/* blockinput.h - interface to blocking complicated interrupt-driven input.
- Copyright (C) 1989, 1993, 2002, 2003, 2004,
- 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1989, 1993, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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 2, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#ifndef EMACS_BLOCKINPUT_H
#define EMACS_BLOCKINPUT_H
interrupt_input_pending to a non-zero value. If that flag is set
when input becomes unblocked, UNBLOCK_INPUT will send a new SIGIO. */
-extern int interrupt_input_blocked;
+extern volatile int interrupt_input_blocked;
/* Nonzero means an input interrupt has arrived
during the current critical section. */
extern int pending_atimers;
+
/* Begin critical section. */
#define BLOCK_INPUT (interrupt_input_blocked++)