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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtDBus module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <qcoreapplication.h>
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#include <qdebug.h>
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#include <qmetaobject.h>
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#include <qobject.h>
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#include <qsocketnotifier.h>
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#include <qstringlist.h>
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#include <qtimer.h>
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#include <qthread.h>
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#include "qdbusargument.h"
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#include "qdbusconnection_p.h"
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#include "qdbusinterface_p.h"
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#include "qdbusmessage.h"
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#include "qdbusmetatype.h"
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#include "qdbusmetatype_p.h"
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#include "qdbusabstractadaptor.h"
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#include "qdbusabstractadaptor_p.h"
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#include "qdbusutil_p.h"
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#include "qdbusmessage_p.h"
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#include "qdbuscontext_p.h"
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#include "qdbuspendingcall_p.h"
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#include "qdbusintegrator_p.h"
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#include "qdbusthreaddebug_p.h"
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QT_BEGIN_NAMESPACE
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static bool isDebugging;
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#define qDBusDebug if (!::isDebugging); else qDebug
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static inline QDebug operator<<(QDebug dbg, const QThread *th)
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{
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dbg.nospace() << "QThread(ptr=" << (void*)th;
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if (th && !th->objectName().isEmpty())
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dbg.nospace() << ", name=" << th->objectName();
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dbg.nospace() << ')';
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return dbg.space();
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}
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#if QDBUS_THREAD_DEBUG
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static inline QDebug operator<<(QDebug dbg, const QDBusConnectionPrivate *conn)
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{
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dbg.nospace() << "QDBusConnection("
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<< "ptr=" << (void*)conn
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<< ", name=" << conn->name
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<< ", baseService=" << conn->baseService
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<< ", thread=";
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if (conn->thread() == QThread::currentThread())
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dbg.nospace() << "same thread";
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else
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dbg.nospace() << conn->thread();
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dbg.nospace() << ')';
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return dbg.space();
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}
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Q_AUTOTEST_EXPORT void qdbusDefaultThreadDebug(int action, int condition, QDBusConnectionPrivate *conn)
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{
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qDBusDebug() << QThread::currentThread()
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<< "QtDBus threading action" << action
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<< (condition == QDBusLockerBase::BeforeLock ? "before lock" :
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condition == QDBusLockerBase::AfterLock ? "after lock" :
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condition == QDBusLockerBase::BeforeUnlock ? "before unlock" :
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condition == QDBusLockerBase::AfterUnlock ? "after unlock" :
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condition == QDBusLockerBase::BeforePost ? "before event posting" :
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condition == QDBusLockerBase::AfterPost ? "after event posting" :
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condition == QDBusLockerBase::BeforeDeliver ? "before event delivery" :
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condition == QDBusLockerBase::AfterDeliver ? "after event delivery" :
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condition == QDBusLockerBase::BeforeAcquire ? "before acquire" :
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condition == QDBusLockerBase::AfterAcquire ? "after acquire" :
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condition == QDBusLockerBase::BeforeRelease ? "before release" :
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condition == QDBusLockerBase::AfterRelease ? "after release" :
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"condition unknown")
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<< "in connection" << conn;
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}
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Q_AUTOTEST_EXPORT qdbusThreadDebugFunc qdbusThreadDebug = 0;
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#endif
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typedef void (*QDBusSpyHook)(const QDBusMessage&);
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typedef QVarLengthArray<QDBusSpyHook, 4> QDBusSpyHookList;
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Q_GLOBAL_STATIC(QDBusSpyHookList, qDBusSpyHookList)
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extern "C" {
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// libdbus-1 callbacks
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static bool qDBusRealAddTimeout(QDBusConnectionPrivate *d, DBusTimeout *timeout, int ms);
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static dbus_bool_t qDBusAddTimeout(DBusTimeout *timeout, void *data)
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{
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Q_ASSERT(timeout);
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Q_ASSERT(data);
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// qDebug("addTimeout %d", q_dbus_timeout_get_interval(timeout));
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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if (!q_dbus_timeout_get_enabled(timeout))
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return true;
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QDBusWatchAndTimeoutLocker locker(AddTimeoutAction, d);
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if (QCoreApplication::instance() && QThread::currentThread() == d->thread()) {
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// correct thread
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return qDBusRealAddTimeout(d, timeout, q_dbus_timeout_get_interval(timeout));
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} else {
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// wrong thread: sync back
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QDBusConnectionCallbackEvent *ev = new QDBusConnectionCallbackEvent;
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ev->subtype = QDBusConnectionCallbackEvent::AddTimeout;
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d->timeoutsPendingAdd.append(qMakePair(timeout, q_dbus_timeout_get_interval(timeout)));
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d->postEventToThread(AddTimeoutAction, d, ev);
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return true;
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}
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}
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static bool qDBusRealAddTimeout(QDBusConnectionPrivate *d, DBusTimeout *timeout, int ms)
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{
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Q_ASSERT(d->timeouts.keys(timeout).isEmpty());
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int timerId = d->startTimer(ms);
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if (!timerId)
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return false;
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d->timeouts[timerId] = timeout;
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return true;
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}
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static void qDBusRemoveTimeout(DBusTimeout *timeout, void *data)
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{
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Q_ASSERT(timeout);
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Q_ASSERT(data);
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// qDebug("removeTimeout");
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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QDBusWatchAndTimeoutLocker locker(RemoveTimeoutAction, d);
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// is it pending addition?
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QDBusConnectionPrivate::PendingTimeoutList::iterator pit = d->timeoutsPendingAdd.begin();
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while (pit != d->timeoutsPendingAdd.end()) {
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if (pit->first == timeout)
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pit = d->timeoutsPendingAdd.erase(pit);
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else
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++pit;
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}
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// is it a running timer?
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bool correctThread = QCoreApplication::instance() && QThread::currentThread() == d->thread();
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QDBusConnectionPrivate::TimeoutHash::iterator it = d->timeouts.begin();
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while (it != d->timeouts.end()) {
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if (it.value() == timeout) {
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if (correctThread) {
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// correct thread
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d->killTimer(it.key());
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} else {
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// incorrect thread or no application, post an event for later
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QDBusConnectionCallbackEvent *ev = new QDBusConnectionCallbackEvent;
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ev->subtype = QDBusConnectionCallbackEvent::KillTimer;
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ev->timerId = it.key();
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d->postEventToThread(KillTimerAction, d, ev);
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}
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it = d->timeouts.erase(it);
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break;
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} else {
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++it;
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}
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}
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}
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static void qDBusToggleTimeout(DBusTimeout *timeout, void *data)
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{
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Q_ASSERT(timeout);
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Q_ASSERT(data);
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//qDebug("ToggleTimeout");
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qDBusRemoveTimeout(timeout, data);
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qDBusAddTimeout(timeout, data);
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}
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static bool qDBusRealAddWatch(QDBusConnectionPrivate *d, DBusWatch *watch, int flags, int fd);
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static dbus_bool_t qDBusAddWatch(DBusWatch *watch, void *data)
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{
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Q_ASSERT(watch);
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Q_ASSERT(data);
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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int flags = q_dbus_watch_get_flags(watch);
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int fd = q_dbus_watch_get_fd(watch);
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if (QCoreApplication::instance() && QThread::currentThread() == d->thread()) {
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return qDBusRealAddWatch(d, watch, flags, fd);
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} else {
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QDBusConnectionCallbackEvent *ev = new QDBusConnectionCallbackEvent;
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ev->subtype = QDBusConnectionCallbackEvent::AddWatch;
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ev->watch = watch;
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ev->fd = fd;
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ev->extra = flags;
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d->postEventToThread(AddWatchAction, d, ev);
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return true;
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}
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}
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static bool qDBusRealAddWatch(QDBusConnectionPrivate *d, DBusWatch *watch, int flags, int fd)
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{
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QDBusConnectionPrivate::Watcher watcher;
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QDBusWatchAndTimeoutLocker locker(AddWatchAction, d);
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if (flags & DBUS_WATCH_READABLE) {
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//qDebug("addReadWatch %d", fd);
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watcher.watch = watch;
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if (QCoreApplication::instance()) {
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watcher.read = new QSocketNotifier(fd, QSocketNotifier::Read, d);
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watcher.read->setEnabled(q_dbus_watch_get_enabled(watch));
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d->connect(watcher.read, SIGNAL(activated(int)), SLOT(socketRead(int)));
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}
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}
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if (flags & DBUS_WATCH_WRITABLE) {
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//qDebug("addWriteWatch %d", fd);
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watcher.watch = watch;
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if (QCoreApplication::instance()) {
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watcher.write = new QSocketNotifier(fd, QSocketNotifier::Write, d);
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watcher.write->setEnabled(q_dbus_watch_get_enabled(watch));
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d->connect(watcher.write, SIGNAL(activated(int)), SLOT(socketWrite(int)));
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}
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}
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d->watchers.insertMulti(fd, watcher);
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return true;
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}
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static void qDBusRemoveWatch(DBusWatch *watch, void *data)
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{
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Q_ASSERT(watch);
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Q_ASSERT(data);
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//qDebug("remove watch");
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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int fd = q_dbus_watch_get_fd(watch);
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QDBusWatchAndTimeoutLocker locker(RemoveWatchAction, d);
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QDBusConnectionPrivate::WatcherHash::iterator i = d->watchers.find(fd);
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while (i != d->watchers.end() && i.key() == fd) {
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if (i.value().watch == watch) {
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if (QCoreApplication::instance() && QThread::currentThread() == d->thread()) {
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// correct thread, delete the socket notifiers
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delete i.value().read;
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delete i.value().write;
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} else {
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// incorrect thread or no application, use delete later
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if (i->read)
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i->read->deleteLater();
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if (i->write)
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i->write->deleteLater();
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}
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i = d->watchers.erase(i);
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} else {
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++i;
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}
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}
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}
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static void qDBusRealToggleWatch(QDBusConnectionPrivate *d, DBusWatch *watch, int fd);
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static void qDBusToggleWatch(DBusWatch *watch, void *data)
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{
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Q_ASSERT(watch);
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Q_ASSERT(data);
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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int fd = q_dbus_watch_get_fd(watch);
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if (QCoreApplication::instance() && QThread::currentThread() == d->thread()) {
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qDBusRealToggleWatch(d, watch, fd);
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} else {
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QDBusConnectionCallbackEvent *ev = new QDBusConnectionCallbackEvent;
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ev->subtype = QDBusConnectionCallbackEvent::ToggleWatch;
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ev->watch = watch;
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ev->fd = fd;
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d->postEventToThread(ToggleWatchAction, d, ev);
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}
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}
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static void qDBusRealToggleWatch(QDBusConnectionPrivate *d, DBusWatch *watch, int fd)
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{
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QDBusWatchAndTimeoutLocker locker(ToggleWatchAction, d);
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QDBusConnectionPrivate::WatcherHash::iterator i = d->watchers.find(fd);
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while (i != d->watchers.end() && i.key() == fd) {
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if (i.value().watch == watch) {
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bool enabled = q_dbus_watch_get_enabled(watch);
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int flags = q_dbus_watch_get_flags(watch);
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//qDebug("toggle watch %d to %d (write: %d, read: %d)", q_dbus_watch_get_fd(watch), enabled, flags & DBUS_WATCH_WRITABLE, flags & DBUS_WATCH_READABLE);
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if (flags & DBUS_WATCH_READABLE && i.value().read)
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i.value().read->setEnabled(enabled);
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if (flags & DBUS_WATCH_WRITABLE && i.value().write)
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i.value().write->setEnabled(enabled);
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return;
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}
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++i;
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}
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}
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static void qDBusUpdateDispatchStatus(DBusConnection *connection, DBusDispatchStatus new_status, void *data)
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{
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Q_ASSERT(connection);
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Q_UNUSED(connection);
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QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
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static int slotId; // 0 is QObject::deleteLater()
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if (!slotId) {
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// it's ok to do this: there's no race condition because the store is atomic
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// and we always set to the same value
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slotId = QDBusConnectionPrivate::staticMetaObject.indexOfSlot("doDispatch()");
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}
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//qDBusDebug() << "Updating dispatcher status" << slotId;
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if (new_status == DBUS_DISPATCH_DATA_REMAINS)
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QDBusConnectionPrivate::staticMetaObject.method(slotId).
