// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.

#pragma once

#include <cstdint>

#define FNET_NOID ((uint32_t)-1)

class FNET_IOComponent;
class FNET_Connector;
class FNET_Connection;
class FNET_Channel;
class FNET_IServerAdapter;
class FNET_IExecutable;
/**
 * This class indicates the context of a packet. It is external to the
 * packet class because a single packet may occur in many contexts at
 * the same time (broadcast/multicast).
 **/
class FNET_Context
{
public:
    FNET_Context() : _value()                    { _value.VOIDP   = nullptr;  }
    FNET_Context(uint32_t value) : _value()      { _value.INT     = value; }
    FNET_Context(void *value) : _value()         { _value.VOIDP   = value; }
    FNET_Context(FNET_Channel *value) : _value() { _value.CHANNEL = value; }

    FNET_Context(FNET_IOComponent *value) : _value()
    { _value.IOC = value; }
    FNET_Context(FNET_Connector *value) : _value()
    { _value.CONNECTOR = value; }
    FNET_Context(FNET_Connection *value) : _value()
    { _value.CONNECTION = value; }
    FNET_Context(FNET_IServerAdapter *value) : _value()
    { _value.SERVER_ADAPTER = value; }
    FNET_Context(FNET_IExecutable *value) : _value()
    { _value.EXECUTABLE = value; }

    union {
        uint32_t             INT;
        void                *VOIDP;
        FNET_Channel        *CHANNEL;
        FNET_IOComponent    *IOC;
        FNET_Connector      *CONNECTOR;
        FNET_Connection     *CONNECTION;
        FNET_IServerAdapter *SERVER_ADAPTER;
        FNET_IExecutable    *EXECUTABLE;
    } _value;

    void Print(uint32_t indent = 0);
};