October 2024
Beginner to intermediate
344 pages
7h 44m
Korean
Content preview from 이펙티브 러스트
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191
3
장
주요 개념
아이템
17
: 공유 상태 병렬성에 주의하라
가장 과감한 형태의 공유조차도 러스트는 안전성을 보장한다.
에런 투론
Aaron
Turon
(
https://oreil.ly/wKFxX
)
공식 문서에 따르면 러스트는 ‘겁 없는 동시성 프로그래밍(
https
://
oreil
.
ly
/
R7eq9
)’을 제
공한다고 하지만, (아쉽게도) 아무리 러스트라 해도 동시성을 두려워해야 한다. 그 이유를 자
세히 알아보자.
이번 아이템에서는 여러 실행 스레드가 메모리 공유를 통해 서로 통신하는
공유 상태 병렬
성
shared
state
parallelism
에 대해 살펴본다. 어떤 언어를 사용하더라도 스레드끼리 상태를 공유하면
다음과 같은 두 가지 끔찍한 문제가 발생하기 쉽다.
●
데이터 경쟁
: 데이터가 손상될 수 있다.
●
교착 상태:
프로그램이 중단될 수 있다.
둘 다 거의 테러 수준으로 끔찍한 문제다. 실제로 두 문제가 발생했을 때 디버깅하기가 매우 어
렵다. 오류가 비결정론적으로
nondeterministically
나타나고 부하가 높은 상태에서 발생하기 쉽기 때
문에, 단위 테스트나 통합 테스트를 비롯한 그 어떠한 종류의 테스트 (아이템
30
)로도 걸러내
지 못하고 실전에서 갑자기 등장하는 경우가 많다.
이와 관련해 러스트는 엄청난 진전을 이뤘다. 이 두 가지 문제 중 하나를 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.