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/*
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
#define firstprio(rlp) ((rlp)->p_next->p_prio)
/**
* Ready list header.
*/
typedef struct {
ThreadsQueue r_queue;
t_prio r_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_ */
/** @} */
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