{"id":116100,"date":"2024-05-26T22:54:55","date_gmt":"2024-05-26T20:54:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-kazhdom-pyatom-pakete-na-yazyke-rust-ispolzuetsya-rezhim-unsafe"},"modified":"2024-05-26T22:54:55","modified_gmt":"2024-05-26T20:54:55","slug":"v-kazhdom-pyatom-pakete-na-yazyke-rust-ispolzuetsya-rezhim-unsafe","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/v-kazhdom-pyatom-pakete-na-yazyke-rust-ispolzuetsya-rezhim-unsafe","title":{"rendered":"In elke vijfde Rust-pakket wordt de unsafe modus gebruikt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

De Rust Foundation heeft statistieken gepubliceerd waaruit blijkt dat van de 127.000 significante pakketten die in de catalogus crates.io zijn gepresenteerd, meer dan 24.000 (19,11%) het sleutelwoord «unsafe» gebruiken om functies in te schakelen die onveilige interactie met geheugen in specifieke codeblokken mogelijk maken, zoals het dereferencen van pointers, het aanroepen van externe functies of het wijzigen van statische variabelen. 34,35% van de pakketten doet directe aanroepen naar functies uit andere crate-pakketten waarin de «unsafe» modus wordt gebruikt. <\/p>\n

Het wordt opgemerkt dat in de meeste gevallen het gebruik van de «unsafe» modus wordt veroorzaakt door aanroepen van code geschreven in andere talen of het aanroepen van bibliotheken in C\/C++. Het pakket met de meeste aanroepen in «unsafe» modus is het crate-pakket windows, ontwikkeld door Microsoft, dat een wrapper is voor de Windows API. Dit pakket heeft 36 miljoen downloads. Unsafe wordt ook gebruikt in de populairste pakketten syn (470 miljoen downloads), proc-macro2 (354 miljoen downloads) en libc (345 miljoen downloads). <\/p>\n

Om problemen in de code die in «unsafe» modus wordt uitgevoerd te identificeren, wordt er gewerkt aan de interpreter Miri, die in staat is om toegang buiten de grenzen van buffers, gebruik van geheugen na vrijgave, onjuist gebruik van niet-ge\u00efnitialiseerde gegevens, schending van de invariantie van basisgegevens (bijvoorbeeld het niet overeenkomen van bool met de waarden 0 of 1), schending van objecteigendomregels, het ontstaan van racecondities en geheugenlekken te detecteren.
\n
Bron: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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