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invoke(d, Qt::QueuedConnection);
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}
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static void qDBusNewConnection(DBusServer *server, DBusConnection *connection, void *data)
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{
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// ### We may want to separate the server from the QDBusConnectionPrivate
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Q_ASSERT(server); Q_UNUSED(server);
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Q_ASSERT(connection);
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Q_ASSERT(data);
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// keep the connection alive
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q_dbus_connection_ref(connection);
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QDBusConnectionPrivate *d = new QDBusConnectionPrivate;
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// setConnection does the error handling for us
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QDBusErrorInternal error;
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d->setPeer(connection, error);
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QDBusConnection retval = QDBusConnectionPrivate::q(d);
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d->setBusService(retval);
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//d->name = QString::number(reinterpret_cast<int>(d));
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//d->setConnection(d->name, d);
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// make QDBusServer emit the newConnection signal
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QDBusConnectionPrivate *server_d = static_cast<QDBusConnectionPrivate *>(data);
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server_d->serverConnection(retval);
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}
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390 |
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391 |
} // extern "C"
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392 |
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393 |
static QByteArray buildMatchRule(const QString &service, const QString & /*owner*/,
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|
394 |
const QString &objectPath, const QString &interface,
|
|
395 |
const QString &member, const QString & /*signature*/)
|
|
396 |
{
|
|
397 |
QString result = QLatin1String("type='signal',");
|
|
398 |
QString keyValue = QLatin1String("%1='%2',");
|
|
399 |
|
|
400 |
if (!service.isEmpty())
|
|
401 |
result += keyValue.arg(QLatin1String("sender"), service);
|
|
402 |
if (!objectPath.isEmpty())
|
|
403 |
result += keyValue.arg(QLatin1String("path"), objectPath);
|
|
404 |
if (!interface.isEmpty())
|
|
405 |
result += keyValue.arg(QLatin1String("interface"), interface);
|
|
406 |
if (!member.isEmpty())
|
|
407 |
result += keyValue.arg(QLatin1String("member"), member);
|
|
408 |
|
|
409 |
result.chop(1); // remove ending comma
|
|
410 |
return result.toLatin1();
|
|
411 |
}
|
|
412 |
|
|
413 |
static bool findObject(const QDBusConnectionPrivate::ObjectTreeNode *root,
|
|
414 |
const QString &fullpath, int &usedLength,
|
|
415 |
QDBusConnectionPrivate::ObjectTreeNode &result)
|
|
416 |
{
|
|
417 |
int start = 0;
|
|
418 |
int length = fullpath.length();
|
|
419 |
if (fullpath.at(0) == QLatin1Char('/'))
|
|
420 |
start = 1;
|
|
421 |
|
|
422 |
// walk the object tree
|
|
423 |
const QDBusConnectionPrivate::ObjectTreeNode *node = root;
|
|
424 |
while (start < length && node && !(node->flags & QDBusConnection::ExportChildObjects)) {
|
|
425 |
int end = fullpath.indexOf(QLatin1Char('/'), start);
|
|
426 |
end = (end == -1 ? length : end);
|
|
427 |
QStringRef pathComponent(&fullpath, start, end - start);
|
|
428 |
|
|
429 |
QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it =
|
|
430 |
qLowerBound(node->children.constBegin(), node->children.constEnd(), pathComponent);
|
|
431 |
if (it != node->children.constEnd() && it->name == pathComponent)
|
|
432 |
// match
|
|
433 |
node = it;
|
|
434 |
else
|
|
435 |
node = 0;
|
|
436 |
|
|
437 |
start = end + 1;
|
|
438 |
}
|
|
439 |
|
|
440 |
// found our object
|
|
441 |
usedLength = (start > length ? length : start);
|
|
442 |
if (node) {
|
|
443 |
if (node->obj || !node->children.isEmpty())
|
|
444 |
result = *node;
|
|
445 |
else
|
|
446 |
// there really is no object here
|
|
447 |
// we're just looking at an unused space in the QVector
|
|
448 |
node = 0;
|
|
449 |
}
|
|
450 |
return node;
|
|
451 |
}
|
|
452 |
|
|
453 |
static QObject *findChildObject(const QDBusConnectionPrivate::ObjectTreeNode *root,
|
|
454 |
const QString &fullpath, int start)
|
|
455 |
{
|
|
456 |
int length = fullpath.length();
|
|
457 |
|
|
458 |
// any object in the tree can tell us to switch to its own object tree:
|
|
459 |
const QDBusConnectionPrivate::ObjectTreeNode *node = root;
|
|
460 |
if (node && node->flags & QDBusConnection::ExportChildObjects) {
|
|
461 |
QObject *obj = node->obj;
|
|
462 |
|
|
463 |
while (obj) {
|
|
464 |
if (start >= length)
|
|
465 |
// we're at the correct level
|
|
466 |
return obj;
|
|
467 |
|
|
468 |
int pos = fullpath.indexOf(QLatin1Char('/'), start);
|
|
469 |
pos = (pos == -1 ? length : pos);
|
|
470 |
QStringRef pathComponent(&fullpath, start, pos - start);
|
|
471 |
|
|
472 |
const QObjectList children = obj->children();
|
|
473 |
|
|
474 |
// find a child with the proper name
|
|
475 |
QObject *next = 0;
|
|
476 |
QObjectList::ConstIterator it = children.constBegin();
|
|
477 |
QObjectList::ConstIterator end = children.constEnd();
|
|
478 |
for ( ; it != end; ++it)
|
|
479 |
if ((*it)->objectName() == pathComponent) {
|
|
480 |
next = *it;
|
|
481 |
break;
|
|
482 |
}
|
|
483 |
|
|
484 |
if (!next)
|
|
485 |
break;
|
|
486 |
|
|
487 |
obj = next;
|
|
488 |
start = pos + 1;
|
|
489 |
}
|
|
490 |
}
|
|
491 |
|
|
492 |
// object not found
|
|
493 |
return 0;
|
|
494 |
}
|
|
495 |
|
|
496 |
extern QDBUS_EXPORT void qDBusAddSpyHook(QDBusSpyHook);
|
|
497 |
void qDBusAddSpyHook(QDBusSpyHook hook)
|
|
498 |
{
|
|
499 |
qDBusSpyHookList()->append(hook);
|
|
500 |
}
|
|
501 |
|
|
502 |
extern "C" {
|
|
503 |
static DBusHandlerResult
|
|
504 |
qDBusSignalFilter(DBusConnection *connection, DBusMessage *message, void *data)
|
|
505 |
{
|
|
506 |
Q_ASSERT(data);
|
|
507 |
Q_UNUSED(connection);
|
|
508 |
QDBusConnectionPrivate *d = static_cast<QDBusConnectionPrivate *>(data);
|
|
509 |
if (d->mode == QDBusConnectionPrivate::InvalidMode)
|
|
510 |
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
511 |
|
|
512 |
QDBusMessage amsg = QDBusMessagePrivate::fromDBusMessage(message);
|
|
513 |
qDBusDebug() << QThread::currentThread() << "got message:" << amsg;
|
|
514 |
|
|
515 |
return d->handleMessage(amsg) ?
|
|
516 |
DBUS_HANDLER_RESULT_HANDLED :
|
|
517 |
DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
|
|
518 |
}
|
|
519 |
}
|
|
520 |
|
|
521 |
bool QDBusConnectionPrivate::handleMessage(const QDBusMessage &amsg)
|
|
522 |
{
|
|
523 |
const QDBusSpyHookList *list = qDBusSpyHookList();
|
|
524 |
for (int i = 0; i < list->size(); ++i) {
|
|
525 |
qDBusDebug() << "calling the message spy hook";
|
|
526 |
(*(*list)[i])(amsg);
|
|
527 |
}
|
|
528 |
|
|
529 |
switch (amsg.type()) {
|
|
530 |
case QDBusMessage::SignalMessage:
|
|
531 |
handleSignal(amsg);
|
|
532 |
return true;
|
|
533 |
break;
|
|
534 |
case QDBusMessage::MethodCallMessage:
|
|
535 |
handleObjectCall(amsg);
|
|
536 |
return true;
|
|
537 |
case QDBusMessage::ReplyMessage:
|
|
538 |
case QDBusMessage::ErrorMessage:
|
|
539 |
return false; // we don't handle those here
|
|
540 |
case QDBusMessage::InvalidMessage:
|
|
541 |
Q_ASSERT_X(false, "QDBusConnection", "Invalid message found when processing");
|
|
542 |
break;
|
|
543 |
}
|
|
544 |
|
|
545 |
return false;
|
|
546 |
}
|
|
547 |
|
|
548 |
static void huntAndDestroy(QObject *needle, QDBusConnectionPrivate::ObjectTreeNode &haystack)
|
|
549 |
{
|
|
550 |
QDBusConnectionPrivate::ObjectTreeNode::DataList::Iterator it = haystack.children.begin();
|
|
551 |
QDBusConnectionPrivate::ObjectTreeNode::DataList::Iterator end = haystack.children.end();
|
|
552 |
for ( ; it != end; ++it)
|
|
553 |
huntAndDestroy(needle, *it);
|
|
554 |
|
|
555 |
if (needle == haystack.obj) {
|
|
556 |
haystack.obj = 0;
|
|
557 |
haystack.flags = 0;
|
|
558 |
}
|
|
559 |
}
|
|
560 |
|
|
561 |
static void huntAndEmit(DBusConnection *connection, DBusMessage *msg,
|
|
562 |
QObject *needle, const QDBusConnectionPrivate::ObjectTreeNode &haystack,
|
|
563 |
bool isScriptable, bool isAdaptor, const QString &path = QString())
|
|
564 |
{
|
|
565 |
QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it = haystack.children.constBegin();
|
|
566 |
QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator end = haystack.children.constEnd();
|
|
567 |
for ( ; it != end; ++it)
|
|
568 |
huntAndEmit(connection, msg, needle, *it, isScriptable, isAdaptor, path + QLatin1Char('/') + it->name);
|
|
569 |
|
|
570 |
if (needle == haystack.obj) {
|
|
571 |
// is this a signal we should relay?
|
|
572 |
if (isAdaptor && (haystack.flags & QDBusConnection::ExportAdaptors) == 0)
|
|
573 |
return; // no: it comes from an adaptor and we're not exporting adaptors
|
|
574 |
else if (!isAdaptor) {
|
|
575 |
int mask = isScriptable
|
|
576 |
? QDBusConnection::ExportScriptableSignals
|
|
577 |
: QDBusConnection::ExportNonScriptableSignals;
|
|
578 |
if ((haystack.flags & mask) == 0)
|
|
579 |
return; // signal was not exported
|
|
580 |
}
|
|
581 |
|
|
582 |
QByteArray p = path.toLatin1();
|
|
583 |
if (p.isEmpty())
|
|
584 |
p = "/";
|
|
585 |
qDBusDebug() << QThread::currentThread() << "emitting signal at" << p;
|
|
586 |
DBusMessage *msg2 = q_dbus_message_copy(msg);
|
|
587 |
q_dbus_message_set_path(msg2, p);
|
|
588 |
q_dbus_connection_send(connection, msg2, 0);
|
|
589 |
q_dbus_message_unref(msg2);
|
|
590 |
}
|
|
591 |
}
|
|
592 |
|
|
593 |
static int findSlot(const QMetaObject *mo, const QByteArray &name, int flags,
|
|
594 |
const QString &signature_, QList<int>& metaTypes)
|
|
595 |
{
|
|
596 |
QByteArray msgSignature = signature_.toLatin1();
|
|
597 |
|
|
598 |
for (int idx = mo->methodCount() - 1 ; idx >= QObject::staticMetaObject.methodCount(); --idx) {
|
|
599 |
QMetaMethod mm = mo->method(idx);
|
|
600 |
|
|
601 |
// check access:
|
|
602 |
if (mm.access() != QMetaMethod::Public)
|
|
603 |
continue;
|
|
604 |
|
|
605 |
// check type:
|
|
606 |
if (mm.methodType() != QMetaMethod::Slot)
|
|
607 |
continue;
|
|
608 |
|
|
609 |
// check name:
|
|
610 |
QByteArray slotname = mm.signature();
|
|
611 |
int paren = slotname.indexOf('(');
|
|
612 |
if (paren != name.length() || !slotname.startsWith(name))
|
|
613 |
continue;
|
|
614 |
|
|
615 |
int returnType = qDBusNameToTypeId(mm.typeName());
|
|
616 |
bool isAsync = qDBusCheckAsyncTag(mm.tag());
|
|
617 |
bool isScriptable = mm.attributes() & QMetaMethod::Scriptable;
|
|
618 |
|
|
619 |
// consistency check:
|
|
620 |
if (isAsync && returnType != QMetaType::Void)
|
|
621 |
continue;
|
|
622 |
|
|
623 |
int inputCount = qDBusParametersForMethod(mm, metaTypes);
|
|
624 |
if (inputCount == -1)
|
|
625 |
continue; // problem parsing
|
|
626 |
|
|
627 |
metaTypes[0] = returnType;
|
|
628 |
bool hasMessage = false;
|
|
629 |
if (inputCount > 0 &&
|
|
630 |
metaTypes.at(inputCount) == QDBusMetaTypeId::message) {
|
|
631 |
// "no input parameters" is allowed as long as the message meta type is there
|
|
632 |
hasMessage = true;
|
|
633 |
--inputCount;
|
|
634 |
}
|
|
635 |
|
|
636 |
// try to match the parameters
|
|
637 |
int i;
|
|
638 |
QByteArray reconstructedSignature;
|
|
639 |
for (i = 1; i <= inputCount; ++i) {
|
|
640 |
const char *typeSignature = QDBusMetaType::typeToSignature( metaTypes.at(i) );
|
|
641 |
if (!typeSignature)
|
|
642 |
break; // invalid
|
|
643 |
|
|
644 |
reconstructedSignature += typeSignature;
|
|
645 |
if (!msgSignature.startsWith(reconstructedSignature))
|
|
646 |
break;
|
|
647 |
}
|
|
648 |
|
|
649 |
if (reconstructedSignature != msgSignature)
|
|
650 |
continue; // we didn't match them all
|
|
651 |
|
|
652 |
if (hasMessage)
|
|
653 |
++i;
|
|
654 |
|
|
655 |
// make sure that the output parameters have signatures too
|
|
656 |
if (returnType != 0 && QDBusMetaType::typeToSignature(returnType) == 0)
|
|
657 |
continue;
|
|
658 |
|
|
659 |
bool ok = true;
|
|
660 |
for (int j = i; ok && j < metaTypes.count(); ++j)
|
|
661 |
if (QDBusMetaType::typeToSignature(metaTypes.at(i)) == 0)
|
|
662 |
ok = false;
|
|
663 |
if (!ok)
|
|
664 |
continue;
|
|
665 |
|
|
666 |
// consistency check:
|
|
667 |
if (isAsync && metaTypes.count() > i + 1)
|
|
668 |
continue;
|
|
669 |
|
|
670 |
if (isScriptable && (flags & QDBusConnection::ExportScriptableSlots) == 0)
|
|
671 |
continue; // not exported
|
|
672 |
if (!isScriptable && (flags & QDBusConnection::ExportNonScriptableSlots) == 0)
|
|
673 |
continue; // not exported
|
|
674 |
|
|
675 |
// if we got here, this slot matched
|
|
676 |
return idx;
|
|
677 |
}
|
|
678 |
|
|
679 |
// no slot matched
|
|
680 |
return -1;
|
|
681 |
}
|
|
682 |
|
|
683 |
QDBusCallDeliveryEvent* QDBusConnectionPrivate::prepareReply(QDBusConnectionPrivate *target,
|
|
684 |
QObject *object, int idx,
|
|
685 |
const QList<int> &metaTypes,
|
|
686 |
const QDBusMessage &msg)
|
|
687 |
{
|
|
688 |
Q_ASSERT(object);
|
|
689 |
Q_UNUSED(object);
|
|
690 |
|
|
691 |
int n = metaTypes.count() - 1;
|
|
692 |
if (metaTypes[n] == QDBusMetaTypeId::message)
|
|
693 |
--n;
|
|
694 |
|
|
695 |
// check that types match
|
|
696 |
for (int i = 0; i < n; ++i)
|
|
697 |
if (metaTypes.at(i + 1) != msg.arguments().at(i).userType() &&
|
|
698 |
msg.arguments().at(i).userType() != qMetaTypeId<QDBusArgument>())
|
|
699 |
return 0; // no match
|
|
700 |
|
|
701 |
// we can deliver
|
|
702 |
// prepare for the call
|
|
703 |
return new QDBusCallDeliveryEvent(QDBusConnection(target), idx, target, msg, metaTypes);
|
|
704 |
}
|
|
705 |
|
|
706 |
void QDBusConnectionPrivate::activateSignal(const QDBusConnectionPrivate::SignalHook& hook,
|
|
707 |
const QDBusMessage &msg)
|
|
708 |
{
|
|
709 |
// This is called by QDBusConnectionPrivate::handleSignal to deliver a signal
|
|
710 |
// that was received from D-Bus
|
|
711 |
//
|
|
712 |
// Signals are delivered to slots if the parameters match
|
|
713 |
// Slots can have less parameters than there are on the message
|
|
714 |
// Slots can optionally have one final parameter that is a QDBusMessage
|
|
715 |
// Slots receive read-only copies of the message (i.e., pass by value or by const-ref)
|
|
716 |
QDBusCallDeliveryEvent *call = prepareReply(this, hook.obj, hook.midx, hook.params, msg);
|
|
717 |
if (call)
|
|
718 |
postEventToThread(ActivateSignalAction, hook.obj, call);
|
|
719 |
}
|
|
720 |
|
|
721 |
bool QDBusConnectionPrivate::activateCall(QObject* object, int flags, const QDBusMessage &msg)
|
|
722 |
{
|
|
723 |
// This is called by QDBusConnectionPrivate::handleObjectCall to place a call
|
|
724 |
// to a slot on the object.
