apimutex.h

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/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 *  COPYRIGHT (c) 1989-2008.
 *  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.
 */
 
#ifndef _RTEMS_SCORE_APIMUTEX_H
#define _RTEMS_SCORE_APIMUTEX_H
 
#include <rtems/score/thread.h>
 
#include <sys/lock.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct {
  struct _Mutex_recursive_Control Mutex;
 
  Thread_Life_state previous_thread_life_state;
} API_Mutex_Control;
 
#define API_MUTEX_INITIALIZER( name ) \
  { _MUTEX_RECURSIVE_NAMED_INITIALIZER( name ), 0 }
 
void _API_Mutex_Lock( API_Mutex_Control *mutex );
 
void _API_Mutex_Unlock( API_Mutex_Control *mutex );
 
bool _API_Mutex_Is_owner( const API_Mutex_Control *mutex );
 
void _RTEMS_Lock_allocator( void );
 
void _RTEMS_Unlock_allocator( void );
 
bool _RTEMS_Allocator_is_owner( void );
 
#ifdef __cplusplus
}
#endif
 
#endif
/*  end of include file */