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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [taskissuspended.c] - Rev 751
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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: taskissuspended.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_is_suspended * * This directive returns a status indicating whether or not * the specified task is suspended. * * Input parameters: * id - thread id * * Output parameters: * RTEMS_SUCCESSFUL - if successful and not suspended * RTEMS_ALREADY_SUSPENDED - if successful and suspended * error code - if unsuccessful */ rtems_status_code rtems_task_is_suspended( Objects_Id id ) { register Thread_Control *the_thread; Objects_Locations location; the_thread = _Thread_Get( id, &location ); switch ( location ) { case OBJECTS_REMOTE: #if defined(RTEMS_MULTIPROCESSING) _Thread_Dispatch(); return RTEMS_ILLEGAL_ON_REMOTE_OBJECT; #endif case OBJECTS_ERROR: return RTEMS_INVALID_ID; case OBJECTS_LOCAL: if ( !_States_Is_suspended( the_thread->current_state ) ) { _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; } _Thread_Enable_dispatch(); return RTEMS_ALREADY_SUSPENDED; } return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ }
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