|
|
725 |
//
|
|
726 |
// The call is delivered to the first slot that matches the following conditions:
|
|
727 |
// - has the same name as the message's target member
|
|
728 |
// - ALL of the message's types are found in slot's parameter list
|
|
729 |
// - optionally has one more parameter of type QDBusMessage
|
|
730 |
// If none match, then the slot of the same name as the message target and with
|
|
731 |
// the first type of QDBusMessage is delivered.
|
|
732 |
//
|
|
733 |
// The D-Bus specification requires that all MethodCall messages be replied to, unless the
|
|
734 |
// caller specifically waived this requirement. This means that we inspect if the user slot
|
|
735 |
// generated a reply and, if it didn't, we will. Obviously, if the user slot doesn't take a
|
|
736 |
// QDBusMessage parameter, it cannot generate a reply.
|
|
737 |
//
|
|
738 |
// When a return message is generated, the slot's return type, if any, will be placed
|
|
739 |
// in the message's first position. If there are non-const reference parameters to the
|
|
740 |
// slot, they must appear at the end and will be placed in the subsequent message
|
|
741 |
// positions.
|
|
742 |
|
|
743 |
static const char cachePropertyName[] = "_qdbus_slotCache";
|
|
744 |
|
|
745 |
if (!object)
|
|
746 |
return false;
|
|
747 |
|
|
748 |
Q_ASSERT_X(QThread::currentThread() == object->thread(),
|
|
749 |
"QDBusConnection: internal threading error",
|
|
750 |
"function called for an object that is in another thread!!");
|
|
751 |
|
|
752 |
QDBusSlotCache slotCache =
|
|
753 |
qvariant_cast<QDBusSlotCache>(object->property(cachePropertyName));
|
|
754 |
QString cacheKey = msg.member(), signature = msg.signature();
|
|
755 |
if (!signature.isEmpty()) {
|
|
756 |
cacheKey.reserve(cacheKey.length() + 1 + signature.length());
|
|
757 |
cacheKey += QLatin1Char('.');
|
|
758 |
cacheKey += signature;
|
|
759 |
}
|
|
760 |
|
|
761 |
QDBusSlotCache::Hash::ConstIterator cacheIt = slotCache.hash.constFind(cacheKey);
|
|
762 |
while (cacheIt != slotCache.hash.constEnd() && cacheIt->flags != flags &&
|
|
763 |
cacheIt.key() == cacheKey)
|
|
764 |
++cacheIt;
|
|
765 |
if (cacheIt == slotCache.hash.constEnd() || cacheIt.key() != cacheKey)
|
|
766 |
{
|
|
767 |
// not cached, analyse the meta object
|
|
768 |
const QMetaObject *mo = object->metaObject();
|
|
769 |
QByteArray memberName = msg.member().toUtf8();
|
|
770 |
|
|
771 |
// find a slot that matches according to the rules above
|
|
772 |
QDBusSlotCache::Data slotData;
|
|
773 |
slotData.flags = flags;
|
|
774 |
slotData.slotIdx = ::findSlot(mo, memberName, flags, msg.signature(), slotData.metaTypes);
|
|
775 |
if (slotData.slotIdx == -1) {
|
|
776 |
// ### this is where we want to add the connection as an arg too
|
|
777 |
// try with no parameters, but with a QDBusMessage
|
|
778 |
slotData.slotIdx = ::findSlot(mo, memberName, flags, QString(), slotData.metaTypes);
|
|
779 |
if (slotData.metaTypes.count() != 2 ||
|
|
780 |
slotData.metaTypes.at(1) != QDBusMetaTypeId::message) {
|
|
781 |
// not found
|
|
782 |
// save the negative lookup
|
|
783 |
slotData.slotIdx = -1;
|
|
784 |
slotData.metaTypes.clear();
|
|
785 |
slotCache.hash.insert(cacheKey, slotData);
|
|
786 |
object->setProperty(cachePropertyName, qVariantFromValue(slotCache));
|
|
787 |
return false;
|
|
788 |
}
|
|
789 |
}
|
|
790 |
|
|
791 |
// save to the cache
|
|
792 |
slotCache.hash.insert(cacheKey, slotData);
|
|
793 |
object->setProperty(cachePropertyName, qVariantFromValue(slotCache));
|
|
794 |
|
|
795 |
// found the slot to be called
|
|
796 |
deliverCall(object, flags, msg, slotData.metaTypes, slotData.slotIdx);
|
|
797 |
return true;
|
|
798 |
} else if (cacheIt->slotIdx == -1) {
|
|
799 |
// negative cache
|
|
800 |
return false;
|
|
801 |
} else {
|
|
802 |
// use the cache
|
|
803 |
deliverCall(object, flags, msg, cacheIt->metaTypes, cacheIt->slotIdx);
|
|
804 |
return true;
|
|
805 |
}
|
|
806 |
}
|
|
807 |
|
|
808 |
void QDBusConnectionPrivate::deliverCall(QObject *object, int /*flags*/, const QDBusMessage &msg,
|
|
809 |
const QList<int> &metaTypes, int slotIdx)
|
|
810 |
{
|
|
811 |
Q_ASSERT_X(!object || QThread::currentThread() == object->thread(),
|
|
812 |
"QDBusConnection: internal threading error",
|
|
813 |
"function called for an object that is in another thread!!");
|
|
814 |
|
|
815 |
QVarLengthArray<void *, 10> params;
|
|
816 |
params.reserve(metaTypes.count());
|
|
817 |
|
|
818 |
QVariantList auxParameters;
|
|
819 |
// let's create the parameter list
|
|
820 |
|
|
821 |
// first one is the return type -- add it below
|
|
822 |
params.append(0);
|
|
823 |
|
|
824 |
// add the input parameters
|
|
825 |
int i;
|
|
826 |
int pCount = qMin(msg.arguments().count(), metaTypes.count() - 1);
|
|
827 |
for (i = 1; i <= pCount; ++i) {
|
|
828 |
int id = metaTypes[i];
|
|
829 |
if (id == QDBusMetaTypeId::message)
|
|
830 |
break;
|
|
831 |
|
|
832 |
const QVariant &arg = msg.arguments().at(i - 1);
|
|
833 |
if (arg.userType() == id)
|
|
834 |
// no conversion needed
|
|
835 |
params.append(const_cast<void *>(arg.constData()));
|
|
836 |
else if (arg.userType() == qMetaTypeId<QDBusArgument>()) {
|
|
837 |
// convert to what the function expects
|
|
838 |
void *null = 0;
|
|
839 |
auxParameters.append(QVariant(id, null));
|
|
840 |
|
|
841 |
const QDBusArgument &in =
|
|
842 |
*reinterpret_cast<const QDBusArgument *>(arg.constData());
|
|
843 |
QVariant &out = auxParameters[auxParameters.count() - 1];
|
|
844 |
|
|
845 |
if (!QDBusMetaType::demarshall(in, out.userType(), out.data()))
|
|
846 |
qFatal("Internal error: demarshalling function for type '%s' (%d) failed!",
|
|
847 |
out.typeName(), out.userType());
|
|
848 |
|
|
849 |
params.append(const_cast<void *>(out.constData()));
|
|
850 |
} else {
|
|
851 |
qFatal("Internal error: got invalid meta type %d (%s) "
|
|
852 |
"when trying to convert to meta type %d (%s)",
|
|
853 |
arg.userType(), QMetaType::typeName(arg.userType()),
|
|
854 |
id, QMetaType::typeName(id));
|
|
855 |
}
|
|
856 |
}
|
|
857 |
|
|
858 |
bool takesMessage = false;
|
|
859 |
if (metaTypes.count() > i && metaTypes[i] == QDBusMetaTypeId::message) {
|
|
860 |
params.append(const_cast<void*>(static_cast<const void*>(&msg)));
|
|
861 |
takesMessage = true;
|
|
862 |
++i;
|
|
863 |
}
|
|
864 |
|
|
865 |
// output arguments
|
|
866 |
QVariantList outputArgs;
|
|
867 |
void *null = 0;
|
|
868 |
if (metaTypes[0] != QMetaType::Void) {
|
|
869 |
QVariant arg(metaTypes[0], null);
|
|
870 |
outputArgs.append( arg );
|
|
871 |
params[0] = const_cast<void*>(outputArgs.at( outputArgs.count() - 1 ).constData());
|
|
872 |
}
|
|
873 |
for ( ; i < metaTypes.count(); ++i) {
|
|
874 |
QVariant arg(metaTypes[i], null);
|
|
875 |
outputArgs.append( arg );
|
|
876 |
params.append(const_cast<void*>(outputArgs.at( outputArgs.count() - 1 ).constData()));
|
|
877 |
}
|
|
878 |
|
|
879 |
// make call:
|
|
880 |
bool fail;
|
|
881 |
if (!object) {
|
|
882 |
fail = true;
|
|
883 |
} else {
|
|
884 |
// FIXME: save the old sender!
|
|
885 |
QDBusContextPrivate context(QDBusConnection(this), msg);
|
|
886 |
QDBusContextPrivate *old = QDBusContextPrivate::set(object, &context);
|
|
887 |
QDBusConnectionPrivate::setSender(this);
|
|
888 |
|
|
889 |
QPointer<QObject> ptr = object;
|
|
890 |
fail = object->qt_metacall(QMetaObject::InvokeMetaMethod,
|
|
891 |
slotIdx, params.data()) >= 0;
|
|
892 |
QDBusConnectionPrivate::setSender(0);
|
|
893 |
// the object might be deleted in the slot
|
|
894 |
if (!ptr.isNull())
|
|
895 |
QDBusContextPrivate::set(object, old);
|
|
896 |
}
|
|
897 |
|
|
898 |
// do we create a reply? Only if the caller is waiting for a reply and one hasn't been sent
|
|
899 |
// yet.
