lib/util: Clean up includes for signal.c

Add signal.h.  Allows standalone compiles without external includes.h.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Jeremy Allison <jra@samba.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/lib/util/signal.h b/lib/util/signal.h
new file mode 100644
index 0000000000..0663af6ab9
--- /dev/null
+++ b/lib/util/signal.h
@@ -0,0 +1,49 @@
+/*
+   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/>.
+*/
+
+#ifndef _SAMBA_UTIL_SIGNAL_H_
+#define _SAMBA_UTIL_SIGNAL_H_
+
+#include <stdbool.h>
+
+/**
+ Block sigs.
+**/
+void BlockSignals(bool block, int signum);
+
+/**
+ 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);
+
+/**
+ Ignore SIGCLD via whatever means is necessary for this OS.
+**/
+void (*CatchChild(void))(int);
+
+/**
+ Catch SIGCLD but leave the child around so it's status can be reaped.
+**/
+void (*CatchChildLeaveStatus(void))(int);
+
+#endif /* _SAMBA_UTIL_SIGNAL_H_ */