namespace ZB.MOM.WW.OtOpcUa.Driver.Ab.Transport.Cip;

/// <summary>A path to a CIP message router: connected (Forward Open) or unconnected (UCMM). Task 9
/// implements it; Task 10's scheduler and the native adapters consume it.</summary>
public interface ICipChannel
{
    /// <summary>Largest CIP request (service byte through end of data) one call may carry.</summary>
    int MaxRequestBytes { get; }

    /// <summary>Send one CIP request and return the raw CIP reply bytes (reply-service byte first).
    /// Throws <see cref="AbTransportException"/> on transport failure or timeout.</summary>
    Task<ReadOnlyMemory<byte>> SendAsync(ReadOnlyMemory<byte> cipRequest, CancellationToken cancellationToken);
}