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mod inode;
mod pipe;
mod stdio;

use crate::mm::UserBuffer;

pub trait File: Send + Sync {
    fn readable(&self) -> bool;
    fn writable(&self) -> bool;
    fn read(&self, buf: UserBuffer) -> usize;
    fn write(&self, buf: UserBuffer) -> usize;
}

pub use inode::{list_apps, open_file, OSInode, OpenFlags,ROOT_INODE};
pub use pipe::{make_pipe, Pipe};
pub use stdio::{Stdin, Stdout};