GlobalConfig.NetworkEventAvailable

Description

Defines the callback delegate which you can use to get a notification when the host (defined by hostID) has a network event. The callback is called for all event types except NetworkEventType.Nothing.

See Also: NetworkEventType

This callback will be called from the IO thread. If you execute a long operation from this callback it will affect your IO operation performance, therefore you should return from these operations as soon as possible.

using System;
using UnityEngine;
using UnityEngine.Networking;

public class Test : MonoBehaviour
{
    static int receiveCallbackOld = 0;
    static int receiveCallbackNew = 0;
    static int recHostId = -1;

    //...
    public static void ReceiveCallback(int hostId)
    {
        ++receiveCallbackNew;   //Notify main thread that ReceiveFromHost(hostId, ...) should be called, because there is incoming event waiting to read
        recHostId = hostId;
    }

    void Start()
    {
        GlobalConfig config = new GlobalConfig();
        config.NetworkEventAvailable = ReceiveCallback;

        //....
    }

    void Update()
    {
        int recConnectionId = 0;
        int recChannelId = -1;
        var recArray = new byte[1400];
        int recSize = 0;
        byte error;
        if (receiveCallbackNew != receiveCallbackOld)
        {
            receiveCallbackNew = receiveCallbackOld;
            var networkEvent = NetworkTransport.ReceiveFromHost(recHostId, out recConnectionId, out recChannelId, recArray, (ushort)recArray.Length, out recSize, out error);
            Debug.Assert(networkEvent != NetworkEventType.Nothing);
        }
    }
}