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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [itron/] [inline/] [rtems/] [itron/] [task.inl] - Blame information for rev 30

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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: task.inl,v 1.2 2001-09-27 11:59:13 chris Exp $
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 */
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#ifndef __ITRON_TASK_inl_
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#define __ITRON_TASK_inl_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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 *  _ITRON_Task_Allocate
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 *
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 *  DESCRIPTION:
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 *
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 *  This routine allocates the task associated with the specified
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 *  task ID from the pool of inactive tasks.
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 *
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 *  Input parameters:
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 *    tskid   - id of task to allocate
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 *    status  - pointer to status variable
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 *
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 *  Output parameters:
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 *    returns - pointer to the task control block
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 *    *status - status
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 */
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RTEMS_INLINE_ROUTINE Thread_Control *_ITRON_Task_Allocate(
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  ID   tskid
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)
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{
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  return (Thread_Control *)_ITRON_Objects_Allocate_by_index(
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    &_ITRON_Task_Information,
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    tskid,
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    sizeof(Thread_Control)
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  );
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}
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/*
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 *  _ITRON_Task_Clarify_allocation_id_error
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 *
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 *  This function is invoked when an object allocation ID error
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 *  occurs to determine the specific ITRON error code to return.
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 */
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#define _ITRON_Task_Clarify_allocation_id_error( _id ) \
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  _ITRON_Objects_Clarify_allocation_id_error( \
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      &_ITRON_Task_Information, (_id) )
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/*
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 *  _ITRON_Task_Clarify_get_id_error
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 *
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 *  This function is invoked when an object get ID error
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 *  occurs to determine the specific ITRON error code to return.
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 */
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#define _ITRON_Task_Clarify_get_id_error( _id ) \
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 _ITRON_Objects_Clarify_get_id_error( &_ITRON_Task_Information, (_id) )
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/*
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 *  _ITRON_Task_Free
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 *
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 *  DESCRIPTION:
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 *
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 *  This routine frees a task control block to the
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 *  inactive chain of free task control blocks.
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 *
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 *  Input parameters:
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 *    the_task - pointer to task control block
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 *
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 *  Output parameters: NONE
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 */
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RTEMS_INLINE_ROUTINE void _ITRON_Task_Free (
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  Thread_Control *the_task
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)
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{
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  _ITRON_Objects_Free( &_ITRON_Task_Information, &the_task->Object );
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}
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/*PAGE
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 *
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 *  _ITRON_Task_Get
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 *
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 *  DESCRIPTION:
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 *
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 *  This function maps task IDs to task control blocks.
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 *  If ID corresponds to a local task, then it returns
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 *  the_task control pointer which maps to ID and location
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 *  is set to OBJECTS_LOCAL.  if the task ID is global and
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 *  resides on a remote node, then location is set to OBJECTS_REMOTE,
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 *  and the_task is undefined.  Otherwise, location is set
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 *  to OBJECTS_ERROR and the_task is undefined.
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 *
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 *  Input parameters:
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 *    id            - ITRON task ID.
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 *    the_location  - pointer to a location variable
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 *
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 *  Output parameters:
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 *    *the_location  - location of the object
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 */
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RTEMS_INLINE_ROUTINE Thread_Control *_ITRON_Task_Get (
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  ID                 id,
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  Objects_Locations *location
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)
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{
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  if ( id == 0 ) {
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    _Thread_Disable_dispatch();
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    *location = OBJECTS_LOCAL;
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    return _Thread_Executing;
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  }
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  return (Thread_Control *)
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    _ITRON_Objects_Get( &_ITRON_Task_Information, id, location );
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}
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/*PAGE
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 *
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 *  _ITRON_Task_Is_null
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 *
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 *  This function returns TRUE if the_task is NULL and FALSE otherwise.
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 *
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 *  Input parameters:
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 *    the_task - pointer to task control block
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 *
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 *  Output parameters:
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 *    TRUE  - if the_task is NULL
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 *    FALSE - otherwise
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 */
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RTEMS_INLINE_ROUTINE boolean _ITRON_Task_Is_null (
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  Thread_Control *the_task
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)
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{
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  return ( the_task == NULL );
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}
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/*
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 *  XXX insert inline routines here
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 */
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/*PAGE
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 *
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 *  _ITRON_tasks_Priority_to_Core
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 */
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RTEMS_INLINE_ROUTINE _ITRON_Task_Priority_to_Core(
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  PRI   ITRON_priority
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)
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{
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  return (Priority_Control) ITRON_priority;
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}
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/*PAGE
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 *
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 *  _ITRON_tasks_Core_to_Priority
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 */
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RTEMS_INLINE_ROUTINE _ITRON_Task_Core_to_Priority(
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  Priority_Control  core_priority
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)
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{
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  return (PRI) core_priority;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */

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