vfs.hpp File Reference

#include "vfs_types.hpp"

Include dependency graph for vfs.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	vfs::Inode
	Inode — 文件元数据（独立于路径名） More...
struct	vfs::Dentry
	Dentry — 目录项缓存（路径名 ↔ Inode 的映射） More...
struct	vfs::File
	File — 打开的文件实例（每次 open 产生一个） More...

Namespaces
namespace	vfs

Functions
auto	vfs::Init () -> Expected< void >
	VFS 全局初始化
auto	vfs::Lookup (const char *path) -> Expected< Dentry * >
	路径解析，查找 dentry
auto	vfs::Open (const char *path, OpenFlags flags) -> Expected< File * >
	打开文件
auto	vfs::Close (File *file) -> Expected< void >
	关闭文件
auto	vfs::Read (File *file, void *buf, size_t count) -> Expected< size_t >
	从文件读取数据
auto	vfs::Write (File *file, const void *buf, size_t count) -> Expected< size_t >
	向文件写入数据
auto	vfs::Seek (File *file, int64_t offset, SeekWhence whence) -> Expected< uint64_t >
	调整文件偏移量
auto	vfs::MkDir (const char *path) -> Expected< void >
	创建目录
auto	vfs::RmDir (const char *path) -> Expected< void >
	删除目录
auto	vfs::Unlink (const char *path) -> Expected< void >
	删除文件
auto	vfs::ReadDir (File *file, DirEntry *dirent, size_t count) -> Expected< size_t >
	读取目录内容
auto	vfs::GetRootDentry () -> Dentry *
	获取根目录 dentry