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/**
* @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/eventimpl.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_Get_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;
}
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