src/corelib/kernel/qcoreapplication.cpp File Reference

#include "qcoreapplication.h"
#include "qcoreapplication_p.h"
#include "qabstracteventdispatcher.h"
#include "qcoreevent.h"
#include "qeventloop.h"
#include <qdatastream.h>
#include <qdatetime.h>
#include <qdebug.h>
#include <qdir.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <qhash.h>
#include <private/qprocess_p.h>
#include <qtextcodec.h>
#include <qthread.h>
#include <qthreadstorage.h>
#include <private/qthread_p.h>
#include <qlibraryinfo.h>
#include "qeventdispatcher_glib_p.h"
#include "qeventdispatcher_unix_p.h"
#include <stdlib.h>
#include <locale.h>

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Classes
struct	QCoreApplicationData
Typedefs
typedef QList< QtCleanUpFunction >	QVFuncList
Functions
void	qt_register_signal_spy_callbacks (const QSignalSpyCallbackSet &callback_set)
void Q_CORE_EXPORT	qt_startup_hook ()
void	qAddPostRoutine (QtCleanUpFunction p)
void	qRemovePostRoutine (QtCleanUpFunction p)
void Q_CORE_EXPORT	qt_call_post_routines ()
Q_CORE_EXPORT uint	qGlobalPostedEventsCount ()
void	qt_set_current_thread_to_main_thread ()
QString	qAppName ()
void	set_winapp_name ()
	Q_GLOBAL_STATIC_WITH_ARGS (QMutex, libraryPathMutex,(QMutex::Recursive)) QStringList QCoreApplication
Variables
QSignalSpyCallbackSet Q_CORE_EXPORT	qt_signal_spy_callback_set = { 0, 0, 0, 0 }
Qt::HANDLE	qt_application_thread_id = 0

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Typedef Documentation

typedef QList<QtCleanUpFunction> QVFuncList

Definition at line 97 of file qcoreapplication.cpp.

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Function Documentation

Q_GLOBAL_STATIC_WITH_ARGS	(	QMutex	,
		libraryPathMutex	,
		(QMutex::Recursive)
	)

Returns a list of paths that the application will search when dynamically loading libraries.

This list will include the installation directory for plugins if it exists (the default installation directory for plugins is INSTALL/plugins, where INSTALL is the directory where Qt was installed). The directory of the application executable (NOT the working directory) is always added, as well as the colon separated entries of the QT_PLUGIN_PATH environment variable.

If you want to iterate over the list, you can use the foreach pseudo-keyword:

        foreach (QString path, app.libraryPaths())
            do_something(path);

See also:

setLibraryPaths(), addLibraryPath(), removeLibraryPath(), QLibrary, {How to Create Qt Plugins}

Definition at line 1700 of file qcoreapplication.cpp.

References QList< T >::append(), QList< QString >::const_iterator, QList< T >::constBegin(), QList< T >::constEnd(), QFile::exists(), QString::fromLatin1(), QByteArray::isEmpty(), QLibraryInfo::location(), QLibraryInfo::PluginsPath, qgetenv(), QString::SkipEmptyParts, and QString::split().

                  :

    \code
        foreach (QString path, app.libraryPaths())
            do_something(path);
    \endcode

    \sa setLibraryPaths(), addLibraryPath(), removeLibraryPath(), QLibrary,
        {How to Create Qt Plugins}
*/
QStringList QCoreApplication::libraryPaths()
{
    QMutexLocker locker(libraryPathMutex());
    if (!self)
        return QStringList();
    if (!coreappdata()->app_libpaths) {
        QStringList *app_libpaths = coreappdata()->app_libpaths = new QStringList;
        QString installPathPlugins =  QLibraryInfo::location(QLibraryInfo::PluginsPath);
        if (QFile::exists(installPathPlugins)) {
            // Make sure we convert from backslashes to slashes.
            installPathPlugins = QDir(installPathPlugins).canonicalPath();
            app_libpaths->append(installPathPlugins);
        }

        // If QCoreApplication is not yet instantiated,
        // make sure we add the application path when we construct the QCoreApplication
        if (self) self->d_func()->appendApplicationPathToLibraryPaths();

        const QByteArray libPathEnv = qgetenv("QT_PLUGIN_PATH");
        if (!libPathEnv.isEmpty()) {
#ifdef Q_OS_WIN
            QLatin1Char pathSep(';');
#else
            QLatin1Char pathSep(':');
#endif
            QStringList paths = QString::fromLatin1(libPathEnv).split(pathSep, QString::SkipEmptyParts);
            for (QStringList::const_iterator it = paths.constBegin(); it != paths.constEnd(); ++it) {
                app_libpaths->append(QDir(*it).canonicalPath());
            }
        }
    }
    return *(coreappdata()->app_libpaths);
}

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void qAddPostRoutine

(

QtCleanUpFunction

p

)

[related]

Definition at line 100 of file qcoreapplication.cpp.

