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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicBarrier
*
* @brief This source file contains the implementation of
* rtems_barrier_create() and the Barrier Manager system initialization.
*/
/*
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
* 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/barrierimpl.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/attrimpl.h>
#include <rtems/score/isr.h>
#include <rtems/sysinit.h>
rtems_status_code rtems_barrier_create(
rtems_name name,
rtems_attribute attribute_set,
uint32_t maximum_waiters,
rtems_id *id
)
{
Barrier_Control *the_barrier;
uint32_t maximum_count;
if ( !rtems_is_name_valid( name ) ) {
return RTEMS_INVALID_NAME;
}
if ( id == NULL ) {
return RTEMS_INVALID_ADDRESS;
}
if ( _Attributes_Is_barrier_automatic( attribute_set ) ) {
if ( maximum_waiters == 0 ) {
return RTEMS_INVALID_NUMBER;
}
maximum_count = maximum_waiters;
} else {
maximum_count = CORE_BARRIER_MANUAL_RELEASE_MAXIMUM_COUNT;
}
the_barrier = _Barrier_Allocate();
if ( the_barrier == NULL ) {
_Objects_Allocator_unlock();
return RTEMS_TOO_MANY;
}
_CORE_barrier_Initialize( &the_barrier->Barrier, maximum_count );
*id = _Objects_Open_u32( &_Barrier_Information, &the_barrier->Object, name );
_Objects_Allocator_unlock();
return RTEMS_SUCCESSFUL;
}
static void _Barrier_Manager_initialization( void )
{
_Objects_Initialize_information( &_Barrier_Information );
}
RTEMS_SYSINIT_ITEM(
_Barrier_Manager_initialization,
RTEMS_SYSINIT_CLASSIC_BARRIER,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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