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use std::marker::PhantomData;
use std::sync::mpsc::{channel as mpsc_channel, Sender as MpscSender};
use std::thread::JoinHandle as ThreadHandle;
pub struct Work<UserData: Send + Sync + 'static>
{
pub func: fn(UserData),
pub user_data: UserData,
}
#[derive(Debug)]
pub struct WorkQueue<UserData: Send + Sync + 'static>
{
work_sender: MpscSender<Work<UserData>>,
_thread: ThreadHandle<()>,
_pd: PhantomData<UserData>,
}
impl<UserData: Send + Sync + 'static> WorkQueue<UserData>
{
pub fn new() -> Self
{
let (work_sender, work_receiver) = mpsc_channel::<Work<UserData>>();
Self {
work_sender,
_thread: std::thread::spawn(move || {
let work_receiver = work_receiver;
while let Ok(work) = work_receiver.recv() {
(work.func)(work.user_data);
}
}),
_pd: PhantomData,
}
}
pub fn add_work(&self, work: Work<UserData>)
{
if self.work_sender.send(work).is_err() {
tracing::error!("Cannot add work to work queue. Work queue thread is dead");
}
}
}
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