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/*  thread.inl

 *

 *  This file contains the macro implementation of the inlined

 *  routines from the 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.OARcorp.com/rtems/license.html.

 *

 *  $Id: thread.inl,v 1.2 2001-09-27 11:59:34 chris Exp $

 */

#ifndef __THREAD_inl

#define __THREAD_inl

/*PAGE

 *

 *  _Thread_Stop_multitasking

 *

 */

#define _Thread_Stop_multitasking() \

  _Context_Switch( &_Thread_Executing->Registers, &_Thread_BSP_context );

/*PAGE

 *

 *  _Thread_Is_executing

 *

 */

#define _Thread_Is_executing( _the_thread ) \

        ( (_the_thread) == _Thread_Executing )

/*PAGE

 *

 *  _Thread_Is_heir

 *

 */

#define _Thread_Is_heir( _the_thread ) \

        ( (_the_thread) == _Thread_Heir )

/*PAGE

 *

 *  _Thread_Is_executing_also_the_heir

 *

 */

#define _Thread_Is_executing_also_the_heir() \

        ( _Thread_Executing == _Thread_Heir )

/*PAGE

 *

 *  _Thread_Unblock

 *

 */

#define _Thread_Unblock( _the_thread ) \

        _Thread_Clear_state( (_the_thread), STATES_BLOCKED );

/*PAGE

 *

 *  _Thread_Restart_self

 *

 */

#define _Thread_Restart_self()  \

  {  \

     if ( _Thread_Executing->fp_context != NULL ) \

       _Context_Restore_fp( &_Thread_Executing->fp_context ); \

     \

    _CPU_Context_Restart_self( &_Thread_Executing->Registers ); \

  }

/*PAGE

 *

 *  _Thread_Calculate_heir

 *

 */

#define _Thread_Calculate_heir() \

 { \

   Priority_Control  highest; \

   \

   _Priority_Get_highest( highest ); \

   \

   _Thread_Heir = (Thread_Control *) _Thread_Ready_chain[ highest ].first; \

  }

/*PAGE

 *

 *  _Thread_Is_allocated_fp

 *

 */

#define _Thread_Is_allocated_fp( _the_thread ) \

        ( (_the_thread) == _Thread_Allocated_fp )

/*PAGE

 *

 *  _Thread_Deallocate_fp

 *

 */

#define _Thread_Deallocate_fp() \

        _Thread_Allocated_fp = NULL

/*PAGE

 *

 *  _Thread_Disable_dispatch

 *

 */

#define _Thread_Disable_dispatch() \

  _Thread_Dispatch_disable_level += 1

/*PAGE

 *

 *  _Thread_Enable_dispatch

 *

 */

#if ( CPU_INLINE_ENABLE_DISPATCH == TRUE )

#define _Thread_Enable_dispatch()  \

      { if ( (--_Thread_Dispatch_disable_level) == 0 ) \

             _Thread_Dispatch();  \

      }

#endif

#if ( CPU_INLINE_ENABLE_DISPATCH == FALSE )

void _Thread_Enable_dispatch( void );

#endif

/*PAGE

 *

 *  _Thread_Unnest_dispatch

 *

 */

#define _Thread_Unnest_dispatch()  \

  _Thread_Dispatch_disable_level -= 1

/*PAGE

 *

 *  _Thread_Is_dispatching_enabled

 *

 */

#define _Thread_Is_dispatching_enabled() \

  ( _Thread_Dispatch_disable_level == 0 )

/*PAGE

 *

 *  _Thread_Is_context_switch_necessary

 *

 */

#define _Thread_Is_context_switch_necessary() \

  ( _Context_Switch_necessary == TRUE )

/*PAGE

 *

 *  _Thread_Dispatch_initialization

 *

 */

#define _Thread_Dispatch_initialization() \

  _Thread_Dispatch_disable_level = 1

/*PAGE

 *

 *  _Thread_Is_null

 *

 */

#define _Thread_Is_null( _the_thread ) \

  ( (_the_thread) == NULL )

/*

 *  _Thread_Is_proxy_blocking

 *

 */

#define _Thread_Is_proxy_blocking( _code ) \

  ( (_code) == THREAD_STATUS_PROXY_BLOCKING )

/*

 *  _Thread_Internal_allocate

 *

 */

#define _Thread_Internal_allocate() \

  ((Thread_Control *) _Objects_Allocate( &_Thread_Internal_information ))

/*

 *  _Thread_Internal_free

 *

 */

#define _Thread_Internal_free( _the_task ) \

  _Objects_Free( &_Thread_Internal_information, &(_the_task)->Object )

#endif

/* end of include file */