using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;

namespace FileSendReceive
{

    [ServiceContract(CallbackContract = typeof(IFileHost))]
    public interface IFileHost
    {
        [OperationContract(IsOneWay = true)]
        void SendFileToAll(string name, byte[] fa);
    }

    [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
    class FileHost : IFileHost
    {
        Form1 mfp;

        public FileHost(Form1 mfp)
        {
            this.mfp = mfp;
        }

        public void SendFileToAll(string name, byte[] fa)
        {
            mfp.ReceiveFile(name, fa);
        }
    }
}