diff options
Diffstat (limited to 'c/src/exec/rtems/src/eventseize.c')
-rw-r--r-- | c/src/exec/rtems/src/eventseize.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/c/src/exec/rtems/src/eventseize.c b/c/src/exec/rtems/src/eventseize.c deleted file mode 100644 index ca41c65b6a..0000000000 --- a/c/src/exec/rtems/src/eventseize.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Event 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. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/rtems/status.h> -#include <rtems/rtems/event.h> -#include <rtems/score/isr.h> -#include <rtems/score/object.h> -#include <rtems/rtems/options.h> -#include <rtems/score/states.h> -#include <rtems/score/thread.h> -#include <rtems/rtems/tasks.h> - -/*PAGE - * - * _Event_Seize - * - * This routine attempts to satisfy the requested event condition - * for the running thread. - * - * Input parameters: - * event_in - the event condition to satisfy - * option_set - acquire event options - * ticks - interval to wait - * event_out - pointer to event set output area - * - * Output parameters: NONE - * *event_out - event set output area filled in - * - * INTERRUPT LATENCY: - * available - * wait - * check sync - */ - -void _Event_Seize( - rtems_event_set event_in, - rtems_option option_set, - rtems_interval ticks, - rtems_event_set *event_out -) -{ - Thread_Control *executing; - rtems_event_set seized_events; - rtems_event_set pending_events; - ISR_Level level; - RTEMS_API_Control *api; - Event_Sync_states sync_state; - - executing = _Thread_Executing; - executing->Wait.return_code = RTEMS_SUCCESSFUL; - - api = executing->API_Extensions[ THREAD_API_RTEMS ]; - - _ISR_Disable( level ); - pending_events = api->pending_events; - seized_events = _Event_sets_Get( pending_events, event_in ); - - if ( !_Event_sets_Is_empty( seized_events ) && - (seized_events == event_in || _Options_Is_any( option_set )) ) { - api->pending_events = - _Event_sets_Clear( pending_events, seized_events ); - _ISR_Enable( level ); - *event_out = seized_events; - return; - } - - if ( _Options_Is_no_wait( option_set ) ) { - _ISR_Enable( level ); - executing->Wait.return_code = RTEMS_UNSATISFIED; - *event_out = seized_events; - return; - } - - _Event_Sync_state = EVENT_SYNC_NOTHING_HAPPENED; - - executing->Wait.option = (unsigned32) option_set; - executing->Wait.count = (unsigned32) event_in; - executing->Wait.return_argument = event_out; - - _ISR_Enable( level ); - - if ( ticks ) { - _Watchdog_Initialize( - &executing->Timer, - _Event_Timeout, - executing->Object.id, - NULL - ); - _Watchdog_Insert_ticks( &executing->Timer, ticks ); - } - - _Thread_Set_state( executing, STATES_WAITING_FOR_EVENT ); - - _ISR_Disable( level ); - - sync_state = _Event_Sync_state; - _Event_Sync_state = EVENT_SYNC_SYNCHRONIZED; - - switch ( sync_state ) { - case EVENT_SYNC_SYNCHRONIZED: - /* - * This cannot happen. It indicates that this routine did not - * enter the synchronization states above. - */ - return; - - case EVENT_SYNC_NOTHING_HAPPENED: - _ISR_Enable( level ); - return; - - case EVENT_SYNC_TIMEOUT: - executing->Wait.return_code = RTEMS_TIMEOUT; - _ISR_Enable( level ); - _Thread_Unblock( executing ); - return; - - case EVENT_SYNC_SATISFIED: - if ( _Watchdog_Is_active( &executing->Timer ) ) { - _Watchdog_Deactivate( &executing->Timer ); - _ISR_Enable( level ); - (void) _Watchdog_Remove( &executing->Timer ); - } else - _ISR_Enable( level ); - _Thread_Unblock( executing ); - return; - } -} |