solana_sdk/
exit.rs

1//! Used by validators to run events on exit.
2
3use std::fmt;
4
5#[derive(Default)]
6pub struct Exit {
7    exited: bool,
8    exits: Vec<Box<dyn FnOnce() + Send + Sync>>,
9}
10
11impl Exit {
12    pub fn register_exit(&mut self, exit: Box<dyn FnOnce() + Send + Sync>) {
13        if self.exited {
14            exit();
15        } else {
16            self.exits.push(exit);
17        }
18    }
19
20    pub fn exit(&mut self) {
21        self.exited = true;
22        for exit in self.exits.drain(..) {
23            exit();
24        }
25    }
26}
27
28impl fmt::Debug for Exit {
29    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
30        write!(f, "{} exits", self.exits.len())
31    }
32}
solana_sdk/exit.rs

solana_sdk/
exit.rs
