ctdb-build: Change from ctdb-util to samba-util

[vlendec/samba-autobuild/.git] / ctdb / lib / util / signal.c

diff --git a/ctdb/lib/util/signal.c b/ctdb/lib/util/signal.c
deleted file mode 100644 (file)
index 33a9900..0000000
--- a/ctdb/lib/util/signal.c
+++ /dev/null
@@ -1,144 +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"
-#include "system/wait.h"
-
-/**
- * @file
- * @brief Signal handling
- */
-
-/****************************************************************************
- Catch child exits and reap the child zombie status.
-****************************************************************************/
-
-static void sig_cld(int signum)
-{
-       while (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))(int)
-{
-       return CatchSignal(SIGCLD, sig_cld);
-}
-
-/**
- Catch SIGCLD but leave the child around so it's status can be reaped.
-**/
-
-void (*CatchChildLeaveStatus(void))(int)
-{
-       return CatchSignal(SIGCLD, sig_cld_leave_status);
-}