diff options
Diffstat (limited to 'cpukit/rtems/src/timerserverfireafter.c')
-rw-r--r-- | cpukit/rtems/src/timerserverfireafter.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/rtems/src/timerserverfireafter.c b/cpukit/rtems/src/timerserverfireafter.c new file mode 100644 index 0000000000..32b42b77ce --- /dev/null +++ b/cpukit/rtems/src/timerserverfireafter.c @@ -0,0 +1,79 @@ +/* + * Timer Manager - rtems_timer_server fire_after directive + * + * + * COPYRIGHT (c) 1989-2002. + * 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. + * + * $Id$ + */ + +#include <rtems/system.h> +#include <rtems/rtems/status.h> +#include <rtems/rtems/support.h> +#include <rtems/score/object.h> +#include <rtems/score/thread.h> +#include <rtems/rtems/timer.h> +#include <rtems/score/tod.h> +#include <rtems/score/watchdog.h> + +/*PAGE + * + * rtems_timer_server_fire_after + * + * This directive allows a thread to start a timer which will by + * executed by the Timer Server when it fires. + * + * Input parameters: + * id - timer id + * ticks - interval until routine is fired + * routine - routine to schedule + * user_data - passed as argument to routine when it is fired + * + * Output parameters: + * RTEMS_SUCCESSFUL - if successful + * error code - if unsuccessful + */ + +rtems_status_code rtems_timer_server_fire_after( + Objects_Id id, + rtems_interval ticks, + rtems_timer_service_routine_entry routine, + void *user_data +) +{ + Timer_Control *the_timer; + Objects_Locations location; + extern Chain_Control _Timer_Ticks_chain; + + if ( !_Timer_Server ) + return RTEMS_INCORRECT_STATE; + + if ( ticks == 0 ) + return RTEMS_INVALID_NUMBER; + + the_timer = _Timer_Get( id, &location ); + switch ( location ) { + case OBJECTS_REMOTE: /* should never return this */ + return RTEMS_INTERNAL_ERROR; + + case OBJECTS_ERROR: + return RTEMS_INVALID_ID; + + case OBJECTS_LOCAL: + (void) _Watchdog_Remove( &the_timer->Ticker ); + the_timer->the_class = TIMER_INTERVAL_ON_TASK; + _Watchdog_Initialize( &the_timer->Ticker, routine, id, user_data ); + the_timer->Ticker.initial = ticks; + _Watchdog_Insert( &_Timer_Ticks_chain, &the_timer->Ticker ); + _Timer_Server_reset( TIMER_SERVER_RESET_TICKS ); + _Thread_Enable_dispatch(); + return RTEMS_SUCCESSFUL; + } + + return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ +} |