46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
use portpicker::Port;
|
|
|
|
pub struct UniquePort {
|
|
vended_ports: Vec<Port>,
|
|
}
|
|
|
|
impl UniquePort {
|
|
pub fn new() -> Self {
|
|
Self {
|
|
vended_ports: vec![],
|
|
}
|
|
}
|
|
|
|
pub fn get_unused_port(&mut self) -> Option<Port> {
|
|
let mut counter = 0;
|
|
|
|
loop {
|
|
counter += 1;
|
|
if counter > 1000 {
|
|
// no luck in 1000 tries? Give up!
|
|
return None;
|
|
}
|
|
|
|
match portpicker::pick_unused_port() {
|
|
None => return None,
|
|
Some(p) => {
|
|
if self.vended_ports.contains(&p) {
|
|
log::trace!("Skipped port: {} because it is in the list of previously vended ports: {:?}", p, self.vended_ports);
|
|
continue;
|
|
} else {
|
|
log::trace!("Vending port: {}", p);
|
|
self.vended_ports.push(p);
|
|
return Some(p);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Default for UniquePort {
|
|
fn default() -> Self {
|
|
Self::new()
|
|
}
|
|
}
|