drop_guard

A RAII that executes you function whenever the wrapped object gets dropped.

Use cases

Joining threads when they fall out of scope:

extern crate drop_guard;

use drop_guard::DropGuard;

use std::thread::{spawn, sleep};
use std::time::guard;

fn main() {
    let _ = guard(spawn(move || {
                            sleep(Duration::from_secs(2));
                            println!("println! from thread");
                        })
                        , |join_handle| join_handle.join().unwrap());
    
    println!("Waiting for thread ...");
}

Examples

Feel free to run the included examples:

cargo run --example drop
cargo run --example rainbow
cargo run --example thread
cargo run --example threadpool

Contribute

Contributions are very welcome. Feel free to bring your own ideas or continue one of these:

• Add example/test with panic between guard and drop
• Add example/test with panic in guard closure
• Add minimal rustc version

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your discression.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.