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- /*
- * MIT License
- *
- * Copyright (c) 2019 Alexey Edelev <semlanik@gmail.com>
- *
- * This file is part of QtProtobuf project https://git.semlanik.org/semlanik/qtprotobuf
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this
- * software and associated documentation files (the "Software"), to deal in the Software
- * without restriction, including without limitation the rights to use, copy, modify,
- * merge, publish, distribute, sublicense, and/or sell copies of the Software, and
- * to permit persons to whom the Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies
- * or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
- * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
- * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
- #pragma once
- #include <QObject>
- #include <QMutex>
- #include <functional>
- #include <memory>
- #include "qabstractgrpcclient.h"
- #include "qtgrpcglobal.h"
- namespace QtProtobuf {
- /*!
- * \ingroup QtGrpc
- * \private
- * \brief The QGrpcAsyncOperationBase class implements common logic to
- * handle communication in Grpc channel.
- */
- class Q_GRPC_EXPORT QGrpcAsyncOperationBase : public QObject
- {
- Q_OBJECT
- public:
- /*!
- * \brief Reads message from raw byte array stored in QGrpcCallReply
- * \return Copy of deserialized message or non-initialized message in case of exceptional situation
- */
- template <typename T>
- T read() {
- QMutexLocker locker(&m_asyncLock);
- T value;
- auto client = static_cast<QAbstractGrpcClient*>(parent());
- if (client) {
- client->tryDeserialize(value, m_data);
- }
- return value;
- }
- /*!
- * \brief Interface for implementation of QAbstractGrpcChannel. Should be used to write raw data from channel to
- * reply
- * \param data Raw data received from channel
- */
- void setData(const QByteArray &data)
- {
- QMutexLocker locker(&m_asyncLock);
- m_data = data;
- }
- virtual void abort() = 0;
- signals:
- /*!
- * \brief The signal indicates the end of communication for this call. If signal emitted by
- * stream this means that stream is succesfully closed either by client or server.
- */
- void finished();
- /*!
- * \brief The signal is emitted when error happend in channel or during serialization
- * \param[out] status received from gRPC channel
- */
- void error(const QtProtobuf::QGrpcStatus &status);
- protected:
- //! \private
- QGrpcAsyncOperationBase(QAbstractGrpcClient *parent) : QObject(parent) {}
- //! \private
- virtual ~QGrpcAsyncOperationBase();
- private:
- QGrpcAsyncOperationBase();
- Q_DISABLE_COPY_MOVE(QGrpcAsyncOperationBase)
- friend class QAbstractGrpcClient;
- QByteArray m_data;
- QMutex m_asyncLock;
- };
- }
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