{"id":72185,"date":"2020-03-02T16:19:28","date_gmt":"2020-03-02T13:19:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/os-fuchsia-perehodit-na-stadiyu-testirovaniya-na-sotrudnikah-google"},"modified":"2020-03-03T16:10:19","modified_gmt":"2020-03-03T13:10:19","slug":"os-fuchsia-perehodit-na-stadiyu-testirovaniya-na-sotrudnikah-google","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/os-fuchsia-perehodit-na-stadiyu-testirovaniya-na-sotrudnikah-google","title":{"rendered":"OS Fuchsia p\u0159ech\u00e1z\u00ed do f\u00e1ze testov\u00e1n\u00ed na zam\u011bstnanc\u00edch Google","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Google provedla zm\u011bny<\/a><\/noindex>, kter\u00e9 sv\u011bd\u010d\u00ed o p\u0159echodu opera\u010dn\u00edho syst\u00e9mu Fuchsia<\/a><\/noindex> do f\u00e1ze fin\u00e1ln\u00edho intern\u00edho testov\u00e1n\u00ed «dogfooding<\/a><\/noindex>«, zahrnuj\u00edc\u00ed vyu\u017eit\u00ed produktu v ka\u017edodenn\u00ed \u010dinnosti zam\u011bstnanc\u016f, p\u0159ed jeho zp\u0159\u00edstupn\u011bn\u00edm b\u011b\u017en\u00fdm u\u017eivatel\u016fm. Ve zm\u00edn\u011bn\u00e9 f\u00e1zi produkt se nach\u00e1z\u00ed<\/a><\/noindex> ve stavu, kter\u00fd ji\u017e pro\u0161el z\u00e1kladn\u00edm testov\u00e1n\u00edm speci\u00e1ln\u00edmi t\u00fdmy pro hodnocen\u00ed kvality. P\u0159ed t\u00edm, ne\u017e se produkt dod\u00e1v\u00e1 \u0161irok\u00e9 ve\u0159ejnosti, se prov\u00e1d\u00ed dodate\u010dn\u00e1 z\u00e1v\u011bre\u010dn\u00e1 kontrola na zam\u011bstnanc\u00edch, kte\u0159\u00ed se na v\u00fdvoji nepod\u00edleli.<\/p>\n

V klientovi syst\u00e9mu spr\u00e1vy dod\u00e1v\u00e1n\u00ed aktualizac\u00ed Omaha<\/a><\/noindex>, v n\u011bm\u017e se testuj\u00ed verze Chrome a Chrome OS, p\u0159id\u00e1n<\/a><\/noindex> komponent fuchsia.cobalt.SystemDataUpdater a byla navr\u017eena instrukce k p\u0159echodu za\u0159\u00edzen\u00ed na novou v\u011btev «dogfood-release» pomoc\u00ed n\u00e1stroje fx<\/a><\/noindex> (ekvivalent adb pro Fuchsia). V syst\u00e9mu kontinu\u00e1ln\u00ed integrace byly p\u0159id\u00e1ny<\/a><\/noindex> se sestavuje bootloader pro v\u011btev dogfood, a v platform\u011b Fuchsia byly zahrnuty<\/a><\/noindex> existuj\u00ed samostatn\u00e9 metriky pro hodnocen\u00ed v\u00fdsledk\u016f testov\u00e1n\u00ed.<\/p>\n

V koment\u00e1\u0159\u00edch k zm\u011bn\u00e1m ve Fuchsia byly zm\u00edn\u011bny<\/a><\/noindex> dv\u011b odkazy pro dod\u00e1v\u00e1n\u00ed aktualizac\u00ed fuchsia-updates.googleusercontent.com a arm64.dogfood-release.astro.fuchsia.com, p\u0159i\u010dem\u017e v druh\u00e9m odkazu je Astro k\u00f3dov\u00e9 jm\u00e9no chytr\u00e9ho displeje Google Nest Hub<\/a><\/noindex>, kter\u00fd z\u0159ejm\u011b pou\u017e\u00edvaj\u00ed zam\u011bstnanci Google jako prototyp pro testov\u00e1n\u00ed
\nFuchsia m\u00edsto standardn\u00edho firmwaru Cast Platform. Rozhran\u00ed Nest Hub je postaveno na aplikaci Dragonglass, kter\u00e1 vyu\u017e\u00edv\u00e1 framework Flutter, jen\u017e je tak\u00e9 podporov\u00e1n v Fuchsia.<\/p>\n

P\u0159ipom\u00edn\u00e1me, \u017ee v r\u00e1mci projektu Fuchsia vyv\u00edj\u00ed spole\u010dnost Google univerz\u00e1ln\u00ed opera\u010dn\u00ed syst\u00e9m, kter\u00fd je schopen fungovat na jak\u00fdchkoli typech za\u0159\u00edzen\u00ed, od pracovn\u00edch stanic a chytr\u00fdch telefon\u016f po vestav\u011bn\u00e1 a spot\u0159ebitelsk\u00e1 za\u0159\u00edzen\u00ed. V\u00fdvoj se zakl\u00e1d\u00e1 na zku\u0161enostech s vytv\u00e1\u0159en\u00edm platformy Android a zohled\u0148uje nedostatky v oblasti \u0161k\u00e1lovatelnosti a zabezpe\u010den\u00ed. <\/p>\n

