1f9f848faSopenharmony_ci/*- 2f9f848faSopenharmony_ci * Copyright (c) 2010 Isilon Systems, Inc. 3f9f848faSopenharmony_ci * Copyright (c) 2010 iX Systems, Inc. 4f9f848faSopenharmony_ci * Copyright (c) 2010 Panasas, Inc. 5f9f848faSopenharmony_ci * Copyright (c) 2013-2017 Mellanox Technologies, Ltd. 6f9f848faSopenharmony_ci * All rights reserved. 7f9f848faSopenharmony_ci * 8f9f848faSopenharmony_ci * Redistribution and use in source and binary forms, with or without 9f9f848faSopenharmony_ci * modification, are permitted provided that the following conditions 10f9f848faSopenharmony_ci * are met: 11f9f848faSopenharmony_ci * 1. Redistributions of source code must retain the above copyright 12f9f848faSopenharmony_ci * notice unmodified, this list of conditions, and the following 13f9f848faSopenharmony_ci * disclaimer. 14f9f848faSopenharmony_ci * 2. Redistributions in binary form must reproduce the above copyright 15f9f848faSopenharmony_ci * notice, this list of conditions and the following disclaimer in the 16f9f848faSopenharmony_ci * documentation and/or other materials provided with the distribution. 17f9f848faSopenharmony_ci * 18f9f848faSopenharmony_ci * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19f9f848faSopenharmony_ci * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20f9f848faSopenharmony_ci * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21f9f848faSopenharmony_ci * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22f9f848faSopenharmony_ci * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23f9f848faSopenharmony_ci * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24f9f848faSopenharmony_ci * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25f9f848faSopenharmony_ci * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26f9f848faSopenharmony_ci * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27f9f848faSopenharmony_ci * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28f9f848faSopenharmony_ci */ 29f9f848faSopenharmony_ci#ifndef _LINUXKPI_LINUX_RWSEM_H_ 30f9f848faSopenharmony_ci#define _LINUXKPI_LINUX_RWSEM_H_ 31f9f848faSopenharmony_ci 32f9f848faSopenharmony_ci#include "linux/semaphore.h" 33f9f848faSopenharmony_ci 34f9f848faSopenharmony_ci#ifdef __cplusplus 35f9f848faSopenharmony_ci#if __cplusplus 36f9f848faSopenharmony_ciextern "C" { 37f9f848faSopenharmony_ci#endif /* __cplusplus */ 38f9f848faSopenharmony_ci#endif /* __cplusplus */ 39f9f848faSopenharmony_ci 40f9f848faSopenharmony_ci#define down_read(sem) _sema_lock((losMutexDef_t*)(sem)) 41f9f848faSopenharmony_ci#define down_read_trylock(sem) _sema_trylock((losMutexDef_t*)(sem)) 42f9f848faSopenharmony_ci#define down_write(sem) _sema_lock((losMutexDef_t*)(sem)) 43f9f848faSopenharmony_ci#define down_write_trylock(sem) _sema_trylock((losMutexDef_t*)(sem)) 44f9f848faSopenharmony_ci#define up_read(sem) _sema_unlock((losMutexDef_t*)(sem)) 45f9f848faSopenharmony_ci#define up_write(sem) _sema_unlock((losMutexDef_t*)(sem)) 46f9f848faSopenharmony_ci#define downgrade_write(sem) 47f9f848faSopenharmony_ci 48f9f848faSopenharmony_ci#ifdef __cplusplus 49f9f848faSopenharmony_ci#if __cplusplus 50f9f848faSopenharmony_ci} 51f9f848faSopenharmony_ci#endif /* __cplusplus */ 52f9f848faSopenharmony_ci#endif /* __cplusplus */ 53f9f848faSopenharmony_ci 54f9f848faSopenharmony_ci#endif /* _LINUXKPI_LINUX_RWSEM_H_ */ 55