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annotate ui/processhelp_linux.cpp @ 782:20ca94680003

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Implemented detection of running instance on linux using a lock file.
author Sascha Wilde <wilde@intevation.de>
date Mon, 14 Jul 2014 12:46:47 +0200
parents cfef809b890d
children 2a1206932f53
rev   line source
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cfef809b890d Add Process Management functions and ther implementation for windows.
Andre Heinecke <andre.heinecke@intevation.de>
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #ifndef WIN32
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9
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10 #include "processhelp.h"
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11 #include "linuxlockfile.h"
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12
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13 #include <fcntl.h>
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14 #include <semaphore.h>
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15
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16 #include <QDebug>
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17 #include <QDir>
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18 #include <QStandardPaths>
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19
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20 namespace ProcessHelp
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21 {
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22 int lockFileFD = -1;
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23 }
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24
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25 const QList<int> ProcessHelp::getProcessesIdForName(const QString &processName) {
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26 // TODO
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27 Q_UNUSED(processName);
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28 return QList<int>();
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29 }
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30
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31 bool ProcessHelp::otherProcessesExist(const QString &processName) {
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32 // FIXME: We are using lock file semantics on GNU Linux so the
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33 // name of this method is rather misleading.
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34
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35 QDir dataDir(QStandardPaths::writableLocation(QStandardPaths::DataLocation));
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36 dataDir.mkpath(".");
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37 QString lockFilePath = dataDir.filePath(processName + ".pid");
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38 lockFileFD = open_lockfile(lockFilePath.toLocal8Bit().data());
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39 if (lockFileFD == -1)
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40 // Creating the lock file failed, so we assume another
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41 // instance is runnning.
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42 return true;
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43 return false;
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44 }
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45
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46 void ProcessHelp::activateWindowForProcess(const QString &executableName) {
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47 // TODO
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48 Q_UNUSED(executableName);
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49 return;
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50 }
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51
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52 void ProcessHelp::cleanUp() {
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53 close_lockfile(lockFileFD);
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54 }
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55
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56 #endif /* Not WIN32 */
http://wald.intevation.org/projects/trustbridge/