diff --git a/CMakeLists.txt b/CMakeLists.txt index c333bc9a..c2065882 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -120,8 +120,6 @@ set(QSINGLEAPP_SOURCE_FILES thirdparty/qtsingleapplication/src/qtlocalpeer.h thirdparty/qtsingleapplication/src/qtsingleapplication.cpp thirdparty/qtsingleapplication/src/qtsingleapplication.h - thirdparty/qtsingleapplication/src/qtsinglecoreapplication.cpp - thirdparty/qtsingleapplication/src/qtsinglecoreapplication.h ) qt_add_executable(${CMAKE_PROJECT_NAME} @@ -248,7 +246,7 @@ set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION} MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR} MACOSX_BUNDLE TRUE - WIN32_EXECUTABLE TRUE + # WIN32_EXECUTABLE TRUE # TODO: this will prevent any qDebug() from showing up. ) install(TARGETS ${CMAKE_PROJECT_NAME} diff --git a/thirdparty/qtsingleapplication/src/QtLockedFile b/thirdparty/qtsingleapplication/src/QtLockedFile deleted file mode 100644 index 16b48ba9..00000000 --- a/thirdparty/qtsingleapplication/src/QtLockedFile +++ /dev/null @@ -1 +0,0 @@ -#include "qtlockedfile.h" diff --git a/thirdparty/qtsingleapplication/src/qtlocalpeer.cpp b/thirdparty/qtsingleapplication/src/qtlocalpeer.cpp index ef075dc0..8fa9ad1a 100644 --- a/thirdparty/qtsingleapplication/src/qtlocalpeer.cpp +++ b/thirdparty/qtsingleapplication/src/qtlocalpeer.cpp @@ -41,7 +41,6 @@ #include "qtlocalpeer.h" #include -#include #include #if defined(Q_OS_WIN) @@ -51,21 +50,12 @@ typedef BOOL(WINAPI*PProcessIdToSessionId)(DWORD,DWORD*); static PProcessIdToSessionId pProcessIdToSessionId = 0; #endif #if defined(Q_OS_UNIX) -#include -#include +#include #include #endif #include -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"; @@ -105,18 +95,21 @@ QtLocalPeer::QtLocalPeer(QObject* parent, const QString &appId) server = new QLocalServer(this); QString lockName = QDir(QDir::tempPath()).absolutePath() + QLatin1Char('/') + socketName - + QLatin1String("-lockfile"); - lockFile.setFileName(lockName); - lockFile.open(QIODevice::ReadWrite); + + QLatin1String("-gdlockfile"); + lockFile = new QLockFile(lockName); + lockFile->setStaleLockTime(0); + if ( !lockFile->tryLock( 0 ) ) { + if ( lockFile->error() != QLockFile::NoError && lockFile->error() != QLockFile::LockFailedError ) { + qWarning() << "QLockFile error: " << lockFile->error(); + } + } } bool QtLocalPeer::isClient() { - if (lockFile.isLocked()) - return false; - - if (!lockFile.lock(QtLP_Private::QtLockedFile::WriteLock, false)) + if ( !lockFile->isLocked() ) { return true; + } bool res = server->listen(socketName); #if defined(Q_OS_UNIX) && (QT_VERSION >= QT_VERSION_CHECK(4,5,0)) @@ -199,3 +192,7 @@ void QtLocalPeer::receiveConnection() delete socket; emit messageReceived(message); //### (might take a long time to return) } + +QtLocalPeer::~QtLocalPeer() { + lockFile->unlock(); // Ensure file unlocked +} diff --git a/thirdparty/qtsingleapplication/src/qtlocalpeer.h b/thirdparty/qtsingleapplication/src/qtlocalpeer.h index 1b533b1a..790e62c2 100644 --- a/thirdparty/qtsingleapplication/src/qtlocalpeer.h +++ b/thirdparty/qtsingleapplication/src/qtlocalpeer.h @@ -41,37 +41,40 @@ #ifndef QTLOCALPEER_H #define QTLOCALPEER_H +#include #include #include #include -#include "qtlockedfile.h" -class QtLocalPeer : public QObject +class QtLocalPeer: public QObject { - Q_OBJECT + 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; } + explicit QtLocalPeer( QObject * parent = nullptr, const QString & appId = QString() ); + ~QtLocalPeer(); -Q_SIGNALS: - void messageReceived(const QString &message); + bool isClient(); + bool sendMessage( const QString & message, int timeout ); + QString applicationId() const + { + return id; + } -protected Q_SLOTS: - void receiveConnection(); +signals: + void messageReceived( const QString & message ); -protected: - QString id; - QString socketName; - QLocalServer* server; - QtLP_Private::QtLockedFile lockFile; +protected slots: + void receiveConnection(); private: - static const char* ack; + QString id; + QString socketName; + QLocalServer * server; + QLockFile * lockFile; + + static const char * ack; }; #endif // QTLOCALPEER_H diff --git a/thirdparty/qtsingleapplication/src/qtlockedfile.cpp b/thirdparty/qtsingleapplication/src/qtlockedfile.cpp deleted file mode 100644 index 4cebf55e..00000000 --- a/thirdparty/qtsingleapplication/src/qtlockedfile.cpp +++ /dev/null @@ -1,197 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the Qt Solutions component. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 Digia Plc 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtlockedfile.h" - -#ifdef CMAKE_USED_HACK -using namespace QtLP_Private; -#endif - -/*! - \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/thirdparty/qtsingleapplication/src/qtlockedfile.h b/thirdparty/qtsingleapplication/src/qtlockedfile.h deleted file mode 100644 index 84c18e5c..00000000 --- a/thirdparty/qtsingleapplication/src/qtlockedfile.h +++ /dev/null @@ -1,97 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the Qt Solutions component. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 Digia Plc 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QTLOCKEDFILE_H -#define QTLOCKEDFILE_H - -#include -#ifdef Q_OS_WIN -#include -#endif - -#if 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/thirdparty/qtsingleapplication/src/qtlockedfile_unix.cpp b/thirdparty/qtsingleapplication/src/qtlockedfile_unix.cpp deleted file mode 100644 index 21947062..00000000 --- a/thirdparty/qtsingleapplication/src/qtlockedfile_unix.cpp +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the Qt Solutions component. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 Digia Plc 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include -#include -#include -#include - -#include "qtlockedfile.h" - -#ifdef CMAKE_USED_HACK -using namespace QtLP_Private; -#endif - -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/thirdparty/qtsingleapplication/src/qtlockedfile_win.cpp b/thirdparty/qtsingleapplication/src/qtlockedfile_win.cpp deleted file mode 100644 index 5e212620..00000000 --- a/thirdparty/qtsingleapplication/src/qtlockedfile_win.cpp +++ /dev/null @@ -1,211 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the Qt Solutions component. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 Digia Plc 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#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 - -#if QT_VERSION >= 0x050000 -#define QT_WA(unicode, ansi) unicode -#endif - -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); -} diff --git a/thirdparty/qtsingleapplication/src/qtsingleapplication.pri b/thirdparty/qtsingleapplication/src/qtsingleapplication.pri index d08a6521..86331603 100644 --- a/thirdparty/qtsingleapplication/src/qtsingleapplication.pri +++ b/thirdparty/qtsingleapplication/src/qtsingleapplication.pri @@ -1,5 +1,5 @@ QT += core network widgets -CONFIG += c++11 +CONFIG += c++17 INCLUDEPATH += $$PWD DEPENDPATH += $$PWD