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/*
Copyright (C) 2012 Sebastian Herbord. All rights reserved.
This file is part of Mod Organizer.
Mod Organizer is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Mod Organizer is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Mod Organizer. If not, see <http://www.gnu.org/licenses/>.
*/
#include "logbuffer.h"
#include "report.h"
#include <QMutexLocker>
#include <QFile>
#include <Windows.h>
QScopedPointer<LogBuffer> LogBuffer::s_Instance;
QMutex LogBuffer::s_Mutex;
LogBuffer::LogBuffer(int messageCount, QtMsgType minMsgType, const QString &outputFileName)
: QObject(NULL), m_OutFileName(outputFileName), m_ShutDown(false),
m_MinMsgType(minMsgType), m_NumMessages(0)
{
m_Messages.resize(messageCount);
}
LogBuffer::~LogBuffer()
{
#if QT_VERSION >= 0x050000
qInstallMessageHandler(0);
#else
qInstallMsgHandler(0);
#endif
// if (!m_ShutDown) {
write();
// }
}
void LogBuffer::logMessage(QtMsgType type, const QString &message)
{
if (type >= m_MinMsgType) {
m_Messages.at(m_NumMessages % m_Messages.size()) = message;
++m_NumMessages;
if (type >= QtCriticalMsg) {
write();
}
}
}
void LogBuffer::write() const
{
if (m_NumMessages == 0) {
return;
}
QFile file(m_OutFileName);
if (!file.open(QIODevice::WriteOnly)) {
reportError(tr("failed to write log to %1: %2").arg(m_OutFileName).arg(file.errorString()));
return;
}
unsigned int i = (m_NumMessages > m_Messages.size()) ? m_NumMessages - m_Messages.size()
: 0U;
for (; i < m_NumMessages; ++i) {
file.write(m_Messages.at(i % m_Messages.size()).toUtf8());
file.write("\r\n");
}
}
void LogBuffer::init(int messageCount, QtMsgType minMsgType, const QString &outputFileName)
{
QMutexLocker guard(&s_Mutex);
if (!s_Instance.isNull()) {
s_Instance.reset();
}
s_Instance.reset(new LogBuffer(messageCount, minMsgType, outputFileName));
#if QT_VERSION >= 0x050000
qInstallMessageHandler(LogBuffer::log);
#else
qInstallMsgHandler(LogBuffer::log);
#endif
}
#if QT_VERSION >= 0x050000
void LogBuffer::log(QtMsgType type, const QMessageLogContext &context, const QString &message)
{
QMutexLocker guard(&s_Mutex);
if (!s_Instance.isNull()) {
s_Instance->logMessage(type, message);
}
fprintf(stdout, "(%s:%u, %s) %s\n", context.file, context.line, context.function, message.toLocal8Bit());
fflush(stdout);
}
#else
void LogBuffer::log(QtMsgType type, const char *message)
{
QMutexLocker guard(&s_Mutex);
if (!s_Instance.isNull()) {
s_Instance->logMessage(type, message);
}
fprintf(stdout, "%s\n", message);
fflush(stdout);
}
#endif
void LogBuffer::writeNow()
{
QMutexLocker guard(&s_Mutex);
if (!s_Instance.isNull()) {
s_Instance->write();
}
}
void LogBuffer::cleanQuit()
{
QMutexLocker guard(&s_Mutex);
if (!s_Instance.isNull()) {
s_Instance->m_ShutDown = true;
}
}
void log(const char *format, ...)
{
va_list argList;
va_start(argList, format);
static const int BUFFERSIZE = 1000;
char buffer[BUFFERSIZE + 1];
buffer[BUFFERSIZE] = '\0';
vsnprintf(buffer, BUFFERSIZE, format, argList);
qCritical("%s", buffer);
va_end(argList);
}
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