Enclose

A convenient macro for cloning values into a closure.

Use

use std::thread;
use std::sync::Arc;
use std::sync::Mutex;

let v = Arc::new(Mutex::new( 0 ));
let thread = thread::spawn( enclose!((v) move || {
		let mut v_lock = match v.lock() {
				Ok(a) => a,
				Err(e) => e.into_inner(),
		};
		*v_lock += 1;
}));

thread.join().unwrap();
{
		let v_lock = match v.lock() {
				Ok(a) => a,
				Err(e) => e.into_inner(),
		};
		assert_eq!(*v_lock, 1);
}

Use 2

use std::thread;
use std::sync::Arc;
use std::sync::Mutex;
use std::sync::RwLock;

let v = Arc::new(Mutex::new( 0 ));
let v2 = Arc::new(RwLock::new( (0, 2, 3, 4) ));

let count_thread = 5;
let mut wait_all = Vec::with_capacity(count_thread);

for _a in 0..count_thread {
		wait_all.push({
				thread::spawn( enclose!((v, v2) move || {
						let mut v_lock = match v.lock() {
								Ok(a) => a,
								Err(e) => e.into_inner(),
						};
						*v_lock += 1;

						drop( v2 ); //ignore warning
				}))
		});
}
for a in wait_all {
		a.join().unwrap();
}
{	
		//Test result
		let v_lock = match v.lock() {
				Ok(a) => a,
				Err(e) => e.into_inner(),
		};
		assert_eq!(*v_lock, 5);
}

License

Copyright 2018 #UlinProject Денис Котляров

Licensed under the MIT License