|
|
900 |
if (msg.isReplyRequired() && !msg.isDelayedReply()) {
|
|
901 |
if (!fail) {
|
|
902 |
// normal reply
|
|
903 |
qDBusDebug() << QThread::currentThread() << "Automatically sending reply:" << outputArgs;
|
|
904 |
send(msg.createReply(outputArgs));
|
|
905 |
} else {
|
|
906 |
// generate internal error
|
|
907 |
qWarning("Internal error: Failed to deliver message");
|
|
908 |
send(msg.createErrorReply(QDBusError::InternalError,
|
|
909 |
QLatin1String("Failed to deliver message")));
|
|
910 |
}
|
|
911 |
}
|
|
912 |
|
|
913 |
return;
|
|
914 |
}
|
|
915 |
|
|
916 |
extern bool qDBusInitThreads();
|
|
917 |
|
|
918 |
QDBusConnectionPrivate::QDBusConnectionPrivate(QObject *p)
|
|
919 |
: QObject(p), ref(1), mode(InvalidMode), connection(0), server(0), busService(0),
|
|
920 |
watchAndTimeoutLock(QMutex::Recursive),
|
|
921 |
rootNode(QString(QLatin1Char('/')))
|
|
922 |
{
|
|
923 |
static const bool threads = q_dbus_threads_init_default();
|
|
924 |
static const int debugging = ::isDebugging = qgetenv("QDBUS_DEBUG").toInt();
|
|
925 |
Q_UNUSED(threads)
|
|
926 |
Q_UNUSED(debugging)
|
|
927 |
|
|
928 |
#ifdef QDBUS_THREAD_DEBUG
|
|
929 |
if (debugging > 1)
|
|
930 |
qdbusThreadDebug = qdbusDefaultThreadDebug;
|
|
931 |
#endif
|
|
932 |
|
|
933 |
QDBusMetaTypeId::init();
|
|
934 |
|
|
935 |
rootNode.flags = 0;
|
|
936 |
|
|
937 |
connect(this, SIGNAL(serviceOwnerChanged(QString,QString,QString)),
|
|
938 |
this, SLOT(_q_serviceOwnerChanged(QString,QString,QString)));
|
|
939 |
}
|
|
940 |
|
|
941 |
QDBusConnectionPrivate::~QDBusConnectionPrivate()
|
|
942 |
{
|
|
943 |
if (thread() && thread() != QThread::currentThread())
|
|
944 |
qWarning("QDBusConnection(name=\"%s\")'s last reference in not in its creation thread! "
|
|
945 |
"Timer and socket errors will follow and the program will probably crash",
|
|
946 |
qPrintable(name));
|
|
947 |
|
|
948 |
closeConnection();
|
|
949 |
rootNode.children.clear(); // free resources
|
|
950 |
qDeleteAll(cachedMetaObjects);
|
|
951 |
|
|
952 |
if (server)
|
|
953 |
q_dbus_server_unref(server);
|
|
954 |
if (connection)
|
|
955 |
q_dbus_connection_unref(connection);
|
|
956 |
|
|
957 |
connection = 0;
|
|
958 |
server = 0;
|
|
959 |
}
|
|
960 |
|
|
961 |
void QDBusConnectionPrivate::deleteYourself()
|
|
962 |
{
|
|
963 |
if (thread() && thread() != QThread::currentThread()) {
|
|
964 |
// last reference dropped while not in the correct thread
|
|
965 |
// ask the correct thread to delete
|
|
966 |
|
|
967 |
// note: since we're posting an event to another thread, we
|
|
968 |
// must consider deleteLater() to take effect immediately
|
|
969 |
deleteLater();
|
|
970 |
} else {
|
|
971 |
delete this;
|
|
972 |
}
|
|
973 |
}
|
|
974 |
|
|
975 |
void QDBusConnectionPrivate::closeConnection()
|
|
976 |
{
|
|
977 |
QDBusWriteLocker locker(CloseConnectionAction, this);
|
|
978 |
ConnectionMode oldMode = mode;
|
|
979 |
mode = InvalidMode; // prevent reentrancy
|
|
980 |
baseService.clear();
|
|
981 |
|
|
982 |
if (oldMode == ServerMode) {
|
|
983 |
if (server) {
|
|
984 |
q_dbus_server_disconnect(server);
|
|
985 |
}
|
|
986 |
} else if (oldMode == ClientMode || oldMode == PeerMode) {
|
|
987 |
if (connection) {
|
|
988 |
q_dbus_connection_close(connection);
|
|
989 |
// send the "close" message
|
|
990 |
while (q_dbus_connection_dispatch(connection) == DBUS_DISPATCH_DATA_REMAINS)
|
|
991 |
;
|
|
992 |
}
|
|
993 |
}
|
|
994 |
}
|
|
995 |
|
|
996 |
void QDBusConnectionPrivate::checkThread()
|
|
997 |
{
|
|
998 |
if (!thread()) {
|
|
999 |
if (QCoreApplication::instance())
|
|
1000 |
moveToThread(QCoreApplication::instance()->thread());
|
|
1001 |
else
|
|
1002 |
qWarning("The thread that had QDBusConnection('%s') has died and there is no main thread",
|
|
1003 |
qPrintable(name));
|
|
1004 |
}
|
|
1005 |
}
|
|
1006 |
|
|
1007 |
bool QDBusConnectionPrivate::handleError(const QDBusErrorInternal &error)
|
|
1008 |
{
|
|
1009 |
if (!error)
|
|
1010 |
return false; // no error
|
|
1011 |
|
|
1012 |
//lock.lockForWrite();
|
|
1013 |
lastError = error;
|
|
1014 |
//lock.unlock();
|
|
1015 |
return true;
|
|
1016 |
}
|
|
1017 |
|
|
1018 |
void QDBusConnectionPrivate::timerEvent(QTimerEvent *e)
|
|
1019 |
{
|
|
1020 |
{
|
|
1021 |
QDBusWatchAndTimeoutLocker locker(TimerEventAction, this);
|
|
1022 |
DBusTimeout *timeout = timeouts.value(e->timerId(), 0);
|
|
1023 |
if (timeout)
|
|
1024 |
q_dbus_timeout_handle(timeout);
|
|
1025 |
}
|
|
1026 |
|
|
1027 |
doDispatch();
|
|
1028 |
}
|
|
1029 |
|
|
1030 |
void QDBusConnectionPrivate::customEvent(QEvent *e)
|
|
1031 |
{
|
|
1032 |
Q_ASSERT(e->type() == QEvent::User);
|
|
1033 |
|
|
1034 |
QDBusConnectionCallbackEvent *ev = static_cast<QDBusConnectionCallbackEvent *>(e);
|
|
1035 |
QDBusLockerBase::reportThreadAction(int(AddTimeoutAction) + int(ev->subtype),
|
|
1036 |
QDBusLockerBase::BeforeDeliver, this);
|
|
1037 |
switch (ev->subtype)
|
|
1038 |
{
|
|
1039 |
case QDBusConnectionCallbackEvent::AddTimeout: {
|
|
1040 |
QDBusWatchAndTimeoutLocker locker(RealAddTimeoutAction, this);
|
|
1041 |
while (!timeoutsPendingAdd.isEmpty()) {
|
|
1042 |
QPair<DBusTimeout *, int> entry = timeoutsPendingAdd.takeFirst();
|
|
1043 |
qDBusRealAddTimeout(this, entry.first, entry.second);
|
|
1044 |
}
|
|
1045 |
break;
|
|
1046 |
}
|
|
1047 |
|
|
1048 |
case QDBusConnectionCallbackEvent::KillTimer:
|
|
1049 |
killTimer(ev->timerId);
|
|
1050 |
break;
|
|
1051 |
|
|
1052 |
case QDBusConnectionCallbackEvent::AddWatch:
|
|
1053 |
qDBusRealAddWatch(this, ev->watch, ev->extra, ev->fd);
|
|
1054 |
break;
|
|
1055 |
|
|
1056 |
case QDBusConnectionCallbackEvent::ToggleWatch:
|
|
1057 |
qDBusRealToggleWatch(this, ev->watch, ev->fd);
|
|
1058 |
break;
|
|
1059 |
}
|
|
1060 |
QDBusLockerBase::reportThreadAction(int(AddTimeoutAction) + int(ev->subtype),
|
|
1061 |
QDBusLockerBase::AfterDeliver, this);
|
|
1062 |
}
|
|
1063 |
|
|
1064 |
void QDBusConnectionPrivate::doDispatch()
|
|
1065 |
{
|
|
1066 |
QDBusDispatchLocker locker(DoDispatchAction, this);
|
|
1067 |
if (mode == ClientMode || mode == PeerMode)
|
|
1068 |
while (q_dbus_connection_dispatch(connection) == DBUS_DISPATCH_DATA_REMAINS) ;
|
|
1069 |
}
|
|
1070 |
|
|
1071 |
void QDBusConnectionPrivate::socketRead(int fd)
|
|
1072 |
{
|
|
1073 |
QVarLengthArray<DBusWatch *, 2> pendingWatches;
|
|
1074 |
|
|
1075 |
{
|
|
1076 |
QDBusWatchAndTimeoutLocker locker(SocketReadAction, this);
|
|
1077 |
WatcherHash::ConstIterator it = watchers.constFind(fd);
|
|
1078 |
while (it != watchers.constEnd() && it.key() == fd) {
|
|
1079 |
if (it->watch && it->read && it->read->isEnabled())
|
|
1080 |
pendingWatches.append(it.value().watch);
|
|
1081 |
++it;
|
|
1082 |
}
|
|
1083 |
}
|
|
1084 |
|
|
1085 |
for (int i = 0; i < pendingWatches.size(); ++i)
|
|
1086 |
if (!q_dbus_watch_handle(pendingWatches[i], DBUS_WATCH_READABLE))
|
|
1087 |
qDebug("OUT OF MEM");
|
|
1088 |
doDispatch();
|
|
1089 |
}
|
|
1090 |
|
|
1091 |
void QDBusConnectionPrivate::socketWrite(int fd)
|
|
1092 |
{
|
|
1093 |
QVarLengthArray<DBusWatch *, 2> pendingWatches;
|
|
1094 |
|
|
1095 |
{
|
|
1096 |
QDBusWatchAndTimeoutLocker locker(SocketWriteAction, this);
|
|
1097 |
WatcherHash::ConstIterator it = watchers.constFind(fd);
|
|
1098 |
while (it != watchers.constEnd() && it.key() == fd) {
|
|
1099 |
if (it->watch && it->write && it->write->isEnabled())
|
|
1100 |
pendingWatches.append(it.value().watch);
|
|
1101 |
++it;
|
|
1102 |
}
|
|
1103 |
}
|
|
1104 |
|
|
1105 |
for (int i = 0; i < pendingWatches.size(); ++i)
|
|
1106 |
if (!q_dbus_watch_handle(pendingWatches[i], DBUS_WATCH_WRITABLE))
|
|
1107 |
qDebug("OUT OF MEM");
|
|
1108 |
}
|
|
1109 |
|
|
1110 |
void QDBusConnectionPrivate::objectDestroyed(QObject *obj)
|
|
1111 |
{
|
|
1112 |
QDBusWriteLocker locker(ObjectDestroyedAction, this);
|
|
1113 |
huntAndDestroy(obj, rootNode);
|
|
1114 |
|
|
1115 |
SignalHookHash::iterator sit = signalHooks.begin();
|
|
1116 |
while (sit != signalHooks.end()) {
|
|
1117 |
if (static_cast<QObject *>(sit.value().obj) == obj)
|
|
1118 |
sit = disconnectSignal(sit);
|
|
1119 |
else
|
|
1120 |
++sit;
|
|
1121 |
}
|
|
1122 |
|
|
1123 |
obj->disconnect(this);
|
|
1124 |
}
|
|
1125 |
|
|
1126 |
void QDBusConnectionPrivate::relaySignal(QObject *obj, const QMetaObject *mo, int signalId,
|
|
1127 |
const QVariantList &args)
|
|
1128 |
{
|
|
1129 |
QString interface = qDBusInterfaceFromMetaObject(mo);
|
|
1130 |
|
|
1131 |
QMetaMethod mm = mo->method(signalId);
|
|
1132 |
QByteArray memberName = mm.signature();
|
|
1133 |
memberName.truncate(memberName.indexOf('('));
|
|
1134 |
|
|
1135 |
// check if it's scriptable
|
|
1136 |
bool isScriptable = mm.attributes() & QMetaMethod::Scriptable;
|
|
1137 |
bool isAdaptor = false;
|
|
1138 |
for ( ; mo; mo = mo->superClass())
|
|
1139 |
if (mo == &QDBusAbstractAdaptor::staticMetaObject) {
|
|
1140 |
isAdaptor = true;
|
|
1141 |
break;
|
|
1142 |
}
|
|
1143 |
|
|
1144 |
QDBusReadLocker locker(RelaySignalAction, this);
|
|
1145 |
QDBusMessage message = QDBusMessage::createSignal(QLatin1String("/"), interface,
|
|
1146 |
QLatin1String(memberName));
|
|
1147 |
QDBusMessagePrivate::setParametersValidated(message, true);
|
|
1148 |
message.setArguments(args);
|
|
1149 |
QDBusError error;
|
|
1150 |
DBusMessage *msg = QDBusMessagePrivate::toDBusMessage(message, &error);
|
|
1151 |
if (!msg) {
|
|
1152 |
qWarning("QDBusConnection: Could not emit signal %s.%s: %s", qPrintable(interface), memberName.constData(),
|
|
1153 |
qPrintable(error.message()));
|
|
1154 |
lastError = error;
|
|
1155 |
return;
|
|
1156 |
}
|
|
1157 |
|
|
1158 |
//qDBusDebug() << "Emitting signal" << message;
|
|
1159 |
//qDBusDebug() << "for paths:";
|
|
1160 |
q_dbus_message_set_no_reply(msg, true); // the reply would not be delivered to anything
|
|
1161 |
huntAndEmit(connection, msg, obj, rootNode, isScriptable, isAdaptor);
|
|
1162 |
q_dbus_message_unref(msg);
|
|
1163 |
}
|
|
1164 |
|
|
1165 |
void QDBusConnectionPrivate::_q_serviceOwnerChanged(const QString &name,
|
|
1166 |
const QString &oldOwner, const QString &newOwner)
|
|
1167 |
{
|
|
1168 |
if (oldOwner == baseService)
|
|
1169 |
unregisterService(name);
|
|
1170 |
if (newOwner == baseService)
|
|
1171 |
registerService(name);
|
|
1172 |
|
|
1173 |
QDBusWriteLocker locker(UpdateSignalHookOwnerAction, this);
|
|
1174 |
QMutableHashIterator<QString, SignalHook> it(signalHooks);
|
|
1175 |
it.toFront();
