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/*
* Thread Handler
*
*
* COPYRIGHT (c) 1989-1999.
* 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.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apiext.h>
#include <rtems/score/context.h>
#include <rtems/score/coremutex.h>
#include <rtems/score/interr.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/score/priority.h>
#include <rtems/score/states.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/userext.h>
#include <rtems/score/wkspace.h>
/*
* _Thread_Reset
*
* DESCRIPTION:
*
* This routine resets a thread to its initial stat but does
* not actually restart it. Some APIs do this in separate
* operations and this division helps support this.
*/
void _Thread_Reset(
Thread_Control *the_thread,
void *pointer_argument,
Thread_Entry_numeric_type numeric_argument
)
{
CORE_mutex_Control *mutex;
ISR_Level level;
the_thread->resource_count = 0;
#if defined(RTEMS_ITRON_API)
the_thread->suspend_count = 0;
#endif
the_thread->is_preemptible = the_thread->Start.is_preemptible;
the_thread->budget_algorithm = the_thread->Start.budget_algorithm;
the_thread->budget_callout = the_thread->Start.budget_callout;
the_thread->Start.pointer_argument = pointer_argument;
the_thread->Start.numeric_argument = numeric_argument;
if ( !_Thread_queue_Extract_with_proxy( the_thread ) ) {
if ( _Watchdog_Is_active( &the_thread->Timer ) )
(void) _Watchdog_Remove( &the_thread->Timer );
}
_ISR_Disable( level );
if ( the_thread->Priority_node.waiting_to_hold != NULL ) {
mutex = _Thread_Dequeue_priority_node( &the_thread->Priority_node );
_Thread_Evaluate_priority( mutex->holder );
}
_ISR_Enable( level );
_ISR_Disable( level );
while ( !_Chain_Is_empty( &the_thread->Priority_node.Inherited_priorities ) ) {
_Thread_Dequeue_priority_node(
((Thread_Priority_node*)_Chain_First(
&the_thread->Priority_node.Inherited_priorities
))
);
_ISR_Flash( level );
}
_ISR_Enable( level );
if ( the_thread->Priority_node.current_priority != the_thread->Start.initial_priority ) {
the_thread->Priority_node.real_priority = the_thread->Start.initial_priority;
_Thread_Set_priority( the_thread, the_thread->Start.initial_priority );
}
}
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