los_mux.h

浏览该文件的文档.

/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2019. All rights reserved.
 * Description: Mutex
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * 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.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * 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 HOLDER 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 _LOS_MUX_H
#define _LOS_MUX_H
 
#include "los_base.h"
#include "los_sys.h"
#include "los_list.h"
#include "los_task.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
typedef struct {
    LOS_DL_LIST muxList;    
    VOID *owner;            
    UINT16 muxCount;        
} MuxBaseCB;
 
#define LOS_ERRNO_MUX_NO_MEMORY             LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x00)
 
#define LOS_ERRNO_MUX_INVALID               LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x01)
 
#define LOS_ERRNO_MUX_PTR_NULL              LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x02)
 
#define LOS_ERRNO_MUX_ALL_BUSY              LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x03)
 
#define LOS_ERRNO_MUX_UNAVAILABLE           LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x04)
 
#define LOS_ERRNO_MUX_PEND_INTERR           LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x05)
 
#define LOS_ERRNO_MUX_PEND_IN_LOCK          LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x06)
 
#define LOS_ERRNO_MUX_TIMEOUT               LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x07)
 
#define LOS_ERRNO_MUX_OVERFLOW              LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x08)
 
#define LOS_ERRNO_MUX_PENDED                LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x09)
 
#define LOS_ERRNO_MUX_GET_COUNT_ERR         LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x0A)
 
#define LOS_ERRNO_MUX_REG_ERROR             LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x0B)
 
#define LOS_ERRNO_MUX_PEND_IN_SYSTEM_TASK   LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x0C)
 
extern UINT32 LOS_MuxCreate(UINT32 *muxHandle);
 
extern UINT32 LOS_MuxDelete(UINT32 muxHandle);
 
extern UINT32 LOS_MuxPend(UINT32 muxHandle, UINT32 timeout);
 
extern UINT32 LOS_MuxPost(UINT32 muxHandle);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _LOS_MUX_H */