NameserCarrier.h

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/*
 * Copyright (C) 2006-2020 Istituto Italiano di Tecnologia (IIT)
 * Copyright (C) 2006-2010 RobotCub Consortium
 * All rights reserved.
 *
 * This software may be modified and distributed under the terms of the
 * BSD-3-Clause license. See the accompanying LICENSE file for details.
 */
 
#ifndef YARP_OS_IMPL_NAMESERCARRIER_H
#define YARP_OS_IMPL_NAMESERCARRIER_H
 
#include <yarp/os/TwoWayStream.h>
#include <yarp/os/impl/TcpCarrier.h>
 
 
namespace yarp {
namespace os {
namespace impl {
 
class NameserTwoWayStream :
        public TwoWayStream,
        InputStream
{
private:
    TwoWayStream* delegate;
    std::string pendingRead;
    std::string swallowRead;
 
public:
    NameserTwoWayStream(TwoWayStream* delegate);
 
    virtual ~NameserTwoWayStream();
 
    InputStream& getInputStream() override;
    OutputStream& getOutputStream() override;
    const Contact& getLocalAddress() const override;
    const Contact& getRemoteAddress() const override;
 
    bool isOk() const override;
    void reset() override;
    void close() override;
    void beginPacket() override;
    void endPacket() override;
 
    using yarp::os::InputStream::read;
    yarp::conf::ssize_t read(yarp::os::Bytes& b) override;
};
 
 
class NameserCarrier :
        public TcpCarrier
{
private:
    bool firstSend;
 
public:
    NameserCarrier();
 
    std::string getName() const override;
    std::string getSpecifierName() const;
 
    Carrier* create() const override;
 
    bool checkHeader(const Bytes& header) override;
    void getHeader(Bytes& header) const override;
    bool requireAck() const override;
    bool isTextMode() const override;
    bool supportReply() const override;
    bool canEscape() const override;
    bool sendHeader(ConnectionState& proto) override;
    bool expectSenderSpecifier(ConnectionState& proto) override;
    bool expectIndex(ConnectionState& proto) override;
    bool sendAck(ConnectionState& proto) override;
    bool expectAck(ConnectionState& proto) override;
    bool respondToHeader(ConnectionState& proto) override;
    bool expectReplyToHeader(ConnectionState& proto) override;
    bool write(ConnectionState& proto, SizedWriter& writer) override;
};
 
} // namespace impl
} // namespace os
} // namespace yarp
 
#endif // YARP_OS_IMPL_NAMESERCARRIER_H