StreamConnectionReader.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_STREAMCONNECTIONREADER_H
#define YARP_OS_IMPL_STREAMCONNECTIONREADER_H
 
#include <yarp/os/Bottle.h>
#include <yarp/os/Bytes.h>
#include <yarp/os/ConnectionReader.h>
#include <yarp/os/Contact.h>
#include <yarp/os/InputStream.h>
#include <yarp/os/NetFloat32.h>
#include <yarp/os/NetFloat64.h>
#include <yarp/os/NetInt16.h>
#include <yarp/os/NetInt32.h>
#include <yarp/os/NetInt64.h>
#include <yarp/os/NetInt8.h>
#include <yarp/os/NetType.h>
#include <yarp/os/Route.h>
#include <yarp/os/StringInputStream.h>
#include <yarp/os/TwoWayStream.h>
 
namespace yarp {
namespace os {
namespace impl {
 
class BufferedConnectionWriter;
class Protocol;
 
class YARP_os_impl_API StreamConnectionReader :
        public ConnectionReader
{
public:
    StreamConnectionReader();
    virtual ~StreamConnectionReader();
 
    void reset(yarp::os::InputStream& in, TwoWayStream* str, const Route& route, size_t len, bool textMode, bool bareMode = false);
    void setProtocol(Protocol* protocol);
    void suppressReply();
    bool dropRequested();
 
    virtual bool expectBlock(yarp::os::Bytes& b);
#ifndef YARP_NO_DEPRECATED // Since YARP 3.2
    using ConnectionReader::expectString;
    virtual std::string expectString(int len);
#endif
    virtual std::string expectLine();
    virtual void flushWriter();
    virtual void setReference(yarp::os::Portable* obj);
 
    /**** OVERRIDES ****/
    bool setSize(size_t len) override;
    size_t getSize() const override;
    bool pushInt(int x) override;
    std::int8_t expectInt8() override;
    std::int16_t expectInt16() override;
    std::int32_t expectInt32() override;
    std::int64_t expectInt64() override;
    yarp::conf::float32_t expectFloat32() override;
    yarp::conf::float64_t expectFloat64() override;
    bool expectBlock(char* data, size_t len) override;
    std::string expectText(const char terminatingChar) override;
    bool isTextMode() const override;
    bool isBareMode() const override;
    bool convertTextMode() override;
    yarp::os::ConnectionWriter* getWriter() override;
    yarp::os::Contact getRemoteContact() const override;
    yarp::os::Contact getLocalContact() const override;
    bool isValid() const override;
    bool isError() const override;
    bool isActive() const override;
    yarp::os::Portable* getReference() const override;
    yarp::os::Bytes readEnvelope() override;
    void requestDrop() override;
    const yarp::os::Searchable& getConnectionModifiers() const override;
    void setParentConnectionReader(ConnectionReader* parentConnectionReader) override;
 
private:
    bool isGood();
 
    template <typename T, typename NetT>
    T expectType();
 
    BufferedConnectionWriter* writer;
    StringInputStream altStream;
    yarp::os::InputStream* in;
    TwoWayStream* str;
    Protocol* protocol;
    size_t messageLen;
    bool textMode;
    bool bareMode;
    bool valid;
    bool err;
    bool shouldDrop;
    bool writePending;
    Route route;
    yarp::os::Portable* ref;
    yarp::os::Bottle config;
    bool convertedTextMode;
    bool pushedIntFlag;
    int pushedInt;
    ConnectionReader* parentConnectionReader;
};
 
} // namespace impl
} // namespace os
} // namespace yarp
 
#endif // YARP_OS_IMPL_STREAMCONNECTIONREADER_H