์Šค๋ ˆ๋“œ

๋Ÿฌ์ŠคํŠธ์˜ ์Šค๋ ˆ๋“œ๋Š” ๋‹ค๋ฅธ ์–ธ์–ด์˜ ์Šค๋ ˆ๋“œ์™€ ์œ ์‚ฌํ•˜๊ฒŒ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค:

use std::thread;
use std::time::Duration;

fn main() {
    thread::spawn(|| {
        for i in 1..10 {
            println!("Count in thread: {i}!");
            thread::sleep(Duration::from_millis(5));
        }
    });

    for i in 1..5 {
        println!("Main thread: {i}");
        thread::sleep(Duration::from_millis(5));
    }
}
  • ์Šค๋ ˆ๋“œ๋Š” ๋ชจ๋‘ ๋ฐ๋ชฌ ์Šค๋ ˆ๋“œ์ž…๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๋ฉ”์ธ ์Šค๋ ˆ๋“œ๋Š” ์ด ์Šค๋ ˆ๋“œ๋“ค์ด ๋๋‚˜๊ธฐ๋ฅผ ๊ธฐ๋‹ค๋ฆฌ์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
  • ํ•œ ์Šค๋ ˆ๋“œ์—์„œ ๋ฐœ์ƒํ•œ ํŒจ๋‹‰์€ ๋‹ค๋ฅธ ์Šค๋ ˆ๋“œ์—๊ฒŒ ์˜ํ–ฅ์„ ๋ผ์น˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
    • ํŒจ๋‹‰์€ ์ถ”๊ฐ€์ •๋ณด(ํŽ˜์ด๋กœ๋“œ)๋ฅผ ํฌํ•จํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์ด๋Š” downcast_ref๋กœ ํ’€์–ด๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

ํ‚ค ํฌ์ธํŠธ:

  • ๋ฉ”์ธ ์Šค๋ ˆ๋“œ๊ฐ€ ์ž์‹ ์Šค๋ ˆ๋“œ๋ฅผ ๊ธฐ๋‹ค๋ฆฌ์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์— ์ž์‹ ์Šค๋ ˆ๋“œ์˜ for๋ฌธ์€ 10๊นŒ์ง€ ๊ฐ€์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

  • ๋งŒ์•ฝ ๋ฉ”์ธ ์Šค๋ ˆ๋“œ๊ฐ€ ์ž์‹ ์Šค๋ ˆ๋“œ๊ฐ€ ๋๋‚  ๋•Œ ๊นŒ์ง€ ๊ธฐ๋‹ค๋ฆฌ๊ธฐ๋ฅผ ์›ํ•œ๋‹ค๋ฉด let handle = thread::spawn(...)์œผ๋กœ ์Šค๋ ˆ๋“œ๋ฅผ ์„ ์–ธํ•œ ํ›„ handle.join()๋กœ ์—ฐ๊ฒฐํ•˜์—ฌ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค.

  • ์ž์‹ ์Šค๋ ˆ๋“œ์—์„œ ๋ฐœ์ƒํ•œ ํŒจ๋‹‰์ด ๋ฉ”์ธ ์Šค๋ ˆ๋“œ์—๋Š” ์˜ํ–ฅ์„ ์ฃผ์ง€ ์•Š์Œ์„ ํ™•์ธํ•˜์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค.

  • handle.join()์‚ฌ์šฉ์‹œ Result ๋ฐ˜ํ™˜๊ฐ’์„ ํ†ตํ•ด ํŒจ๋‹‰์˜ ์ถ”๊ฐ€์ •๋ณด์— ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด ์‹œ์ ์—์„œ Any์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐ๋ฅผ ํ•ด ๋ณด๋ฉด ์ข‹์Šต๋‹ˆ๋‹ค.