fn add(&mut self, s: S) {
        self.current.inc(&s);

        if self.current > self.limit {
            // lock all members
            let mut members: Vec<_> = self.members.values().map(|member| member.lock()).collect();

            // evict data until we are below the limit
            while self.current > self.limit {
                let mut options: Vec<_> = members
                    .iter_mut()
                    .filter_map(|member| member.could_remove().map(|t| (t, member)))
                    .collect();
                options.sort_by_key(|(t, _member)| *t);

                let (_t, member) = options.first_mut().expect("accounting out of sync");
                let s = member.remove_oldest();
                self.current.dec(&s);
            }
        }
    }
/// Add used resource too pool.
Add used resource too pool.
Add used resource too pool .
fn add(&mut self, s: S) {
        self.current.inc(&s);
        if self.current > self.limit {
            // lock all members
            let mut members: Vec<_> = self.members.values().map(|member| member.lock()).collect();
            // evict data until we are below the limit
            while self.current > self.limit {
                let mut options: Vec<_> = members
                    .iter_mut()
                    .filter_map(|member| member.could_remove().map(|t| (t, member)))
                    .collect();
                options.sort_by_key(|(t, _member)| *t);
                let (_t, member) = options.first_mut().expect("accounting out of sync");
                let s = member.remove_oldest();
                self.current.dec(&s);
            }
        }
    }
fn add ( & mut self , s : S ) { self . current . inc ( & s ) ; if self . current > self . limit { // lock all members let mut members : Vec < _ > = self . members . values ( ) . map ( | member | member . lock ( ) ) . collect ( ) ; // evict data until we are below the limit while self . current > self . limit { let mut options : Vec < _ > = members . iter_mut ( ) . filter_map ( | member | member . could_remove ( ) . map ( | t | ( t , member ) ) ) . collect ( ) ; options . sort_by_key ( | ( t , _member ) | * t ) ; let ( _t , member ) = options . first_mut ( ) . expect ( " " ) ; let s = member . remove_oldest ( ) ; self . current . dec ( & s ) ; } } }
Add used resource too pool.
Add used resource too pool .
&mut self
s
S
&mut self
s
S