debug
release
+lib/qtsingleapplication/examples
.tmp
qtc-gdbmacros
CONFIG += ordered
TEMPLATE = subdirs
-#SUBDIRS += qtstatemachine
SUBDIRS += anidbudpclient
+SUBDIRS += qtsingleapplication
browserplugin {
# SUBDIRS += browserplugin-solution
--- /dev/null
+license accepted
--- /dev/null
+INSTALLATION INSTRUCTIONS
+
+These instructions refer to the package you are installing as
+some-package.tar.gz or some-package.zip. The .zip file is intended for use
+on Windows.
+
+The directory you choose for the installation will be referred to as
+your-install-dir.
+
+Note to Qt Visual Studio Integration users: In the instructions below,
+instead of building from command line with nmake, you can use the menu
+command 'Qt->Open Solution from .pro file' on the .pro files in the
+example and plugin directories, and then build from within Visual
+Studio.
+
+Unpacking and installation
+--------------------------
+
+1. Unpacking the archive (if you have not done so already).
+
+ On Unix and Mac OS X (in a terminal window):
+
+ cd your-install-dir
+ gunzip some-package.tar.gz
+ tar xvf some-package.tar
+
+ This creates the subdirectory some-package containing the files.
+
+ On Windows:
+
+ Unpack the .zip archive by right-clicking it in explorer and
+ choosing "Extract All...". If your version of Windows does not
+ have zip support, you can use the infozip tools available
+ from www.info-zip.org.
+
+ If you are using the infozip tools (in a command prompt window):
+ cd your-install-dir
+ unzip some-package.zip
+
+2. Configuring the package.
+
+ The configure script is called "configure" on unix/mac and
+ "configure.bat" on Windows. It should be run from a command line
+ after cd'ing to the package directory.
+
+ You can choose whether you want to use the component by including
+ its source code directly into your project, or build the component
+ as a dynamic shared library (DLL) that is loaded into the
+ application at run-time. The latter may be preferable for
+ technical or licensing (LGPL) reasons. If you want to build a DLL,
+ run the configure script with the argument "-library". Also see
+ the note about usage below.
+
+ (Components that are Qt plugins, e.g. styles and image formats,
+ are by default built as a plugin DLL.)
+
+ The configure script will prompt you in some cases for further
+ information. Answer these questions and carefully read the license text
+ before accepting the license conditions. The package cannot be used if
+ you do not accept the license conditions.
+
+3. Building the component and examples (when required).
+
+ If a DLL is to be built, or if you would like to build the
+ examples, next give the commands
+
+ qmake
+ make [or nmake if your are using Microsoft Visual C++]
+
+ The example program(s) can be found in the directory called
+ "examples" or "example".
+
+ Components that are Qt plugins, e.g. styles and image formats, are
+ ready to be used as soon as they are built, so the rest of this
+ installation instruction can be skipped.
+
+4. Building the Qt Designer plugin (optional).
+
+ Some of the widget components are provided with plugins for Qt
+ Designer. To build and install the plugin, cd into the
+ some-package/plugin directory and give the commands
+
+ qmake
+ make [or nmake if your are using Microsoft Visual C++]
+
+ Restart Qt Designer to make it load the new widget plugin.
+
+ Note: If you are using the built-in Qt Designer from the Qt Visual
+ Studio Integration, you will need to manually copy the plugin DLL
+ file, i.e. copy
+ %QTDIR%\plugins\designer\some-component.dll
+ to the Qt Visual Studio Integration plugin path, typically:
+ C:\Program Files\Trolltech\Qt VS Integration\plugins
+
+ Note: If you for some reason are using a Qt Designer that is built
+ in debug mode, you will need to build the plugin in debug mode
+ also. Edit the file plugin.pro in the plugin directory, changing
+ 'release' to 'debug' in the CONFIG line, before running qmake.
+
+
+
+Solutions components are intended to be used directly from the package
+directory during development, so there is no 'make install' procedure.
+
+
+Using a component in your project
+---------------------------------
+
+To use this component in your project, add the following line to the
+project's .pro file (or do the equivalent in your IDE):
+
+ include(your-install-dir/some-package/src/some-package.pri)
+
+This adds the package's sources and headers to the SOURCES and HEADERS
+project variables respectively (or, if the component has been
+configured as a DLL, it adds that library to the LIBS variable), and
+updates INCLUDEPATH to contain the package's src
+directory. Additionally, the .pri file may include some dependencies
+needed by the package.
+
+To include a header file from the package in your sources, you can now
+simply use:
+
+ #include <SomeClass>
+
+or alternatively, in pre-Qt 4 style:
+
+ #include <some-class.h>
+
+Refer to the documentation to see the classes and headers this
+components provides.
+
+
+
+Install documentation (optional)
+--------------------------------
+
+The HTML documentation for the package's classes is located in the
+your-install-dir/some-package/doc/html/index.html. You can open this
+file and read the documentation with any web browser.
+
+To install the documentation into Qt Assistant (for Qt version 4.4 and
+later):
+
+1. In Assistant, open the Edit->Preferences dialog and choose the
+ Documentation tab. Click the Add... button and select the file
+ your-install-dir/some-package/doc/html/some-package.qch
+
+For Qt versions prior to 4.4, do instead the following:
+
+1. The directory your-install-dir/some-package/doc/html contains a
+ file called some-package.dcf. Execute the following commands in a
+ shell, command prompt or terminal window:
+
+ cd your-install-dir/some-package/doc/html/
+ assistant -addContentFile some-package.dcf
+
+The next time you start Qt Assistant, you can access the package's
+documentation.
+
+
+Removing the documentation from assistant
+-----------------------------------------
+
+If you have installed the documentation into Qt Assistant, and want to uninstall it, do as follows, for Qt version 4.4 and later:
+
+1. In Assistant, open the Edit->Preferences dialog and choose the
+ Documentation tab. In the list of Registered Documentation, select
+ the item com.trolltech.qtsolutions.some-package_version, and click
+ the Remove button.
+
+For Qt versions prior to 4.4, do instead the following:
+
+1. The directory your-install-dir/some-package/doc/html contains a
+ file called some-package.dcf. Execute the following commands in a
+ shell, command prompt or terminal window:
+
+ cd your-install-dir/some-package/doc/html/
+ assistant -removeContentFile some-package.dcf
+
+
+
+Using the component as a DLL
+----------------------------
+
+1. Normal components
+
+ The shared library (DLL) is built and placed in the
+ some-package/lib directory. It is intended to be used directly
+ from there during development. When appropriate, both debug and
+ release versions are built, since the run-time linker will in some
+ cases refuse to load a debug-built DLL into a release-built
+ application or vice versa.
+
+ The following steps are taken by default to help the dynamic
+ linker to locate the DLL at run-time (during development):
+
+ Unix: The some-package.pri file will add linker instructions to
+ add the some-package/lib directory to the rpath of the
+ executable. (When distributing, or if your system does not support
+ rpath, you can copy the shared library to another place that is
+ searched by the dynamic linker, e.g. the "lib" directory of your
+ Qt installation.)
