{"id":105408,"date":"2022-10-29T21:36:38","date_gmt":"2022-10-29T19:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-sqlite-dobavlena-podderzhka-wasm-dlya-ispolzovaniya-subd-v-web-brauzere"},"modified":"2022-10-29T21:36:38","modified_gmt":"2022-10-29T19:36:38","slug":"v-sqlite-dobavlena-podderzhka-wasm-dlya-ispolzovaniya-subd-v-web-brauzere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sqlite-dobavlena-podderzhka-wasm-dlya-ispolzovaniya-subd-v-web-brauzere","title":{"rendered":"SQLite-s on lisatud WASM-i tugi andmebaaside kasutamiseks veebibrauseris.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

SQLite arendajad t\u00f6\u00f6tavad projekti kallal, et rakendada raamatukogu kompileerimise v\u00f5imalus WebAssembly vahepealseks koodiks, mis suudab t\u00f6\u00f6tada veebibrauseris ja on sobilik andmebaaside haldamiseks veebirakendustest JavaScripti keeles. WebAssembly toetav kood on lisatud projekti p\u00f5hireposiiti. Erinevalt WebSQL API-st, mille aluseks on SQLite, on WASM SQLite t\u00e4ielikult eraldatud brauserist ja ei m\u00f5juta selle turvalisust (Google otsustas Chrome'is WebSQL toe l\u00f5petada p\u00e4rast mitmeid SQLite haavatavusi, mida sai kasutada r\u00fcnnakute juhtimiseks WebSQL kaudu brauserisse). <\/p>\n

Projekti eesm\u00e4rk on pakkuda t\u00f6\u00f6tavat JavaScripti m\u00e4hist, mille funktsionaalsus on sarnane SQLite API-ga. Veebiarendajatele pakutakse k\u00f5rgetasemelist objekt-orienteeritud liidest andmete t\u00f6\u00f6tlemiseks stiilis sql.js v\u00f5i Node.js, madala taseme C API m\u00e4his ja API, mis p\u00f5hineb Web Workeri mehhanismil, v\u00f5imaldades luua as\u00fcnkroonseid t\u00f6\u00f6tlejaid, mida k\u00e4itatakse eraldi niitides. Web Workeri baasil API kallal t\u00f6\u00f6tades arendatakse ka v\u00e4lja v\u00f5imalus Programmeerimisel p\u00f5hineva liidese loomine Promise'i mehhanismi kasutades, et varjata keerulisi protsesside haldamise n\u00fcansse. <\/p>\n

Web-rakendustes salvestatud andmed, mis kasutavad WASM-versiooni SQLite'ist, v\u00f5ivad olla lokaliseeritud jooksva seansi raames (kaduvad p\u00e4rast lehtede v\u00e4rskendamist) v\u00f5i salvestatud kliendi poolel (s\u00e4ilitatakse seansside vahel). P\u00fcsiva salvestamise jaoks on ette n\u00e4htud tagaplaanid, mis v\u00f5imaldavad andmete paigutamist kohalikku failis\u00fcsteemi OPFS-i (Origin-Private FileSystem, File System Access API laiendus, mis on hetkel saadaval ainult WebKit- ja Chromium-p\u00f5histes brauserites) abil ning kohalikes brauseri salvestustes, kasutades API-d window.localStorage ja window.sessionStorage. Kui kasutatakse localStorage\/sessionStorage, siis andmed peegelduvad sobivates salvestustes v\u00f5tme\/v\u00e4\u00e4rtuse formaadis; OPFS kasutamisel on ette n\u00e4htud kaks varianti: virtuaalsete failis\u00fcsteemide simulatsioon WASMFS-i abil ja eraldi rakendus sqlite3_vfs, pakkudes SQLite VFS kihti OPFS-i p\u00f5hjal. <\/p>\n

\u0414\u043b\u044f \u0441\u0431\u043e\u0440\u043a\u0438 SQLite \u0432 WASM-\u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 Emscripten (\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0441\u043e\u0431\u0440\u0430\u0442\u044c \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0435 ext\/wasm: «.\/configure —enable-all; make sqlite3.c; cd ext\/wasm; make»). \u041d\u0430 \u0432\u044b\u0445\u043e\u0434\u0435 \u0444\u043e\u0440\u043c\u0438\u0440\u0443\u044e\u0442\u0441\u044f \u0444\u0430\u0439\u043b\u044b sqlite3.js \u0438 sqlite3.wasm, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0436\u043d\u043e \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432 \u0441\u0432\u043e\u0439 JavaScript-\u043f\u0440\u043e\u0435\u043a\u0442 (\u043f\u0440\u0438\u043c\u0435\u0440 HTML \u0438 JavaScript).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 SQLite \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0432 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0439 \u043a\u043e\u0434 WebAssembly, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c\u0441\u044f \u0432 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u0438 \u043f\u0440\u0438\u0433\u043e\u0434\u043d\u044b\u0439 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0411\u0414 \u0438\u0437 web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript. \u041a\u043e\u0434 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 WebAssembly \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 \u043f\u0440\u043e\u0435\u043a\u0442\u0430. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 API WebSQL, \u0432 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043b\u0435\u0436\u0438\u0442 SQLite, WASM SQLite \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d \u043e\u0442 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105408","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47SQLite on saanud WebAssembly toe, et kasutada andmebaasi veebibrauseris | ProHoster","description":"SQLite arendajad arendavad projekti, et realiseerida teeki kompileerimise v\u00f5imalust WebAssembly vahefailikoodiks, mis suudab t\u00f6\u00f6tada veebibrauseris ja on sobiv andmebaasi haldamiseks veebirakendustes JavaScripti keeles. WebAssembly tuge toetav kood on lisatud projekti p\u00f5hireposiiti. Erinevalt WebSQL API-st, mille aluseks on SQLite, on WASM SQLite t\u00e4ielikult brauserist isoleeritud ja","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sqlite-dobavlena-podderzhka-wasm-dlya-ispolzovaniya-subd-v-web-brauzere","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 SQLite \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 WASM \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0421\u0423\u0411\u0414 \u0432 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 | ProHoster","og:description":"\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 SQLite \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0442 \u043f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0432 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0439 \u043a\u043e\u0434 WebAssembly, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c\u0441\u044f \u0432 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 \u0438 \u043f\u0440\u0438\u0433\u043e\u0434\u043d\u044b\u0439 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0411\u0414 \u0438\u0437 web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript. \u041a\u043e\u0434 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 WebAssembly \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0439 \u043f\u0440\u043e\u0435\u043a\u0442\u0430. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 API WebSQL, \u0432 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043b\u0435\u0436\u0438\u0442 SQLite, WASM SQLite \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d \u043e\u0442 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 \u0438","og:url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sqlite-dobavlena-podderzhka-wasm-dlya-ispolzovaniya-subd-v-web-brauzere","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-10-29T19:36:38+00:00","article:modified_time":"2022-10-29T19:36:38+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/105408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=105408"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/105408\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=105408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=105408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=105408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}