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Tom Lane 3e7fdcffd6 Fix WaitLatch() to return promptly when the requested timeout expires. 
If the sleep is interrupted by a signal, we must recompute the remaining
time to wait; otherwise, a steady stream of non-wait-terminating interrupts
could delay return from WaitLatch indefinitely.  This has been shown to be
a problem for the autovacuum launcher, and there may well be other places
now or in the future with similar issues.  So we'd better make the function
robust, even though this'll add at least one gettimeofday call per wait.

Back-patch to 9.2.  We might eventually need to fix 9.1 as well, but the
code is quite different there, and the usage of WaitLatch in 9.1 is so
limited that it's not clearly important to do so.

Reported and diagnosed by Jeff Janes, though I rewrote his patch rather
heavily.
2012-11-08 20:04:48 -05:00
config Rename USE_INLINE to PG_USE_INLINE 2012-10-09 11:17:33 -03:00
contrib In pg_upgrade, set synchronous_commit=off for the new cluster, to 2012-11-06 14:28:57 -05:00
doc Teach pg_basebackup and pg_receivexlog to reply to server keepalives. 2012-11-08 10:28:52 +02:00
src Fix WaitLatch() to return promptly when the requested timeout expires. 2012-11-08 20:04:48 -05:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure restore permission bits 2012-10-09 12:08:13 -03:00
configure.in Autoconfiscate selection of 64-bit int type for 64-bit large object API. 2012-10-07 21:52:43 -04:00
COPYRIGHT Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
GNUmakefile.in Make init-po and update-po recursive make targets 2012-06-29 14:01:54 +03:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -04:00

README 

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	http://www.postgresql.org/download

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.