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path: root/src/corelib/io/qlockfile_unix.cpp
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* Include unistd.h in the unix implementation source of QLockFileLaszlo Papp2013-10-311-0/+1
| | | | | | | | | | This is necessary to avoid hidden dependencies for int gethostname(char *name, size_t namelen); This was revelead while backporting the class to Qt 4 for QtSerialPort. Change-Id: I1c477d295eeae90b3136fc6aae5d45982d5b1d73 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Make the localHostName() copy function return QByteArrayThiago Macieira2013-10-291-8/+8
| | | | | | | | | | This avoids one extra memory allocation when creating the lock file. The number of memory allocations when checking the file are still the same. Change-Id: I16a2fdb7a5458bdc66f8ad1c602582b5698a5b5c Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Kevin Ottens <kevin.ottens@kdab.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Use the fast operator+ (in the form of operator%)Thiago Macieira2013-10-151-7/+4
| | | | | | | | | | QStringBuilder will precalculate the size of the string for us, which avoids extra realloc() and moving data around. Change-Id: I4e31964bb9bfffbe2083b3cb8c120e602160dfd8 Reviewed-by: David Faure <david.faure@kdab.com> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com> Reviewed-by: Kevin Ottens <kevin.ottens@kdab.com>
* Reduce risks of lock file corruptionKevin Ottens2013-10-111-10/+10
| | | | | | | | | | | | Trying to do as few operations as possible once the file got opened. That includes generating the data which will go in the file. Indeed if we crashed at that point the lock file is already emptied. Could happen because of the qAppName call. It's then safer to prepare the data upfront, and just open/write/close if possible. Change-Id: Iad32fa822c6a5958ae89d84a2fe02ed5366ea278 Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com> Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
* Fix compilation of QLockFile on SolarisDavid Faure2013-07-161-0/+4
| | | | | | | | flock isn't available but we use fcnlt already (which is the recommended alternative on Solaris) Change-Id: I718e59c4804950a26eeb610888e17ce666522dcc Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Make qtbase compile with QT_NO_TEMPORARYFILETasuku Suzuki2013-06-041-2/+7
| | | | | | | | Change-Id: Ida2f59bb245ef70bf65f7e8944c4c315d5bc2f81 Reviewed-by: David Faure (KDE) <faure@kde.org> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
* Long live QLockFileDavid Faure2013-03-051-0/+207
Locking between processes, implemented with open(O_EXCL) on Unix and CreateFile(CREATE_NEW) on Windows. Supports detecting stale lock files and deleting them. Advisory locking is used to prevent deletion of files that are still in use. Change-Id: Id00ee2a4e77a29483d869037c7047c59cb909339 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>