cppcheck/gui/threadhandler.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2012 Daniel Marjamäki and Cppcheck team.
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
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#include <QObject>
#include <QStringList>
#include <QDebug>
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#include "settings.h"
#include "threadhandler.h"
#include "resultsview.h"
ThreadHandler::ThreadHandler(QObject *parent) :
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QObject(parent),
mScanDuration(0),
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mRunningThreadCount(0)
{
SetThreadCount(1);
}
ThreadHandler::~ThreadHandler()
{
RemoveThreads();
}
void ThreadHandler::ClearFiles()
{
mLastFiles.clear();
mResults.ClearFiles();
}
void ThreadHandler::SetFiles(const QStringList &files)
{
mResults.SetFiles(files);
mLastFiles = files;
}
void ThreadHandler::Check(const Settings &settings, bool recheck)
{
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if (recheck && mRunningThreadCount == 0) {
mResults.SetFiles(mLastFiles);
}
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if (mResults.GetFileCount() == 0 || mRunningThreadCount > 0 || settings._jobs <= 0) {
qDebug() << "Can't start checking if there's no files to check or if check is in progress.";
emit Done();
return;
}
SetThreadCount(settings._jobs);
mRunningThreadCount = mThreads.size();
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if (mResults.GetFileCount() < mRunningThreadCount) {
mRunningThreadCount = mResults.GetFileCount();
}
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for (int i = 0; i < mRunningThreadCount; i++) {
mThreads[i]->Check(settings);
}
mTime.start();
}
bool ThreadHandler::IsChecking() const
{
return mRunningThreadCount > 0;
}
void ThreadHandler::SetThreadCount(const int count)
{
if (mRunningThreadCount > 0 ||
count == mThreads.size() ||
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count <= 0) {
return;
}
//Remove unused old threads
RemoveThreads();
//Create new threads
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for (int i = mThreads.size(); i < count; i++) {
mThreads << new CheckThread(mResults);
connect(mThreads.last(), SIGNAL(Done()),
this, SLOT(ThreadDone()));
connect(mThreads.last(), SIGNAL(FileChecked(const QString &)),
&mResults, SLOT(FileChecked(const QString &)));
}
}
void ThreadHandler::RemoveThreads()
{
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for (int i = 0; i < mThreads.size(); i++) {
mThreads[i]->terminate();
disconnect(mThreads.last(), SIGNAL(Done()),
this, SLOT(ThreadDone()));
disconnect(mThreads.last(), SIGNAL(FileChecked(const QString &)),
&mResults, SLOT(FileChecked(const QString &)));
delete mThreads[i];
}
mThreads.clear();
}
void ThreadHandler::ThreadDone()
{
mRunningThreadCount--;
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if (mRunningThreadCount == 0) {
emit Done();
mScanDuration = mTime.elapsed();
}
}
void ThreadHandler::Stop()
{
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for (int i = 0; i < mThreads.size(); i++) {
mThreads[i]->stop();
}
}
void ThreadHandler::Initialize(ResultsView *view)
{
connect(&mResults, SIGNAL(Progress(int, const QString&)),
view, SLOT(Progress(int, const QString&)));
connect(&mResults, SIGNAL(Error(const ErrorItem &)),
view, SLOT(Error(const ErrorItem &)));
connect(&mResults, SIGNAL(Log(const QString &)),
parent(), SLOT(Log(const QString &)));
connect(&mResults, SIGNAL(DebugError(const ErrorItem &)),
parent(), SLOT(DebugError(const ErrorItem &)));
}
void ThreadHandler::LoadSettings(QSettings &settings)
{
SetThreadCount(settings.value(SETTINGS_CHECK_THREADS, 1).toInt());
}
void ThreadHandler::SaveSettings(QSettings &settings)
{
settings.setValue(SETTINGS_CHECK_THREADS, mThreads.size());
}
bool ThreadHandler::HasPreviousFiles() const
{
if (mLastFiles.size() > 0)
return true;
return false;
}
int ThreadHandler::GetPreviousFilesCount() const
{
return mLastFiles.size();
}
int ThreadHandler::GetPreviousScanDuration() const
{
return mScanDuration;
}