berkus
/
actix-net
mirror of https://github.com/fafhrd91/actix-net
1
0
Fork 0
Code Issues Releases Wiki Activity

Fix bug where timed out socket would register itself when server in backpressure state.

This commit is contained in:
fakeshadow 2021-04-01 00:00:56 +08:00
parent 8becb0db70
commit 51d9d4c776
1 changed files with 28 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
actix-server/src/accept.rs
View File

@ -238,16 +238,22 @@ impl Accept {
fn process_timer(&self, sockets: &mut Slab<ServerSocketInfo>) {
let now = Instant::now();
sockets.iter_mut().for_each(|(token, info)| {
// only the ServerSocketInfo have an associate timeout value was de registered.
if let Some(inst) = info.timeout.take() {
if now > inst {
self.register_logged(token, info);
} else {
sockets
.iter_mut()
// Only the ServerSocketInfo have an associate timeout value was de registered.
.filter(|(token, info)| info.timeout.is_some())
.for_each(|(token, info)| {
let inst = info.timeout.take().unwrap();
if now < inst {
info.timeout = Some(inst);
} else if !self.backpressure {
self.register_logged(token, info);
}
}
});
// Drop the timeout if server is in backpressure and socket timeout is expired.
// When server is recovered from backpressure it would register all socket without
// a timeout value so this socket register would be delayed till then.
});
}
#[cfg(not(target_os = "windows"))]
@ -301,20 +307,22 @@ impl Accept {
}
fn maybe_backpressure(&mut self, sockets: &mut Slab<ServerSocketInfo>, on: bool) {
if self.backpressure {
if !on {
// Only operate when server is in a different backpressure than the given flag.
if self.backpressure != on {
if on {
self.backpressure = true;
// TODO: figure out if timing out sockets can be safely de-registered twice.
self.deregister_all(sockets);
} else {
self.backpressure = false;
for (token, info) in sockets.iter_mut() {
if info.timeout.is_some() {
// socket will attempt to re-register itself when its timeout completes
continue;
}
self.register_logged(token, info);
}
sockets
.iter_mut()
// Only operate on socket without associated timeout.
// Socket info with it would attempt to re-register itself when its timeout
// expire.
.filter(|(_, info)| info.timeout.is_none())
.for_each(|(token, info)| self.register_logged(token, info));
}
} else if on {
self.backpressure = true;
self.deregister_all(sockets);
}
}