References QList< T >::prepend().

Referenced by QSqlDatabasePrivate::driverDict(), QTestAccessibility::initialize(), QAccessible::installFactory(), Q3DnsManager::manager(), Q3ProcessPrivate::newProc(), QGLCMapCleanupHandler::QGLCMapCleanupHandler(), QLibrarySettings::QLibrarySettings(), QErrorMessage::qtHandler(), Q3Process::start(), and QX11Data::xdndSetup().

{
    QVFuncList *list = postRList();
    if (!list)
        return;
    list->prepend(p);
}

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QString qAppName

(

)

Definition at line 306 of file qcoreapplication.cpp.

References QCoreApplicationPrivate::checkInstance(), and QCoreApplication::instance().

Referenced by QWidgetPrivate::create_sys(), and sm_performSaveYourself().

{
    if (!QCoreApplicationPrivate::checkInstance("qAppName"))
        return QString();
    return QCoreApplication::instance()->d_func()->appName();
}

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Q_CORE_EXPORT uint qGlobalPostedEventsCount

(

)

Definition at line 132 of file qcoreapplication.cpp.

References QThreadData::current(), QThreadData::postEventList, and QList< T >::size().

Referenced by QEventDispatcherX11::hasPendingEvents(), and QEventDispatcherUNIX::hasPendingEvents().

{
    return QThreadData::current()->postEventList.size();
}

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void qRemovePostRoutine

(

QtCleanUpFunction

p

)

Definition at line 108 of file qcoreapplication.cpp.

References QList< T >::removeAll().

Referenced by Q3ProcessManager::removeMe(), and QGLCMapCleanupHandler::~QGLCMapCleanupHandler().

{
    QVFuncList *list = postRList();
    if (!list)
        return;
    list->removeAll(p);
}

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void Q_CORE_EXPORT qt_call_post_routines

(

)

Definition at line 116 of file qcoreapplication.cpp.

References QList< T >::isEmpty(), and QList< T >::takeFirst().

Referenced by QApplication::~QApplication(), and QCoreApplication::~QCoreApplication().

{
    QVFuncList *list = postRList();
    if (!list)
        return;
    while (!list->isEmpty())
        (list->takeFirst())();
}

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void qt_register_signal_spy_callbacks

(

const QSignalSpyCallbackSet &

callback_set

)

Definition at line 88 of file qcoreapplication.cpp.

References qt_signal_spy_callback_set.

Referenced by QSignalDumper::endDump(), and QSignalDumper::startDump().

{
    qt_signal_spy_callback_set = callback_set;
}

void qt_set_current_thread_to_main_thread

(

)

Definition at line 138 of file qcoreapplication.cpp.

References QThread::currentThread(), and QCoreApplicationPrivate::theMainThread.

Referenced by QInternal::callFunction().

{
    QCoreApplicationPrivate::theMainThread = QThread::currentThread();
}

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void Q_CORE_EXPORT qt_startup_hook

(

)

Definition at line 93 of file qcoreapplication.cpp.

Referenced by QCoreApplication::init().

{
}

void set_winapp_name

(

)

Referenced by QCoreApplication::init().

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Variable Documentation

Qt::HANDLE qt_application_thread_id = 0

Definition at line 150 of file qcoreapplication.cpp.

Referenced by QCoreApplicationPrivate::QCoreApplicationPrivate(), and QEventDispatcherUNIXPrivate::QEventDispatcherUNIXPrivate().

QSignalSpyCallbackSet Q_CORE_EXPORT qt_signal_spy_callback_set = { 0, 0, 0, 0 }

Definition at line 86 of file qcoreapplication.cpp.

Referenced by QMetaObject::activate(), and qt_register_signal_spy_callbacks().

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