From 7bd4e6e4956d4e979a6c272bc7de187e209b0710 Mon Sep 17 00:00:00 2001
From: Jelmer Vernooij <jelmer@samba.org>
Date: Sun, 12 Oct 2008 05:23:26 +0200
Subject: Use common signal helper implementation.

---
 source3/lib/signal.c | 138 ---------------------------------------------------
 1 file changed, 138 deletions(-)
 delete mode 100644 source3/lib/signal.c

(limited to 'source3/lib/signal.c')

diff --git a/source3/lib/signal.c b/source3/lib/signal.c
deleted file mode 100644
index 4b1c95eb77..0000000000
--- a/source3/lib/signal.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/* 
-   Unix SMB/CIFS implementation.
-   signal handling functions
-
-   Copyright (C) Andrew Tridgell 1998
-   
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-   
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-   
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-
-/****************************************************************************
- Catch child exits and reap the child zombie status.
-****************************************************************************/
-
-static void sig_cld(int signum)
-{
-	while (sys_waitpid((pid_t)-1,(int *)NULL, WNOHANG) > 0)
-		;
-
-	/*
-	 * Turns out it's *really* important not to
-	 * restore the signal handler here if we have real POSIX
-	 * signal handling. If we do, then we get the signal re-delivered
-	 * immediately - hey presto - instant loop ! JRA.
-	 */
-
-#if !defined(HAVE_SIGACTION)
-	CatchSignal(SIGCLD, sig_cld);
-#endif
-}
-
-/****************************************************************************
-catch child exits - leave status;
-****************************************************************************/
-
-static void sig_cld_leave_status(int signum)
-{
-	/*
-	 * Turns out it's *really* important not to
-	 * restore the signal handler here if we have real POSIX
-	 * signal handling. If we do, then we get the signal re-delivered
-	 * immediately - hey presto - instant loop ! JRA.
-	 */
-
-#if !defined(HAVE_SIGACTION)
-	CatchSignal(SIGCLD, sig_cld_leave_status);
-#endif
-}
-
-/*******************************************************************
- Block sigs.
-********************************************************************/
-
-void BlockSignals(bool block,int signum)
-{
-#ifdef HAVE_SIGPROCMASK
-	sigset_t set;
-	sigemptyset(&set);
-	sigaddset(&set,signum);
-	sigprocmask(block?SIG_BLOCK:SIG_UNBLOCK,&set,NULL);
-#elif defined(HAVE_SIGBLOCK)
-	if (block) {
-		sigblock(sigmask(signum));
-	} else {
-		sigsetmask(siggetmask() & ~sigmask(signum));
-	}
-#else
-	/* yikes! This platform can't block signals? */
-	static int done;
-	if (!done) {
-		DEBUG(0,("WARNING: No signal blocking available\n"));
-		done=1;
-	}
-#endif
-}
-
-/*******************************************************************
- Catch a signal. This should implement the following semantics:
-
- 1) The handler remains installed after being called.
- 2) The signal should be blocked during handler execution.
-********************************************************************/
-
-void (*CatchSignal(int signum,void (*handler)(int )))(int)
-{
-#ifdef HAVE_SIGACTION
-	struct sigaction act;
-	struct sigaction oldact;
-
-	ZERO_STRUCT(act);
-
-	act.sa_handler = handler;
-#ifdef SA_RESTART
-	/*
-	 * We *want* SIGALRM to interrupt a system call.
-	 */
-	if(signum != SIGALRM)
-		act.sa_flags = SA_RESTART;
-#endif
-	sigemptyset(&act.sa_mask);
-	sigaddset(&act.sa_mask,signum);
-	sigaction(signum,&act,&oldact);
-	return oldact.sa_handler;
-#else /* !HAVE_SIGACTION */
-	/* FIXME: need to handle sigvec and systems with broken signal() */
-	return signal(signum, handler);
-#endif
-}
-
-/*******************************************************************
- Ignore SIGCLD via whatever means is necessary for this OS.
-********************************************************************/
-
-void CatchChild(void)
-{
-	CatchSignal(SIGCLD, sig_cld);
-}
-
-/*******************************************************************
- Catch SIGCLD but leave the child around so it's status can be reaped.
-********************************************************************/
-
-void CatchChildLeaveStatus(void)
-{
-	CatchSignal(SIGCLD, sig_cld_leave_status);
-}
-- 
cgit