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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [tasksetnote.c] - Rev 30
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/* * RTEMS Task 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: tasksetnote.c,v 1.2 2001-09-27 11:59:19 chris Exp $ */ #include <rtems/system.h> #include <rtems/rtems/status.h> #include <rtems/rtems/support.h> #include <rtems/rtems/modes.h> #include <rtems/score/object.h> #include <rtems/score/stack.h> #include <rtems/score/states.h> #include <rtems/rtems/tasks.h> #include <rtems/score/thread.h> #include <rtems/score/threadq.h> #include <rtems/score/tod.h> #include <rtems/score/userext.h> #include <rtems/score/wkspace.h> #include <rtems/score/apiext.h> #include <rtems/score/sysstate.h> /*PAGE * * rtems_task_set_note * * This directive sets the specified notepad contents to the given * note. * * Input parameters: * id - thread id * notepad - notepad number * note - note value * * Output parameters: * RTEMS_SUCCESSFUL - if successful * error code - if unsuccessful */ rtems_status_code rtems_task_set_note( Objects_Id id, unsigned32 notepad, unsigned32 note ) { register Thread_Control *the_thread; Objects_Locations location; RTEMS_API_Control *api; /* * NOTE: There is no check for < RTEMS_NOTEPAD_FIRST because that would * be checking an unsigned number for being negative. */ if ( notepad > RTEMS_NOTEPAD_LAST ) return RTEMS_INVALID_NUMBER; /* * Optimize the most likely case to avoid the Thread_Dispatch. */ if ( _Objects_Are_ids_equal( id, OBJECTS_ID_OF_SELF ) || _Objects_Are_ids_equal( id, _Thread_Executing->Object.id ) ) { api = _Thread_Executing->API_Extensions[ THREAD_API_RTEMS ]; api->Notepads[ notepad ] = note; return RTEMS_SUCCESSFUL; } the_thread = _Thread_Get( id, &location ); switch ( location ) { case OBJECTS_REMOTE: #if defined(RTEMS_MULTIPROCESSING) return _RTEMS_tasks_MP_Send_request_packet( RTEMS_TASKS_MP_SET_NOTE_REQUEST, id, 0, /* Not used */ notepad, note ); #endif case OBJECTS_ERROR: return RTEMS_INVALID_ID; case OBJECTS_LOCAL: api = the_thread->API_Extensions[ THREAD_API_RTEMS ]; api->Notepads[ notepad ] = note; _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; } return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ }
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