Enclose

A convenient macro for cloning values into a closure.

Use

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

use enclose::enclose;

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;

use enclose::enclose;


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);
}

Use 3

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

use enclose::enclose;

let v = Arc::new(Mutex::new( 0 ));
let thread = thread::spawn( enclose!((v => MY_LOCKER) move || {
	let mut v_lock = match MY_LOCKER.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);
}

License

Copyright 2019 #UlinProject (Denis Kotlyarov) Денис Котляров

Licensed under the MIT License