateTime>
#include <QFile>
#include <QDir>
#include <QDesktopServices>
const QString FILENAME_FORMAT = "hifi-log_%1_%2.txt";
const QString DATETIME_FORMAT = "yyyy-MM-dd_hh.mm.ss";
const QString LOGS_DIRECTORY = "Logs";
#include <QtCore/QDateTime>
#include <QtCore/QFile>
#include <QtCore/QDir>
#include <QtGui/QDesktopServices>
#include <NumericalConstants.h>
#include <FileUtils.h>
#include <SharedUtil.h>
#include "HifiSockAddr.h"
static const QString FILENAME_FORMAT = "hifi-log_%1_%2.txt";
static const QString DATETIME_FORMAT = "yyyy-MM-dd_hh.mm.ss";
static const QString LOGS_DIRECTORY = "Logs";
// Max log size is 1 MB
static const uint64_t MAX_LOG_SIZE = 1024 * 1024;
// Max log age is 1 hour
static const uint64_t MAX_LOG_AGE_USECS = USECS_PER_SECOND * 3600;
QString getLogRollerFilename() {
QString result = FileUtils::standardPath(LOGS_DIRECTORY);
QHostAddress clientAddress = getLocalAddress();
QDateTime now = QDateTime::currentDateTime();
result.append(QString(FILENAME_FORMAT).arg(clientAddress.toString(), now.toString(DATETIME_FORMAT)));
return result;
}
const QString& getLogFilename() {
static QString fileName = FileUtils::standardPath(LOGS_DIRECTORY) + "hifi-log.txt";
return fileName;
}
class FilePersistThread : public GenericQueueThread < QString > {
public:
@ -28,8 +51,22 @@ public:
}
protected:
void rollFileIfNecessary(QFile& file) {
uint64_t now = usecTimestampNow();
if ((file.size() > MAX_LOG_SIZE) || (now - _lastRollTime) > MAX_LOG_AGE_USECS) {
QString newFileName = getLogRollerFilename();
if (file.copy(newFileName)) {
_lastRollTime = now;
file.open(QIODevice::WriteOnly | QIODevice::Truncate);
file.close();
qDebug() << "Rolled log file: " << newFileName;
}
}
}
virtual bool processQueueItems(const Queue& messages) {
QFile file(_logger._fileName);
rollFileIfNecessary(file);
if (file.open(QIODevice::WriteOnly | QIODevice::Append | QIODevice::Text)) {
QTextStream out(&file);
foreach(const QString& message, messages) {
@ -40,20 +77,17 @@ protected:
}
private:
const FileLogger& _logger;
uint64_t _lastRollTime = 0;
};
static FilePersistThread* _persistThreadInstance;
FileLogger::FileLogger(QObject* parent) :
AbstractLoggerInterface(parent)
AbstractLoggerInterface(parent), _fileName(getLogFilename())
{
_persistThreadInstance = new FilePersistThread(*this);
_persistThreadInstance->initialize(true, QThread::LowestPriority);
_fileName = FileUtils::standardPath(LOGS_DIRECTORY);
QHostAddress clientAddress = getLocalAddress();
QDateTime now = QDateTime::currentDateTime();
_fileName.append(QString(FILENAME_FORMAT).arg(clientAddress.toString(), now.toString(DATETIME_FORMAT)));
}
FileLogger::~FileLogger() {

2
interface/src/FileLogger.h
View file

@ -27,7 +27,7 @@ public:
virtual void locateLog() override;
private:
QString _fileName;
const QString _fileName;
friend class FilePersistThread;
};