blob: 78fbb4a7202e1c1065b0164c33789b66e7d28ea4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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.
ChibiOS/RT 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/>.
*/
/**
* @addtogroup Scheduler
* @{
*/
#ifndef _SCHEDULER_H_
#define _SCHEDULER_H_
/** Normal \p chSchReadyI() message.*/
#define RDY_OK 0
/** Returned if the thread was made ready because a timeout.*/
#define RDY_TIMEOUT -1
/** Returned if the thread was made ready because a reset.*/
#define RDY_RESET -2
/**
* Ready list header.
*/
typedef struct {
/** Highest priority \p Thread in the list.*/
Thread *p_next;
/** Lowest priority \p Thread in the list.*/
Thread *p_prev;
/** Alwas set to \p MAXPRIO.*/
t_prio p_prio;
} ReadyList;
/*
* Scheduler APIs.
*/
void chSchInit(void);
Thread *chSchReadyI(Thread *tp);
void chSchGoSleepI(t_tstate newstate);
void chSchWakeupI(Thread *tp, t_msg msg);
void chSchRescheduleI(void);
void chSchDoRescheduleI(void);
BOOL chSchRescRequiredI(void);
void chSchTimerHandlerI(void);
/**
* Current thread pointer.
* @note Dont use this directly but use the \p chThdSelf()
* instead. Direct use of system global variables is discouraged because
* portability reasons.
*/
#ifdef CH_CURRP_REGISTER_CACHE
register Thread *currp asm(CH_CURRP_REGISTER_CACHE);
#else
extern Thread *currp;
#endif
/**
* System ticks counter.
* @note Dont use this directly but use the \p chSysGetTime()
* instead. Direct use of system global variables is discouraged because
* portability reasons.
*/
extern t_time stime;
#endif /* _SCHEDULER_H_ */
/** @} */
|
