105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
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/*
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* Copyright (c) 2022-2022 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 _VFS_FILES_H_
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#define _VFS_FILES_H_
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#include "dirent.h"
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#include "sys/stat.h"
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#include "unistd.h"
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#include "los_compiler.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#define FILE_STATUS_NOT_USED 0
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#define FILE_STATUS_INITING 1
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#define FILE_STATUS_READY 2
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#define FILE_STATUS_CLOSING 3
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struct FileOps;
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struct File;
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struct Dir;
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struct MountPoint;
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struct FileOps {
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int (*open)(struct File *, const char *, int);
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int (*close)(struct File *);
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ssize_t (*read)(struct File *, char *, size_t);
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ssize_t (*write)(struct File *, const char *, size_t);
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off_t (*lseek)(struct File *, off_t, int);
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int (*stat)(struct MountPoint *, const char *, struct stat *);
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int (*truncate)(struct File *, off_t);
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int (*unlink)(struct MountPoint *, const char *);
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int (*rename)(struct MountPoint *, const char *, const char *);
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int (*ioctl)(struct File *, int, unsigned long);
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int (*sync)(struct File *);
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int (*opendir)(struct Dir *, const char *);
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int (*readdir)(struct Dir *, struct dirent *);
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int (*closedir)(struct Dir *);
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int (*mkdir)(struct MountPoint *, const char *);
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int (*rmdir)(struct MountPoint *, const char *);
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};
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struct File {
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const struct FileOps *fFops;
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UINT32 fFlags;
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UINT32 fStatus;
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off_t fOffset;
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INT32 fOwner;
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struct MountPoint *fMp;
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void *fData; /* file system operations handle, fatfs FIL, etc. */
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const char *fullPath;
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};
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struct Dir {
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struct MountPoint *dMp;
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struct dirent dDent;
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off_t dOffset;
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void *dData;
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};
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int FileToFd(const struct File *file);
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struct File *FdToFile(int fd);
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struct File *VfsFileGet(void);
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struct File *VfsFileGetSpec(int fd);
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void VfsFilePut(struct File *file);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _VFS_FILES_H_ */
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