|
|
1176 |
while (it.hasNext())
|
|
1177 |
if (it.next().value().service == name)
|
|
1178 |
it.value().owner = newOwner;
|
|
1179 |
}
|
|
1180 |
|
|
1181 |
int QDBusConnectionPrivate::findSlot(QObject* obj, const QByteArray &normalizedName,
|
|
1182 |
QList<int> ¶ms)
|
|
1183 |
{
|
|
1184 |
int midx = obj->metaObject()->indexOfMethod(normalizedName);
|
|
1185 |
if (midx == -1)
|
|
1186 |
return -1;
|
|
1187 |
|
|
1188 |
int inputCount = qDBusParametersForMethod(obj->metaObject()->method(midx), params);
|
|
1189 |
if ( inputCount == -1 || inputCount + 1 != params.count() )
|
|
1190 |
return -1; // failed to parse or invalid arguments or output arguments
|
|
1191 |
|
|
1192 |
return midx;
|
|
1193 |
}
|
|
1194 |
|
|
1195 |
bool QDBusConnectionPrivate::prepareHook(QDBusConnectionPrivate::SignalHook &hook, QString &key,
|
|
1196 |
const QString &service, const QString &owner,
|
|
1197 |
const QString &path, const QString &interface, const QString &name,
|
|
1198 |
QObject *receiver, const char *signal, int minMIdx,
|
|
1199 |
bool buildSignature)
|
|
1200 |
{
|
|
1201 |
QByteArray normalizedName = signal + 1;
|
|
1202 |
hook.midx = findSlot(receiver, signal + 1, hook.params);
|
|
1203 |
if (hook.midx == -1) {
|
|
1204 |
normalizedName = QMetaObject::normalizedSignature(signal + 1);
|
|
1205 |
hook.midx = findSlot(receiver, normalizedName, hook.params);
|
|
1206 |
}
|
|
1207 |
if (hook.midx < minMIdx) {
|
|
1208 |
if (hook.midx == -1)
|
|
1209 |
{}
|
|
1210 |
return false;
|
|
1211 |
}
|
|
1212 |
|
|
1213 |
hook.service = service;
|
|
1214 |
hook.owner = owner; // we don't care if the service has an owner yet
|
|
1215 |
hook.path = path;
|
|
1216 |
hook.obj = receiver;
|
|
1217 |
|
|
1218 |
// build the D-Bus signal name and signature
|
|
1219 |
// This should not happen for QDBusConnection::connect, use buildSignature here, since
|
|
1220 |
// QDBusConnection::connect passes false and everything else uses true
|
|
1221 |
QString mname = name;
|
|
1222 |
if (buildSignature && mname.isNull()) {
|
|
1223 |
normalizedName.truncate(normalizedName.indexOf('('));
|
|
1224 |
mname = QString::fromUtf8(normalizedName);
|
|
1225 |
}
|
|
1226 |
key = mname;
|
|
1227 |
key.reserve(interface.length() + 1 + mname.length());
|
|
1228 |
key += QLatin1Char(':');
|
|
1229 |
key += interface;
|
|
1230 |
|
|
1231 |
if (buildSignature) {
|
|
1232 |
hook.signature.clear();
|
|
1233 |
for (int i = 1; i < hook.params.count(); ++i)
|
|
1234 |
if (hook.params.at(i) != QDBusMetaTypeId::message)
|
|
1235 |
hook.signature += QLatin1String( QDBusMetaType::typeToSignature( hook.params.at(i) ) );
|
|
1236 |
}
|
|
1237 |
|
|
1238 |
hook.matchRule = buildMatchRule(service, owner, path, interface, mname, hook.signature);
|
|
1239 |
return true; // connect to this signal
|
|
1240 |
}
|
|
1241 |
|
|
1242 |
void QDBusConnectionPrivate::sendError(const QDBusMessage &msg, QDBusError::ErrorType code)
|
|
1243 |
{
|
|
1244 |
if (code == QDBusError::UnknownMethod) {
|
|
1245 |
QString interfaceMsg;
|
|
1246 |
if (msg.interface().isEmpty())
|
|
1247 |
interfaceMsg = QLatin1String("any interface");
|
|
1248 |
else
|
|
1249 |
interfaceMsg = QString::fromLatin1("interface '%1'").arg(msg.interface());
|
|
1250 |
|
|
1251 |
send(msg.createErrorReply(code,
|
|
1252 |
QString::fromLatin1("No such method '%1' in %2 at object path '%3' "
|
|
1253 |
"(signature '%4')")
|
|
1254 |
.arg(msg.member(), interfaceMsg, msg.path(), msg.signature())));
|
|
1255 |
} else if (code == QDBusError::UnknownInterface) {
|
|
1256 |
send(msg.createErrorReply(QDBusError::UnknownInterface,
|
|
1257 |
QString::fromLatin1("No such interface '%1' at object path '%2'")
|
|
1258 |
.arg(msg.interface(), msg.path())));
|
|
1259 |
} else if (code == QDBusError::UnknownObject) {
|
|
1260 |
send(msg.createErrorReply(QDBusError::UnknownObject,
|
|
1261 |
QString::fromLatin1("No such object path '%1'").arg(msg.path())));
|
|
1262 |
}
|
|
1263 |
}
|
|
1264 |
|
|
1265 |
bool QDBusConnectionPrivate::activateInternalFilters(const ObjectTreeNode &node,
|
|
1266 |
const QDBusMessage &msg)
|
|
1267 |
{
|
|
1268 |
// object may be null
|
|
1269 |
const QString interface = msg.interface();
|
|
1270 |
|
|
1271 |
if (interface.isEmpty() || interface == QLatin1String(DBUS_INTERFACE_INTROSPECTABLE)) {
|
|
1272 |
if (msg.member() == QLatin1String("Introspect") && msg.signature().isEmpty()) {
|
|
1273 |
//qDebug() << "QDBusConnectionPrivate::activateInternalFilters introspect" << msg.d_ptr->msg;
|
|
1274 |
QDBusMessage reply = msg.createReply(qDBusIntrospectObject(node));
|
|
1275 |
send(reply);
|
|
1276 |
return true;
|
|
1277 |
}
|
|
1278 |
|
|
1279 |
if (!interface.isEmpty()) {
|
|
1280 |
sendError(msg, QDBusError::UnknownMethod);
|
|
1281 |
return true;
|
|
1282 |
}
|
|
1283 |
}
|
|
1284 |
|
|
1285 |
if (node.obj && (interface.isEmpty() ||
|
|
1286 |
interface == QLatin1String(DBUS_INTERFACE_PROPERTIES))) {
|
|
1287 |
//qDebug() << "QDBusConnectionPrivate::activateInternalFilters properties" << msg.d_ptr->msg;
|
|
1288 |
if (msg.member() == QLatin1String("Get") && msg.signature() == QLatin1String("ss")) {
|
|
1289 |
QDBusMessage reply = qDBusPropertyGet(node, msg);
|
|
1290 |
send(reply);
|
|
1291 |
return true;
|
|
1292 |
} else if (msg.member() == QLatin1String("Set") && msg.signature() == QLatin1String("ssv")) {
|
|
1293 |
QDBusMessage reply = qDBusPropertySet(node, msg);
|
|
1294 |
send(reply);
|
|
1295 |
return true;
|
|
1296 |
} else if (msg.member() == QLatin1String("GetAll") && msg.signature() == QLatin1String("s")) {
|
|
1297 |
QDBusMessage reply = qDBusPropertyGetAll(node, msg);
|
|
1298 |
send(reply);
|
|
1299 |
return true;
|
|
1300 |
}
|
|
1301 |
|
|
1302 |
if (!interface.isEmpty()) {
|
|
1303 |
sendError(msg, QDBusError::UnknownMethod);
|
|
1304 |
return true;
|
|
1305 |
}
|
|
1306 |
}
|
|
1307 |
|
|
1308 |
return false;
|
|
1309 |
}
|
|
1310 |
|
|
1311 |
void QDBusConnectionPrivate::activateObject(ObjectTreeNode &node, const QDBusMessage &msg,
|
|
1312 |
int pathStartPos)
|
|
1313 |
{
|
|
1314 |
// This is called by QDBusConnectionPrivate::handleObjectCall to place a call to a slot
|
|
1315 |
// on the object.
|
|
1316 |
//
|
|
1317 |
// The call is routed through the adaptor sub-objects if we have any
|
|
1318 |
|
|
1319 |
// object may be null
|
|
1320 |
|
|
1321 |
if (pathStartPos != msg.path().length()) {
|
|
1322 |
node.flags &= ~QDBusConnection::ExportAllSignals;
|
|
1323 |
node.obj = findChildObject(&node, msg.path(), pathStartPos);
|
|
1324 |
if (!node.obj) {
|
|
1325 |
sendError(msg, QDBusError::UnknownObject);
|
|
1326 |
return;
|
|
1327 |
}
|
|
1328 |
}
|
|
1329 |
|
|
1330 |
QDBusAdaptorConnector *connector;
|
|
1331 |
if (node.flags & QDBusConnection::ExportAdaptors &&
|
|
1332 |
(connector = qDBusFindAdaptorConnector(node.obj))) {
|
|
1333 |
int newflags = node.flags | QDBusConnection::ExportAllSlots;
|
|
1334 |
|
|
1335 |
if (msg.interface().isEmpty()) {
|
|
1336 |
// place the call in all interfaces
|
|
1337 |
// let the first one that handles it to work
|
|
1338 |
QDBusAdaptorConnector::AdaptorMap::ConstIterator it =
|
|
1339 |
connector->adaptors.constBegin();
|
|
1340 |
QDBusAdaptorConnector::AdaptorMap::ConstIterator end =
|
|
1341 |
connector->adaptors.constEnd();
|
|
1342 |
|
|
1343 |
for ( ; it != end; ++it)
|
|
1344 |
if (activateCall(it->adaptor, newflags, msg))
|
|
1345 |
return;
|
|
1346 |
} else {
|
|
1347 |
// check if we have an interface matching the name that was asked:
|
|
1348 |
QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
|
|
1349 |
it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(),
|
|
1350 |
msg.interface());
|
|
1351 |
if (it != connector->adaptors.constEnd() && msg.interface() == QLatin1String(it->interface)) {
|
|
1352 |
if (!activateCall(it->adaptor, newflags, msg))
|
|
1353 |
sendError(msg, QDBusError::UnknownMethod);
|
|
1354 |
return;
|
|
1355 |
}
|
|
1356 |
}
|
|
1357 |
}
|
|
1358 |
|
|
1359 |
// no adaptors matched or were exported
|
|
1360 |
// try our standard filters
|
|
1361 |
if (activateInternalFilters(node, msg))
|
|
1362 |
return; // internal filters have already run or an error has been sent
|
|
1363 |
|
|
1364 |
// try the object itself:
|
|
1365 |
if (node.flags & (QDBusConnection::ExportScriptableSlots|QDBusConnection::ExportNonScriptableSlots)) {
|
|
1366 |
bool interfaceFound = true;
|
|
1367 |
if (!msg.interface().isEmpty())
|
|
1368 |
interfaceFound = qDBusInterfaceInObject(node.obj, msg.interface());
|
|
1369 |
|
|
1370 |
if (interfaceFound) {
|
|
1371 |
if (!activateCall(node.obj, node.flags, msg))
|
|
1372 |
sendError(msg, QDBusError::UnknownMethod);
|
|
1373 |
return;
|
|
1374 |
}
|
|
1375 |
}
|
|
1376 |
|
|
1377 |
// nothing matched, send an error code
|
|
1378 |
if (msg.interface().isEmpty())
|
|
1379 |
sendError(msg, QDBusError::UnknownMethod);
|
|
1380 |
else
|
|
1381 |
sendError(msg, QDBusError::UnknownInterface);
|
|
1382 |
}
|
|
1383 |
|
|
1384 |
void QDBusConnectionPrivate::handleObjectCall(const QDBusMessage &msg)
|
|
1385 |
{
|
|
1386 |
// if the msg is external, we were called from inside doDispatch
|
|
1387 |
// that means the dispatchLock mutex is locked
|
|
1388 |
// must not call out to user code in that case
|
|
1389 |
//
|
|
1390 |
// however, if the message is internal, handleMessage was called
|
|
1391 |
// directly and no lock is in place. We can therefore call out to
|
|
1392 |
// user code, if necessary
|
|
1393 |
ObjectTreeNode result;
|
|
1394 |
int usedLength;
|
|
1395 |
QThread *objThread = 0;
|
|
1396 |
QSemaphore sem;
|
|
1397 |
bool semWait;
|
|
1398 |
|
|
1399 |
{
|
|
1400 |
QDBusReadLocker locker(HandleObjectCallAction, this);
|
|
1401 |
if (!findObject(&rootNode, msg.path(), usedLength, result)) {
|
|
1402 |
// qDebug("Call failed: no object found at %s", qPrintable(msg.path()));
|
|
1403 |
sendError(msg, QDBusError::UnknownObject);
|
|
1404 |
return;
|
|
1405 |
}
|
|
1406 |
|
|
1407 |
if (!result.obj) {
|
|
1408 |
// no object -> no threading issues
|
|
1409 |
// it's either going to be an error, or an internal filter
|
|
1410 |
activateObject(result, msg, usedLength);
|
|
1411 |
return;
|
|
1412 |
}
|
|
1413 |
|
|
1414 |
objThread = result.obj->thread();
|
|
1415 |
if (!objThread) {
|
|
1416 |
send(msg.createErrorReply(QDBusError::InternalError,
|
|
1417 |
QString::fromLatin1("Object '%1' (at path '%2')"
|
|
1418 |
" has no thread. Cannot deliver message.")
