{"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\/da\/blog\/news\/os-fuchsia-perehodit-na-stadiyu-testirovaniya-na-sotrudnikah-google","title":{"rendered":"OS Fuchsia g\u00e5r ind i testfasen blandt Google-medarbejdere","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google har \u00e6ndringer<\/a><\/noindex>, der viser overgangen af operativsystemet Fuchsia<\/a><\/noindex> i den afsluttende interne testfase «dogfooding<\/a><\/noindex>«, som indeb\u00e6rer brugen af produktet i medarbejdernes daglige aktiviteter, inden det g\u00f8res tilg\u00e6ngeligt for almindelige brugere. I den angivne fase er produktet er<\/a><\/noindex> er produktet i en tilstand, der allerede har gennemg\u00e5et grundl\u00e6ggende testning af specialiserede kvalitetsvurderingsteams. Inden produktet leveres til masserne, gennemf\u00f8res ogs\u00e5 en afsluttende kontrol p\u00e5 deres ansatte, som ikke er involveret i udviklingen.<\/p>\n

I klienten til systemet til administration af opdateringer Omaha<\/a><\/noindex>, hvor udgivelser af Chrome og Chrome OS testes, tilf\u00f8jet<\/a><\/noindex> komponenten fuchsia.cobalt.SystemDataUpdater og en vejledning til overf\u00f8rsel af enheder til den nye gren «dogfood-release» ved hj\u00e6lp af v\u00e6rkt\u00f8jet fx<\/a><\/noindex> (motsvarende adb for Fuchsia). I systemet til kontinuerlig integration er tilf\u00f8jet<\/a><\/noindex> opbygges bootloaderen til dogfood-grenen, og i Fuchsia-platformen inkluderet<\/a><\/noindex> der er separate metrics til vurdering af testresultaterne.<\/p>\n

I kommentarerne til \u00e6ndringerne i Fuchsia n\u00e6vnes<\/a><\/noindex> to links til levering af opdateringer fuchsia-updates.googleusercontent.com og arm64.dogfood-release.astro.fuchsia.com, hvor den anden link Astro er kodenavnet for den intelligente sk\u00e6rm Google Nest Hub<\/a><\/noindex>, som angiveligt bruges af Google-ansatte som prototype til testning
\nFuchsia i stedet for den normale Cast Platform-firmware. Gr\u00e6nsefladen p\u00e5 Nest Hub er bygget p\u00e5 applikationen Dragonglass, som bruger Flutter-rammen, der ogs\u00e5 underst\u00f8ttes i Fuchsia.<\/p>\n

Lad os minde om, at under Fuchsia-projektet udvikler Google et universelt operativsystem, der kan k\u00f8re p\u00e5 alle typer enheder, fra arbejdsstationer og smartphones til indlejrede og forbrugerelektronik. Udviklingen tages hensyn til erfaringerne fra oprettelsen af Android-platformen og adresserer manglerne inden for skalering og sikkerhed. <\/p>\n

Systemet er baseret p\u00e5 et mikrokernel Zircon<\/a><\/noindex>, baseret p\u00e5 resultaterne fra projektet LK<\/a><\/noindex>, udvidet til brug p\u00e5 forskellige klasser af enheder, inklusive smartphones og personlige computere. Zircon udvider LK med st\u00f8tte til processer og delte biblioteker<\/a><\/noindex>, brugergr\u00e6nseflade, objekth\u00e5ndteringssystem og en sikkerhedsmodel baseret p\u00e5 capabilities. Drivere implementeres<\/a><\/noindex> som fungerende dynamiske biblioteker i brugerens rum, der indl\u00e6ses af devhost-processen og styres af enhedsh\u00e5ndtereren (devmg, Device Manager).<\/p>\n

Til Fuchsia er forberedt<\/a><\/noindex> egen grafisk brugergr\u00e6nseflade<\/a><\/noindex>, skrevet i Dart-sprog ved brug af Flutter-rammev\u00e6rket. Projektet udvikler ogs\u00e5 rammev\u00e6rket til opbygning af brugergr\u00e6nseflader Peridot, pakkeh\u00e5ndtereren Fargo, den standardbibliotek libc<\/a><\/noindex>, renderingssystemet Escher<\/a><\/noindex>, Vulkan-driveren Magma<\/a><\/noindex>, kompositmanager Scenic<\/a><\/noindex>, filsystemerne MinFS, MemFS, ThinFS (FAT i Go-sprog) og Blobfs, samt partitionsmanageren FVM. Til udvikling af applikationer tilbydes<\/a><\/noindex> st\u00f8tte til C\/C++, Dart, i systemkomponenterne er brugen af Rust ogs\u00e5 tilladt, i netv\u00e6rksstakken Go, og i buildsystemet Python.<\/p>\n

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

Under opstart kun 14,3% af webstederne i hele verden.<\/a><\/noindex> systemmanageren, der inkluderer
\nappmgr til at oprette det indledende programmeringsmilj\u00f8, sysmgr til at dannes det boot-milj\u00f8 og basemgr til at konfigurere brugerens milj\u00f8 og organisere login. For kompatibilitet med Linux i Fuchsia tilbys<\/a><\/noindex> Machina-biblioteket, som muligg\u00f8r k\u00f8rsel af Linux-programmer i en s\u00e6rlig isoleret virtuel maskine, dannet ved hj\u00e6lp af hypervisoren baseret p\u00e5 Zircon-kernen og Virtio-specifikationerne, ligesom det er organiseret<\/a><\/noindex> k\u00f8rsel af Linux-applikationer i Chrome OS. <\/p>\n

For at sikre sikkerheden tilbydes et avanceret system for sandbox-isolering<\/a><\/noindex>, hvor nye processer ikke har adgang til kerneobjekter, ikke kan allokere hukommelse og ikke kan k\u00f8re kode, og for adgang til ressourcer anvendes et system af navnerum<\/a><\/noindex>, der definerer de tilg\u00e6ngelige bef\u00f8jelser. Platformen tilbyder<\/a><\/noindex> er et rammev\u00e6rk til oprettelse af komponenter, der er programmer, der k\u00f8res i deres egen sandbox, som kan interagere med andre komponenter via IPC.<\/p>\n

<\/a><\/noindex><\/p>\n

Kilde: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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