server

func Ack ¶

func Ack(opts capnp.CallOptions)

Ack acknowledges delivery of a server call, allowing other methods to be called on the server. It is intended to be used inside the implementation of a server function. Calling Ack on options that aren't from a server method implementation is a no-op.

Example:

func (my *myServer) MyMethod(call schema.MyServer_myMethod) error {
	server.Ack(call.Options)
	// ... do long-running operation ...
	return nil
}

Ack need not be the first call in a function nor is it required. Since the function's return is also an acknowledgment of delivery, short functions can return without calling Ack. However, since clients will not return an Answer until the delivery is acknowledged, it is advisable to ack early.

func New ¶

func New(methods []Method, closer Closer) capnp.Client

New returns a client that makes calls to a set of methods. If closer is nil then the client's Close is a no-op. The server guarantees message delivery order by blocking each call on the return or acknowledgment of the previous call. See the Ack function for more details.