/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=2)
 * and comes with ABSOLUTELY NO WARRANTY!
 * See LICENSE.txt for details.
 */
#ifndef WIN32

#include "processhelp.h"
#include "linuxlockfile.h"

#include <fcntl.h>
#include <semaphore.h>

#include <QDebug>
#include <QDir>
#include <QStandardPaths>

namespace ProcessHelp
{
    int lockFileFD = -1;
}

const QList<int> ProcessHelp::getProcessesIdForName(const QString &processName) {
    // TODO
    Q_UNUSED(processName);
    return QList<int>();
}

bool ProcessHelp::otherProcessesExist(const QString &processName) {
    // FIXME: We are using lock file semantics on GNU Linux so the
    // name of this method is rather misleading.

    QDir dataDir(QStandardPaths::writableLocation(QStandardPaths::DataLocation));
    dataDir.mkpath(".");
    QString lockFilePath = dataDir.filePath(processName + ".pid");
    lockFileFD = open_lockfile(lockFilePath.toLocal8Bit().data());
    if (lockFileFD == -1)
        // Creating the lock file failed, so we assume another
        // instance is runnning.
        return true;
    return false;
}

void ProcessHelp::activateWindowForProcess(const QString &executableName) {
    // TODO
    Q_UNUSED(executableName);
    return;
}

void ProcessHelp::cleanUp() {
    close_lockfile(lockFileFD);
}

#endif /* Not WIN32 */