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/* Asynchronous timers.
Copyright (C) 2000, 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
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.
GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#ifndef EMACS_ATIMER_H
#define EMACS_ATIMER_H
#include "systime.h" /* for EMACS_TIME */
/* Forward declaration. */
struct atimer;
/* Types of timers. */
enum atimer_type
{
/* Timer is ripe at some absolute time. */
ATIMER_ABSOLUTE,
/* Timer is ripe at now plus an offset. */
ATIMER_RELATIVE,
/* Timer runs continuously. */
ATIMER_CONTINUOUS
};
/* Type of timer callback functions. */
typedef void (* atimer_callback) (struct atimer *timer);
/* Structure describing an asynchronous timer. */
struct atimer
{
/* The type of this timer. */
enum atimer_type type;
/* Time when this timer is ripe. */
EMACS_TIME expiration;
/* Interval of this timer. */
EMACS_TIME interval;
/* Function to call when timer is ripe. Interrupt input is
guaranteed to not be blocked when this function is called. */
atimer_callback fn;
/* Additional user-specified data to pass to FN. */
void *client_data;
/* Next in list of active or free atimers. */
struct atimer *next;
};
/* Function prototypes. */
struct atimer *start_atimer (enum atimer_type, EMACS_TIME,
atimer_callback, void *);
void cancel_atimer (struct atimer *);
void do_pending_atimers (void);
void init_atimer (void);
void turn_on_atimers (int);
void stop_other_atimers (struct atimer *);
void run_all_atimers (void);
Lisp_Object unwind_stop_other_atimers (Lisp_Object);
#endif /* EMACS_ATIMER_H */
/* arch-tag: 02c7c1c8-45bd-4222-b874-4ca44662f60b
(do not change this comment) */
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