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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [taskwakewhen.c] - Rev 593
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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: taskwakewhen.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_wake_when * * This directive blocks the requesting thread until the given date and * time is reached. * * Input parameters: * time_buffer - pointer to the time and date structure * * Output parameters: * RTEMS_SUCCESSFUL - if successful * error code - if unsuccessful */ rtems_status_code rtems_task_wake_when( rtems_time_of_day *time_buffer ) { Watchdog_Interval seconds; if ( !_TOD_Is_set ) return RTEMS_NOT_DEFINED; time_buffer->ticks = 0; if ( !_TOD_Validate( time_buffer ) ) return RTEMS_INVALID_CLOCK; seconds = _TOD_To_seconds( time_buffer ); if ( seconds <= _TOD_Seconds_since_epoch ) return RTEMS_INVALID_CLOCK; _Thread_Disable_dispatch(); _Thread_Set_state( _Thread_Executing, STATES_WAITING_FOR_TIME ); _Watchdog_Initialize( &_Thread_Executing->Timer, _Thread_Delay_ended, _Thread_Executing->Object.id, NULL ); _Watchdog_Insert_seconds( &_Thread_Executing->Timer, seconds - _TOD_Seconds_since_epoch ); _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; }
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