Tom Lane 90e61df813 Fix treatment of *lpNumberOfBytesRecvd == 0: that's a completion condition. ... pgwin32_recv() has treated a non-error return of zero bytes from WSARecv() as being a reason to block ever since the current implementation was introduced in commit a4c40f140d. However, so far as one can tell from Microsoft's documentation, that is just wrong: what it means is graceful connection closure (in stream protocols) or receipt of a zero-length message (in message protocols), and neither case should result in blocking here. The only reason the code worked at all was that control then fell into the retry loop, which did *not* treat zero bytes specially, so we'd get out after only wasting some cycles. But as of 9.5 we do not normally reach the retry loop and so the bug is exposed, as reported by Shay Rojansky and diagnosed by Andres Freund. Remove the unnecessary test on the byte count, and rearrange the code in the retry loop so that it looks identical to the initial sequence. Back-patch to 9.5. The code is wrong all the way back, AFAICS, but since it's relatively harmless in earlier branches we'll leave it alone.		2016-01-03 13:56:29 -05:00
..
backend	Fix treatment of *lpNumberOfBytesRecvd == 0: that's a completion condition.	2016-01-03 13:56:29 -05:00
bin	Teach pg_dump to quote reloption values safely.	2016-01-02 19:04:45 -05:00
common	Update copyright for 2016	2016-01-02 13:33:40 -05:00
include	Update copyright for 2016	2016-01-02 13:33:40 -05:00
interfaces	Update copyright for 2016	2016-01-02 13:33:40 -05:00
makefiles	Remove support for Unix systems without the POSIX signal APIs.	2015-08-31 12:56:10 -04:00
pl	Update copyright for 2016	2016-01-02 13:33:40 -05:00
port	Update copyright for 2016	2016-01-02 13:33:40 -05:00
template	Remove some remains from Alpha support removal	2015-10-29 16:40:14 -04:00
test	Update copyright for 2016	2016-01-02 14:19:48 -05:00
timezone	Update copyright for 2016	2016-01-02 13:33:40 -05:00
tools	Make copyright.pl cope with nonstandard case choices in copyright notices.	2016-01-02 14:45:21 -05:00
tutorial	Update copyright for 2016	2016-01-02 13:33:40 -05:00
.gitignore
bcc32.mak
DEVELOPERS
Makefile
Makefile.global.in	Make prove_installcheck remove the old log directory, if any.	2015-10-11 20:36:07 -04:00
Makefile.shlib
nls-global.mk
win32.mak