diff options
Diffstat (limited to 'src/backend/postmaster/pgstat.c')
| -rw-r--r-- | src/backend/postmaster/pgstat.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c index e09becdeb80..c822b35d003 100644 --- a/src/backend/postmaster/pgstat.c +++ b/src/backend/postmaster/pgstat.c @@ -13,7 +13,7 @@ * * Copyright (c) 2001-2008, PostgreSQL Global Development Group * - * $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.179 2008/08/15 08:37:39 mha Exp $ + * $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.180 2008/08/25 15:11:00 mha Exp $ * ---------- */ #include "postgres.h" @@ -203,6 +203,7 @@ static PgStat_GlobalStats globalStats; static volatile bool need_exit = false; static volatile bool need_statwrite = false; +static volatile bool got_SIGHUP = false; /* * Total time charged to functions so far in the current backend. @@ -224,6 +225,7 @@ NON_EXEC_STATIC void PgstatCollectorMain(int argc, char *argv[]); static void pgstat_exit(SIGNAL_ARGS); static void force_statwrite(SIGNAL_ARGS); static void pgstat_beshutdown_hook(int code, Datum arg); +static void pgstat_sighup_handler(SIGNAL_ARGS); static PgStat_StatDBEntry *pgstat_get_db_entry(Oid databaseid, bool create); static void pgstat_write_statsfile(bool permanent); @@ -2571,7 +2573,7 @@ PgstatCollectorMain(int argc, char *argv[]) * Ignore all signals usually bound to some action in the postmaster, * except SIGQUIT and SIGALRM. */ - pqsignal(SIGHUP, SIG_IGN); + pqsignal(SIGHUP, pgstat_sighup_handler); pqsignal(SIGINT, SIG_IGN); pqsignal(SIGTERM, SIG_IGN); pqsignal(SIGQUIT, pgstat_exit); @@ -2635,6 +2637,15 @@ PgstatCollectorMain(int argc, char *argv[]) break; /* + * Reload configuration if we got SIGHUP from the postmaster. + */ + if (got_SIGHUP) + { + ProcessConfigFile(PGC_SIGHUP); + got_SIGHUP = false; + } + + /* * If time to write the stats file, do so. Note that the alarm * interrupt isn't re-enabled immediately, but only after we next * receive a stats message; so no cycles are wasted when there is @@ -2834,6 +2845,13 @@ force_statwrite(SIGNAL_ARGS) need_statwrite = true; } +/* SIGHUP handler for collector process */ +static void +pgstat_sighup_handler(SIGNAL_ARGS) +{ + got_SIGHUP = true; +} + /* * Lookup the hash table entry for the specified database. If no hash |