1 /*
2  * SpanDSP - a series of DSP components for telephony
3  *
4  * schedule.h
5  *
6  * Written by Steve Underwood <steveu@coppice.org>
7  *
8  * Copyright (C) 2004 Steve Underwood
9  *
10  * All rights reserved.
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU Lesser General Public License version 2.1,
14  * as published by the Free Software Foundation.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with this program; if not, write to the Free Software
23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  */
25 
26 /*! \file */
27 
28 /*! \page schedule_page Scheduling
29 \section schedule_page_sec_1 What does it do?
30 ???.
31 
32 \section schedule_page_sec_2 How does it work?
33 ???.
34 */
35 
36 #if !defined(_SPANDSP_SCHEDULE_H_)
37 #define _SPANDSP_SCHEDULE_H_
38 
39 /*! A scheduled event entry. */
40 typedef struct span_sched_s span_sched_t;
41 
42 /*! A scheduled event queue. */
43 typedef struct span_sched_state_s span_sched_state_t;
44 
45 typedef void (*span_sched_callback_func_t)(span_sched_state_t *s, void *user_data);
46 
47 #if defined(__cplusplus)
48 extern "C"
49 {
50 #endif
51 
52 SPAN_DECLARE(uint64_t) span_schedule_next(span_sched_state_t *s);
53 SPAN_DECLARE(uint64_t) span_schedule_time(span_sched_state_t *s);
54 
55 SPAN_DECLARE(int) span_schedule_event(span_sched_state_t *s, int us, span_sched_callback_func_t function, void *user_data);
56 SPAN_DECLARE(void) span_schedule_update(span_sched_state_t *s, int us);
57 SPAN_DECLARE(void) span_schedule_del(span_sched_state_t *s, int id);
58 
59 SPAN_DECLARE(span_sched_state_t *) span_schedule_init(span_sched_state_t *s);
60 SPAN_DECLARE(int) span_schedule_release(span_sched_state_t *s);
61 SPAN_DECLARE(int) span_schedule_free(span_sched_state_t *s);
62 
63 #if defined(__cplusplus)
64 }
65 #endif
66 
67 #endif
68 /*- End of file ------------------------------------------------------------*/
69