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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @brief Inlined Routines from the POSIX Barrier Manager
*
* This file contains the static inlin implementation of the inlined
* routines from the POSIX Barrier Manager.
*/
/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* Copyright (c) 2017 embedded brains GmbH
*
* 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.
*/
#ifndef _RTEMS_POSIX_BARRIERIMPL_H
#define _RTEMS_POSIX_BARRIERIMPL_H
#include <errno.h>
#include <pthread.h>
#include <rtems/score/percpu.h>
#include <rtems/score/threadqimpl.h>
#ifdef __cplusplus
extern "C" {
#endif
#define POSIX_BARRIER_MAGIC 0x1cf03773UL
#define POSIX_BARRIER_TQ_OPERATIONS &_Thread_queue_Operations_FIFO
typedef struct {
unsigned long flags;
Thread_queue_Syslock_queue Queue;
unsigned int count;
unsigned int waiting_threads;
} POSIX_Barrier_Control;
static inline POSIX_Barrier_Control *_POSIX_Barrier_Get(
pthread_barrier_t *_barrier
)
{
return (POSIX_Barrier_Control *) _barrier;
}
static inline Thread_Control *_POSIX_Barrier_Queue_acquire(
POSIX_Barrier_Control *barrier,
Thread_queue_Context *queue_context
)
{
ISR_Level level;
Thread_Control *executing;
_Thread_queue_Context_initialize( queue_context );
_Thread_queue_Context_ISR_disable( queue_context, level );
_Thread_queue_Context_set_ISR_level( queue_context, level );
executing = _Thread_Executing;
_Thread_queue_Queue_acquire_critical(
&barrier->Queue.Queue,
&executing->Potpourri_stats,
&queue_context->Lock_context.Lock_context
);
return executing;
}
static inline void _POSIX_Barrier_Queue_release(
POSIX_Barrier_Control *barrier,
Thread_queue_Context *queue_context
)
{
_Thread_queue_Queue_release(
&barrier->Queue.Queue,
&queue_context->Lock_context.Lock_context
);
}
#define POSIX_BARRIER_VALIDATE_OBJECT( bar ) \
do { \
if ( \
( bar ) == NULL \
|| ( (uintptr_t) ( bar ) ^ POSIX_BARRIER_MAGIC ) != ( bar )->_flags \
) { \
return EINVAL; \
} \
} while ( 0 )
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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