+
+ Mac: The full path to the library is hardcoded into the library
+ itself, from where it is copied into the executable at link time,
+ and ready by the dynamic linker at run-time. (When distributing,
+ you will want to edit these hardcoded paths in the same way as for
+ the Qt DLLs. Refer to the document "Deploying an Application on
+ Mac OS X" in the Qt Reference Documentation.)
+
+ Windows: the .dll file(s) are copied into the "bin" directory of
+ your Qt installation. The Qt installation will already have set up
+ that directory to be searched by the dynamic linker.
+
+
+2. Plugins
+
+ For Qt Solutions plugins (e.g. image formats), both debug and
+ release versions of the plugin are built by default when
+ appropriate, since in some cases the release Qt library will not
+ load a debug plugin, and vice versa. The plugins are automatically
+ copied into the plugins directory of your Qt installation when
+ built, so no further setup is required.
+
+ Plugins may also be built statically, i.e. as a library that will be
+ linked into your application executable, and so will not need to
+ be redistributed as a separate plugin DLL to end users. Static
+ building is required if Qt itself is built statically. To do it,
+ just add "static" to the CONFIG variable in the plugin/plugin.pro
+ file before building. Refer to the "Static Plugins" section in the
+ chapter "How to Create Qt Plugins" for explanation of how to use a
+ static plugin in your application. The source code of the example
+ program(s) will also typically contain the relevant instructions
+ as comments.
+
+
+
+Uninstalling
+------------
+
+ The following command will remove any fils that have been
+ automatically placed outside the package directory itself during
+ installation and building
+
+ make distclean [or nmake if your are using Microsoft Visual C++]
+
+ If Qt Assistant documentation or Qt Designer plugins have been
+ installed, they can be uninstalled manually, ref. above.
+
+
+Enjoy! :)
+
+- The Qt Solutions Team.
--- /dev/null
+Nokia Qt LGPL Exception version 1.0
+
+As a special exception to the GNU Lesser General Public License
+version 2.1, the object code form of a "work that uses the Library"
+may incorporate material from a header file that is part of the
+Library. You may distribute such object code under terms of your
+choice, provided that the incorporated material (i) does not exceed
+more than 5% of the total size of the Library; and (ii) is limited to
+numerical parameters, data structure layouts, accessors, macros,
+inline functions and templates.
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
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+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+
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+library, provided that the separate distribution of the work based on
+the Library and of the other library facilities is otherwise
+permitted, and provided that you do these two things:
+
+ a) Accompany the combined library with a copy of the same work
+ based on the Library, uncombined with any other library
+ facilities. This must be distributed under the terms of the
+ Sections above.
+
+ b) Give prominent notice with the combined library of the fact
+ that part of it is a work based on the Library, and explaining
+ where to find the accompanying uncombined form of the same work.
+
+ 8. You may not copy, modify, sublicense, link with, or distribute
+the Library except as expressly provided under this License. Any
+attempt otherwise to copy, modify, sublicense, link with, or
+distribute the Library is void, and will automatically terminate your
+rights under this License. However, parties who have received copies,
+or rights, from you under this License will not have their licenses
+terminated so long as such parties remain in full compliance.
+
+ 9. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Library or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Library (or any work based on the
+Library), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Library or works based on it.
+
+ 10. Each time you redistribute the Library (or any work based on the
+Library), the recipient automatically receives a license from the
+original licensor to copy, distribute, link with or modify the Library
+subject to these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties with
+this License.
+\f
+ 11. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Library at all. For example, if a patent
+license would not permit royalty-free redistribution of the Library by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded. In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+ 13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser General Public License from time to time.
+Such new versions will be similar in spirit to the present version,
+but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library
+specifies a version number of this License which applies to it and
+"any later version", you have the option of following the terms and
+conditions either of that version or of any later version published by
+the Free Software Foundation. If the Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+\f
+ 14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+write to the author to ask for permission. For software which is
+copyrighted by the Free Software Foundation, write to the Free
+Software Foundation; we sometimes make exceptions for this. Our
+decision will be guided by the two goals of preserving the free status
+of all derivatives of our free software and of promoting the sharing
+and reuse of software generally.
+
+ NO WARRANTY
+
+ 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Libraries
+
+ If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change. You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+ To apply these terms, attach the following notices to the library. It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the library's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the
+ library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+ <signature of Ty Coon>, 1 April 1990
+ Ty Coon, President of Vice
+
+That's all there is to it!
+
+
--- /dev/null
+Single Application v2.6
+
+The QtSingleApplication component provides support for
+applications that can be only started once per user.
+
+
+
--- /dev/null
+TEMPLATE=lib
+CONFIG += qt dll qtsingleapplication-buildlib
+mac:CONFIG += absolute_library_soname
+win32|mac:!wince*:!win32-msvc:!macx-xcode:CONFIG += debug_and_release build_all
+include(../src/qtsingleapplication.pri)
+TARGET = $$QTSINGLEAPPLICATION_LIBNAME
+DESTDIR = $$QTSINGLEAPPLICATION_LIBDIR
+win32 {
+ DLLDESTDIR = $$[QT_INSTALL_BINS]
+ QMAKE_DISTCLEAN += $$[QT_INSTALL_BINS]\\$${QTSINGLEAPPLICATION_LIBNAME}.dll
+}
+target.path = $$DESTDIR
+INSTALLS += target
--- /dev/null
+infile(config.pri, SOLUTIONS_LIBRARY, yes): CONFIG += qtsingleapplication-uselib
+TEMPLATE += fakelib
+QTSINGLEAPPLICATION_LIBNAME = $$qtLibraryTarget(QtSolutions_SingleApplication-2.6)
+TEMPLATE -= fakelib
+QTSINGLEAPPLICATION_LIBDIR = $$PWD/lib
+unix:qtsingleapplication-uselib:!qtsingleapplication-buildlib:QMAKE_RPATHDIR += $$QTSINGLEAPPLICATION_LIBDIR
--- /dev/null
+SOLUTIONS_LIBRARY = yes
--- /dev/null
+@echo off
+
+rem
+rem "Main"
+rem
+
+if not "%1"=="" (
+ if not "%1"=="-library" (
+ call :PrintUsage
+ goto EOF
+ )
+)
+
+rem only ask to accept the license text once
+if exist .licenseAccepted goto HandleArgs
+
+rem determine if free or commercial package
+set edition=commercial
+if exist LICENSE.LGPL. set edition=free
+
+if %edition%==free (
+ call :HandleFree
+) else (
+ call :RegionLoop
+ call :Comm
+)
+echo .
+
+if not exist .licenseAccepted (
+ echo You are not licensed to use this software.
+ goto EOF
+)
+
+:HandleArgs
+if exist config.pri. del config.pri
+if "%1"=="-library" (
+ echo Configuring to build this component as a dynamic library.
