| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 Ford Motor Company |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtRemoteObjects module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
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| ** information to ensure the GNU General Public License requirements will |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QREMOTEOBJECTPENDINGCALL_H |
| #define QREMOTEOBJECTPENDINGCALL_H |
| |
| #include <QtRemoteObjects/qtremoteobjectglobal.h> |
| |
| #include <QtCore/qvariant.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QRemoteObjectPendingCallWatcherPrivate; |
| class QRemoteObjectPendingCallData; |
| |
| class Q_REMOTEOBJECTS_EXPORT QRemoteObjectPendingCall |
| { |
| public: |
| enum Error { |
| NoError, |
| InvalidMessage |
| }; |
| |
| QRemoteObjectPendingCall(); |
| QRemoteObjectPendingCall(const QRemoteObjectPendingCall &other); |
| ~QRemoteObjectPendingCall(); |
| |
| QRemoteObjectPendingCall &operator=(const QRemoteObjectPendingCall &other); |
| |
| QVariant returnValue() const; |
| QRemoteObjectPendingCall::Error error() const; |
| |
| bool isFinished() const; |
| |
| bool waitForFinished(int timeout = 30000); |
| |
| static QRemoteObjectPendingCall fromCompletedCall(const QVariant &returnValue); |
| |
| protected: |
| QRemoteObjectPendingCall(QRemoteObjectPendingCallData *dd); |
| |
| /// Shared data, note: might be null |
| QExplicitlySharedDataPointer<QRemoteObjectPendingCallData> d; |
| |
| private: |
| friend class QConnectedReplicaImplementation; |
| }; |
| |
| QT_END_NAMESPACE |
| Q_DECLARE_METATYPE(QRemoteObjectPendingCall) |
| QT_BEGIN_NAMESPACE |
| |
| class Q_REMOTEOBJECTS_EXPORT QRemoteObjectPendingCallWatcher: public QObject, public QRemoteObjectPendingCall |
| { |
| Q_OBJECT |
| |
| public: |
| QRemoteObjectPendingCallWatcher(const QRemoteObjectPendingCall &call, QObject *parent = nullptr); |
| ~QRemoteObjectPendingCallWatcher() override; |
| |
| bool isFinished() const; |
| |
| void waitForFinished(); |
| |
| Q_SIGNALS: |
| void finished(QRemoteObjectPendingCallWatcher *self); |
| |
| private: |
| Q_DECLARE_PRIVATE(QRemoteObjectPendingCallWatcher) |
| }; |
| |
| template<typename T> |
| class QRemoteObjectPendingReply : public QRemoteObjectPendingCall |
| { |
| public: |
| typedef T Type; |
| |
| QRemoteObjectPendingReply() = default; |
| explicit QRemoteObjectPendingReply(const QRemoteObjectPendingCall &call) |
| : QRemoteObjectPendingCall(call) |
| { |
| } |
| |
| QRemoteObjectPendingReply &operator=(const QRemoteObjectPendingCall &other) |
| { |
| QRemoteObjectPendingCall::operator=(other); |
| return *this; |
| } |
| |
| Type returnValue() const |
| { |
| return qvariant_cast<Type>(QRemoteObjectPendingCall::returnValue()); |
| } |
| |
| }; |
| |
| // NOTE: manual expansion of Q_DECLARE_METATYPE_TEMPLATE_1ARG, minus the IsSequentialContainer |
| template <typename T> |
| struct QMetaTypeId< QRemoteObjectPendingReply<T> > |
| { |
| enum { |
| Defined = QMetaTypeId2<T>::Defined |
| }; |
| static int qt_metatype_id() |
| { |
| static QBasicAtomicInt metatype_id = Q_BASIC_ATOMIC_INITIALIZER(0); |
| if (const int id = metatype_id.loadRelaxed()) |
| return id; |
| const char *tName = QMetaType::typeName(qMetaTypeId<T>()); |
| Q_ASSERT(tName); |
| const int tNameLen = int(qstrlen(tName)); |
| QByteArray typeName; |
| typeName.reserve(int(sizeof("QRemoteObjectPendingReply")) + 1 + tNameLen + 1 + 1); |
| typeName.append("QRemoteObjectPendingReply", int(sizeof("QRemoteObjectPendingReply")) - 1) |
| .append('<').append(tName, tNameLen); |
| if (typeName.endsWith('>')) |
| typeName.append(' '); |
| typeName.append('>'); |
| const int newId = qRegisterNormalizedMetaType< QRemoteObjectPendingReply<T> >( |
| typeName, |
| reinterpret_cast< QRemoteObjectPendingReply<T> *>(quintptr(-1))); |
| metatype_id.storeRelease(newId); |
| return newId; |
| } |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |