Subversion Repositories openrisc_2011-10-31

/*

 *  Event Manager

 *

 *  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: eventsend.c,v 1.2 2001-09-27 11:59:19 chris Exp $

 */

#include <rtems/system.h>

#include <rtems/rtems/status.h>

#include <rtems/rtems/event.h>

#include <rtems/score/isr.h>

#include <rtems/score/object.h>

#include <rtems/rtems/options.h>

#include <rtems/score/states.h>

#include <rtems/score/thread.h>

#include <rtems/rtems/tasks.h>

/*PAGE

 *

 *  rtems_event_send

 *

 *  This directive allows a thread send an event set to another thread.

 *

 *  Input parameters:

 *    id    - thread id

 *    event - event set

 *

 *  Output parameters:

 *    RTEMS_SUCCESSFUL - if successful

 *    error code - if unsuccessful

 */

rtems_status_code rtems_event_send(

  Objects_Id         id,

  rtems_event_set event_in

)

{

  register Thread_Control *the_thread;

  Objects_Locations        location;

  RTEMS_API_Control       *api;

  the_thread = _Thread_Get( id, &location );

  switch ( location ) {

    case OBJECTS_REMOTE:

#if defined(RTEMS_MULTIPROCESSING)

      return(

        _Event_MP_Send_request_packet(

          EVENT_MP_SEND_REQUEST,

          id,

          event_in

        )

      );

#endif

    case OBJECTS_ERROR:

      return RTEMS_INVALID_ID;

    case OBJECTS_LOCAL:

      api = the_thread->API_Extensions[ THREAD_API_RTEMS ];

      _Event_sets_Post( event_in, &api->pending_events );

      _Event_Surrender( the_thread );

      _Thread_Enable_dispatch();

      return RTEMS_SUCCESSFUL;

  }

  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */

}