Junxiao Shi
103 lines
2.0 KiB
C++
103 lines
2.0 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (C) 2014 Named Data Networking Project
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* See COPYING for copyright and distribution information.
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*/
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#ifndef NFD_FACE_FACE_H
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#define NFD_FACE_FACE_H
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#include "common.hpp"
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#include "core/event-emitter.hpp"
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namespace nfd {
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/** \class FaceId
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* \brief identifies a face
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*/
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typedef int FaceId;
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const FaceId INVALID_FACEID = -1;
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const std::size_t MAX_NDN_PACKET_SIZE = 8800;
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/** \class Face
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* \brief represents a face
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*/
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class Face : noncopyable, public enable_shared_from_this<Face>
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{
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public:
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Face();
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virtual
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~Face();
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FaceId
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getId() const;
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/// fires when an Interest is received
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EventEmitter<const Interest&> onReceiveInterest;
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/// fires when a Data is received
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EventEmitter<const Data&> onReceiveData;
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/// fires when face disconnects or fails to perform properly
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EventEmitter<const std::string& /*reason*/> onFail;
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/// send an Interest
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virtual void
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sendInterest(const Interest& interest) = 0;
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/// send a Data
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virtual void
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sendData(const Data& data) = 0;
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/** \brief Get whether underlying communicate is up
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* In this base class this property is always true.
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*/
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virtual bool
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isUp() const;
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/** \brief Set the description
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* This is typically invoked by mgmt on set description command
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*/
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virtual void
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setDescription(const std::string& description);
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/// Get the description
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virtual const std::string&
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getDescription() const;
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/** \brief Get whether packets sent this Face may reach multiple peers
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* In this base class this property is always false.
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*/
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virtual bool
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isMultiAccess() const;
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/// Get whether the face has opted in for local control header
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virtual bool
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isLocalControlHeaderEnabled() const;
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protected:
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// void
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// receiveInterest();
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// void
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// receiveData();
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private:
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FaceId
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setId(FaceId faceId);
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private:
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FaceId m_id;
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std::string m_description;
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// allow setting FaceId
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friend class Forwarder;
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};
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} // namespace nfd
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#endif // NFD_FACE_FACE_H
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