|
|
1419 |
.arg(result.obj->objectName(), msg.path())));
|
|
1420 |
return;
|
|
1421 |
}
|
|
1422 |
|
|
1423 |
if (!QDBusMessagePrivate::isLocal(msg)) {
|
|
1424 |
// external incoming message
|
|
1425 |
// post it and forget
|
|
1426 |
postEventToThread(HandleObjectCallPostEventAction, result.obj,
|
|
1427 |
new QDBusActivateObjectEvent(QDBusConnection(this), this, result,
|
|
1428 |
usedLength, msg));
|
|
1429 |
return;
|
|
1430 |
} else if (objThread != QThread::currentThread()) {
|
|
1431 |
// synchronize with other thread
|
|
1432 |
postEventToThread(HandleObjectCallPostEventAction, result.obj,
|
|
1433 |
new QDBusActivateObjectEvent(QDBusConnection(this), this, result,
|
|
1434 |
usedLength, msg, &sem));
|
|
1435 |
semWait = true;
|
|
1436 |
} else {
|
|
1437 |
semWait = false;
|
|
1438 |
}
|
|
1439 |
} // release the lock
|
|
1440 |
|
|
1441 |
if (semWait)
|
|
1442 |
SEM_ACQUIRE(HandleObjectCallSemaphoreAction, sem);
|
|
1443 |
else
|
|
1444 |
activateObject(result, msg, usedLength);
|
|
1445 |
}
|
|
1446 |
|
|
1447 |
QDBusActivateObjectEvent::~QDBusActivateObjectEvent()
|
|
1448 |
{
|
|
1449 |
if (!handled) {
|
|
1450 |
// we're being destroyed without delivering
|
|
1451 |
// it means the object was deleted between posting and delivering
|
|
1452 |
QDBusConnectionPrivate *that = QDBusConnectionPrivate::d(connection);
|
|
1453 |
that->sendError(message, QDBusError::UnknownObject);
|
|
1454 |
}
|
|
1455 |
|
|
1456 |
// semaphore releasing happens in ~QMetaCallEvent
|
|
1457 |
}
|
|
1458 |
|
|
1459 |
int QDBusActivateObjectEvent::placeMetaCall(QObject *)
|
|
1460 |
{
|
|
1461 |
QDBusConnectionPrivate *that = QDBusConnectionPrivate::d(connection);
|
|
1462 |
|
|
1463 |
QDBusLockerBase::reportThreadAction(HandleObjectCallPostEventAction,
|
|
1464 |
QDBusLockerBase::BeforeDeliver, that);
|
|
1465 |
that->activateObject(node, message, pathStartPos);
|
|
1466 |
QDBusLockerBase::reportThreadAction(HandleObjectCallPostEventAction,
|
|
1467 |
QDBusLockerBase::AfterDeliver, that);
|
|
1468 |
|
|
1469 |
handled = true;
|
|
1470 |
return -1;
|
|
1471 |
}
|
|
1472 |
|
|
1473 |
void QDBusConnectionPrivate::handleSignal(const QString &key, const QDBusMessage& msg)
|
|
1474 |
{
|
|
1475 |
SignalHookHash::const_iterator it = signalHooks.find(key);
|
|
1476 |
SignalHookHash::const_iterator end = signalHooks.constEnd();
|
|
1477 |
//qDebug("looking for: %s", path.toLocal8Bit().constData());
|
|
1478 |
//qDBusDebug() << signalHooks.keys();
|
|
1479 |
for ( ; it != end && it.key() == key; ++it) {
|
|
1480 |
const SignalHook &hook = it.value();
|
|
1481 |
if (!hook.owner.isEmpty() && hook.owner != msg.service())
|
|
1482 |
continue;
|
|
1483 |
if (!hook.path.isEmpty() && hook.path != msg.path())
|
|
1484 |
continue;
|
|
1485 |
if (!hook.signature.isEmpty() && hook.signature != msg.signature())
|
|
1486 |
continue;
|
|
1487 |
if (hook.signature.isEmpty() && !hook.signature.isNull() && !msg.signature().isEmpty())
|
|
1488 |
continue;
|
|
1489 |
|
|
1490 |
activateSignal(hook, msg);
|
|
1491 |
}
|
|
1492 |
}
|
|
1493 |
|
|
1494 |
void QDBusConnectionPrivate::handleSignal(const QDBusMessage& msg)
|
|
1495 |
{
|
|
1496 |
// We call handlesignal(QString, QDBusMessage) three times:
|
|
1497 |
// one with member:interface
|
|
1498 |
// one with member:
|
|
1499 |
// one with :interface
|
|
1500 |
// This allows us to match signals with wildcards on member or interface
|
|
1501 |
// (but not both)
|
|
1502 |
|
|
1503 |
QString key = msg.member();
|
|
1504 |
key.reserve(key.length() + 1 + msg.interface().length());
|
|
1505 |
key += QLatin1Char(':');
|
|
1506 |
key += msg.interface();
|
|
1507 |
|
|
1508 |
QDBusReadLocker locker(HandleSignalAction, this);
|
|
1509 |
handleSignal(key, msg); // one try
|
|
1510 |
|
|
1511 |
key.truncate(msg.member().length() + 1); // keep the ':'
|
|
1512 |
handleSignal(key, msg); // second try
|
|
1513 |
|
|
1514 |
key = QLatin1Char(':');
|
|
1515 |
key += msg.interface();
|
|
1516 |
handleSignal(key, msg); // third try
|
|
1517 |
}
|
|
1518 |
|
|
1519 |
static dbus_int32_t server_slot = -1;
|
|
1520 |
|
|
1521 |
void QDBusConnectionPrivate::setServer(DBusServer *s, const QDBusErrorInternal &error)
|
|
1522 |
{
|
|
1523 |
if (!s) {
|
|
1524 |
handleError(error);
|
|
1525 |
return;
|
|
1526 |
}
|
|
1527 |
|
|
1528 |
server = s;
|
|
1529 |
mode = ServerMode;
|
|
1530 |
|
|
1531 |
dbus_bool_t data_allocated = q_dbus_server_allocate_data_slot(&server_slot);
|
|
1532 |
if (data_allocated && server_slot < 0)
|
|
1533 |
return;
|
|
1534 |
|
|
1535 |
dbus_bool_t watch_functions_set = q_dbus_server_set_watch_functions(server,
|
|
1536 |
qDBusAddWatch,
|
|
1537 |
qDBusRemoveWatch,
|
|
1538 |
qDBusToggleWatch,
|
|
1539 |
this, 0);
|
|
1540 |
//qDebug() << "watch_functions_set" << watch_functions_set;
|
|
1541 |
Q_UNUSED(watch_functions_set);
|
|
1542 |
|
|
1543 |
dbus_bool_t time_functions_set = q_dbus_server_set_timeout_functions(server,
|
|
1544 |
qDBusAddTimeout,
|
|
1545 |
qDBusRemoveTimeout,
|
|
1546 |
qDBusToggleTimeout,
|
|
1547 |
this, 0);
|
|
1548 |
//qDebug() << "time_functions_set" << time_functions_set;
|
|
1549 |
Q_UNUSED(time_functions_set);
|
|
1550 |
|
|
1551 |
q_dbus_server_set_new_connection_function(server, qDBusNewConnection, this, 0);
|
|
1552 |
|
|
1553 |
dbus_bool_t data_set = q_dbus_server_set_data(server, server_slot, this, 0);
|
|
1554 |
//qDebug() << "data_set" << data_set;
|
|
1555 |
Q_UNUSED(data_set);
|
|
1556 |
}
|
|
1557 |
|
|
1558 |
void QDBusConnectionPrivate::setPeer(DBusConnection *c, const QDBusErrorInternal &error)
|
|
1559 |
{
|
|
1560 |
if (!c) {
|
|
1561 |
handleError(error);
|
|
1562 |
return;
|
|
1563 |
}
|
|
1564 |
|
|
1565 |
connection = c;
|
|
1566 |
mode = PeerMode;
|
|
1567 |
|
|
1568 |
q_dbus_connection_set_exit_on_disconnect(connection, false);
|
|
1569 |
q_dbus_connection_set_watch_functions(connection,
|
|
1570 |
qDBusAddWatch,
|
|
1571 |
qDBusRemoveWatch,
|
|
1572 |
qDBusToggleWatch,
|
|
1573 |
this, 0);
|
|
1574 |
q_dbus_connection_set_timeout_functions(connection,
|
|
1575 |
qDBusAddTimeout,
|
|
1576 |
qDBusRemoveTimeout,
|
|
1577 |
qDBusToggleTimeout,
|
|
1578 |
this, 0);
|
|
1579 |
q_dbus_connection_set_dispatch_status_function(connection, qDBusUpdateDispatchStatus, this, 0);
|
|
1580 |
q_dbus_connection_add_filter(connection,
|
|
1581 |
qDBusSignalFilter,
|
|
1582 |
this, 0);
|
|
1583 |
|
|
1584 |
QMetaObject::invokeMethod(this, "doDispatch", Qt::QueuedConnection);
|
|
1585 |
}
|
|
1586 |
|
|
1587 |
void QDBusConnectionPrivate::setConnection(DBusConnection *dbc, const QDBusErrorInternal &error)
|
|
1588 |
{
|
|
1589 |
if (!dbc) {
|
|
1590 |
handleError(error);
|
|
1591 |
return;
|
|
1592 |
}
|
|
1593 |
|
|
1594 |
connection = dbc;
|
|
1595 |
mode = ClientMode;
|
|
1596 |
|
|
1597 |
q_dbus_connection_set_exit_on_disconnect(connection, false);
|
|
1598 |
q_dbus_connection_set_watch_functions(connection, qDBusAddWatch, qDBusRemoveWatch,
|
|
1599 |
qDBusToggleWatch, this, 0);
|
|
1600 |
q_dbus_connection_set_timeout_functions(connection, qDBusAddTimeout, qDBusRemoveTimeout,
|
|
1601 |
qDBusToggleTimeout, this, 0);
|
|
1602 |
q_dbus_connection_set_dispatch_status_function(connection, qDBusUpdateDispatchStatus, this, 0);
|
|
1603 |
|
|
1604 |
// Initialize the match rules
|
|
1605 |
// We want all messages that have us as destination
|
|
1606 |
// signals don't have destinations, but connectSignal() takes care of them
|
|
1607 |
const char *service = q_dbus_bus_get_unique_name(connection);
|
|
1608 |
if (service) {
|
|
1609 |
QVarLengthArray<char, 56> filter;
|
|
1610 |
filter.append("destination='", 13);
|
|
1611 |
filter.append(service, qstrlen(service));
|
|
1612 |
filter.append("\'\0", 2);
|
|
1613 |
|
|
1614 |
QDBusErrorInternal error;
|
|
1615 |
q_dbus_bus_add_match(connection, filter.constData(), error);
|
|
1616 |
if (handleError(error)) {
|
|
1617 |
closeConnection();
|
|
1618 |
return;
|
|
1619 |
}
|
|
1620 |
|
|
1621 |
baseService = QString::fromUtf8(service);
|
|
1622 |
} else {
|
|
1623 |
qWarning("QDBusConnectionPrivate::SetConnection: Unable to get base service");
|
|
1624 |
}
|
|
1625 |
|
|
1626 |
q_dbus_connection_add_filter(connection, qDBusSignalFilter, this, 0);
|
|
1627 |
|
|
1628 |
//qDebug("base service: %s", service);
|
|
1629 |
|
|
1630 |
// schedule a dispatch:
|
|
1631 |
QMetaObject::invokeMethod(this, "doDispatch", Qt::QueuedConnection);
|
|
1632 |
}
|
|
1633 |
|
|
1634 |
extern "C"{
|
|
1635 |
static void qDBusResultReceived(DBusPendingCall *pending, void *user_data)
|
|
1636 |
{
|
|
1637 |
QDBusPendingCallPrivate *call = reinterpret_cast<QDBusPendingCallPrivate *>(user_data);
|
|
1638 |
Q_ASSERT(call->pending == pending);
|
|
1639 |
Q_UNUSED(pending);
|
|
1640 |
QDBusConnectionPrivate::processFinishedCall(call);
|
|
1641 |
}
|
|
1642 |
}
|
|
1643 |
|
|
1644 |
void QDBusConnectionPrivate::waitForFinished(QDBusPendingCallPrivate *pcall)
|
|
1645 |
{
|
|
1646 |
Q_ASSERT(pcall->pending);
|
|
1647 |
QDBusDispatchLocker locker(PendingCallBlockAction, this);
|
|
1648 |
q_dbus_pending_call_block(pcall->pending);
|
|
1649 |
// QDBusConnectionPrivate::processFinishedCall() is called automatically
|
|
1650 |
}
|
|
1651 |
|
|
1652 |
void QDBusConnectionPrivate::processFinishedCall(QDBusPendingCallPrivate *call)
|
|
1653 |
{
|
|
1654 |
QDBusConnectionPrivate *connection = const_cast<QDBusConnectionPrivate *>(call->connection);
|
|
1655 |
|
|
1656 |
QDBusMessage &msg = call->replyMessage;
|
|
1657 |
if (call->pending) {
|
|
1658 |
// decode the message
|
|
1659 |
DBusMessage *reply = q_dbus_pending_call_steal_reply(call->pending);
|
|
1660 |
msg = QDBusMessagePrivate::fromDBusMessage(reply);
|
|
1661 |
q_dbus_message_unref(reply);
|
|
1662 |
}
|
|
1663 |
qDBusDebug() << QThread::currentThread() << "got message reply (async):" << msg;
|
|
1664 |
|
|
1665 |
// Check if the reply has the expected signature
|
|
1666 |
call->checkReceivedSignature();
|
|
1667 |
|
|
1668 |
if (!call->receiver.isNull() && call->methodIdx != -1 && msg.type() == QDBusMessage::ReplyMessage) {
|
|
1669 |
// Deliver the return values of a remote function call.
|
|
1670 |
//
|
|
1671 |
// There is only one connection and it is specified by idx
|
|
1672 |
// The slot must have the same parameter types that the message does
|
|
1673 |
// The slot may have less parameters than the message
|
|
1674 |
// The slot may optionally have one final parameter that is QDBusMessage
|
|
1675 |
// The slot receives read-only copies of the message (i.e., pass by value or by const-ref)
|
|
1676 |
|
|
1677 |
QDBusCallDeliveryEvent *e = prepareReply(connection, call->receiver, call->methodIdx,
|
|
1678 |
call->metaTypes, msg);
|
|
1679 |
if (e)
|
|
1680 |
connection->postEventToThread(MessageResultReceivedAction, call->receiver, e);
|
|
1681 |
else
|
|
1682 |
qDBusDebug() << "Deliver failed!";
|
|
1683 |
}
|
|
1684 |
|
|
1685 |
// Are there any watchers?
