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Review request for qpid.
Bugs: PROTON-668
https://issues.apache.org/jira/browse/PROTON-668
Repository: qpid
Description
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This describes my best guess of balancing convenience for the developer versus
performance. Ultimately, with the exception of stickiness between completion
ports and sockets, which prevents moving a socket between or out of a pn_io_t,
any Posix behavior can probably be mimicked in Windows, but at a performance
penalty.
With these restrictions, third party event loops are supported. Proton event
loops can also accommodate external non-sockets if that is useful (if dispensed
with, that makes Windows code easier). Multi-threaded IO as currently used in
Dispatch is also supported.
It is worth noting Bozo's points that the interface doesn't always make sense
for multithreaded ops: pn_io_error() and pn_io_wouldblock().
Finally, it should be noted that the Windows code has some way to go to satisfy
the above, but understanding the intended supported capabilities needs to come
first.
Diffs
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http://svn.apache.org/repos/asf/qpid/proton/trunk/proton-c/include/proton/io.h
1627716
Diff: https://reviews.apache.org/r/26075/diff/
Testing
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N/A
Thanks,
Cliff Jansen