Syst\u00e9m je zalo\u017een na mikro-j\u00e1dru Zircon<\/a><\/noindex>, zalo\u017een\u00e9m na z\u00e1kladech projektu LK<\/a><\/noindex>, roz\u0161\u00ed\u0159en\u00e9m pro 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 podporou proces\u016f a sd\u00edlen\u00fdch knihoven<\/a><\/noindex>, u\u017eivatelskou \u00farovn\u00ed, syst\u00e9mem zpracov\u00e1n\u00ed objekt\u016f a modelem zaji\u0161t\u011bn\u00ed bezpe\u010dnosti na z\u00e1klad\u011b capability. Ovlada\u010de jsou implementov\u00e1ny<\/a><\/noindex> ve form\u011b dynamick\u00fdch knihoven spu\u0161t\u011bn\u00fdch v 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 p\u0159ipraven<\/a><\/noindex> vlastn\u00ed grafick\u00e9 rozhran\u00ed<\/a><\/noindex>, napsan\u00e9 v jazyce Dart za pou\u017eit\u00ed r\u00e1mce Flutter. Projekt tak\u00e9 vyv\u00edj\u00ed r\u00e1mec pro vytv\u00e1\u0159en\u00ed u\u017eivatelsk\u00fdch rozhran\u00ed Peridot, bal\u00ed\u010dkov\u00fd spr\u00e1vce Fargo, standardn\u00ed knihovnu libc<\/a><\/noindex>, renderingov\u00fd syst\u00e9m Escher<\/a><\/noindex>, Vulkanov\u00fd ovlada\u010d Magma<\/a><\/noindex>, kompozitn\u00ed spr\u00e1vce Scenic<\/a><\/noindex>, souborov\u00e9 syst\u00e9my MinFS, MemFS, ThinFS (FAT v jazyce Go) a Blobfs, stejn\u011b jako spr\u00e1vce diskov\u00fdch odd\u00edl\u016f FVM. Pro v\u00fdvoj aplikac\u00ed je poskytov\u00e1na<\/a><\/noindex> podpora jazyk\u016f C\/C++, Dart, v syst\u00e9mov\u00fdch komponent\u00e1ch je tak\u00e9 povoleno pou\u017e\u00edv\u00e1n\u00ed Rust, v s\u00ed\u0165ov\u00e9m stacku Go a v syst\u00e9mu sestaven\u00ed jazyka Python.<\/p>\n

\"OS<\/a><\/noindex><\/center><\/p>\n

B\u011bhem spou\u0161t\u011bn\u00ed se pou\u017e\u00edv\u00e1<\/a><\/noindex> syst\u00e9mov\u00fd spr\u00e1vce, kter\u00fd zahrnuje
\nappmgr pro vytvo\u0159en\u00ed po\u010d\u00e1te\u010dn\u00edho programov\u00e9ho prost\u0159ed\u00ed, sysmgr pro vytv\u00e1\u0159en\u00ed spou\u0161t\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 kompatibilitu s Linuxem nab\u00edz\u00ed Fuchsia je nab\u00edzena<\/a><\/noindex> knihovnu Machina, kter\u00e1 umo\u017e\u0148uje spou\u0161t\u011bt linuxov\u00e9 programy v speci\u00e1ln\u00ed izolovan\u00e9 virtu\u00e1ln\u00ed ma\u0161in\u011b, vytv\u00e1\u0159enou pomoc\u00ed hypervizoru zalo\u017een\u00e9ho na j\u00e1d\u0159e Zircon a specifikac\u00edch Virtio, podobn\u011b jak je organizov\u00e1no<\/a><\/noindex> spou\u0161t\u011bn\u00ed linuxov\u00fdch aplikac\u00ed v Chrome OS. <\/p>\n

Pro zaji\u0161t\u011bn\u00ed bezpe\u010dnosti nab\u00edz\u00ed pokro\u010dil\u00fd syst\u00e9m sandboxov\u00e9 izolace<\/a><\/noindex>, ve kter\u00e9m 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 prost\u0159edk\u016fm se pou\u017e\u00edv\u00e1 syst\u00e9m jmenov\u00fdch prostor\u016f<\/a><\/noindex>, kter\u00fd definuje dostupn\u00e9 opr\u00e1vn\u011bn\u00ed. Platforma poskytuje<\/a><\/noindex> je r\u00e1mec pro vytv\u00e1\u0159en\u00ed komponent, kter\u00e9 jsou programy spu\u0161t\u011bn\u00fdmi ve vlastn\u00edm sandboxu, kter\u00e9 mohou komunikovat s jin\u00fdmi komponenty prost\u0159ednictv\u00edm IPC.<\/p>\n

<\/a><\/noindex><\/p>\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\u043d\u0435\u0441\u043b\u0430 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f, \u0441\u0432\u0438\u0434\u0435\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Fuchsia \u043d\u0430 \u0441\u0442\u0430\u0434\u0438\u044e \u0444\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u043d\u0438\u044f «dogfooding«, \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0443\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430 \u0432 \u043f\u043e\u0432\u0441\u0435\u0434\u043d\u0435\u0432\u043d\u043e\u0439 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