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path: root/src/corelib/io/qlockfile_p.h
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* QLockFile/Unix: save the boot and machine IDs in the lock file tooThiago Macieira2017-11-141-0/+16
| | | | | | | | | | | | | | | This allows us to make sure that the PID we read is from the same boot as we are right now running. The collision could happen on embedded systems where the boot sequence is fixed, so all the same processes would have the exact same PIDs after reboot as they did before. [ChangeLog][QtCore][QLockFile] QLockFile can now properly conclude that a lock file from a previous boot of the same device is stale and can be removed. This is implemented only for Linux and Apple operating systems. Task-number: QTBUG-63425 Change-Id: I0b48fc8e90304e0dacc3fffd14e8e3a197211788 Reviewed-by: Kai Koehne <kai.koehne@qt.io>
* QLockInfo: Centralize the management of the lock file's contentsThiago Macieira2017-10-061-1/+3
| | | | | | | | | We duplicated both the creation of the contents and the check if the file was stale. Centralize everything in qlockfile.cpp. Change-Id: I0b48fc8e90304e0dacc3fffd14e91174af79841f Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
* QLockFile/Unix: drop the use of fcntl(F_SETLK)Thiago Macieira2017-10-061-4/+0
| | | | | | | | | | | | F_SETLK is bad. Explanation in the comment. And flock(2) does work with NFS on Linux, so let's just stick to that, which is simpler. We only use the file locks when we attempt to delete an apparently stale lock: that is, for a lock file that is at least staleLockTime old. Change-Id: I0b48fc8e90304e0dacc3fffd14e908c8c4c9d59b Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: David Faure <david.faure@kdab.com>
* Make sure all private headers in Qt Core include qglobal_p.hThiago Macieira2016-06-251-0/+1
| | | | | | | | | | | | The rule was: - if the header included qglobal.h, turn that into qglobal_p.h - otherwise, insert the #include after the "We mean it" warning qglobal_p.h currently only includes qglobal.h. Change-Id: Ib056b47dde3341ef9a52ffff13ef677e471674b7 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Merge remote-tracking branch 'origin/5.6' into 5.7Liang Qi2016-04-131-1/+2
|\ | | | | | | | | | | | | | | | | | | Conflicts: config.tests/unix/compile.test src/android/jar/src/org/qtproject/qt5/android/QtActivityDelegate.java src/testlib/qtestcase.cpp src/testlib/qtestcase.qdoc Change-Id: Ied3c471dbc9a076c8de33d673bd557e88575609d
| * dbustray: Implement better detection of indicator-applicationDmitry Shachnev2016-04-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | We need to do the icon cache trick all desktops using indicator-application, these are not limited to Unity. For example, the default Xubuntu and Lubuntu desktops use indicator-application too. Without this, tray icons will be improperly shown on these desktops. Change-Id: Id397bbe9b594152d7c3a29c36c853e928af7dde4 Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
* | Merge remote-tracking branch 'origin/5.6' into devLiang Qi2016-01-211-1/+1
|\| | | | | | | | | | | | | | | | | | | | | Conflicts: src/corelib/io/qiodevice_p.h src/corelib/kernel/qvariant_p.h src/corelib/tools/qsimd.cpp src/gui/kernel/qguiapplication.cpp tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp Change-Id: I742a093cbb231b282b43e463ec67173e0d29f57a
| * QLockFile: decide on locking strategy per pathDavid Fries2015-12-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | It is filesystem dependent if flock and fcntl locks are independent or the same underlying lock (which causes getting the second lock to fail). A temporary file in /tmp might be on a local file system and pass while the lock file is placed on NFS and fail with: setNativeLocks failed: Resource temporarily unavailable Instead check for lock conflicts per path and cache the result. Change-Id: I39c59bb240cd99ef0a0ec271243770ffd5df8a7d Reviewed-by: David Faure <david.faure@kdab.com>
* | Updated license headersJani Heikkinen2016-01-151-13/+19
|/ | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* take process name into account for QLockFile's pid clash resolutionJoerg Bornemann2015-05-261-0/+1
| | | | | | | | | | | | | | | | To cover the situation that the process ID got reused, the current process name is compared to the name of the process that corresponds to the process ID from the lock file. If the process names differ, the lock file is considered stale. [ChangeLog][QtCore][QLockFile] Detection of stale lock files got more robust and takes the name of the process that belongs to the stored PID into account. Task-number: QTBUG-45497 Change-Id: Ic3c0d7e066435451203e77b9b9ce2d70bfb9c570 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com> Reviewed-by: David Faure <david.faure@kdab.com>
* Update copyright headersJani Heikkinen2015-02-111-6/+6
| | | | | | | | | | | | | | | | | | Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
* Update license headers and add new license filesMatti Paaso2014-09-241-18/+10
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 - Removed LICENSE.GPL Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2 Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
* Doc: Adding mark-up to boolean default values.Jerome Pasion2013-10-081-1/+1
| | | | | | | | | | | | | | | | | Default values should have mark-up to denote that they are code. This commit changes: -"property is true" to "property is \c true". -"Returns true" to "Returns \c true". -"property is false" to "property is \c false". -"returns true" to "returns \c true". -"returns false" to "returns \c false". src/3rdparty and non-documentation instances were ignored. Task-number: QTBUG-33360 Change-Id: Ie87eaa57af947caa1230602b61c5c46292a4cf4e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
* Long live QLockFileDavid Faure2013-03-051-0/+104
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>
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