+ echo SOLUTIONS_LIBRARY = yes > config.pri
+)
+
+echo .
+echo This component is now configured.
+echo .
+echo To build the component library (if requested) and example(s),
+echo run qmake and your make or nmake command.
+echo .
+echo To remove or reconfigure, run make (nmake) distclean.
+echo .
+
+goto EOF
+
+rem
+rem "License acceptance loops"
+rem
+
+:RegionLoop
+ echo .
+ echo Please choose your region.
+ echo .
+ echo Type 1 for North or South America.
+ echo Type 2 for anywhere outside North and South America.
+ echo .
+ set /p region=Select:
+ if %region%==1 (
+ set licenseFile=LICENSE.US
+ goto EOF
+ )
+ if %region%==2 (
+ set licenseFile=LICENSE.NO
+ goto EOF
+ )
+goto RegionLoop
+
+:HandleFree
+ echo .
+ echo You are licensed to use this software under the terms of
+ echo the GNU General Public License (GPL) version 3, or
+ echo the GNU Lesser General Public License (LGPL) version 2.1
+ echo with certain additional extra rights as specified in the
+ echo Nokia Qt LGPL Exception version 1.0.
+ echo .
+ echo Type 'G' to view the GNU General Public License (GPL) version 3
+ echo Type 'L' to view the GNU Lesser General Public License (LGPL) version 2.1
+ echo Type 'E' to view the Nokia Qt LGPL Exception version 1.0.
+ echo Type 'yes' to accept this license offer.
+ echo Type 'no' to decline this license offer.
+ echo .
+ set /p answer=Do you accept the terms of this license?
+
+ if %answer%==no goto EOF
+ if %answer%==yes (
+ echo license accepted > .licenseAccepted
+ goto EOF
+ )
+ if %answer%==g more LICENSE.GPL3
+ if %answer%==G more LICENSE.GPL3
+ if %answer%==l more LICENSE.LGPL
+ if %answer%==L more LICENSE.LGPL
+ if %answer%==e more LGPL_EXCEPTION.txt
+ if %answer%==E more LGPL_EXCEPTION.txt
+goto HandleFree
+
+:Comm
+ echo .
+ echo License Agreement
+ echo .
+ echo Type '?' to view the Qt Solutions Commercial License.
+ echo Type 'yes' to accept this license offer.
+ echo Type 'no' to decline this license offer.
+ echo .
+ set /p answer=Do you accept the terms of this license?
+
+ if %answer%==no goto EOF
+ if %answer%==yes (
+ echo license accepted > .licenseAccepted
+ copy %licenseFile% LICENSE
+ del LICENSE.US
+ del LICENSE.NO
+ goto EOF
+ )
+ if %answer%==? more %licenseFile%
+goto Comm
+
+:PrintUsage
+echo Usage: configure.bat [-library]
+echo .
+echo -library: Build the component as a dynamic library (DLL). Default is to
+echo include the component source directly in the application.
+echo A DLL may be preferable for technical or licensing (LGPL) reasons.
+echo .
+goto EOF
+
+
+:EOF
--- /dev/null
+TEMPLATE=subdirs
+CONFIG += ordered
+include(common.pri)
+qtsingleapplication-uselib:SUBDIRS=buildlib
+SUBDIRS+=examples
--- /dev/null
+#include "qtlockedfile.h"
--- /dev/null
+#include "qtsingleapplication.h"
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include "qtlocalpeer.h"
+#include <QtCore/QCoreApplication>
+#include <QtCore/QTime>
+
+#if defined(Q_OS_WIN)
+#include <QtCore/QLibrary>
+#include <QtCore/qt_windows.h>
+typedef BOOL(WINAPI*PProcessIdToSessionId)(DWORD,DWORD*);
+static PProcessIdToSessionId pProcessIdToSessionId = 0;
+#endif
+#if defined(Q_OS_UNIX)
+#include <time.h>
+#endif
+
+namespace QtLP_Private {
+#include "qtlockedfile.cpp"
+#if defined(Q_OS_WIN)
+#include "qtlockedfile_win.cpp"
+#else
+#include "qtlockedfile_unix.cpp"
+#endif
+}
+
+const char* QtLocalPeer::ack = "ack";
+
+QtLocalPeer::QtLocalPeer(QObject* parent, const QString &appId)
+ : QObject(parent), id(appId)
+{
+ QString prefix = id;
+ if (id.isEmpty()) {
+ id = QCoreApplication::applicationFilePath();
+#if defined(Q_OS_WIN)
+ id = id.toLower();
+#endif
+ prefix = id.section(QLatin1Char('/'), -1);
+ }
+ prefix.remove(QRegExp("[^a-zA-Z]"));
+ prefix.truncate(6);
+
+ QByteArray idc = id.toUtf8();
+ quint16 idNum = qChecksum(idc.constData(), idc.size());
+ socketName = QLatin1String("qtsingleapp-") + prefix
+ + QLatin1Char('-') + QString::number(idNum, 16);
+
+#if defined(Q_OS_WIN)
+ if (!pProcessIdToSessionId) {
+ QLibrary lib("kernel32");
+ pProcessIdToSessionId = (PProcessIdToSessionId)lib.resolve("ProcessIdToSessionId");
+ }
+ if (pProcessIdToSessionId) {
+ DWORD sessionId = 0;
+ pProcessIdToSessionId(GetCurrentProcessId(), &sessionId);
+ socketName += QLatin1Char('-') + QString::number(sessionId, 16);
+ }
+#else
+ socketName += QLatin1Char('-') + QString::number(::getuid(), 16);
+#endif
+
+ server = new QLocalServer(this);
+ QString lockName = QDir(QDir::tempPath()).absolutePath()
+ + QLatin1Char('/') + socketName
+ + QLatin1String("-lockfile");
+ lockFile.setFileName(lockName);
+ lockFile.open(QIODevice::ReadWrite);
+}
+
+
+
+bool QtLocalPeer::isClient()
+{
+ if (lockFile.isLocked())
+ return false;
+
+ if (!lockFile.lock(QtLP_Private::QtLockedFile::WriteLock, false))
+ return true;
+
+ bool res = server->listen(socketName);
+#if defined(Q_OS_UNIX) && (QT_VERSION >= QT_VERSION_CHECK(4,5,0))
+ // ### Workaround
+ if (!res && server->serverError() == QAbstractSocket::AddressInUseError) {
+ QFile::remove(QDir::cleanPath(QDir::tempPath())+QLatin1Char('/')+socketName);
+ res = server->listen(socketName);
+ }
+#endif
+ if (!res)
+ qWarning("QtSingleCoreApplication: listen on local socket failed, %s", qPrintable(server->errorString()));
+ QObject::connect(server, SIGNAL(newConnection()), SLOT(receiveConnection()));
+ return false;
+}
+
+
+bool QtLocalPeer::sendMessage(const QString &message, int timeout)
+{
+ if (!isClient())
+ return false;
+
+ QLocalSocket socket;
+ bool connOk = false;
+ for(int i = 0; i < 2; i++) {
+ // Try twice, in case the other instance is just starting up
+ socket.connectToServer(socketName);
+ connOk = socket.waitForConnected(timeout/2);
+ if (connOk || i)
+ break;
+ int ms = 250;
+#if defined(Q_OS_WIN)
