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Get rid of not-very-portable fcntl(F_SETLK) mechanism for locking the Unix

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socket file, in favor of having an ordinary lockfile beside the socket file.
Clean up a few robustness problems in the lockfile code.  If postmaster is
going to reject a connection request based on database state, it will now
tell you so before authentication exchange not after.  (Of course, a failure
after is still possible if conditions change meanwhile, but this makes life
easier for a yet-to-be-written pg_ping utility.)
This commit is contained in:
Tom Lane
2000-11-29 20:59:54 +00:00
parent 1efd7330cb
commit 792b0f4666
10 changed files with 498 additions and 566 deletions
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4
src/backend/utils/misc/guc.c
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@ -4,7 +4,7 @@
* Support for grand unified configuration scheme, including SET
* command, configuration file, and command line options.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.23 2000/11/25 04:13:17 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.24 2000/11/29 20:59:53 tgl Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@ -319,7 +319,7 @@ ConfigureNamesString[] =
{"unix_socket_directory", PGC_POSTMASTER, &UnixSocketDir,
"", NULL},
{"virtual_host", PGC_POSTMASTER, &Virtual_host,
{"virtual_host", PGC_POSTMASTER, &VirtualHost,
"", NULL},
{NULL, 0, NULL, NULL, NULL}