{"id":100941,"date":"2021-08-08T10:22:55","date_gmt":"2021-08-08T08:22:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-portiruet-chrome-dlya-os-fuchsia"},"modified":"2021-08-08T10:22:55","modified_gmt":"2021-08-08T08:22:56","slug":"google-portiruet-chrome-dlya-os-fuchsia","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/google-portiruet-chrome-dlya-os-fuchsia","title":{"rendered":"Google portuje Chrome pro OS Fuchsia","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Firma Google pracuje na poskytov\u00e1n\u00ed pln\u00fdch verz\u00ed prohl\u00ed\u017ee\u010de Chrome pro OS Fuchsia. V Fuchsia u\u017e je k dispozici prohl\u00ed\u017ee\u010dov\u00fd engine zalo\u017een\u00fd na k\u00f3du Chromium pro spou\u0161t\u011bn\u00ed odd\u011blen\u00fdch webov\u00fdch aplikac\u00ed, ale prohl\u00ed\u017ee\u010d jako samostatn\u00fd plnohodnotn\u00fd produkt pro Fuchsia nebyl dostupn\u00fd, p\u0159i\u010dem\u017e platforma se prim\u00e1rn\u011b vyv\u00edjela pro IoT a spot\u0159ebitelsk\u00e1 za\u0159\u00edzen\u00ed, jako je Nest Hub. V posledn\u00ed dob\u011b se situace zm\u011bnila a za\u010dalo se rozv\u00edjet vyu\u017eit\u00ed Fuchsia jako desktopov\u00e9 platformy. <\/p>\n

V\u010detn\u011b se vyv\u00edj\u00ed sada zm\u011bn, kter\u00e9 umo\u017e\u0148uj\u00ed dod\u00e1vku plnohodnotn\u00e9ho Chrome do Fuchsia. Po\u010d\u00e1te\u010dn\u00ed verze Chrome pro Fuchsia by m\u011bla b\u00fdt p\u0159ipravena k vyd\u00e1n\u00ed Chrome 94, kter\u00e9 je napl\u00e1nov\u00e1no na 21. z\u00e1\u0159\u00ed. Pr\u00e1ce na portov\u00e1n\u00ed prob\u00edh\u00e1 postupn\u011b \u2013 nejprve se zaji\u0161\u0165uje mo\u017enost sestaven\u00ed zjednodu\u0161en\u00e9 verze, ve kter\u00e9 jsou n\u011bkter\u00e9 funkce nahrazeny z\u00e1platami, kter\u00e9 jsou b\u011bhem portov\u00e1n\u00ed nahrazeny funk\u010dn\u00edmi implementacemi k\u00f3du zohled\u0148uj\u00edc\u00edmi specifika Fuchsia. Nap\u0159\u00edklad prob\u00edh\u00e1 adaptace syst\u00e9mov\u00e9 li\u0161ty Fuchsia, na\u010d\u00edt\u00e1n\u00ed soubor\u016f, funkce Click To Call, pr\u00e1ce s vyj\u00edmateln\u00fdmi m\u00e9dii, synchronizace, u\u017eivatelsk\u00e9 adres\u00e1\u0159e, aplikace PWA, v\u00fdstup informac\u00ed o pam\u011bti a zat\u00ed\u017een\u00ed CPU a import nastaven\u00ed z jin\u00fdch prohl\u00ed\u017ee\u010d\u016f. <\/p>\n

P\u0159ipome\u0148me, \u017ee OS Fuchsia se vyv\u00edj\u00ed firmou Google od roku 2016 s ohledem na nedostatky v oblasti \u0161k\u00e1lovatelnosti a zabezpe\u010den\u00ed, kter\u00e9 existuj\u00ed na platform\u011b Android. Syst\u00e9m je zalo\u017een na mikroj\u00e1dru Zircon, vyvinut\u00e9m na z\u00e1klad\u011b projektu LK, roz\u0161\u00ed\u0159en\u00e9ho k pou\u017eit\u00ed na r\u016fzn\u00fdch typech za\u0159\u00edzen\u00ed, v\u010detn\u011b chytr\u00fdch telefon\u016f a osobn\u00edch po\u010d\u00edta\u010d\u016f. Zircon roz\u0161i\u0159uje LK o podporu proces\u016f a sd\u00edlen\u00fdch knihoven, \u00farove\u0148 u\u017eivatele, syst\u00e9m zpracov\u00e1n\u00ed objekt\u016f a model zabezpe\u010den\u00ed zalo\u017een\u00fd na capability. Ovlada\u010de jsou implementov\u00e1ny jako dynamick\u00e9 knihovny b\u011b\u017e\u00edc\u00ed ve u\u017eivatelsk\u00e9m prostoru, kter\u00e9 jsou na\u010d\u00edt\u00e1ny procesem devhost a spravov\u00e1ny spr\u00e1vcem za\u0159\u00edzen\u00ed (devmg, Device Manager). <\/p>\n