+ Sleep(DWORD(ms));
+#else
+ struct timespec ts = { ms / 1000, (ms % 1000) * 1000 * 1000 };
+ nanosleep(&ts, NULL);
+#endif
+ }
+ if (!connOk)
+ return false;
+
+ QByteArray uMsg(message.toUtf8());
+ QDataStream ds(&socket);
+ ds.writeBytes(uMsg.constData(), uMsg.size());
+ bool res = socket.waitForBytesWritten(timeout);
+ res &= socket.waitForReadyRead(timeout); // wait for ack
+ res &= (socket.read(qstrlen(ack)) == ack);
+ return res;
+}
+
+
+void QtLocalPeer::receiveConnection()
+{
+ QLocalSocket* socket = server->nextPendingConnection();
+ if (!socket)
+ return;
+
+ while (socket->bytesAvailable() < (int)sizeof(quint32))
+ socket->waitForReadyRead();
+ QDataStream ds(socket);
+ QByteArray uMsg;
+ quint32 remaining;
+ ds >> remaining;
+ uMsg.resize(remaining);
+ int got = 0;
+ char* uMsgBuf = uMsg.data();
+ do {
+ got = ds.readRawData(uMsgBuf, remaining);
+ remaining -= got;
+ uMsgBuf += got;
+ } while (remaining && got >= 0 && socket->waitForReadyRead(2000));
+ if (got < 0) {
+ qWarning() << "QtLocalPeer: Message reception failed" << socket->errorString();
+ delete socket;
+ return;
+ }
+ QString message(QString::fromUtf8(uMsg));
+ socket->write(ack, qstrlen(ack));
+ socket->waitForBytesWritten(1000);
+ delete socket;
+ emit messageReceived(message); //### (might take a long time to return)
+}
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include <QtNetwork/QLocalServer>
+#include <QtNetwork/QLocalSocket>
+#include <QtCore/QDir>
+
+namespace QtLP_Private {
+#include "qtlockedfile.h"
+}
+
+class QtLocalPeer : public QObject
+{
+ Q_OBJECT
+
+public:
+ QtLocalPeer(QObject *parent = 0, const QString &appId = QString());
+ bool isClient();
+ bool sendMessage(const QString &message, int timeout);
+ QString applicationId() const
+ { return id; }
+
+Q_SIGNALS:
+ void messageReceived(const QString &message);
+
+protected Q_SLOTS:
+ void receiveConnection();
+
+protected:
+ QString id;
+ QString socketName;
+ QLocalServer* server;
+ QtLP_Private::QtLockedFile lockFile;
+
+private:
+ static const char* ack;
+};
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+#include "qtlockedfile.h"
+
+/*!
+ \class QtLockedFile
+
+ \brief The QtLockedFile class extends QFile with advisory locking
+ functions.
+
+ A file may be locked in read or write mode. Multiple instances of
+ \e QtLockedFile, created in multiple processes running on the same
+ machine, may have a file locked in read mode. Exactly one instance
+ may have it locked in write mode. A read and a write lock cannot
+ exist simultaneously on the same file.
+
+ The file locks are advisory. This means that nothing prevents
+ another process from manipulating a locked file using QFile or
+ file system functions offered by the OS. Serialization is only
+ guaranteed if all processes that access the file use
+ QLockedFile. Also, while holding a lock on a file, a process
+ must not open the same file again (through any API), or locks
+ can be unexpectedly lost.
+
+ The lock provided by an instance of \e QtLockedFile is released
+ whenever the program terminates. This is true even when the
+ program crashes and no destructors are called.
+*/
+
+/*! \enum QtLockedFile::LockMode
+
+ This enum describes the available lock modes.
+
+ \value ReadLock A read lock.
+ \value WriteLock A write lock.
+ \value NoLock Neither a read lock nor a write lock.
+*/
+
+/*!
+ Constructs an unlocked \e QtLockedFile object. This constructor
+ behaves in the same way as \e QFile::QFile().
+
+ \sa QFile::QFile()
+*/
+QtLockedFile::QtLockedFile()
+ : QFile()
+{
+#ifdef Q_OS_WIN
+ wmutex = 0;
+ rmutex = 0;
+#endif
+ m_lock_mode = NoLock;
+}
+
+/*!
+ Constructs an unlocked QtLockedFile object with file \a name. This
+ constructor behaves in the same way as \e QFile::QFile(const
+ QString&).
+
+ \sa QFile::QFile()
+*/
+QtLockedFile::QtLockedFile(const QString &name)
+ : QFile(name)
+{
+#ifdef Q_OS_WIN
+ wmutex = 0;
+ rmutex = 0;
+#endif
+ m_lock_mode = NoLock;
+}
+
+/*!
+ Opens the file in OpenMode \a mode.
+
+ This is identical to QFile::open(), with the one exception that the
+ Truncate mode flag is disallowed. Truncation would conflict with the
+ advisory file locking, since the file would be modified before the
+ write lock is obtained. If truncation is required, use resize(0)
+ after obtaining the write lock.
+
+ Returns true if successful; otherwise false.
+
+ \sa QFile::open(), QFile::resize()
+*/
+bool QtLockedFile::open(OpenMode mode)
+{
+ if (mode & QIODevice::Truncate) {
+ qWarning("QtLockedFile::open(): Truncate mode not allowed.");
+ return false;
+ }
+ return QFile::open(mode);
+}
+
+/*!
+ Returns \e true if this object has a in read or write lock;
+ otherwise returns \e false.
+
+ \sa lockMode()
+*/
+bool QtLockedFile::isLocked() const
+{
+ return m_lock_mode != NoLock;
+}
+
+/*!
+ Returns the type of lock currently held by this object, or \e
+ QtLockedFile::NoLock.
+
+ \sa isLocked()
+*/
+QtLockedFile::LockMode QtLockedFile::lockMode() const
+{
+ return m_lock_mode;
+}
+
+/*!
+ \fn bool QtLockedFile::lock(LockMode mode, bool block = true)
+
+ Obtains a lock of type \a mode. The file must be opened before it
+ can be locked.
+
+ If \a block is true, this function will block until the lock is
+ aquired. If \a block is false, this function returns \e false
+ immediately if the lock cannot be aquired.
+
+ If this object already has a lock of type \a mode, this function
+ returns \e true immediately. If this object has a lock of a
+ different type than \a mode, the lock is first released and then a
+ new lock is obtained.
+
+ This function returns \e true if, after it executes, the file is
+ locked by this object, and \e false otherwise.
+
+ \sa unlock(), isLocked(), lockMode()
+*/
+
+/*!
