pub const REQUEST_CANCELLED: u64 = _ /* 1u64 */;Expand description
The application error code a request stream is reset with when the
requester abandons it: CANCELLED, 0x1.
Draft-23 has no UNSUBSCRIBE or FETCH_CANCEL. Cancelling a request is
resetting the bidirectional stream it was made on, and CANCELLED is the
code draft-23 Section 12.5 assigns for “The stream was cancelled by either
endpoint” — see StreamResetErrorCode::Cancelled.
Taken from the codec’s own registry rather than written as a literal so a
renumbering in a later draft cannot be missed here.
This is what RequestStream::cancel uses when no code is chosen for it,
and what RequestStream’s Drop sends.