ConnectionWriter.h

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/*
 * Copyright (C) 2006-2019 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_CONNECTIONWRITER_H
#define YARP_OS_CONNECTIONWRITER_H

#include <yarp/conf/numeric.h>

#include <yarp/os/api.h>

#include <string>

namespace yarp {
namespace os {
class ConnectionReader;
class PortReader;
class PortWriter;
class Portable;
class SizedWriter;
class OutputStream;
} // namespace os
} // namespace yarp


namespace yarp {
namespace os {

class YARP_OS_API ConnectionWriter
{
public:
    virtual ~ConnectionWriter();

    virtual void appendBlock(const char* data, size_t len) = 0;

    YARP_DEPRECATED_INTERNAL_MSG("Use appendInt32 instead") // Since YARP 3.0.0
    virtual void appendInt(int data) final
    {
        appendInt32(static_cast<std::int32_t>(data));
    }

    virtual void appendInt8(std::int8_t data) = 0;

    virtual void appendInt16(std::int16_t data) = 0;

    virtual void appendInt32(std::int32_t data) = 0;

    virtual void appendInt64(std::int64_t data) = 0;

    YARP_DEPRECATED_INTERNAL_MSG("Use appendFloat64 instead") // Since YARP 3.0.0
    virtual void appendDouble(double data)
    {
        appendFloat64(static_cast<yarp::conf::float64_t>(data));
    }

    virtual void appendFloat32(yarp::conf::float32_t data) = 0;

    virtual void appendFloat64(yarp::conf::float64_t data) = 0;

    virtual void appendString(const char* str, int terminate = '\n') = 0;

    virtual void appendExternalBlock(const char* data, size_t len) = 0;

    virtual bool isTextMode() const = 0;

    virtual bool isBareMode() const = 0;

    virtual void declareSizes(int argc, int* argv) = 0;

    virtual void setReplyHandler(PortReader& reader) = 0;

    virtual void setReference(Portable* obj) = 0;


    virtual bool convertTextMode() = 0;


    virtual bool isValid() const = 0;

    virtual bool isActive() const = 0;

    virtual bool isError() const = 0;


    virtual void requestDrop() = 0;

    virtual bool isNull() const;


    virtual SizedWriter* getBuffer() const = 0;


    virtual void appendRawString(const std::string& str)
    {
        appendInt32(static_cast<std::int32_t>(str.length()));
        appendBlock((char*)str.c_str(), str.length());
    }

    static ConnectionWriter* createBufferedConnectionWriter();

    static bool writeToStream(PortWriter& portable, OutputStream& os);
};

} // namespace os
} // namespace yarp

#endif // YARP_OS_CONNECTIONWRITER_H