face.hpp

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#pragma once
 
#include "ndn/common.hpp"
#include <functional>
 
namespace ndn {
 
using PacketCallback = std::function<void(FaceId faceId, const uint8_t* data, size_t len)>;
 
class Face {
public:
    virtual ~Face() = default;
 
    virtual FaceId id() const = 0;
 
    virtual Error start() = 0;
 
    virtual void stop() = 0;
    virtual Error send(const uint8_t* data, size_t len) = 0;
 
    virtual Error sendTo(FaceId destFace, const uint8_t* data, size_t len) = 0;
 
    virtual Error broadcast(const uint8_t* data, size_t len) = 0;
    virtual size_t maxPayloadSize() const = 0;
 
    void setPacketCallback(PacketCallback callback) { packetCallback_ = callback; }
 
protected:
    void onPacketReceived(FaceId faceId, const uint8_t* data, size_t len) {
        if (packetCallback_) {
            packetCallback_(faceId, data, len);
        }
    }
 
    PacketCallback packetCallback_;  
};
 
}  // namespace ndn