+ \fn bool QtLockedFile::unlock()
+
+ Releases a lock.
+
+ If the object has no lock, this function returns immediately.
+
+ This function returns \e true if, after it executes, the file is
+ not locked by this object, and \e false otherwise.
+
+ \sa lock(), isLocked(), lockMode()
+*/
+
+/*!
+ \fn QtLockedFile::~QtLockedFile()
+
+ Destroys the \e QtLockedFile object. If any locks were held, they
+ are released.
+*/
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+#ifndef QTLOCKEDFILE_H
+#define QTLOCKEDFILE_H
+
+#include <QtCore/QFile>
+#ifdef Q_OS_WIN
+#include <QtCore/QVector>
+#endif
+
+#if defined(Q_WS_WIN)
+# if !defined(QT_QTLOCKEDFILE_EXPORT) && !defined(QT_QTLOCKEDFILE_IMPORT)
+# define QT_QTLOCKEDFILE_EXPORT
+# elif defined(QT_QTLOCKEDFILE_IMPORT)
+# if defined(QT_QTLOCKEDFILE_EXPORT)
+# undef QT_QTLOCKEDFILE_EXPORT
+# endif
+# define QT_QTLOCKEDFILE_EXPORT __declspec(dllimport)
+# elif defined(QT_QTLOCKEDFILE_EXPORT)
+# undef QT_QTLOCKEDFILE_EXPORT
+# define QT_QTLOCKEDFILE_EXPORT __declspec(dllexport)
+# endif
+#else
+# define QT_QTLOCKEDFILE_EXPORT
+#endif
+
+class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile
+{
+public:
+ enum LockMode { NoLock = 0, ReadLock, WriteLock };
+
+ QtLockedFile();
+ QtLockedFile(const QString &name);
+ ~QtLockedFile();
+
+ bool open(OpenMode mode);
+
+ bool lock(LockMode mode, bool block = true);
+ bool unlock();
+ bool isLocked() const;
+ LockMode lockMode() const;
+
+private:
+#ifdef Q_OS_WIN
+ Qt::HANDLE wmutex;
+ Qt::HANDLE rmutex;
+ QVector<Qt::HANDLE> rmutexes;
+ QString mutexname;
+
+ Qt::HANDLE getMutexHandle(int idx, bool doCreate);
+ bool waitMutex(Qt::HANDLE mutex, bool doBlock);
+
+#endif
+ LockMode m_lock_mode;
+};
+
+#endif
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "qtlockedfile.h"
+
+bool QtLockedFile::lock(LockMode mode, bool block)
+{
+ if (!isOpen()) {
+ qWarning("QtLockedFile::lock(): file is not opened");
+ return false;
+ }
+
+ if (mode == NoLock)
+ return unlock();
+
+ if (mode == m_lock_mode)
+ return true;
+
+ if (m_lock_mode != NoLock)
+ unlock();
+
+ struct flock fl;
+ fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0;
+ fl.l_type = (mode == ReadLock) ? F_RDLCK : F_WRLCK;
+ int cmd = block ? F_SETLKW : F_SETLK;
+ int ret = fcntl(handle(), cmd, &fl);
+
+ if (ret == -1) {
+ if (errno != EINTR && errno != EAGAIN)
+ qWarning("QtLockedFile::lock(): fcntl: %s", strerror(errno));
+ return false;
+ }
+
+
+ m_lock_mode = mode;
+ return true;
+}
+
+
+bool QtLockedFile::unlock()
+{
+ if (!isOpen()) {
+ qWarning("QtLockedFile::unlock(): file is not opened");
+ return false;
+ }
+
+ if (!isLocked())
+ return true;
+
+ struct flock fl;
+ fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 0;
+ fl.l_type = F_UNLCK;
+ int ret = fcntl(handle(), F_SETLKW, &fl);
+
+ if (ret == -1) {
+ qWarning("QtLockedFile::lock(): fcntl: %s", strerror(errno));
+ return false;
+ }
+
+ m_lock_mode = NoLock;
+ return true;
+}
+
+QtLockedFile::~QtLockedFile()
+{
+ if (isOpen())
+ unlock();
+}
+
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+#include "qtlockedfile.h"
+#include <qt_windows.h>
+#include <QtCore/QFileInfo>
+
+#define MUTEX_PREFIX "QtLockedFile mutex "
+// Maximum number of concurrent read locks. Must not be greater than MAXIMUM_WAIT_OBJECTS
+#define MAX_READERS MAXIMUM_WAIT_OBJECTS
+
+Qt::HANDLE QtLockedFile::getMutexHandle(int idx, bool doCreate)
+{
+ if (mutexname.isEmpty()) {
+ QFileInfo fi(*this);
+ mutexname = QString::fromLatin1(MUTEX_PREFIX)
+ + fi.absoluteFilePath().toLower();
+ }
+ QString mname(mutexname);
+ if (idx >= 0)
+ mname += QString::number(idx);
+
+ Qt::HANDLE mutex;
+ if (doCreate) {
+ QT_WA( { mutex = CreateMutexW(NULL, FALSE, (TCHAR*)mname.utf16()); },
+ { mutex = CreateMutexA(NULL, FALSE, mname.toLocal8Bit().constData()); } );
+ if (!mutex) {
+ qErrnoWarning("QtLockedFile::lock(): CreateMutex failed");
+ return 0;
+ }
+ }
+ else {
+ QT_WA( { mutex = OpenMutexW(SYNCHRONIZE | MUTEX_MODIFY_STATE, FALSE, (TCHAR*)mname.utf16()); },
+ { mutex = OpenMutexA(SYNCHRONIZE | MUTEX_MODIFY_STATE, FALSE, mname.toLocal8Bit().constData()); } );
+ if (!mutex) {
+ if (GetLastError() != ERROR_FILE_NOT_FOUND)
+ qErrnoWarning("QtLockedFile::lock(): OpenMutex failed");
+ return 0;
+ }
+ }
+ return mutex;
+}
+
+bool QtLockedFile::waitMutex(Qt::HANDLE mutex, bool doBlock)
+{
+ Q_ASSERT(mutex);
+ DWORD res = WaitForSingleObject(mutex, doBlock ? INFINITE : 0);
+ switch (res) {
+ case WAIT_OBJECT_0:
+ case WAIT_ABANDONED:
+ return true;
+ break;
+ case WAIT_TIMEOUT:
+ break;
+ default:
+ qErrnoWarning("QtLockedFile::lock(): WaitForSingleObject failed");
+ }
+ return false;
+}
+
+
+
+bool QtLockedFile::lock(LockMode mode, bool block)
+{
+ if (!isOpen()) {
+ qWarning("QtLockedFile::lock(): file is not opened");
+ return false;
+ }
+
+ if (mode == NoLock)
+ return unlock();
+
+ if (mode == m_lock_mode)
+ return true;
+
+ if (m_lock_mode != NoLock)
+ unlock();
+
+ if (!wmutex && !(wmutex = getMutexHandle(-1, true)))
+ return false;
+
+ if (!waitMutex(wmutex, block))
+ return false;
+
+ if (mode == ReadLock) {
+ int idx = 0;
+ for (; idx < MAX_READERS; idx++) {
+ rmutex = getMutexHandle(idx, false);
+ if (!rmutex || waitMutex(rmutex, false))
+ break;
+ CloseHandle(rmutex);
+ }
+ bool ok = true;
+ if (idx >= MAX_READERS) {
+ qWarning("QtLockedFile::lock(): too many readers");
+ rmutex = 0;
+ ok = false;
+ }
+ else if (!rmutex) {
+ rmutex = getMutexHandle(idx, true);
+ if (!rmutex || !waitMutex(rmutex, false))
+ ok = false;
+ }
+ if (!ok && rmutex) {
+ CloseHandle(rmutex);
+ rmutex = 0;
+ }
+ ReleaseMutex(wmutex);
+ if (!ok)
+ return false;
+ }
+ else {
+ Q_ASSERT(rmutexes.isEmpty());
+ for (int i = 0; i < MAX_READERS; i++) {
+ Qt::HANDLE mutex = getMutexHandle(i, false);
+ if (mutex)
+ rmutexes.append(mutex);
+ }
+ if (rmutexes.size()) {
+ DWORD res = WaitForMultipleObjects(rmutexes.size(), rmutexes.constData(),
+ TRUE, block ? INFINITE : 0);
+ if (res != WAIT_OBJECT_0 && res != WAIT_ABANDONED) {
+ if (res != WAIT_TIMEOUT)
+ qErrnoWarning("QtLockedFile::lock(): WaitForMultipleObjects failed");
+ m_lock_mode = WriteLock; // trick unlock() to clean up - semiyucky
+ unlock();
+ return false;
+ }
+ }
+ }
+
+ m_lock_mode = mode;
+ return true;
+}
+
+bool QtLockedFile::unlock()
+{
+ if (!isOpen()) {
+ qWarning("QtLockedFile::unlock(): file is not opened");
+ return false;
+ }
+
+ if (!isLocked())
+ return true;
+
+ if (m_lock_mode == ReadLock) {
+ ReleaseMutex(rmutex);
+ CloseHandle(rmutex);
+ rmutex = 0;
+ }
+ else {
+ foreach(Qt::HANDLE mutex, rmutexes) {
+ ReleaseMutex(mutex);
+ CloseHandle(mutex);
+ }
+ rmutexes.clear();
+ ReleaseMutex(wmutex);
+ }
+
+ m_lock_mode = QtLockedFile::NoLock;
+ return true;
+}
+
+QtLockedFile::~QtLockedFile()
+{
+ if (isOpen())
+ unlock();
+ if (wmutex)
+ CloseHandle(wmutex);
+}
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include "qtsingleapplication.h"
+#include "qtlocalpeer.h"
+#include <QtGui/QWidget>
+
+
+/*!
+ \class QtSingleApplication qtsingleapplication.h
+ \brief The QtSingleApplication class provides an API to detect and
+ communicate with running instances of an application.
+
+ This class allows you to create applications where only one
+ instance should be running at a time. I.e., if the user tries to
+ launch another instance, the already running instance will be
+ activated instead. Another usecase is a client-server system,
+ where the first started instance will assume the role of server,
+ and the later instances will act as clients of that server.
+
+ By default, the full path of the executable file is used to
+ determine whether two processes are instances of the same
+ application. You can also provide an explicit identifier string
+ that will be compared instead.
+
+ The application should create the QtSingleApplication object early
+ in the startup phase, and call isRunning() or sendMessage() to
+ find out if another instance of this application is already
+ running. Startup parameters (e.g. the name of the file the user
+ wanted this new instance to open) can be passed to the running
+ instance in the sendMessage() function.
+
+ If isRunning() or sendMessage() returns false, it means that no
+ other instance is running, and this instance has assumed the role
+ as the running instance. The application should continue with the
+ initialization of the application user interface before entering
+ the event loop with exec(), as normal. The messageReceived()
+ signal will be emitted when the application receives messages from
+ another instance of the same application.
+
+ If isRunning() or sendMessage() returns true, another instance is
+ already running, and the application should terminate or enter
+ client mode.
+
+ If a message is received it might be helpful to the user to raise
+ the application so that it becomes visible. To facilitate this,
+ QtSingleApplication provides the setActivationWindow() function
+ and the activateWindow() slot.
+
+ Here's an example that shows how to convert an existing
+ application to use QtSingleApplication. It is very simple and does
+ not make use of all QtSingleApplication's functionality (see the
+ examples for that).
+
+ \code
+ // Original
+ int main(int argc, char **argv)
+ {
+ QApplication app(argc, argv);
+
+ MyMainWidget mmw;
+
+ mmw.show();
+ return app.exec();
+ }
+
+ // Single instance
+ int main(int argc, char **argv)
+ {
+ QtSingleApplication app(argc, argv);
+
+ if (app.isRunning())
+ return 0;
+
+ MyMainWidget mmw;
+
+ app.setActivationWindow(&mmw);
+
+ mmw.show();
+ return app.exec();
+ }
+ \endcode
+
+ Once this QtSingleApplication instance is destroyed(for example,
+ when the user quits), when the user next attempts to run the
+ application this instance will not, of course, be encountered. The
+ next instance to call isRunning() or sendMessage() will assume the
+ role as the new running instance.
+
+ For console (non-GUI) applications, QtSingleCoreApplication may be
+ used instead of this class, to avoid the dependency on the QtGui
+ library.
+
+ \sa QtSingleCoreApplication
+*/
+
+
+void QtSingleApplication::sysInit(const QString &appId)
+{
+ actWin = 0;
+ peer = new QtLocalPeer(this, appId);
+ connect(peer, SIGNAL(messageReceived(const QString&)), SIGNAL(messageReceived(const QString&)));
+}
+
+
+/*!
+ Creates a QtSingleApplication object. The application identifier
+ will be QCoreApplication::applicationFilePath(). \a argc, \a
+ argv, and \a GUIenabled are passed on to the QAppliation constructor.
+
+ If you are creating a console application (i.e. setting \a
+ GUIenabled to false), you may consider using
+ QtSingleCoreApplication instead.
+*/
+
+QtSingleApplication::QtSingleApplication(int &argc, char **argv, bool GUIenabled)
+ : QApplication(argc, argv, GUIenabled)
+{
+ sysInit();
+}
+
+
+/*!
+ Creates a QtSingleApplication object with the application
+ identifier \a appId. \a argc and \a argv are passed on to the
+ QAppliation constructor.
+*/
+
+QtSingleApplication::QtSingleApplication(const QString &appId, int &argc, char **argv)
+ : QApplication(argc, argv)
+{
+ sysInit(appId);
+}
+
+
+/*!
