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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2009-03-04 13:56:40 +0000 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2009-03-04 13:56:40 +0000 |
| commit | fb7df896fc56e5503a00db1931e12d2275b34031 (patch) | |
| tree | e61dc721f051e0427372be4c019173386a433664 /src/backend/access/transam/xlog.c | |
| parent | 820984ba05b786280bafa382154eec64554f632c (diff) | |
| download | postgresql-fb7df896fc56e5503a00db1931e12d2275b34031.tar.gz postgresql-fb7df896fc56e5503a00db1931e12d2275b34031.zip | |
Reload config file in startup process on SIGHUP.
Fujii Masao
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index de5c352e165..ca3965b45d7 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.332 2009/02/23 09:28:49 heikki Exp $ + * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.333 2009/03/04 13:56:40 heikki Exp $ * *------------------------------------------------------------------------- */ @@ -429,6 +429,7 @@ static bool InRedo = false; /* * Flag set by interrupt handlers for later service in the redo loop. */ +static volatile sig_atomic_t got_SIGHUP = false; static volatile sig_atomic_t shutdown_requested = false; /* * Flag set when executing a restore command, to tell SIGTERM signal handler @@ -5363,6 +5364,15 @@ StartupXLOG(void) #endif /* + * Check if we were requested to re-read config file. + */ + if (got_SIGHUP) + { + got_SIGHUP = false; + ProcessConfigFile(PGC_SIGHUP); + } + + /* * Check if we were requested to exit without finishing * recovery. */ @@ -7641,6 +7651,13 @@ startupproc_quickdie(SIGNAL_ARGS) } +/* SIGHUP: set flag to re-read config file at next convenient time */ +static void +StartupProcSigHupHandler(SIGNAL_ARGS) +{ + got_SIGHUP = true; +} + /* SIGTERM: set flag to abort redo and exit */ static void StartupProcShutdownHandler(SIGNAL_ARGS) @@ -7667,8 +7684,8 @@ StartupProcessMain(void) /* * Properly accept or ignore signals the postmaster might send us */ - pqsignal(SIGHUP, SIG_IGN); /* ignore config file updates */ - pqsignal(SIGINT, SIG_IGN); /* ignore query cancel */ + pqsignal(SIGHUP, StartupProcSigHupHandler); /* reload config file */ + pqsignal(SIGINT, SIG_IGN); /* ignore query cancel */ pqsignal(SIGTERM, StartupProcShutdownHandler); /* request shutdown */ pqsignal(SIGQUIT, startupproc_quickdie); /* hard crash time */ pqsignal(SIGALRM, SIG_IGN); |