Robert Haas 4efe26cbd3 shm_mq: Third attempt at fixing nowait behavior in shm_mq_receive. ... Commit a1480ec1d3 purported to fix the problems with commit b2ccb5f4e6, but it didn't completely fix them. The problem is that the checks were performed in the wrong order, leading to a race condition. If the sender attached, sent a message, and detached after the receiver called shm_mq_get_sender and before the receiver called shm_mq_counterparty_gone, we'd incorrectly return SHM_MQ_DETACHED before all messages were read. Repair by reversing the order of operations, and add a long comment explaining why this new logic is (hopefully) correct.		2015-11-03 09:12:52 -05:00
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buffer	Allow per-tablespace effective_io_concurrency	2015-09-08 12:51:42 -03:00
file	Remove special cases for ETXTBSY from new fsync'ing logic.	2015-05-29 15:11:36 -04:00
freespace	Update copyright for 2015	2015-01-06 11:43:47 -05:00
ipc	shm_mq: Third attempt at fixing nowait behavior in shm_mq_receive.	2015-11-03 09:12:52 -05:00
large_object	Use FLEXIBLE_ARRAY_MEMBER in struct varlena.	2015-02-20 16:51:53 -05:00
lmgr	Fix serialization anomalies due to race conditions on INSERT.	2015-10-31 14:43:34 -05:00
page	pgindent run for 9.5	2015-05-23 21:35:49 -04:00
smgr	pgindent run for 9.5	2015-05-23 21:35:49 -04:00
Makefile	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00