753d86014b
系统支持newlib，并且可以与musl-C自由切换 1. 新增newlib支持，适配newlib的预留钩子，针对系统能力适配newlib头文件（补充宏定义，结构体定义，posix能力开关）， 采用标准C与自研posix接口声明与结构体定义混合作为C库 2. 梳理kal的依赖关系，kal作为内核对外提供的标准接口，下属包含cmsis、libc、posix。 cmsis为内核对cmsis接口的支持，libc为内核对三方C库的适配及使用，posix为内核自研提供的posix标准接口。 若采用musl-C，则kal中选取libc/musl,posix共同作为C库对外支持； 若采用newlib-C，则kal中选取libc/newlib,部分posix共同作为C库对外支持。 3. fs整理，components/fs下提供基于posix标准的接口改为内部对外接口，供musl以及newlib切换 适配使用 close: #I4ENQ1 Signed-off-by: arvinzzz <zhaotianyu9@huawei.com> Change-Id: I72eda5ac5499f72c67e800e22b0f39eb288f2b94
81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FS_OPERATIONS_H_
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#define _FS_OPERATIONS_H_
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#include "fcntl.h"
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#include "dirent.h"
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#include "unistd.h"
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#include "sys/mount.h"
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#include "sys/stat.h"
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#include "sys/statfs.h"
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#define FS_SUCCESS 0
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#define FS_FAILURE (-1)
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#define MAX_FILESYSTEM_LEN 2
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struct MountOps {
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int (*Mount)(const char *source, const char *target, const char *filesystemtype, unsigned long mountflags,
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const void *data);
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int (*Umount)(const char* target);
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int (*Umount2)(const char* target, int flag);
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int (*Statfs)(const char *path, struct statfs *buf);
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};
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struct FsMap {
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const char *fileSystemtype;
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const struct MountOps *fsMops;
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const struct FileOps *fsFops;
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};
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struct FileOps {
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int (*Open)(const char *path, int openFlag, ...);
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int (*Close)(int fd);
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int (*Unlink)(const char *fileName);
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int (*Rmdir)(const char *dirName);
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int (*Mkdir)(const char *dirName, mode_t mode);
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struct dirent *(*Readdir)(DIR *dir);
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DIR *(*Opendir)(const char *dirName);
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int (*Closedir)(DIR *dir);
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int (*Read)(int fd, void *buf, size_t len);
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int (*Write)(int fd, const void *buf, size_t len);
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off_t (*Seek)(int fd, off_t offset, int whence);
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int (*Getattr)(const char *path, struct stat *buf);
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int (*Rename)(const char *oldName, const char *newName);
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int (*Fsync)(int fd);
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int (*Fstat)(int fd, struct stat *buf);
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int (*Stat)(const char *path, struct stat *buf);
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int (*Ftruncate)(int fd, off_t length);
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};
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#endif /* _FS_OPERATIONS_H_ */
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