module Svc {
    interface FrameAccumulator {
        @ Receive raw bytes from a ComInterface (e.g. ComStub)
        guarded input port dataIn: Svc.ComDataWithContext

        @ Port for sending an extracted frame out
        output port dataOut: Svc.ComDataWithContext

        @ Port for returning ownership of buffers received on dataIn
        output port dataReturnOut: Svc.ComDataWithContext

        @ Port receiving back ownership of buffers sent on frameOut
        sync input port dataReturnIn: Svc.ComDataWithContext
    }
}