|
|
1686 |
if (call->watcherHelper)
|
|
1687 |
call->watcherHelper->emitSignals(msg, call->sentMessage);
|
|
1688 |
|
|
1689 |
if (msg.type() == QDBusMessage::ErrorMessage)
|
|
1690 |
emit connection->callWithCallbackFailed(QDBusError(msg), call->sentMessage);
|
|
1691 |
|
|
1692 |
if (call->pending)
|
|
1693 |
q_dbus_pending_call_unref(call->pending);
|
|
1694 |
call->pending = 0;
|
|
1695 |
|
|
1696 |
if (call->autoDelete)
|
|
1697 |
delete call;
|
|
1698 |
}
|
|
1699 |
|
|
1700 |
int QDBusConnectionPrivate::send(const QDBusMessage& message)
|
|
1701 |
{
|
|
1702 |
if (QDBusMessagePrivate::isLocal(message))
|
|
1703 |
return -1; // don't send; the reply will be retrieved by the caller
|
|
1704 |
// through the d_ptr->localReply link
|
|
1705 |
|
|
1706 |
QDBusError error;
|
|
1707 |
DBusMessage *msg = QDBusMessagePrivate::toDBusMessage(message, &error);
|
|
1708 |
if (!msg) {
|
|
1709 |
if (message.type() == QDBusMessage::MethodCallMessage)
|
|
1710 |
qWarning("QDBusConnection: error: could not send message to service \"%s\" path \"%s\" interface \"%s\" member \"%s\": %s",
|
|
1711 |
qPrintable(message.service()), qPrintable(message.path()),
|
|
1712 |
qPrintable(message.interface()), qPrintable(message.member()),
|
|
1713 |
qPrintable(error.message()));
|
|
1714 |
else if (message.type() == QDBusMessage::SignalMessage)
|
|
1715 |
qWarning("QDBusConnection: error: could not send signal path \"%s\" interface \"%s\" member \"%s\": %s",
|
|
1716 |
qPrintable(message.path()), qPrintable(message.interface()),
|
|
1717 |
qPrintable(message.member()),
|
|
1718 |
qPrintable(error.message()));
|
|
1719 |
else
|
|
1720 |
qWarning("QDBusConnection: error: could not send %s message to service \"%s\": %s",
|
|
1721 |
message.type() == QDBusMessage::ReplyMessage ? "reply" :
|
|
1722 |
message.type() == QDBusMessage::ErrorMessage ? "error" :
|
|
1723 |
"invalid", qPrintable(message.service()),
|
|
1724 |
qPrintable(error.message()));
|
|
1725 |
lastError = error;
|
|
1726 |
return 0;
|
|
1727 |
}
|
|
1728 |
|
|
1729 |
q_dbus_message_set_no_reply(msg, true); // the reply would not be delivered to anything
|
|
1730 |
|
|
1731 |
qDBusDebug() << QThread::currentThread() << "sending message (no reply):" << message;
|
|
1732 |
checkThread();
|
|
1733 |
bool isOk = q_dbus_connection_send(connection, msg, 0);
|
|
1734 |
int serial = 0;
|
|
1735 |
if (isOk)
|
|
1736 |
serial = q_dbus_message_get_serial(msg);
|
|
1737 |
|
|
1738 |
q_dbus_message_unref(msg);
|
|
1739 |
return serial;
|
|
1740 |
}
|
|
1741 |
|
|
1742 |
QDBusMessage QDBusConnectionPrivate::sendWithReply(const QDBusMessage &message,
|
|
1743 |
int sendMode, int timeout)
|
|
1744 |
{
|
|
1745 |
checkThread();
|
|
1746 |
if ((sendMode == QDBus::BlockWithGui || sendMode == QDBus::Block)
|
|
1747 |
&& isServiceRegisteredByThread(message.service()))
|
|
1748 |
// special case for synchronous local calls
|
|
1749 |
return sendWithReplyLocal(message);
|
|
1750 |
|
|
1751 |
if (!QCoreApplication::instance() || sendMode == QDBus::Block) {
|
|
1752 |
QDBusError err;
|
|
1753 |
DBusMessage *msg = QDBusMessagePrivate::toDBusMessage(message, &err);
|
|
1754 |
if (!msg) {
|
|
1755 |
qWarning("QDBusConnection: error: could not send message to service \"%s\" path \"%s\" interface \"%s\" member \"%s\": %s",
|
|
1756 |
qPrintable(message.service()), qPrintable(message.path()),
|
|
1757 |
qPrintable(message.interface()), qPrintable(message.member()),
|
|
1758 |
qPrintable(err.message()));
|
|
1759 |
lastError = err;
|
|
1760 |
return QDBusMessage::createError(err);
|
|
1761 |
}
|
|
1762 |
|
|
1763 |
qDBusDebug() << QThread::currentThread() << "sending message (blocking):" << message;
|
|
1764 |
QDBusErrorInternal error;
|
|
1765 |
DBusMessage *reply = q_dbus_connection_send_with_reply_and_block(connection, msg, timeout, error);
|
|
1766 |
|
|
1767 |
q_dbus_message_unref(msg);
|
|
1768 |
|
|
1769 |
if (!!error) {
|
|
1770 |
lastError = err = error;
|
|
1771 |
return QDBusMessage::createError(err);
|
|
1772 |
}
|
|
1773 |
|
|
1774 |
QDBusMessage amsg = QDBusMessagePrivate::fromDBusMessage(reply);
|
|
1775 |
q_dbus_message_unref(reply);
|
|
1776 |
qDBusDebug() << QThread::currentThread() << "got message reply (blocking):" << amsg;
|
|
1777 |
|
|
1778 |
return amsg;
|
|
1779 |
} else { // use the event loop
|
|
1780 |
QDBusPendingCallPrivate *pcall = sendWithReplyAsync(message, timeout);
|
|
1781 |
Q_ASSERT(pcall);
|
|
1782 |
|
|
1783 |
if (pcall->replyMessage.type() != QDBusMessage::InvalidMessage) {
|
|
1784 |
pcall->watcherHelper = new QDBusPendingCallWatcherHelper;
|
|
1785 |
QEventLoop loop;
|
|
1786 |
loop.connect(pcall->watcherHelper, SIGNAL(reply(QDBusMessage)), SLOT(quit()));
|
|
1787 |
loop.connect(pcall->watcherHelper, SIGNAL(error(QDBusError,QDBusMessage)), SLOT(quit()));
|
|
1788 |
|
|
1789 |
// enter the event loop and wait for a reply
|
|
1790 |
loop.exec(QEventLoop::ExcludeUserInputEvents | QEventLoop::WaitForMoreEvents);
|
|
1791 |
}
|
|
1792 |
|
|
1793 |
QDBusMessage reply = pcall->replyMessage;
|
|
1794 |
lastError = reply; // set or clear error
|
|
1795 |
|
|
1796 |
delete pcall;
|
|
1797 |
return reply;
|
|
1798 |
}
|
|
1799 |
}
|
|
1800 |
|
|
1801 |
QDBusMessage QDBusConnectionPrivate::sendWithReplyLocal(const QDBusMessage &message)
|
|
1802 |
{
|
|
1803 |
qDBusDebug() << QThread::currentThread() << "sending message via local-loop:" << message;
|
|
1804 |
|
|
1805 |
QDBusMessage localCallMsg = QDBusMessagePrivate::makeLocal(*this, message);
|
|
1806 |
bool handled = handleMessage(localCallMsg);
|
|
1807 |
|
|
1808 |
if (!handled) {
|
|
1809 |
QString interface = message.interface();
|
|
1810 |
if (interface.isEmpty())
|
|
1811 |
interface = QLatin1String("<no-interface>");
|
|
1812 |
return QDBusMessage::createError(QDBusError::InternalError,
|
|
1813 |
QString::fromLatin1("Internal error trying to call %1.%2 at %3 (signature '%4'")
|
|
1814 |
.arg(interface, message.member(),
|
|
1815 |
message.path(), message.signature()));
|
|
1816 |
}
|
|
1817 |
|
|
1818 |
// if the message was handled, there might be a reply
|
|
1819 |
QDBusMessage localReplyMsg = QDBusMessagePrivate::makeLocalReply(*this, localCallMsg);
|
|
1820 |
if (localReplyMsg.type() == QDBusMessage::InvalidMessage) {
|
|
1821 |
qWarning("QDBusConnection: cannot call local method '%s' at object %s (with signature '%s') "
|
|
1822 |
"on blocking mode", qPrintable(message.member()), qPrintable(message.path()),
|
|
1823 |
qPrintable(message.signature()));
|
|
1824 |
return QDBusMessage::createError(
|
|
1825 |
QDBusError(QDBusError::InternalError,
|
|
1826 |
QLatin1String("local-loop message cannot have delayed replies")));
|
|
1827 |
}
|
|
1828 |
|
|
1829 |
// there is a reply
|
|
1830 |
qDBusDebug() << QThread::currentThread() << "got message via local-loop:" << localReplyMsg;
|
|
1831 |
return localReplyMsg;
|
|
1832 |
}
|
|
1833 |
|
|
1834 |
QDBusPendingCallPrivate *QDBusConnectionPrivate::sendWithReplyAsync(const QDBusMessage &message,
|
|
1835 |
int timeout)
|
|
1836 |
{
|
|
1837 |
if (isServiceRegisteredByThread(message.service())) {
|
|
1838 |
// special case for local calls
|
|
1839 |
QDBusPendingCallPrivate *pcall = new QDBusPendingCallPrivate;
|
|
1840 |
pcall->sentMessage = message;
|
|
1841 |
pcall->replyMessage = sendWithReplyLocal(message);
|
|
1842 |
pcall->connection = this;
|
|
1843 |
|
|
1844 |
return pcall;
|
|
1845 |
}
|
|
1846 |
|
|
1847 |
checkThread();
|
|
1848 |
QDBusPendingCallPrivate *pcall = new QDBusPendingCallPrivate;
|
|
1849 |
pcall->sentMessage = message;
|
|
1850 |
pcall->ref = 0;
|
|
1851 |
|
|
1852 |
QDBusError error;
|
|
1853 |
DBusMessage *msg = QDBusMessagePrivate::toDBusMessage(message, &error);
|
|
1854 |
if (!msg) {
|
|
1855 |
qWarning("QDBusConnection: error: could not send message to service \"%s\" path \"%s\" interface \"%s\" member \"%s\": %s",
|
|
1856 |
qPrintable(message.service()), qPrintable(message.path()),
|
|
1857 |
qPrintable(message.interface()), qPrintable(message.member()),
|
|
1858 |
qPrintable(error.message()));
|
|
1859 |
pcall->replyMessage = QDBusMessage::createError(error);
|
|
1860 |
lastError = error;
|
|
1861 |
return pcall;
|
|
1862 |
}
|
|
1863 |
|
|
1864 |
qDBusDebug() << QThread::currentThread() << "sending message (async):" << message;
|
|
1865 |
DBusPendingCall *pending = 0;
|
|
1866 |
|
|
1867 |
QDBusDispatchLocker locker(SendWithReplyAsyncAction, this);
|
|
1868 |
if (q_dbus_connection_send_with_reply(connection, msg, &pending, timeout)) {
|
|
1869 |
if (pending) {
|
|
1870 |
q_dbus_message_unref(msg);
|
|
1871 |
|
|
1872 |
pcall->pending = pending;
|
|
1873 |
pcall->connection = this;
|
|
1874 |
q_dbus_pending_call_set_notify(pending, qDBusResultReceived, pcall, 0);
|
|
1875 |
|
|
1876 |
return pcall;
|
|
1877 |
} else {
|
|
1878 |
// we're probably disconnected at this point
|
|
1879 |
lastError = error = QDBusError(QDBusError::Disconnected, QLatin1String("Not connected to server"));
|
|
1880 |
}
|
|
1881 |
} else {
|
|
1882 |
lastError = error = QDBusError(QDBusError::NoMemory, QLatin1String("Out of memory"));
|
|
1883 |
}
|
|
1884 |
|
|
1885 |
q_dbus_message_unref(msg);
|
|
1886 |
pcall->replyMessage = QDBusMessage::createError(error);
|
|
1887 |
return pcall;
|
|
1888 |
}
|
|
1889 |
|
|
1890 |
int QDBusConnectionPrivate::sendWithReplyAsync(const QDBusMessage &message, QObject *receiver,
|
|
1891 |
const char *returnMethod, const char *errorMethod,
|
|
1892 |
int timeout)
|
|
1893 |
{
|
|
1894 |
QDBusPendingCallPrivate *pcall = sendWithReplyAsync(message, timeout);
|
|
1895 |
Q_ASSERT(pcall);
|
|
1896 |
|
|
1897 |
// has it already finished (dispatched locally)?
|
|
1898 |
if (pcall->replyMessage.type() == QDBusMessage::ReplyMessage) {
|
|
1899 |
pcall->setReplyCallback(receiver, returnMethod);
|
|
1900 |
processFinishedCall(pcall);
|
|
1901 |
delete pcall;
|
|
1902 |
return 1;
|
|
1903 |
}
|
|
1904 |
|
|
1905 |
// has it already finished and is an error reply message?
|
|
1906 |
if (pcall->replyMessage.type() == QDBusMessage::ErrorMessage) {
|
|
1907 |
if (errorMethod) {
|
|
1908 |
pcall->watcherHelper = new QDBusPendingCallWatcherHelper;
|
|
1909 |
connect(pcall->watcherHelper, SIGNAL(error(QDBusError,QDBusMessage)), receiver, errorMethod);
|
|
1910 |
pcall->watcherHelper->moveToThread(thread());
|
|
1911 |
}
|
|
1912 |
processFinishedCall(pcall);
|
|
1913 |
delete pcall;
|
|
1914 |
return 1;
|
|
1915 |
}
|
|
1916 |
|
|
1917 |
// has it already finished with error?
