From 8e2998d8a6aebc2a3b22e6048fab8abe1c95f1f0 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 19 Feb 2002 19:54:43 +0000
Subject: [PATCH] Remove some unnecessary pqsignal() calls to shave a few
cycles off backend startup.
---
src/backend/tcop/postgres.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 0609e1e9531..e1357670cb8 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.245 2002/01/10 01:11:45 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.246 2002/02/19 19:54:43 tgl Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -1478,9 +1478,10 @@ PostgresMain(int argc, char *argv[], const char *username)
*
* Also note: it's best not to use any signals that are SIG_IGNored in
* the postmaster. If such a signal arrives before we are able to
- * change the handler to non-SIG_IGN, it'll get dropped. If
- * necessary, make a dummy handler in the postmaster to reserve the
- * signal.
+ * change the handler to non-SIG_IGN, it'll get dropped. Instead,
+ * make a dummy handler in the postmaster to reserve the signal.
+ * (Of course, this isn't an issue for signals that are locally generated,
+ * such as SIGALRM and SIGPIPE.)
*/
pqsignal(SIGHUP, SigHupHandler); /* set flag to read config file */
@@ -1508,10 +1509,6 @@ PostgresMain(int argc, char *argv[], const char *username)
*/
pqsignal(SIGCHLD, SIG_DFL); /* system() requires this on some
* platforms */
- pqsignal(SIGTTIN, SIG_DFL);
- pqsignal(SIGTTOU, SIG_DFL);
- pqsignal(SIGCONT, SIG_DFL);
- pqsignal(SIGWINCH, SIG_DFL);
pqinitmask();
@@ -1626,7 +1623,7 @@ PostgresMain(int argc, char *argv[], const char *username)
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
- puts("$Revision: 1.245 $ $Date: 2002/01/10 01:11:45 $\n");
+ puts("$Revision: 1.246 $ $Date: 2002/02/19 19:54:43 $\n");
}
/*
--
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