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/**
* @file
*
* @brief Thread Close
* @ingroup ScoreThread
*/
/*
* COPYRIGHT (c) 1989-2011.
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/threadimpl.h>
#include <rtems/score/schedulerimpl.h>
#include <rtems/score/threadqimpl.h>
#include <rtems/score/userextimpl.h>
#include <rtems/score/watchdogimpl.h>
#include <rtems/score/wkspace.h>
void _Thread_Close(
Objects_Information *information,
Thread_Control *the_thread
)
{
/*
* Now we are in a dispatching critical section again and we
* can take the thread OUT of the published set. It is invalid
* to use this thread's Id after this call. This will prevent
* any other task from attempting to initiate a call on this task.
*/
_Objects_Invalidate_Id( information, &the_thread->Object );
/*
* We assume the Allocator Mutex is locked when we get here.
* This provides sufficient protection to let the user extensions
* run but as soon as we get back, we will make the thread
* disappear and set a transient state on it. So we temporarily
* unnest dispatching.
*/
_Thread_Unnest_dispatch();
_User_extensions_Thread_delete( the_thread );
_Thread_Disable_dispatch();
/*
* Now we are in a dispatching critical section again and we
* can take the thread OUT of the published set. It is invalid
* to use this thread's Id OR name after this call.
*/
_Objects_Close( information, &the_thread->Object );
/*
* By setting the dormant state, the thread will not be considered
* for scheduling when we remove any blocking states.
*/
_Thread_Set_state( the_thread, STATES_DORMANT );
if ( !_Thread_queue_Extract_with_proxy( the_thread ) ) {
if ( _Watchdog_Is_active( &the_thread->Timer ) )
(void) _Watchdog_Remove( &the_thread->Timer );
}
/*
* Free the per-thread scheduling information.
*/
_Scheduler_Free( the_thread );
/*
* The thread might have been FP. So deal with that.
*/
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
#if ( CPU_USE_DEFERRED_FP_SWITCH == TRUE )
if ( _Thread_Is_allocated_fp( the_thread ) )
_Thread_Deallocate_fp();
#endif
the_thread->fp_context = NULL;
_Workspace_Free( the_thread->Start.fp_context );
#endif
/*
* Free the rest of the memory associated with this task
* and set the associated pointers to NULL for safety.
*/
_Thread_Stack_Free( the_thread );
the_thread->Start.stack = NULL;
_Workspace_Free( the_thread->extensions );
the_thread->extensions = NULL;
_Workspace_Free( the_thread->Start.tls_area );
}
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