Interface Message.GotHeadersCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

Message

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface Message.GotHeadersCallback
extends FunctionPointer

Functional interface declaration of the GotHeadersCallback callback.

See Also:

• run()

Method Summary

Modifier and Type	Method	Description
void	run()	Emitted after receiving the Status-Line and response headers.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment) method.
default void	upcall(MemorySegment sourceMessage)	The upcall method is called from native code.

Method Details

run

void run()

Emitted after receiving the Status-Line and response headers.

See also Message.addHeaderHandler(String, String, Callback) and Message.addStatusCodeHandler(String, int, Callback), which can be used to connect to a subset of emissions of this signal.

If you cancel or requeue msg while processing this signal, then the current HTTP I/O will be stopped after this signal emission finished, and msg's connection will be closed. (If you need to requeue a message--eg, after handling authentication or redirection--it is usually better to requeue it from a Message::got-body handler rather than a Message::got_headers handler, so that the existing HTTP connection can be reused.)

upcall

default void upcall(MemorySegment sourceMessage)

The upcall method is called from native code. The parameters are marshaled and run() is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer