| 1 | // Copyright (C) 2022 The Qt Company Ltd. |
|---|---|
| 2 | // Copyright (C) 2019 Alexey Edelev <semlanik@gmail.com> |
| 3 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 4 | |
| 5 | #ifndef QGRPCOPERATION_H |
| 6 | #define QGRPCOPERATION_H |
| 7 | |
| 8 | #include <QtGrpc/qgrpcstatus.h> |
| 9 | #include <QtGrpc/qtgrpcglobal.h> |
| 10 | |
| 11 | #include <QtProtobuf/qtprotobuftypes.h> |
| 12 | |
| 13 | #include <QtCore/qhash.h> |
| 14 | #include <QtCore/qobject.h> |
| 15 | #include <QtCore/qstringfwd.h> |
| 16 | |
| 17 | #include <optional> |
| 18 | |
| 19 | QT_BEGIN_NAMESPACE |
| 20 | |
| 21 | class QGrpcOperationContext; |
| 22 | class QGrpcOperationPrivate; |
| 23 | |
| 24 | class Q_GRPC_EXPORT QGrpcOperation : public QObject |
| 25 | { |
| 26 | Q_OBJECT |
| 27 | public: |
| 28 | ~QGrpcOperation() override; |
| 29 | |
| 30 | template <typename T, QtProtobuf::if_protobuf_message<T> = true> |
| 31 | std::optional<T> read() const |
| 32 | { |
| 33 | std::optional<T> r(std::in_place); |
| 34 | if (!read(&*r)) |
| 35 | r.reset(); |
| 36 | return r; |
| 37 | } |
| 38 | bool read(QProtobufMessage *message) const; |
| 39 | |
| 40 | [[nodiscard]] const QHash<QByteArray, QByteArray> &metadata() const & noexcept; |
| 41 | void metadata() const && = delete; |
| 42 | |
| 43 | [[nodiscard]] QLatin1StringView method() const noexcept; |
| 44 | |
| 45 | [[nodiscard]] bool isFinished() const noexcept; |
| 46 | |
| 47 | Q_SIGNALS: |
| 48 | void finished(const QGrpcStatus &status); |
| 49 | |
| 50 | public Q_SLOTS: |
| 51 | void cancel(); |
| 52 | |
| 53 | protected: |
| 54 | explicit QGrpcOperation(std::shared_ptr<QGrpcOperationContext> operationContext, |
| 55 | QObject *parent = nullptr); |
| 56 | |
| 57 | [[nodiscard]] const QGrpcOperationContext &context() const & noexcept; |
| 58 | [[nodiscard]] QGrpcOperationContext &context() & noexcept |
| 59 | { |
| 60 | return const_cast<QGrpcOperationContext &>(std::as_const(t&: *this).context()); |
| 61 | } |
| 62 | void context() && = delete; |
| 63 | |
| 64 | private: |
| 65 | Q_DISABLE_COPY_MOVE(QGrpcOperation) |
| 66 | Q_DECLARE_PRIVATE(QGrpcOperation) |
| 67 | |
| 68 | public: |
| 69 | bool event(QEvent *event) override; |
| 70 | }; |
| 71 | |
| 72 | QT_END_NAMESPACE |
| 73 | |
| 74 | #endif // QGRPCOPERATION_H |
| 75 |