diff --git a/3rdparty/qtsingleapplication/CMakeLists.txt b/3rdparty/qtsingleapplication/CMakeLists.txt new file mode 100644 index 000000000..975881adb --- /dev/null +++ b/3rdparty/qtsingleapplication/CMakeLists.txt @@ -0,0 +1,28 @@ +cmake_minimum_required(VERSION 2.6) + +set(SINGLEAPP-SOURCES + qtlocalpeer.cpp + qtsingleapplication.cpp + qtsinglecoreapplication.cpp +) + +set(SINGLEAPP-MOC-HEADERS + qtlocalpeer.h + qtsingleapplication.h + qtsinglecoreapplication.h +) + +if(WIN32) + set(SINGLEAPP-SOURCES ${SINGLEAPP-SOURCES} qtlockedfile_win.cpp) +elseif(WIN32) + set(SINGLEAPP-SOURCES ${SINGLEAPP-SOURCES} qtlockedfile_unix.cpp) +endif(WIN32) + +QT5_WRAP_CPP(SINGLEAPP-SOURCES-MOC ${SINGLEAPP-MOC-HEADERS}) + +ADD_LIBRARY(qtsingleapplication STATIC + ${SINGLEAPP-SOURCES} + ${SINGLEAPP-SOURCES-MOC} +) + +QT5_USE_MODULES(qtsingleapplication Core Widgets Network) diff --git a/3rdparty/qtsingleapplication/LICENSE.LGPL b/3rdparty/qtsingleapplication/LICENSE.LGPL new file mode 100644 index 000000000..5ab7695ab --- /dev/null +++ b/3rdparty/qtsingleapplication/LICENSE.LGPL @@ -0,0 +1,504 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + + +#include "qtlocalpeer.h" +#include +#include +#include + +#if defined(Q_OS_WIN) +#include +#include +typedef BOOL(WINAPI*PProcessIdToSessionId)(DWORD,DWORD*); +static PProcessIdToSessionId pProcessIdToSessionId = 0; +#endif +#if defined(Q_OS_UNIX) +#include +#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); + if (res) { + res &= socket.waitForReadyRead(timeout); // wait for ack + if (res) + 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 %s", socket->errorString().toLatin1().constData()); + 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) +} diff --git a/3rdparty/qtsingleapplication/qtlocalpeer.h b/3rdparty/qtsingleapplication/qtlocalpeer.h new file mode 100644 index 000000000..7b3fa8159 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtlocalpeer.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#ifndef QTLOCALPEER_H +#define QTLOCALPEER_H + +#include +#include +#include + +#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; +}; + +#endif // QTLOCALPEER_H diff --git a/3rdparty/qtsingleapplication/qtlockedfile.cpp b/3rdparty/qtsingleapplication/qtlockedfile.cpp new file mode 100644 index 000000000..3e73ba652 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtlockedfile.cpp @@ -0,0 +1,192 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#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. +*/ diff --git a/3rdparty/qtsingleapplication/qtlockedfile.h b/3rdparty/qtsingleapplication/qtlockedfile.h new file mode 100644 index 000000000..2af3e3ea2 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtlockedfile.h @@ -0,0 +1,96 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#ifndef QTLOCKEDFILE_H +#define QTLOCKEDFILE_H + +#include +#ifdef Q_OS_WIN +#include +#endif + +#if defined(Q_WS_WIN) || defined(Q_OS_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 + +namespace QtLP_Private { + +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 rmutexes; + QString mutexname; + + Qt::HANDLE getMutexHandle(int idx, bool doCreate); + bool waitMutex(Qt::HANDLE mutex, bool doBlock); + +#endif + LockMode m_lock_mode; +}; +} +#endif diff --git a/3rdparty/qtsingleapplication/qtlockedfile_unix.cpp b/3rdparty/qtsingleapplication/qtlockedfile_unix.cpp new file mode 100644 index 000000000..715c7d9b1 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtlockedfile_unix.