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5
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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * schedule.h
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2004 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: schedule.h,v 1.8 2006/10/24 13:45:28 steveu Exp $
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26 */
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27
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28 /*! \file */
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29
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30 /*! \page schedule_page Scheduling
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31 \section schedule_page_sec_1 What does it do?
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32 ???.
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33
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34 \section schedule_page_sec_2 How does it work?
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35 ???.
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36 */
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37
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38 #if !defined(_SCHEDULE_H_)
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39 #define _SCHEDULE_H_
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40
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41 typedef struct span_sched_state_s span_sched_state_t;
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42
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43 typedef void (*span_sched_callback_func_t)(span_sched_state_t *s, void *user_data);
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44
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45 typedef struct
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46 {
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47 uint64_t when;
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48 span_sched_callback_func_t callback;
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49 void *user_data;
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50 } span_sched_t;
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51
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52 struct span_sched_state_s
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53 {
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54 uint64_t ticker;
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55 int allocated;
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56 int max_to_date;
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57 span_sched_t *sched;
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58 };
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59
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60 #ifdef __cplusplus
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61 extern "C" {
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62 #endif
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63
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64 uint64_t span_schedule_next(span_sched_state_t *s);
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65 uint64_t span_schedule_time(span_sched_state_t *s);
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66
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67 int span_schedule_event(span_sched_state_t *s, int ms, void (*function)(span_sched_state_t *s, void *data), void *user_data);
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68 void span_schedule_update(span_sched_state_t *s, int samples);
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69 void span_schedule_del(span_sched_state_t *s, int id);
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70
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71 span_sched_state_t *span_schedule_init(span_sched_state_t *s);
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72 int span_schedule_release(span_sched_state_t *s);
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73
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74 #ifdef __cplusplus
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75 }
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76 #endif
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77
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78 #endif
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79 /*- End of file ------------------------------------------------------------*/
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