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