Files
openharmony_kernel_liteos_m/components/fs/vfs/vfs_operations.h
Far 819833072f fix: 修复文件系统不合理的锁操作
1. 移除了fatfs和littlefs中冗余的加锁操作。
2. 增加了配置选项FS_LOCK_TIMEOUT(宏LOSCFG_FS_LOCK_TIMEOUT),提供文件
   系统锁超时判定能力。
3. 新增对外接口LOS_FsLock()和LOS_FsUnlock()接口,提供HAL层与文件系统的
   互斥操作。

BREAKING CHANGE:
修复文件系统不合理的锁操作
新增API:
los_fs.h:
int LOS_FsLock(void)
int LOS_FsUnlock(void)
新增配置项:
LOSCFG_FS_LOCK_TIMEOUT(menuconfig FS_LOCK_TIMEOUT)

fix #I66A1M

Signed-off-by: Far <yesiyuan2@huawei.com>
Change-Id: I2d7b67a209049162cd69f8ef3611ab0431df4d4a
2022-12-22 10:40:30 +08:00

63 lines
2.2 KiB
C

/*
* Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
*
* 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
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*/
#ifndef _VFS_OPERATIONS_H_
#define _VFS_OPERATIONS_H_
#include "errno.h"
#include "fcntl.h"
#include "dirent.h"
#include "stdint.h"
#include "unistd.h"
#include "sys/mount.h"
#include "sys/stat.h"
#include "sys/statfs.h"
#include "los_compiler.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
#define VFS_ERRNO_SET(err) (errno = (err))
extern UINT32 g_fsMutex;
int OsVfsInit(void);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _VFS_OPERATIONS_H_ */