On 28/02/12 12:31, Oleg Kalnichevski wrote:
On Tue, 2012-02-28 at 10:50 +0000, Mark Thornton wrote:
I am trying to implement a pipelined client using 4.1.4 (Async client
and core 4.2 aren't yet GA). It would appear that
AsyncNHttpClientHandler does not permit pipelining.
No, it does not. The expect-continue handshake support and request
pipelining are pretty much mutually exclusive. Default protocol handlers
shipped with HttpCore implement expect-continue handshaking as it is
required by the HTTP/1.1 specification, while request pipelining is
optional.
Not quite exclusive --- the expect handshake will force a pipeline flush
but pipelining can be used when there is no expect-continue outstanding.
Obviously it requires more work and additional synchronization between
send and receive parts. Will this change in 4.2?
Hope this helps Oleg
Thanks very much, it does give me confidence to proceed. I am slightly
tempted to extend the protocol to permit out of order responses.
regards,
Mark Thornton
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