Move pqsignal() to libpgport.

We had two copies of this function in the backend and libpq, which was
already pretty bogus, but it turns out that we need it in some other
programs that don't use libpq (such as pg_test_fsync).  So put it where
it probably should have been all along.  The signal-mask-initialization
support in src/backend/libpq/pqsignal.c stays where it is, though, since
we only need that in the backend.

1 files changed, 0 insertions, 49 deletions

diff --git a/src/interfaces/libpq/pqsignal.c b/src/interfaces/libpq/pqsignal.c
deleted file mode 100644
index 26e203b669..0000000000
--- a/src/interfaces/libpq/pqsignal.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * pqsignal.c
- *	  reliable BSD-style signal(2) routine stolen from RWW who stole it
- *	  from Stevens...
- *
- * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *
- * IDENTIFICATION
- *	  src/interfaces/libpq/pqsignal.c
- *
- * NOTES
- *		This shouldn't be in libpq, but the monitor and some other
- *		things need it...
- *
- *-------------------------------------------------------------------------
- */
-#include "postgres_fe.h"
-
-#include <signal.h>
-
-#include "pqsignal.h"
-
-
-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 */
-}