Mercurial > trustbridge
comparison ui/processhelp_linux.cpp @ 782:20ca94680003
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 |
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| 773:2c69298b4188 | 782:20ca94680003 |
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| 6 * See LICENSE.txt for details. | 6 * See LICENSE.txt for details. |
| 7 */ | 7 */ |
| 8 #ifndef WIN32 | 8 #ifndef WIN32 |
| 9 | 9 |
| 10 #include "processhelp.h" | 10 #include "processhelp.h" |
| 11 #include "linuxlockfile.h" | |
| 12 | |
| 13 #include <fcntl.h> | |
| 14 #include <semaphore.h> | |
| 15 | |
| 16 #include <QDebug> | |
| 17 #include <QDir> | |
| 18 #include <QStandardPaths> | |
| 19 | |
| 20 namespace ProcessHelp | |
| 21 { | |
| 22 int lockFileFD = -1; | |
| 23 } | |
| 11 | 24 |
| 12 const QList<int> ProcessHelp::getProcessesIdForName(const QString &processName) { | 25 const QList<int> ProcessHelp::getProcessesIdForName(const QString &processName) { |
| 13 // TODO | 26 // TODO |
| 14 Q_UNUSED(processName); | 27 Q_UNUSED(processName); |
| 15 return QList<int>(); | 28 return QList<int>(); |
| 16 } | 29 } |
| 17 | 30 |
| 18 bool ProcessHelp::otherProcessesExist(const QString &processName) { | 31 bool ProcessHelp::otherProcessesExist(const QString &processName) { |
| 19 // TODO | 32 // FIXME: We are using lock file semantics on GNU Linux so the |
| 20 Q_UNUSED(processName); | 33 // name of this method is rather misleading. |
| 34 | |
| 35 QDir dataDir(QStandardPaths::writableLocation(QStandardPaths::DataLocation)); | |
| 36 dataDir.mkpath("."); | |
| 37 QString lockFilePath = dataDir.filePath(processName + ".pid"); | |
| 38 lockFileFD = open_lockfile(lockFilePath.toLocal8Bit().data()); | |
| 39 if (lockFileFD == -1) | |
| 40 // Creating the lock file failed, so we assume another | |
| 41 // instance is runnning. | |
| 42 return true; | |
| 21 return false; | 43 return false; |
| 22 } | 44 } |
| 23 | 45 |
| 24 void ProcessHelp::activateWindowForProcess(const QString &executableName) { | 46 void ProcessHelp::activateWindowForProcess(const QString &executableName) { |
| 25 // TODO | 47 // TODO |
| 26 Q_UNUSED(executableName); | 48 Q_UNUSED(executableName); |
| 27 return; | 49 return; |
| 28 } | 50 } |
| 29 | 51 |
| 52 void ProcessHelp::cleanUp() { | |
| 53 close_lockfile(lockFileFD); | |
| 54 } | |
| 55 | |
| 30 #endif /* Not WIN32 */ | 56 #endif /* Not WIN32 */ |