+ Creates a QtSingleApplication object. The application identifier
+ will be QCoreApplication::applicationFilePath(). \a argc, \a
+ argv, and \a type are passed on to the QAppliation constructor.
+*/
+QtSingleApplication::QtSingleApplication(int &argc, char **argv, Type type)
+ : QApplication(argc, argv, type)
+{
+ sysInit();
+}
+
+
+#if defined(Q_WS_X11)
+/*!
+ Special constructor for X11, ref. the documentation of
+ QApplication's corresponding constructor. The application identifier
+ will be QCoreApplication::applicationFilePath(). \a dpy, \a visual,
+ and \a cmap are passed on to the QApplication constructor.
+*/
+QtSingleApplication::QtSingleApplication(Display* dpy, Qt::HANDLE visual, Qt::HANDLE cmap)
+ : QApplication(dpy, visual, cmap)
+{
+ sysInit();
+}
+
+/*!
+ Special constructor for X11, ref. the documentation of
+ QApplication's corresponding constructor. The application identifier
+ will be QCoreApplication::applicationFilePath(). \a dpy, \a argc, \a
+ argv, \a visual, and \a cmap are passed on to the QApplication
+ constructor.
+*/
+QtSingleApplication::QtSingleApplication(Display *dpy, int &argc, char **argv, Qt::HANDLE visual, Qt::HANDLE cmap)
+ : QApplication(dpy, argc, argv, visual, cmap)
+{
+ sysInit();
+}
+
+/*!
+ Special constructor for X11, ref. the documentation of
+ QApplication's corresponding constructor. The application identifier
+ will be \a appId. \a dpy, \a argc, \a
+ argv, \a visual, and \a cmap are passed on to the QApplication
+ constructor.
+*/
+QtSingleApplication::QtSingleApplication(Display* dpy, const QString &appId, int argc, char **argv, Qt::HANDLE visual, Qt::HANDLE cmap)
+ : QApplication(dpy, argc, argv, visual, cmap)
+{
+ sysInit(appId);
+}
+#endif
+
+
+/*!
+ Returns true if another instance of this application is running;
+ otherwise false.
+
+ This function does not find instances of this application that are
+ being run by a different user (on Windows: that are running in
+ another session).
+
+ \sa sendMessage()
+*/
+
+bool QtSingleApplication::isRunning()
+{
+ return peer->isClient();
+}
+
+
+/*!
+ Tries to send the text \a message to the currently running
+ instance. The QtSingleApplication object in the running instance
+ will emit the messageReceived() signal when it receives the
+ message.
+
+ This function returns true if the message has been sent to, and
+ processed by, the current instance. If there is no instance
+ currently running, or if the running instance fails to process the
+ message within \a timeout milliseconds, this function return false.
+
+ \sa isRunning(), messageReceived()
+*/
+bool QtSingleApplication::sendMessage(const QString &message, int timeout)
+{
+ return peer->sendMessage(message, timeout);
+}
+
+
+/*!
+ Returns the application identifier. Two processes with the same
+ identifier will be regarded as instances of the same application.
+*/
+QString QtSingleApplication::id() const
+{
+ return peer->applicationId();
+}
+
+
+/*!
+ Sets the activation window of this application to \a aw. The
+ activation window is the widget that will be activated by
+ activateWindow(). This is typically the application's main window.
+
+ If \a activateOnMessage is true (the default), the window will be
+ activated automatically every time a message is received, just prior
+ to the messageReceived() signal being emitted.
+
+ \sa activateWindow(), messageReceived()
+*/
+
+void QtSingleApplication::setActivationWindow(QWidget* aw, bool activateOnMessage)
+{
+ actWin = aw;
+ if (activateOnMessage)
+ connect(peer, SIGNAL(messageReceived(const QString&)), this, SLOT(activateWindow()));
+ else
+ disconnect(peer, SIGNAL(messageReceived(const QString&)), this, SLOT(activateWindow()));
+}
+
+
+/*!
+ Returns the applications activation window if one has been set by
+ calling setActivationWindow(), otherwise returns 0.
+
+ \sa setActivationWindow()
+*/
+QWidget* QtSingleApplication::activationWindow() const
+{
+ return actWin;
+}
+
+
+/*!
+ De-minimizes, raises, and activates this application's activation window.
+ This function does nothing if no activation window has been set.
+
+ This is a convenience function to show the user that this
+ application instance has been activated when he has tried to start
+ another instance.
+
+ This function should typically be called in response to the
+ messageReceived() signal. By default, that will happen
+ automatically, if an activation window has been set.
+
+ \sa setActivationWindow(), messageReceived(), initialize()
+*/
+void QtSingleApplication::activateWindow()
+{
+ if (actWin) {
+ actWin->setWindowState(actWin->windowState() & ~Qt::WindowMinimized);
+ actWin->raise();
+ actWin->activateWindow();
+ }
+}
+
+
+/*!
+ \fn void QtSingleApplication::messageReceived(const QString& message)
+
+ This signal is emitted when the current instance receives a \a
+ message from another instance of this application.
+
+ \sa sendMessage(), setActivationWindow(), activateWindow()
+*/
+
+
+/*!
+ \fn void QtSingleApplication::initialize(bool dummy = true)
+
+ \obsolete
+*/
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include <QtGui/QApplication>
+
+class QtLocalPeer;
+
+#if defined(Q_WS_WIN)
+# if !defined(QT_QTSINGLEAPPLICATION_EXPORT) && !defined(QT_QTSINGLEAPPLICATION_IMPORT)
+# define QT_QTSINGLEAPPLICATION_EXPORT
+# elif defined(QT_QTSINGLEAPPLICATION_IMPORT)
+# if defined(QT_QTSINGLEAPPLICATION_EXPORT)
+# undef QT_QTSINGLEAPPLICATION_EXPORT
+# endif
+# define QT_QTSINGLEAPPLICATION_EXPORT __declspec(dllimport)
+# elif defined(QT_QTSINGLEAPPLICATION_EXPORT)
+# undef QT_QTSINGLEAPPLICATION_EXPORT
+# define QT_QTSINGLEAPPLICATION_EXPORT __declspec(dllexport)
+# endif
+#else
+# define QT_QTSINGLEAPPLICATION_EXPORT
+#endif
+
+class QT_QTSINGLEAPPLICATION_EXPORT QtSingleApplication : public QApplication
+{
+ Q_OBJECT
+
+public:
+ QtSingleApplication(int &argc, char **argv, bool GUIenabled = true);
+ QtSingleApplication(const QString &id, int &argc, char **argv);
+ QtSingleApplication(int &argc, char **argv, Type type);
+#if defined(Q_WS_X11)
+ QtSingleApplication(Display* dpy, Qt::HANDLE visual = 0, Qt::HANDLE colormap = 0);
+ QtSingleApplication(Display *dpy, int &argc, char **argv, Qt::HANDLE visual = 0, Qt::HANDLE cmap= 0);
+ QtSingleApplication(Display* dpy, const QString &appId, int argc, char **argv, Qt::HANDLE visual = 0, Qt::HANDLE colormap = 0);
+#endif
+
+ bool isRunning();
+ QString id() const;
+
+ void setActivationWindow(QWidget* aw, bool activateOnMessage = true);
+ QWidget* activationWindow() const;
+
+ // Obsolete:
+ void initialize(bool dummy = true)
+ { isRunning(); Q_UNUSED(dummy) }
+
+public Q_SLOTS:
+ bool sendMessage(const QString &message, int timeout = 5000);
+ void activateWindow();
+
+
+Q_SIGNALS:
+ void messageReceived(const QString &message);
+
+
+private:
+ void sysInit(const QString &appId = QString());
+ QtLocalPeer *peer;
+ QWidget *actWin;
+};
--- /dev/null
+include(../common.pri)
+INCLUDEPATH += $$PWD
+DEPENDPATH += $$PWD
+QT *= network
+
+qtsingleapplication-uselib:!qtsingleapplication-buildlib {
+ LIBS += -L$$QTSINGLEAPPLICATION_LIBDIR -l$$QTSINGLEAPPLICATION_LIBNAME
+} else {
+ SOURCES += $$PWD/qtsingleapplication.cpp $$PWD/qtlocalpeer.cpp
+ HEADERS += $$PWD/qtsingleapplication.h $$PWD/qtlocalpeer.h
+}
+
+win32 {
+ contains(TEMPLATE, lib):contains(CONFIG, shared):DEFINES += QT_QTSINGLEAPPLICATION_EXPORT
+ else:qtsingleapplication-uselib:DEFINES += QT_QTSINGLEAPPLICATION_IMPORT
+}
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include "qtsinglecoreapplication.h"
+#include "qtlocalpeer.h"
+
+/*!
