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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [itron/] [src/] [rot_rdq.c] - Rev 208
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/* * 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: rot_rdq.c,v 1.2 2001-09-27 11:59:13 chris Exp $ */ #include <itron.h> #include <rtems/score/thread.h> #include <rtems/score/userext.h> #include <rtems/score/wkspace.h> #include <rtems/score/apiext.h> #include <rtems/score/sysstate.h> #include <rtems/itron/task.h> /* * rot_rdq - Rotate Tasks on the Ready Queue */ ER rot_rdq( PRI tskpri ) { PRI priority; if (( tskpri <= 0 ) || ( tskpri >= 256 )) return E_PAR; _Thread_Disable_dispatch(); /* * Yield of processor will rotate the queue for this processor. */ priority = _ITRON_Task_Core_to_Priority(_Thread_Executing->current_priority); if ( priority == tskpri ) _Thread_Yield_processor(); else { _Thread_Rotate_Ready_Queue( _ITRON_Task_Core_to_Priority( tskpri ) ); } _Thread_Enable_dispatch(); return E_OK; }
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