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/**
* @file
*
* @brief Inlined Routines Associated with the Manipulation of the Scheduler
*
* This inline file contains all of the inlined routines associated with
* the manipulation of the scheduler.
*/
/*
* Copyright (C) 2010 Gedare Bloom.
* Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef _RTEMS_SCORE_SCHEDULER_H
# error "Never use <rtems/score/scheduler.inl> directly; include <rtems/score/scheduler.h> instead."
#endif
#ifndef _RTEMS_SCORE_SCHEDULER_INL
#define _RTEMS_SCORE_SCHEDULER_INL
/**
* @addtogroup ScoreScheduler
*
* @{
*/
/**
* The preferred method to add a new scheduler is to define the jump table
* entries and add a case to the _Scheduler_Initialize routine.
*
* Generic scheduling implementations that rely on the ready queue only can
* be found in the _Scheduler_queue_XXX functions.
*/
/*
* Passing the Scheduler_Control* to these functions allows for multiple
* scheduler's to exist simultaneously, which could be useful on an SMP
* system. Then remote Schedulers may be accessible. How to protect such
* accesses remains an open problem.
*/
/**
* @brief Scheduler schedule.
*
* This kernel routine implements the scheduling decision logic for
* the scheduler. It does NOT dispatch.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Schedule( void )
{
_Scheduler.Operations.schedule();
}
/**
* @brief Scheduler yield.
*
* This routine is invoked when a thread wishes to voluntarily
* transfer control of the processor to another thread. This routine
* always operates on the scheduler that 'owns' the currently executing
* thread.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Yield( void )
{
_Scheduler.Operations.yield();
}
/**
* @brief Scheduler block.
*
* This routine removes @a the_thread from the scheduling decision for
* the scheduler. The primary task is to remove the thread from the
* ready queue. It performs any necessary schedulering operations
* including the selection of a new heir thread.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Block(
Thread_Control *the_thread
)
{
_Scheduler.Operations.block( the_thread );
}
/**
* @brief Scheduler unblock.
*
* This routine adds @a the_thread to the scheduling decision for
* the scheduler. The primary task is to add the thread to the
* ready queue per the schedulering policy and update any appropriate
* scheduling variables, for example the heir thread.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Unblock(
Thread_Control *the_thread
)
{
_Scheduler.Operations.unblock( the_thread );
}
/**
* @brief Scheduler allocate.
*
* This routine allocates @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void* _Scheduler_Allocate(
Thread_Control *the_thread
)
{
return _Scheduler.Operations.allocate( the_thread );
}
/**
* @brief Scheduler free.
*
* This routine frees @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Free(
Thread_Control *the_thread
)
{
return _Scheduler.Operations.free( the_thread );
}
/**
* @brief Scheduler update.
*
* This routine updates @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Update(
Thread_Control *the_thread
)
{
_Scheduler.Operations.update( the_thread );
}
/**
* @brief Scheduler enqueue.
*
* This routine enqueue @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Enqueue(
Thread_Control *the_thread
)
{
_Scheduler.Operations.enqueue( the_thread );
}
/**
* @brief Scheduler enqueue first.
*
* This routine enqueue_first @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Enqueue_first(
Thread_Control *the_thread
)
{
_Scheduler.Operations.enqueue_first( the_thread );
}
/**
* @brief Scheduler extract.
*
* This routine extract @a the_thread->scheduler
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Extract(
Thread_Control *the_thread
)
{
_Scheduler.Operations.extract( the_thread );
}
/**
* @brief Scheduler priority compare.
*
* This routine compares two priorities.
*/
RTEMS_INLINE_ROUTINE int _Scheduler_Priority_compare(
Priority_Control p1,
Priority_Control p2
)
{
return _Scheduler.Operations.priority_compare(p1, p2);
}
/**
* @brief Scheduler release job.
*
* This routine is called when a new period of task is issued.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Release_job(
Thread_Control *the_thread,
uint32_t length
)
{
_Scheduler.Operations.release_job(the_thread, length);
}
/**
* @brief Scheduler method invoked at each clock tick.
*
* This method is invoked at each clock tick to allow the scheduler
* implementation to perform any activities required. For the
* scheduler which support standard RTEMS features, this includes
* time-slicing management.
*/
RTEMS_INLINE_ROUTINE void _Scheduler_Tick( void )
{
_Scheduler.Operations.tick();
}
/** @} */
#endif
/* end of include file */
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