diff options
Diffstat (limited to 'cpukit/rtems/src/systemeventreceive.c')
-rw-r--r-- | cpukit/rtems/src/systemeventreceive.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/cpukit/rtems/src/systemeventreceive.c b/cpukit/rtems/src/systemeventreceive.c new file mode 100644 index 0000000000..43f2bec048 --- /dev/null +++ b/cpukit/rtems/src/systemeventreceive.c @@ -0,0 +1,68 @@ +/** + * @file + * + * @ingroup ClassicEventSystem + * + * @brief rtems_event_system_receive() implementation. + */ + +/* + * Copyright (c) 2012 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Obere Lagerstr. 30 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + */ + +#if HAVE_CONFIG_H + #include "config.h" +#endif + +#include <rtems/rtems/event.h> +#include <rtems/rtems/tasks.h> + +rtems_status_code rtems_event_system_receive( + rtems_event_set event_in, + rtems_option option_set, + rtems_interval ticks, + rtems_event_set *event_out +) +{ + rtems_status_code sc; + + if ( event_out != NULL ) { + Thread_Control *executing = _Thread_Executing; + RTEMS_API_Control *api = executing->API_Extensions[ THREAD_API_RTEMS ]; + Event_Control *event = &api->System_event; + + if ( !_Event_sets_Is_empty( event_in ) ) { + _Thread_Disable_dispatch(); + _Event_Seize( + event_in, + option_set, + ticks, + event_out, + executing, + event, + &_System_event_Sync_state, + STATES_WAITING_FOR_SYSTEM_EVENT + ); + _Thread_Enable_dispatch(); + + sc = executing->Wait.return_code; + } else { + *event_out = event->pending_events; + sc = RTEMS_SUCCESSFUL; + } + } else { + sc = RTEMS_INVALID_ADDRESS; + } + + return sc; +} |