+ \class QtSingleCoreApplication qtsinglecoreapplication.h
+ \brief A variant of the QtSingleApplication class for non-GUI applications.
+
+ This class is a variant of QtSingleApplication suited for use in
+ console (non-GUI) applications. It is an extension of
+ QCoreApplication (instead of QApplication). It does not require
+ the QtGui library.
+
+ The API and usage is identical to QtSingleApplication, except that
+ functions relating to the "activation window" are not present, for
+ obvious reasons. Please refer to the QtSingleApplication
+ documentation for explanation of the usage.
+
+ A QtSingleCoreApplication instance can communicate to a
+ QtSingleApplication instance if they share the same application
+ id. Hence, this class can be used to create a light-weight
+ command-line tool that sends commands to a GUI application.
+
+ \sa QtSingleApplication
+*/
+
+/*!
+ Creates a QtSingleCoreApplication object. The application identifier
+ will be QCoreApplication::applicationFilePath(). \a argc and \a
+ argv are passed on to the QCoreAppliation constructor.
+*/
+
+QtSingleCoreApplication::QtSingleCoreApplication(int &argc, char **argv)
+ : QCoreApplication(argc, argv)
+{
+ peer = new QtLocalPeer(this);
+ connect(peer, SIGNAL(messageReceived(const QString&)), SIGNAL(messageReceived(const QString&)));
+}
+
+
+/*!
+ Creates a QtSingleCoreApplication object with the application
+ identifier \a appId. \a argc and \a argv are passed on to the
+ QCoreAppliation constructor.
+*/
+QtSingleCoreApplication::QtSingleCoreApplication(const QString &appId, int &argc, char **argv)
+ : QCoreApplication(argc, argv)
+{
+ peer = new QtLocalPeer(this, appId);
+ connect(peer, SIGNAL(messageReceived(const QString&)), SIGNAL(messageReceived(const QString&)));
+}
+
+
+/*!
+ Returns true if another instance of this application is running;
+ otherwise false.
+
+ This function does not find instances of this application that are
+ being run by a different user (on Windows: that are running in
+ another session).
+
+ \sa sendMessage()
+*/
+
+bool QtSingleCoreApplication::isRunning()
+{
+ return peer->isClient();
+}
+
+
+/*!
+ Tries to send the text \a message to the currently running
+ instance. The QtSingleCoreApplication object in the running instance
+ will emit the messageReceived() signal when it receives the
+ message.
+
+ This function returns true if the message has been sent to, and
+ processed by, the current instance. If there is no instance
+ currently running, or if the running instance fails to process the
+ message within \a timeout milliseconds, this function return false.
+
+ \sa isRunning(), messageReceived()
+*/
+
+bool QtSingleCoreApplication::sendMessage(const QString &message, int timeout)
+{
+ return peer->sendMessage(message, timeout);
+}
+
+
+/*!
+ Returns the application identifier. Two processes with the same
+ identifier will be regarded as instances of the same application.
+*/
+
+QString QtSingleCoreApplication::id() const
+{
+ return peer->applicationId();
+}
+
+
+/*!
+ \fn void QtSingleCoreApplication::messageReceived(const QString& message)
+
+ This signal is emitted when the current instance receives a \a
+ message from another instance of this application.
+
+ \sa sendMessage()
+*/
--- /dev/null
+/****************************************************************************
+**
+** This file is part of a Qt Solutions component.
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Solutions Commercial License Agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** Please note Third Party Software included with Qt Solutions may impose
+** additional restrictions and it is the user's responsibility to ensure
+** that they have met the licensing requirements of the GPL, LGPL, or Qt
+** Solutions Commercial license and the relevant license of the Third
+** Party Software they are using.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+**
+****************************************************************************/
+
+
+#include <QtCore/QCoreApplication>
+
+class QtLocalPeer;
+
+class QtSingleCoreApplication : public QCoreApplication
+{
+ Q_OBJECT
+
+public:
+ QtSingleCoreApplication(int &argc, char **argv);
+ QtSingleCoreApplication(const QString &id, int &argc, char **argv);
+
+ bool isRunning();
+ QString id() const;
+
+public Q_SLOTS:
+ bool sendMessage(const QString &message, int timeout = 5000);
+
+
+Q_SIGNALS:
+ void messageReceived(const QString &message);
+
+
+private:
+ QtLocalPeer* peer;
+};
--- /dev/null
+INCLUDEPATH += $$PWD
+DEPENDPATH += $$PWD
+HEADERS += $$PWD/qtsinglecoreapplication.h $$PWD/qtlocalpeer.h
+SOURCES += $$PWD/qtsinglecoreapplication.cpp $$PWD/qtlocalpeer.cpp
+
+QT *= network
+
+win32:contains(TEMPLATE, lib):contains(CONFIG, shared) {
+ DEFINES += QT_QTSINGLECOREAPPLICATION_EXPORT=__declspec(dllexport)
+}
DEFINES += NO_ANIDBUDPCLIENT
}
+include(../lib/qtsingleapplication/src/qtsingleapplication.pri)
+
# Output Temporary files
OBJECTS_DIR = ../.tmp/obj
MOC_DIR = ../.tmp/moc
projects / aniplayer-old.git / commitdiff