pgsql: Fix WaitLatchOrSocket to handle EOF on socket correctly. - Mailing list pgsql-committers

From Tom Lane
Subject pgsql: Fix WaitLatchOrSocket to handle EOF on socket correctly.
Date
Msg-id E1STJ4T-0007wP-UG@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Fix WaitLatchOrSocket to handle EOF on socket correctly.

When using poll(), EOF on a socket is reported with the POLLHUP not
POLLIN flag (at least on Linux).  WaitLatchOrSocket failed to check
this bit, causing it to go into a busy-wait loop if EOF occurs.
We earlier fixed the same mistake in the test for the state of the
postmaster_alive socket, but missed it for the caller-supplied socket.
Fortunately, this error is new in 9.2, since 9.1 only had a select()
based code path not a poll() based one.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/31ad6553646c81f3ce8fccf8aef1a1134a7864c7

Modified Files
--------------
src/backend/port/unix_latch.c |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)


pgsql-committers by date:

Previous
From: pgsql@postgresql.org
Date:
Subject: pgsql: Tag refs/tags/REL9_2_BETA1 was created
Next
From: Peter Eisentraut
Date:
Subject: pgsql: Remove unused AC_SUBST variables