/*

* Copyright (C) by Christian Kamm <mail@ckamm.de>

*

* 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; version 2 of the License.

*

* 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.

*/

#include "lockwatcher.h"

#include "filesystem.h"

#include <QTimer>

using namespace OCC;

static const int check_frequency = 20 * 1000; // ms

LockWatcher::LockWatcher(QObject* parent)

: QObject(parent)

{

connect(&_timer, SIGNAL(timeout()),

SLOT(checkFiles()));

_timer.start(check_frequency);

}

void LockWatcher::addFile(const QString& path)

{

_watchedPaths.insert(path);

}

void LockWatcher::checkFiles()

{

QSet<QString> unlocked;

foreach (const QString& path, _watchedPaths) {

if (!FileSystem::isFileLocked(path)) {

emit fileUnlocked(path);

unlocked.insert(path);

}

}

// Doing it this way instead of with a QMutableSetIterator

// ensures that calling back into addFile from connected

// slots isn't a problem.

_watchedPaths.subtract(unlocked);

}