67 lines
1.6 KiB
Rust
67 lines
1.6 KiB
Rust
use {
|
|
crate::io_uring::{
|
|
pending_result::PendingResult,
|
|
sys::{io_uring_sqe, IORING_OP_ACCEPT},
|
|
IoUring, IoUringData, IoUringError, IoUringTaskId, Task, TaskResultExt,
|
|
},
|
|
std::rc::Rc,
|
|
uapi::{c, OwnedFd},
|
|
};
|
|
|
|
impl IoUring {
|
|
pub async fn accept(
|
|
&self,
|
|
fd: &Rc<OwnedFd>,
|
|
flags: c::c_int,
|
|
) -> Result<Rc<OwnedFd>, IoUringError> {
|
|
self.ring.check_destroyed()?;
|
|
let id = self.ring.id();
|
|
let pr = self.ring.pending_results.acquire();
|
|
{
|
|
let mut pw = self.ring.cached_accepts.pop().unwrap_or_default();
|
|
pw.id = id.id;
|
|
pw.fd = fd.raw() as _;
|
|
pw.flags = flags as _;
|
|
pw.data = Some(Data {
|
|
pr: pr.clone(),
|
|
_fd: fd.clone(),
|
|
});
|
|
self.ring.schedule(pw);
|
|
}
|
|
Ok(pr.await.map(OwnedFd::new).map(Rc::new)).merge()
|
|
}
|
|
}
|
|
|
|
struct Data {
|
|
pr: PendingResult,
|
|
_fd: Rc<OwnedFd>,
|
|
}
|
|
|
|
#[derive(Default)]
|
|
pub struct AcceptTask {
|
|
id: IoUringTaskId,
|
|
fd: i32,
|
|
flags: u32,
|
|
data: Option<Data>,
|
|
}
|
|
|
|
unsafe impl Task for AcceptTask {
|
|
fn id(&self) -> IoUringTaskId {
|
|
self.id
|
|
}
|
|
|
|
fn complete(mut self: Box<Self>, ring: &IoUringData, res: i32) {
|
|
if let Some(data) = self.data.take() {
|
|
data.pr.complete(res);
|
|
}
|
|
ring.cached_accepts.push(self);
|
|
}
|
|
|
|
fn encode(&self, sqe: &mut io_uring_sqe) {
|
|
sqe.opcode = IORING_OP_ACCEPT;
|
|
sqe.fd = self.fd;
|
|
sqe.u2.addr = 0;
|
|
sqe.u1.addr2 = 0;
|
|
sqe.u3.accept_flags = self.flags;
|
|
}
|
|
}
|