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use std::{
collections::HashMap,
marker::PhantomData,
os::unix::io::RawFd,
sync::{Arc, Mutex},
};
use tokio::{
io::unix::AsyncFd,
sync::{broadcast, Notify, Semaphore},
};
use crate::{proto, util::DumbFd, FuseResult, Ino};
pub mod io;
#[doc(cfg(feature = "server"))]
pub mod fs;
#[doc(cfg(feature = "server"))]
pub mod ops;
#[doc(cfg(feature = "mount"))]
pub mod mount;
mod session;
use fs::Fuse;
#[doc(cfg(feature = "server"))]
pub struct Session<Fs: Fuse> {
_fusermount_fd: DumbFd,
session_fd: AsyncFd<RawFd>,
proto_minor: u32,
fs: Fs,
input_semaphore: Arc<Semaphore>,
large_buffers: Mutex<Vec<Box<[u8]>>>,
known: Mutex<HashMap<Ino, (Fs::Farc, u64)>>,
destroy: Notify,
interrupt_tx: broadcast::Sender<u64>,
}
#[doc(cfg(feature = "server"))]
pub struct Start {
fusermount_fd: DumbFd,
session_fd: DumbFd,
}
mod private_trait {
pub trait Operation<'o, Fs: super::Fuse> {
type RequestBody = ();
type ReplyTail = ();
fn consume_errno(_errno: i32, _tail: &mut Self::ReplyTail) {}
}
}
use private_trait::Operation;
#[doc(cfg(feature = "server"))]
pub type Op<'o, Fs, O> = (Request<'o, Fs, O>, Reply<'o, Fs, O>, &'o Arc<Session<Fs>>);
#[doc(cfg(feature = "server"))]
pub struct Request<'o, Fs: Fuse, O: Operation<'o, Fs>> {
header: &'o proto::InHeader,
body: O::RequestBody,
}
#[doc(cfg(feature = "server"))]
pub struct Reply<'o, Fs: Fuse, O: Operation<'o, Fs>> {
session: &'o Session<Fs>,
unique: u64,
tail: O::ReplyTail,
}
#[must_use]
#[doc(cfg(feature = "server"))]
pub struct Done<'o>(FuseResult<PhantomData<&'o ()>>);
impl Done<'_> {
fn from_result(result: FuseResult<()>) -> Self {
Done(result.map(|()| PhantomData))
}
fn into_result(self) -> FuseResult<()> {
self.0.map(|PhantomData| ())
}
}
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