Github user mgoulish commented on the issue:
https://github.com/apache/qpid-proton/pull/99
I have updated to use Andrew's cleaner sequence_cmp() idea, and added a new
change: preventing sign-extension from pn_sequence_t to uintptr_t in the calls
to pn_hash_put() and pn_hash_get(). This sign extension appears to be
happening in one pathway but not the other, so that , when we wrap around to
negative p_sequence_t values, pn_hash_get() and pn_hash_put() are getting
different hash values.
I know how this sounds -- but with this change my test got through the 2^31
barrier for the first time ever.
It sounds like heresy -- but -- eppur si muove.
This is probably not the end of the story -- I had runaway memory
consumption later, but the test got to 2.25 billion messages before I had to
kill it. Well past the 2^32 barrier, which == 2.147 billion.
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