|
|
1918 |
if (pcall->replyMessage.type() != QDBusMessage::InvalidMessage) {
|
|
1919 |
delete pcall;
|
|
1920 |
return 0;
|
|
1921 |
}
|
|
1922 |
|
|
1923 |
pcall->autoDelete = true;
|
|
1924 |
pcall->ref.ref();
|
|
1925 |
|
|
1926 |
pcall->setReplyCallback(receiver, returnMethod);
|
|
1927 |
if (errorMethod) {
|
|
1928 |
pcall->watcherHelper = new QDBusPendingCallWatcherHelper;
|
|
1929 |
connect(pcall->watcherHelper, SIGNAL(error(QDBusError,QDBusMessage)), receiver, errorMethod);
|
|
1930 |
pcall->watcherHelper->moveToThread(thread());
|
|
1931 |
}
|
|
1932 |
|
|
1933 |
return 1;
|
|
1934 |
}
|
|
1935 |
|
|
1936 |
void QDBusConnectionPrivate::connectSignal(const QString &key, const SignalHook &hook)
|
|
1937 |
{
|
|
1938 |
signalHooks.insertMulti(key, hook);
|
|
1939 |
connect(hook.obj, SIGNAL(destroyed(QObject*)), SLOT(objectDestroyed(QObject*)),
|
|
1940 |
Qt::DirectConnection);
|
|
1941 |
|
|
1942 |
MatchRefCountHash::iterator it = matchRefCounts.find(hook.matchRule);
|
|
1943 |
|
|
1944 |
if (it != matchRefCounts.end()) { // Match already present
|
|
1945 |
it.value() = it.value() + 1;
|
|
1946 |
return;
|
|
1947 |
}
|
|
1948 |
|
|
1949 |
matchRefCounts.insert(hook.matchRule, 1);
|
|
1950 |
|
|
1951 |
if (connection) {
|
|
1952 |
qDBusDebug("Adding rule: %s", hook.matchRule.constData());
|
|
1953 |
QDBusErrorInternal error;
|
|
1954 |
q_dbus_bus_add_match(connection, hook.matchRule, error);
|
|
1955 |
if (!!error) {
|
|
1956 |
QDBusError qerror = error;
|
|
1957 |
qWarning("QDBusConnectionPrivate::connectSignal: received error from D-Bus server "
|
|
1958 |
"while connecting signal to %s::%s: %s (%s)",
|
|
1959 |
hook.obj->metaObject()->className(),
|
|
1960 |
hook.obj->metaObject()->method(hook.midx).signature(),
|
|
1961 |
qPrintable(qerror.name()), qPrintable(qerror.message()));
|
|
1962 |
Q_ASSERT(false);
|
|
1963 |
}
|
|
1964 |
}
|
|
1965 |
}
|
|
1966 |
|
|
1967 |
QDBusConnectionPrivate::SignalHookHash::Iterator
|
|
1968 |
QDBusConnectionPrivate::disconnectSignal(SignalHookHash::Iterator &it)
|
|
1969 |
{
|
|
1970 |
const SignalHook &hook = it.value();
|
|
1971 |
|
|
1972 |
bool erase = false;
|
|
1973 |
MatchRefCountHash::iterator i = matchRefCounts.find(hook.matchRule);
|
|
1974 |
if (i == matchRefCounts.end()) {
|
|
1975 |
qWarning("QDBusConnectionPrivate::disconnectSignal: MatchRule not found in matchRefCounts!!");
|
|
1976 |
} else {
|
|
1977 |
if (i.value() == 1) {
|
|
1978 |
erase = true;
|
|
1979 |
matchRefCounts.erase(i);
|
|
1980 |
}
|
|
1981 |
else {
|
|
1982 |
i.value() = i.value() - 1;
|
|
1983 |
}
|
|
1984 |
}
|
|
1985 |
|
|
1986 |
// we don't care about errors here
|
|
1987 |
if (connection && erase) {
|
|
1988 |
qDBusDebug("Removing rule: %s", hook.matchRule.constData());
|
|
1989 |
q_dbus_bus_remove_match(connection, hook.matchRule, NULL);
|
|
1990 |
}
|
|
1991 |
|
|
1992 |
return signalHooks.erase(it);
|
|
1993 |
}
|
|
1994 |
|
|
1995 |
void QDBusConnectionPrivate::registerObject(const ObjectTreeNode *node)
|
|
1996 |
{
|
|
1997 |
connect(node->obj, SIGNAL(destroyed(QObject*)), SLOT(objectDestroyed(QObject*)),
|
|
1998 |
Qt::DirectConnection);
|
|
1999 |
|
|
2000 |
if (node->flags & (QDBusConnection::ExportAdaptors
|
|
2001 |
| QDBusConnection::ExportScriptableSignals
|
|
2002 |
| QDBusConnection::ExportNonScriptableSignals)) {
|
|
2003 |
QDBusAdaptorConnector *connector = qDBusCreateAdaptorConnector(node->obj);
|
|
2004 |
|
|
2005 |
if (node->flags & (QDBusConnection::ExportScriptableSignals
|
|
2006 |
| QDBusConnection::ExportNonScriptableSignals)) {
|
|
2007 |
connector->disconnectAllSignals(node->obj);
|
|
2008 |
connector->connectAllSignals(node->obj);
|
|
2009 |
}
|
|
2010 |
|
|
2011 |
// disconnect and reconnect to avoid duplicates
|
|
2012 |
connector->disconnect(SIGNAL(relaySignal(QObject*,const QMetaObject*,int,QVariantList)),
|
|
2013 |
this, SLOT(relaySignal(QObject*,const QMetaObject*,int,QVariantList)));
|
|
2014 |
connect(connector, SIGNAL(relaySignal(QObject*,const QMetaObject*,int,QVariantList)),
|
|
2015 |
this, SLOT(relaySignal(QObject*,const QMetaObject*,int,QVariantList)),
|
|
2016 |
Qt::DirectConnection);
|
|
2017 |
}
|
|
2018 |
}
|
|
2019 |
|
|
2020 |
void QDBusConnectionPrivate::connectRelay(const QString &service, const QString &owner,
|
|
2021 |
const QString &path, const QString &interface,
|
|
2022 |
QDBusAbstractInterface *receiver,
|
|
2023 |
const char *signal)
|
|
2024 |
{
|
|
2025 |
// this function is called by QDBusAbstractInterface when one of its signals is connected
|
|
2026 |
// we set up a relay from D-Bus into it
|
|
2027 |
SignalHook hook;
|
|
2028 |
QString key;
|
|
2029 |
|
|
2030 |
if (!prepareHook(hook, key, service, owner, path, interface, QString(), receiver, signal,
|
|
2031 |
QDBusAbstractInterface::staticMetaObject.methodCount(), true))
|
|
2032 |
return; // don't connect
|
|
2033 |
|
|
2034 |
// add it to our list:
|
|
2035 |
QDBusWriteLocker locker(ConnectRelayAction, this);
|
|
2036 |
SignalHookHash::ConstIterator it = signalHooks.find(key);
|
|
2037 |
SignalHookHash::ConstIterator end = signalHooks.constEnd();
|
|
2038 |
for ( ; it != end && it.key() == key; ++it) {
|
|
2039 |
const SignalHook &entry = it.value();
|
|
2040 |
if (entry.service == hook.service &&
|
|
2041 |
entry.owner == hook.owner &&
|
|
2042 |
entry.path == hook.path &&
|
|
2043 |
entry.signature == hook.signature &&
|
|
2044 |
entry.obj == hook.obj &&
|
|
2045 |
entry.midx == hook.midx)
|
|
2046 |
return; // already there, no need to re-add
|
|
2047 |
}
|
|
2048 |
|
|
2049 |
connectSignal(key, hook);
|
|
2050 |
}
|
|
2051 |
|
|
2052 |
void QDBusConnectionPrivate::disconnectRelay(const QString &service, const QString &owner,
|
|
2053 |
const QString &path, const QString &interface,
|
|
2054 |
QDBusAbstractInterface *receiver,
|
|
2055 |
const char *signal)
|
|
2056 |
{
|
|
2057 |
// this function is called by QDBusAbstractInterface when one of its signals is disconnected
|
|
2058 |
// we remove relay from D-Bus into it
|
|
2059 |
SignalHook hook;
|
|
2060 |
QString key;
|
|
2061 |
|
|
2062 |
if (!prepareHook(hook, key, service, owner, path, interface, QString(), receiver, signal,
|
|
2063 |
QDBusAbstractInterface::staticMetaObject.methodCount(), true))
|
|
2064 |
return; // don't connect
|
|
2065 |
|
|
2066 |
// remove it from our list:
|
|
2067 |
QDBusWriteLocker locker(DisconnectRelayAction, this);
|
|
2068 |
SignalHookHash::Iterator it = signalHooks.find(key);
|
|
2069 |
SignalHookHash::Iterator end = signalHooks.end();
|
|
2070 |
for ( ; it != end && it.key() == key; ++it) {
|
|
2071 |
const SignalHook &entry = it.value();
|
|
2072 |
if (entry.service == hook.service &&
|
|
2073 |
entry.owner == hook.owner &&
|
|
2074 |
entry.path == hook.path &&
|
|
2075 |
entry.signature == hook.signature &&
|
|
2076 |
entry.obj == hook.obj &&
|
|
2077 |
entry.midx == hook.midx) {
|
|
2078 |
// found it
|
|
2079 |
disconnectSignal(it);
|
|
2080 |
return;
|
|
2081 |
}
|
|
2082 |
}
|
|
2083 |
|
|
2084 |
qWarning("QDBusConnectionPrivate::disconnectRelay called for a signal that was not found");
|
|
2085 |
}
|
|
2086 |
|
|
2087 |
QString QDBusConnectionPrivate::getNameOwner(const QString& serviceName)
|
|
2088 |
{
|
|
2089 |
if (QDBusUtil::isValidUniqueConnectionName(serviceName))
|
|
2090 |
return serviceName;
|
|
2091 |
if (!connection || !QDBusUtil::isValidBusName(serviceName))
|
|
2092 |
return QString();
|
|
2093 |
|
|
2094 |
QDBusMessage msg = QDBusMessage::createMethodCall(QLatin1String(DBUS_SERVICE_DBUS),
|
|
2095 |
QLatin1String(DBUS_PATH_DBUS), QLatin1String(DBUS_INTERFACE_DBUS),
|
|
2096 |
QLatin1String("GetNameOwner"));
|
|
2097 |
QDBusMessagePrivate::setParametersValidated(msg, true);
|
|
2098 |
msg << serviceName;
|
|
2099 |
QDBusMessage reply = sendWithReply(msg, QDBus::Block);
|
|
2100 |
if (reply.type() == QDBusMessage::ReplyMessage)
|
|
2101 |
return reply.arguments().at(0).toString();
|
|
2102 |
return QString();
|
|
2103 |
}
|
|
2104 |
|
|
2105 |
QDBusMetaObject *
|
|
2106 |
QDBusConnectionPrivate::findMetaObject(const QString &service, const QString &path,
|
|
2107 |
const QString &interface, QDBusError &error)
|
|
2108 |
{
|
|
2109 |
// service must be a unique connection name
|
|
2110 |
if (!interface.isEmpty()) {
|
|
2111 |
QDBusReadLocker locker(FindMetaObject1Action, this);
|
|
2112 |
QDBusMetaObject *mo = cachedMetaObjects.value(interface, 0);
|
|
2113 |
if (mo)
|
|
2114 |
return mo;
|
|
2115 |
}
|
|
2116 |
|
|
2117 |
// introspect the target object
|
|
2118 |
QDBusMessage msg = QDBusMessage::createMethodCall(service, path,
|
|
2119 |
QLatin1String(DBUS_INTERFACE_INTROSPECTABLE),
|
|
2120 |
QLatin1String("Introspect"));
|
|
2121 |
QDBusMessagePrivate::setParametersValidated(msg, true);
|
|
2122 |
|
|
2123 |
QDBusMessage reply = sendWithReply(msg, QDBus::Block);
|
|
2124 |
|
|
2125 |
// it doesn't exist yet, we have to create it
|
|
2126 |
QDBusWriteLocker locker(FindMetaObject2Action, this);
|
|
2127 |
QDBusMetaObject *mo = 0;
|
|
2128 |
if (!interface.isEmpty())
|
|
2129 |
mo = cachedMetaObjects.value(interface, 0);
|
|
2130 |
if (mo)
|
|
2131 |
// maybe it got created when we switched from read to write lock
|
|
2132 |
return mo;
|
|
2133 |
|
|
2134 |
QString xml;
|
|
2135 |
if (reply.type() == QDBusMessage::ReplyMessage) {
|
|
2136 |
if (reply.signature() == QLatin1String("s"))
|
|
2137 |
// fetch the XML description
|
|
2138 |
xml = reply.arguments().at(0).toString();
|
|
2139 |
} else {
|
|
2140 |
error = reply;
|
|
2141 |
lastError = error;
|
|
2142 |
if (reply.type() != QDBusMessage::ErrorMessage || error.type() != QDBusError::UnknownMethod)
|
|
2143 |
return 0; // error
|
|
2144 |
}
|
|
2145 |
|
|
2146 |
// release the lock and return
|
|
2147 |
QDBusMetaObject *result = QDBusMetaObject::createMetaObject(interface, xml,
|
|
2148 |
cachedMetaObjects, error);
|
|
2149 |
lastError = error;
|
|
2150 |
return result;
|
|
2151 |
}
|
|
2152 |
|
|
2153 |
void QDBusConnectionPrivate::registerService(const QString &serviceName)
|
|
2154 |
{
|
|
2155 |
QDBusWriteLocker locker(RegisterServiceAction, this);
|
|
2156 |
serviceNames.append(serviceName);
|
|
2157 |
}
|
|
2158 |
|
|
2159 |
void QDBusConnectionPrivate::unregisterService(const QString &serviceName)
|
|
2160 |
{
|
|
2161 |
QDBusWriteLocker locker(UnregisterServiceAction, this);
|
|
2162 |
serviceNames.removeAll(serviceName);
|
|
2163 |
}
|
|
2164 |
|
|
2165 |
bool QDBusConnectionPrivate::isServiceRegisteredByThread(const QString &serviceName) const
|
|
2166 |
{
|
|
2167 |
if (serviceName == baseService)
|
|
2168 |
return true;
|
|
2169 |
QStringList copy = serviceNames;
|
|
2170 |
return copy.contains(serviceName);
|
|
2171 |
}
|
|
2172 |
|
|
2173 |
void QDBusConnectionPrivate::postEventToThread(int action, QObject *object, QEvent *ev)
|
|
2174 |
{
|
|
2175 |
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::BeforePost, this);
|
|
2176 |
QCoreApplication::postEvent(object, ev);
|
|
2177 |
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterPost, this);
|
|
2178 |
}
|
|
2179 |
|
|
2180 |
QT_END_NAMESPACE
|