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Motivation:
The multiplexer from SwiftNIO HTTP/2 required that the first write on
each stream matched the order in which the streams were created.
Violating this led to a connection error; all in-flight and subsequent
RPCs on that connection would fail. Some of our users noticed this
(#912). SwiftNIO HTTP/2 recently reworked the API around how streams
are created: HTTP/2 stream channels are no longer created with a stream
ID and now deliver the frame payload to the channel pipeline rather than
the entire HTTP/2 frame. This allows for a stream ID to be assigned to a
stream when it attempts to flush its first write, rather than when the
stream is created.
Modifications:
and outbound-out types for
_GRPCClientChannelHandler
as well as afew smaller changes elsewhere.
Result:
ID ordering rules