1 files changed, 3 insertions, 64 deletions
diff --git a/src/backend/libpq/pqsignal.c b/src/backend/libpq/pqsignal.c
index d088daeb7dd..b621ba7addc 100644
--- a/src/backend/libpq/pqsignal.c
+++ b/src/backend/libpq/pqsignal.c
@@ -1,8 +1,7 @@
 /*-------------------------------------------------------------------------
  *
  * pqsignal.c
- *	  reliable BSD-style signal(2) routine stolen from RWW who stole it
- *	  from Stevens...
+ *	  Backend signal(2) support (see also src/port/pqsignal.c)
  *
  * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
@@ -11,38 +10,11 @@
  * IDENTIFICATION
  *	  src/backend/libpq/pqsignal.c
  *
- * NOTES
- *		This shouldn't be in libpq, but the monitor and some other
- *		things need it...
- *
- *	A NOTE ABOUT SIGNAL HANDLING ACROSS THE VARIOUS PLATFORMS.
- *
- *	pg_config.h defines the macro HAVE_POSIX_SIGNALS for some platforms and
- *	not for others.  This file and pqsignal.h use that macro to decide
- *	how to handle signalling.
- *
- *	signal(2) handling - this is here because it affects some of
- *	the frontend commands as well as the backend processes.
- *
- *	Ultrix and SunOS provide BSD signal(2) semantics by default.
- *
- *	SVID2 and POSIX signal(2) semantics differ from BSD signal(2)
- *	semantics.	We can use the POSIX sigaction(2) on systems that
- *	allow us to request restartable signals (SA_RESTART).
- *
- *	Some systems don't allow restartable signals at all unless we
- *	link to a special BSD library.
- *
- *	We devoutly hope that there aren't any systems that provide
- *	neither POSIX signals nor BSD signals.	The alternative
- *	is to do signal-handler reinstallation, which doesn't work well
- *	at all.
- * ------------------------------------------------------------------------*/
+ * ------------------------------------------------------------------------
+ */
 
 #include "postgres.h"
 
-#include <signal.h>
-
 #include "libpq/pqsignal.h"
 
 
@@ -145,36 +117,3 @@ pqinitmask(void)
 		sigmask(SIGWINCH) | sigmask(SIGFPE);
 #endif
 }
-
-
-/* Win32 signal handling is in backend/port/win32/signal.c */
-#ifndef WIN32
-
-/*
- * Set up a signal handler
- */
-pqsigfunc
-pqsignal(int signo, pqsigfunc func)
-{
-#if !defined(HAVE_POSIX_SIGNALS)
-	return signal(signo, func);
-#else
-	struct sigaction act,
-				oact;
-
-	act.sa_handler = func;
-	sigemptyset(&act.sa_mask);
-	act.sa_flags = 0;
-	if (signo != SIGALRM)
-		act.sa_flags |= SA_RESTART;
-#ifdef SA_NOCLDSTOP
-	if (signo == SIGCHLD)
-		act.sa_flags |= SA_NOCLDSTOP;
-#endif
-	if (sigaction(signo, &act, &oact) < 0)
-		return SIG_ERR;
-	return oact.sa_handler;
-#endif   /* !HAVE_POSIX_SIGNALS */
-}
-
-#endif   /* WIN32 */