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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicEvent
*
* @brief This source file contains the implementation of
* rtems_event_system_receive().
*/
/*
* Copyright (c) 2012 embedded brains GmbH. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/eventimpl.h>
#include <rtems/rtems/tasksdata.h>
#include <rtems/score/statesimpl.h>
#include <rtems/score/threadimpl.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 ) {
ISR_lock_Context lock_context;
Thread_Control *executing;
RTEMS_API_Control *api;
Event_Control *event;
executing = _Thread_Wait_acquire_default_for_executing( &lock_context );
api = executing->API_Extensions[ THREAD_API_RTEMS ];
event = &api->System_event;
if ( !_Event_sets_Is_empty( event_in ) ) {
sc = _Event_Seize(
event_in,
option_set,
ticks,
event_out,
executing,
event,
THREAD_WAIT_CLASS_SYSTEM_EVENT,
STATES_WAITING_FOR_SYSTEM_EVENT,
&lock_context
);
} else {
*event_out = event->pending_events;
_Thread_Wait_release_default( executing, &lock_context );
sc = RTEMS_SUCCESSFUL;
}
} else {
sc = RTEMS_INVALID_ADDRESS;
}
return sc;
}
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