Pro Fuchsia byl p\u0159ipraven vlastn\u00ed grafick\u00fd u\u017eivatelsk\u00fd rozhran\u00ed napsan\u00e9 jazykem Dart s vyu\u017eit\u00edm frameworku Flutter. Projekt tak\u00e9 vyv\u00edj\u00ed framework pro vytv\u00e1\u0159en\u00ed u\u017eivatelsk\u00fdch rozhran\u00ed Peridot, spr\u00e1vce bal\u00ed\u010dk\u016f Fargo, standardn\u00ed knihovnu libc, rendering syst\u00e9m Escher, Vulkan ovlada\u010d Magma, kompozitn\u00ed mana\u017eer Scenic, souborov\u00e9 syst\u00e9my MinFS, MemFS, ThinFS (FAT napsan\u00e9 v Go) a Blobfs, stejn\u011b jako spr\u00e1vce odd\u00edl\u016f FVM. Pro v\u00fdvoj aplikac\u00ed je zaji\u0161t\u011bna podpora jazyk\u016f C\/C++, Dart, v syst\u00e9mov\u00fdch komponent\u00e1ch je tak\u00e9 povoleno pou\u017eit\u00ed Rust, v s\u00ed\u0165ov\u00e9m stacku Go, a v syst\u00e9mu pro sestaven\u00ed jazyk Python. <\/p>\n

\"Google<\/center> <\/p>\n

B\u011bhem zav\u00e1d\u011bn\u00ed se pou\u017e\u00edv\u00e1 syst\u00e9mov\u00fd spr\u00e1vce, kter\u00fd zahrnuje appmgr pro vytvo\u0159en\u00ed po\u010d\u00e1te\u010dn\u00edho programov\u00e9ho prost\u0159ed\u00ed, sysmgr pro formov\u00e1n\u00ed zav\u00e1d\u011bc\u00edho prost\u0159ed\u00ed a basemgr pro nastaven\u00ed u\u017eivatelsk\u00e9ho prost\u0159ed\u00ed a organizaci p\u0159ihl\u00e1\u0161en\u00ed do syst\u00e9mu. Pro zabezpe\u010den\u00ed je nab\u00edzena pokro\u010dil\u00e1 syst\u00e9mov\u00e1 sandboxov\u00e1 izolace, ve kter\u00e9 nov\u00e9 procesy nemaj\u00ed p\u0159\u00edstup k objekt\u016fm j\u00e1dra, nemohou alokovat pam\u011b\u0165 a nemohou spou\u0161t\u011bt k\u00f3d, a pro p\u0159\u00edstup k zdroj\u016fm se pou\u017e\u00edv\u00e1 syst\u00e9m prostor\u016f n\u00e1zv\u016f, kter\u00fd ur\u010duje dostupn\u00e9 pravomoci. Platforma poskytuje framework pro vytv\u00e1\u0159en\u00ed komponent\u016f, kter\u00e9 jsou programy b\u011b\u017e\u00edc\u00edmi ve sv\u00e9m sandboxu a kter\u00e9 mohou interagovat s jin\u00fdmi komponenty prost\u0159ednictv\u00edm IPC.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u0432\u0435\u0434\u0451\u0442 \u0440\u0430\u0431\u043e\u0442\u0443 \u043f\u043e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u043f\u043e\u043b\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043e\u043a \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430 Chrome \u0434\u043b\u044f \u041e\u0421 Fuchsia. \u0412 Fuchsia \u0443\u0436\u0435 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u043d\u044b\u0439 \u0434\u0432\u0438\u0436\u043e\u043a \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b Chromium \u0434\u043b\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u044b\u0439 web-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043d\u043e \u0431\u0440\u0430\u0443\u0437\u0435\u0440 \u043a\u0430\u043a \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0434\u0443\u043a\u0442 \u0434\u043b\u044f Fuchsia \u0431\u044b\u043b \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d, \u0430 \u0441\u0430\u043c\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0430 \u0432 \u043f\u0435\u0440\u0432\u0443\u044e \u043e\u0447\u0435\u0440\u0435\u0434\u044c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0430\u0441\u044c \u0434\u043b\u044f IoT \u0438 \u043f\u043e\u0442\u0440\u0435\u0431\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a Nest Hub. \u041f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0435 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