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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [score/] [src/] [threadqextractfifo.c] - Blame information for rev 846

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1 30 unneback
/*
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 *  Thread Queue Handler
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 *
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 *
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 *  COPYRIGHT (c) 1989-1999.
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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.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: threadqextractfifo.c,v 1.2 2001-09-27 11:59:34 chris Exp $
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 */
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#include <rtems/system.h>
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#include <rtems/score/chain.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/states.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/threadq.h>
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#include <rtems/score/tqdata.h>
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/*PAGE
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 *
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 *  _Thread_queue_Extract_fifo
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 *
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 *  This routine removes a specific thread from the specified threadq,
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 *  deletes any timeout, and unblocks the thread.
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 *
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 *  Input parameters:
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 *    the_thread_queue - pointer to a threadq header
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 *    the_thread       - pointer to the thread to block
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 *
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 *  Output parameters: NONE
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 *
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 *  INTERRUPT LATENCY:
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 *    EXTRACT_FIFO
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 */
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void _Thread_queue_Extract_fifo(
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  Thread_queue_Control *the_thread_queue,
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  Thread_Control       *the_thread
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)
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{
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  ISR_Level level;
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  _ISR_Disable( level );
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  if ( !_States_Is_waiting_on_thread_queue( the_thread->current_state ) ) {
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    _ISR_Enable( level );
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    return;
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  }
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  _Chain_Extract_unprotected( &the_thread->Object.Node );
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  if ( !_Watchdog_Is_active( &the_thread->Timer ) ) {
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    _ISR_Enable( level );
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  } else {
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    _Watchdog_Deactivate( &the_thread->Timer );
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    _ISR_Enable( level );
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    (void) _Watchdog_Remove( &the_thread->Timer );
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  }
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  _Thread_Unblock( the_thread );
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#if defined(RTEMS_MULTIPROCESSING)
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  if ( !_Objects_Is_local_id( the_thread->Object.id ) )
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    _Thread_MP_Free_proxy( the_thread );
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#endif
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}
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