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#include +#include +#include +#include + +#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(); +} + diff --git a/3rdparty/qtsingleapplication/qtlockedfile_win.cpp b/3rdparty/qtsingleapplication/qtlockedfile_win.cpp new file mode 100644 index 000000000..ed2995f3f --- /dev/null +++ b/3rdparty/qtsingleapplication/qtlockedfile_win.cpp @@ -0,0 +1,214 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#include "qtlockedfile.h" +#include +#include + +#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) { +#if (QT_VERSION < 0x050000) + QT_WA( { mutex = CreateMutexW(NULL, FALSE, (TCHAR*)mname.utf16()); }, + { mutex = CreateMutexA(NULL, FALSE, mname.toLocal8Bit().constData()); } ); +#else + mutex = CreateMutexW(NULL, FALSE, (TCHAR*)mname.utf16()); +#endif + if (!mutex) { + qErrnoWarning("QtLockedFile::lock(): CreateMutex failed"); + return 0; + } + } + else { +#if (QT_VERSION < 0x050000) + QT_WA( { mutex = OpenMutexW(SYNCHRONIZE | MUTEX_MODIFY_STATE, FALSE, (TCHAR*)mname.utf16()); }, + { mutex = OpenMutexA(SYNCHRONIZE | MUTEX_MODIFY_STATE, FALSE, mname.toLocal8Bit().constData()); } ); +#else + mutex = OpenMutexW(SYNCHRONIZE | MUTEX_MODIFY_STATE, FALSE, (TCHAR*)mname.utf16()); +#endif + 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); +} diff --git a/3rdparty/qtsingleapplication/qtsingleapplication.cpp b/3rdparty/qtsingleapplication/qtsingleapplication.cpp new file mode 100644 index 000000000..48c2e45f2 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtsingleapplication.cpp @@ -0,0 +1,331 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + + +#include "qtsingleapplication.h" +#include "qtlocalpeer.h" +#include + +/*! + \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() to find out if another + instance of this application is already running. If isRunning() + returns false, it means that no other instance is running, and + this instance has assumed the role as the running instance. In + this case, 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 running + application receives messages from another instance of the same + application. When 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. + + If isRunning() returns true, another instance is already + running. It may be alerted to the fact that another instance has + started by using the sendMessage() function. Also data such as + startup parameters (e.g. the name of the file the user wanted this + new instance to open) can be passed to the running instance with + this function. Then, the application should terminate (or enter + client mode). + + If isRunning() returns true, but sendMessage() fails, that is an + indication that the running instance is frozen. + + 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 !app.sendMessage(someDataString); + + MyMainWidget mmw; + app.setActivationWindow(&mmw); + mmw.show(); + return app.exec(); + } + \endcode + + Once this QtSingleApplication instance is destroyed (normally when + the process exits or crashes), 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); +} + + +#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 +*/ diff --git a/3rdparty/qtsingleapplication/qtsingleapplication.h b/3rdparty/qtsingleapplication/qtsingleapplication.h new file mode 100644 index 000000000..42e977281 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtsingleapplication.h @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#ifndef QTSINGLEAPPLICATION_H +#define QTSINGLEAPPLICATION_H + +#include + +class QtLocalPeer; + +#if defined(Q_WS_WIN) || defined(Q_OS_WIN32) +# 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); +#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; +}; + +#endif // QTSINGLEAPPLICATION_H diff --git a/3rdparty/qtsingleapplication/qtsinglecoreapplication.cpp b/3rdparty/qtsingleapplication/qtsinglecoreapplication.cpp new file mode 100644 index 000000000..cf607710e --- /dev/null +++ b/3rdparty/qtsingleapplication/qtsinglecoreapplication.cpp @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + + +#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() +*/ diff --git a/3rdparty/qtsingleapplication/qtsinglecoreapplication.h b/3rdparty/qtsingleapplication/qtsinglecoreapplication.h new file mode 100644 index 000000000..549d49f53 --- /dev/null +++ b/3rdparty/qtsingleapplication/qtsinglecoreapplication.h @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of a Qt Solutions component. +** +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +****************************************************************************/ + +#ifndef QTSINGLECOREAPPLICATION_H +#define QTSINGLECOREAPPLICATION_H + +#include + +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; +}; + +#endif // QTSINGLECOREAPPLICATION_H diff --git a/3rdparty/singleapplication/CMakeLists.txt b/3rdparty/singleapplication/CMakeLists.txt deleted file mode 100644 index f4711c0f5..000000000 --- a/3rdparty/singleapplication/CMakeLists.txt +++ /dev/null @@ -1,20 +0,0 @@ -cmake_minimum_required(VERSION 2.6) - -set(SINGLEAPP-SOURCES - singleapplication.cpp - singlecoreapplication.cpp -) - -set(SINGLEAPP-MOC-HEADERS - singleapplication.h - singlecoreapplication.h -) - -QT5_WRAP_CPP(SINGLEAPP-SOURCES-MOC ${SINGLEAPP-MOC-HEADERS}) - -ADD_LIBRARY(singleapplication STATIC - ${SINGLEAPP-SOURCES} - ${SINGLEAPP-SOURCES-MOC} -) - -QT5_USE_MODULES(singleapplication Core Network Widgets) diff --git a/3rdparty/singleapplication/LICENSE b/3rdparty/singleapplication/LICENSE deleted file mode 100644 index 5c0006b9a..000000000 --- a/3rdparty/singleapplication/LICENSE +++ /dev/null @@ -1,21 +0,0 @@ -The MIT License (MIT) - -Copyright (c) 2015 Itay Grudev - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. diff --git a/3rdparty/singleapplication/singleapplication.cpp b/3rdparty/singleapplication/singleapplication.cpp deleted file mode 100644 index 9f71a62cb..000000000 --- a/3rdparty/singleapplication/singleapplication.cpp +++ /dev/null @@ -1,48 +0,0 @@ -#include "singleapplication.h" -#include - -/** - * @brief Constructor. Checks and fires up LocalServer or closes the program - * if another instance already exists - * @param argc - * @param argv - */ -SingleApplication::SingleApplication(int &argc, char **argv) - : QApplication(argc, argv) -{ - QString serverName = QApplication::organizationName() + QApplication::applicationName(); - serverName.replace(QRegExp("[^\\w\\-. ]"), ""); - - // Attempt to connect to the LocalServer - socket = new QLocalSocket(); - socket->connectToServer(serverName); - if(socket->waitForConnected(1000)){ - socket->close(); - ::exit(EXIT_SUCCESS); // Terminate the program using STDLib's exit function - } else { - // If the connection is insuccessful, this is the main process - // So we create a Local Server - server = new QLocalServer(); - server->removeServer(serverName); - server->listen(serverName); - QObject::connect(server, SIGNAL(newConnection()), this, SLOT(slotConnectionEstablished())); - } -} - -/** - * @brief Destructor - */ -SingleApplication::~SingleApplication() -{ - server->close(); -} - -/** - * @brief Executed when the showUp command is sent to LocalServer - */ -void SingleApplication::slotConnectionEstablished() -{ - server->nextPendingConnection(); - emit showUp(); -} - diff --git a/3rdparty/singleapplication/singleapplication.h b/3rdparty/singleapplication/singleapplication.h deleted file mode 100644 index 3550eace0..000000000 --- a/3rdparty/singleapplication/singleapplication.h +++ /dev/null @@ -1,32 +0,0 @@ -#ifndef SINGLE_APPLICATION_H -#define SINGLE_APPLICATION_H - -#include -#include -#include - -/** - * @brief The SingleApplication class handles multipe instances of the same Application - * @see QApplication - */ -class SingleApplication : public QApplication -{ - Q_OBJECT -public: - explicit SingleApplication(int &, char **); - ~SingleApplication(); - -signals: - void showUp(); - -private slots: - void slotConnectionEstablished(); - -private: - QLocalSocket *socket; - QLocalServer *server; - -}; - -#endif // SINGLE_APPLICATION_H - diff --git a/3rdparty/singleapplication/singlecoreapplication.cpp b/3rdparty/singleapplication/singlecoreapplication.cpp deleted file mode 100644 index 587b3fa53..000000000 --- a/3rdparty/singleapplication/singlecoreapplication.cpp +++ /dev/null @@ -1,48 +0,0 @@ -#include "singlecoreapplication.h" -#include - -/** - * @brief Constructor. Checks and fires up LocalServer or closes the program - * if another instance already exists - * @param argc - * @param argv - */ -SingleCoreApplication::SingleCoreApplication(int &argc, char **argv) - : QCoreApplication(argc, argv) -{ - QString serverName = QCoreApplication::organizationName() + QCoreApplication::applicationName(); - serverName.replace(QRegExp("[^\\w\\-. ]"), ""); - - // Attempt to connect to the LocalServer - socket = new QLocalSocket(); - socket->connectToServer(serverName); - if(socket->waitForConnected(1000)){ - socket->close(); - ::exit(EXIT_SUCCESS); // Terminate the program using STDLib's exit function - } else { - // If the connection is insuccessful, this is the main process - // So we create a Local Server - server = new QLocalServer(); - server->removeServer(serverName); - server->listen(serverName); - QObject::connect(server, SIGNAL(newConnection()), this, SLOT(slotConnectionEstablished())); - } -} - -/** - * @brief Destructor - */ -SingleCoreApplication::~SingleCoreApplication() -{ - server->close(); -} - -/** - * @brief Executed when the showUp command is sent to LocalServer - */ -void SingleCoreApplication::slotConnectionEstablished() -{ - server->nextPendingConnection(); - emit showUp(); -} - diff --git a/3rdparty/singleapplication/singlecoreapplication.h b/3rdparty/singleapplication/singlecoreapplication.h deleted file mode 100644 index b3a404d03..000000000 --- a/3rdparty/singleapplication/singlecoreapplication.h +++ /dev/null @@ -1,32 +0,0 @@ -#ifndef SINGLE_CORE_APPLICATION_H -#define SINGLE_CORE_APPLICATION_H - -#include -#include -#include - -/** - * @brief The SingleCoreApplication class handles multipe instances of the same Application - * @see QApplication - */ -class SingleCoreApplication : public QCoreApplication -{ - Q_OBJECT -public: - explicit SingleCoreApplication(int &, char **); - ~SingleCoreApplication(); - -signals: - void showUp(); - -private slots: - void slotConnectionEstablished(); - -private: - QLocalSocket *socket; - QLocalServer *server; - -}; - -#endif // SINGLE_CORE_APPLICATION_H - diff --git a/CMakeLists.txt b/CMakeLists.txt index c108b2974..9c2323507 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -322,9 +322,18 @@ endif(ENABLE_VISUALISATIONS) add_subdirectory(3rdparty/qsqlite) include_directories("3rdparty/qsqlite") -add_subdirectory(3rdparty/singleapplication) -set(SINGLEAPPLICATION_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/singleapplication) -set(SINGLEAPPLICATION_LIBRARIES singleapplication) +# When/if upstream accepts our patches then these options can be used to link +# to system installed qtsingleapplication instead. +option(USE_SYSTEM_QTSINGLEAPPLICATION "Don't set this option unless your system QtSingleApplication library has been compiled with the Clementine patches in 3rdparty" OFF) +if(USE_SYSTEM_QTSINGLEAPPLICATION) + find_path(QTSINGLEAPPLICATION_INCLUDE_DIRS qtsingleapplication.h PATH_SUFFIXES QtSolutions) + find_library(QTSINGLEAPPLICATION_LIBRARIES QtSolutions_SingleApplication-2.6) + find_library(QTSINGLECOREAPPLICATION_LIBRARIES QtSolutions_SingleCoreApplication-2.6) +else(USE_SYSTEM_QTSINGLEAPPLICATION) + add_subdirectory(3rdparty/qtsingleapplication) + set(QTSINGLEAPPLICATION_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/qtsingleapplication) + set(QTSINGLEAPPLICATION_LIBRARIES qtsingleapplication) +endif(USE_SYSTEM_QTSINGLEAPPLICATION) # QtIoCompressor isn't patched, so we can use a system version if it's # available diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 9d193c850..86b4940e4 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -32,7 +32,7 @@ include_directories(${GLIB_INCLUDE_DIRS}) include_directories(${LIBXML_INCLUDE_DIRS}) include_directories(${GOBJECT_INCLUDE_DIRS}) include_directories(${LIBPROJECTM_INCLUDE_DIRS}) -include_directories(${SINGLEAPPLICATION_INCLUDE_DIRS}) +include_directories(${QTSINGLEAPPLICATION_INCLUDE_DIRS}) include_directories(${QTIOCOMPRESSOR_INCLUDE_DIRS}) include_directories(${QXT_INCLUDE_DIRS}) include_directories(${ECHONEST5_INCLUDE_DIRS}) @@ -1240,8 +1240,7 @@ target_link_libraries(clementine_lib ${GSTREAMER_LIBRARIES} ${GSTREAMER_APP_LIBRARIES} ${GSTREAMER_TAG_LIBRARIES} - ${SINGLEAPPLICATION_LIBRARIES} - ${QTSINGLECOREAPPLICATION_LIBRARIES} + ${QTSINGLEAPPLICATION_LIBRARIES} ${QTIOCOMPRESSOR_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${SQLITE_LIBRARIES} @@ -1349,7 +1348,7 @@ if (UNIX AND NOT APPLE) endif () endif () -add_dependencies(clementine_lib singleapplication) +add_dependencies(clementine_lib qtsingleapplication) ############################################################################### diff --git a/src/main.cpp b/src/main.cpp index 4a90b0951..2c3fb1c3e 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -69,8 +69,8 @@ #include "tagreadermessages.pb.h" -#include "singleapplication.h" -#include "singlecoreapplication.h" +#include "qtsingleapplication.h" +#include "qtsinglecoreapplication.h" #include #include @@ -288,7 +288,7 @@ int main(int argc, char* argv[]) { // Clementine running without needing an X server. // This MUST be done before parsing the commandline options so QTextCodec // gets the right system locale for filenames. - SingleCoreApplication a(argc, argv); + QtSingleCoreApplication a(argc, argv); CheckPortable(); crash_reporting.SetApplicationPath(a.applicationFilePath()); @@ -297,6 +297,16 @@ int main(int argc, char* argv[]) { if (!options.Parse()) return 1; logging::SetLevels(options.log_levels()); + if (a.isRunning()) { + if (options.is_empty()) { + qLog(Info) + << "Clementine is already running - activating existing window"; + } + if (a.sendMessage(options.Serialize(), 5000)) { + return 0; + } + // Couldn't send the message so start anyway + } } #ifdef Q_OS_DARWIN @@ -324,7 +334,7 @@ int main(int argc, char* argv[]) { IncreaseFDLimit(); - SingleApplication a(argc, argv); + QtSingleApplication a(argc, argv); // A bug in Qt means the wheel_scroll_lines setting gets ignored and replaced // with the default value of 3 in QApplicationPrivate::initialize. @@ -342,6 +352,10 @@ int main(int argc, char* argv[]) { #endif a.setQuitOnLastWindowClosed(false); + // Do this check again because another instance might have started by now + if (a.isRunning() && a.sendMessage(options.Serialize(), 5000)) { + return 0; + } #ifndef Q_OS_DARWIN // Gnome on Ubuntu has menu icons disabled by default. I think that's a bad @@ -466,8 +480,10 @@ int main(int argc, char* argv[]) { #ifdef HAVE_DBUS QObject::connect(&mpris, SIGNAL(RaiseMainWindow()), &w, SLOT(Raise())); #endif - + QObject::connect(&a, SIGNAL(messageReceived(QString)), &w, + SLOT(CommandlineOptionsReceived(QString))); w.CommandlineOptionsReceived(options); + int ret = a.exec(); #ifdef Q_OS_LINUX diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp index cba1d91d9..626134219 100644 --- a/src/ui/mainwindow.cpp +++ b/src/ui/mainwindow.cpp @@ -1943,14 +1943,14 @@ void MainWindow::PlaylistEditFinished(const QModelIndex& index) { } void MainWindow::CommandlineOptionsReceived( - const QByteArray& serialized_options) { + const QString& serialized_options) { if (serialized_options == "wake up!") { // Old versions of Clementine sent this - just ignore it return; } CommandlineOptions options; - options.Load(serialized_options); + options.Load(serialized_options.toLatin1()); if (options.is_empty()) { show(); diff --git a/src/ui/mainwindow.h b/src/ui/mainwindow.h index 71e286259..50672ac26 100644 --- a/src/ui/mainwindow.h +++ b/src/ui/mainwindow.h @@ -222,7 +222,7 @@ signals: void AddCDTracks(); void AddPodcast(); - void CommandlineOptionsReceived(const QByteArray& serialized_options); + void CommandlineOptionsReceived(const QString &serialized_options); void CheckForUpdates();