{"id":104497,"date":"2022-06-24T09:36:39","date_gmt":"2022-06-24T07:36:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-nachal-rasprostranenie-proshivki-na-baze-os-fuchsia-dlya-ustrojstv-nest-hub-max"},"modified":"2022-06-24T09:36:39","modified_gmt":"2022-06-24T07:36:40","slug":"google-nachal-rasprostranenie-proshivki-na-baze-os-fuchsia-dlya-ustrojstv-nest-hub-max","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/google-nachal-rasprostranenie-proshivki-na-baze-os-fuchsia-dlya-ustrojstv-nest-hub-max","title":{"rendered":"O Google come\u00e7ou a distribuir o firmware baseado no sistema operacional Fuchsia para dispositivos Nest Hub Max","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A empresa Google come\u00e7ou a distribuir um novo firmware baseado no sistema operacional Fuchsia para os quadros digitais inteligentes Nest Hub Max, lan\u00e7ados desde 2019. Na primeira fase, o firmware baseado em Fuchsia come\u00e7ar\u00e1 a ser enviado para os participantes do programa Google Preview Program, e se n\u00e3o surgirem problemas inesperados durante a implementa\u00e7\u00e3o experimental, o firmware ser\u00e1 aplicado tamb\u00e9m aos dispositivos de outros usu\u00e1rios do Nest Hub Max. <\/p>\n

O quadro digital Nest Hub Max se tornou o segundo dispositivo consumer a ser equipado com o sistema operacional Fuchsia. O primeiro a receber o firmware baseado em Fuchsia foi o modelo Nest Hub, que possui uma tela menor e n\u00e3o tem c\u00e2mera embutida, utilizada para o sistema de vigil\u00e2ncia e seguran\u00e7a. Apesar da mudan\u00e7a no sistema operacional do firmware, a interface do usu\u00e1rio e a funcionalidade permanecem totalmente intactas, e os usu\u00e1rios finais n\u00e3o devem perceber diferen\u00e7as, pois a interface \u00e9 constru\u00edda com base no framework Flutter e abstra\u00edda dos componentes de baixo n\u00edvel. Anteriormente, os dispositivos Nest Hub Max, que combinam fun\u00e7\u00f5es de quadro para fotos, sistema multim\u00eddia e interface para controle de casa inteligente, utilizavam um firmware baseado na camada Cast e n\u00facleo Linux. <\/p>\n

O sistema operacional Fuchsia est\u00e1 sendo desenvolvido pela empresa Google desde 2016, levando em considera\u00e7\u00e3o as defici\u00eancias em escalabilidade e seguran\u00e7a existentes na plataforma Android. O sistema \u00e9 baseado em um microkernel chamado Zircon, que se baseia em desenvolvimentos do projeto LK, estendido para uso em diferentes classes de dispositivos, incluindo smartphones e computadores pessoais. O Zircon expande o LK com suporte a processos e bibliotecas compartilhadas, n\u00edvel de usu\u00e1rio, sistema de manipula\u00e7\u00e3o de objetos e modelo de seguran\u00e7a baseado em capabilities. Os drivers s\u00e3o implementados como bibliotecas din\u00e2micas operando no espa\u00e7o do usu\u00e1rio, carregadas pelo processo devhost e gerenciadas pelo gerente de dispositivos (devmg, Device Manager). <\/p>\n

Para o Fuchsia, foi desenvolvido uma interface gr\u00e1fica pr\u00f3pria, escrita na linguagem Dart usando o framework Flutter. O projeto tamb\u00e9m desenvolve o framework Peridot para a cria\u00e7\u00e3o de interfaces de usu\u00e1rio, o gerenciador de pacotes Fargo, a biblioteca padr\u00e3o libc, o sistema de renderiza\u00e7\u00e3o Escher, o driver Vulkan Magma, o gerenciador de composi\u00e7\u00e3o Scenic, os sistemas de arquivos MinFS, MemFS, ThinFS (FAT na linguagem Go) e Blobfs, assim como o gerenciador de parti\u00e7\u00f5es FVM. Para o desenvolvimento de aplicativos, h\u00e1 suporte para as linguagens C\/C++, Dart, e nos componentes do sistema tamb\u00e9m \u00e9 permitido o uso de Rust, no stack de rede Go, e no sistema de constru\u00e7\u00e3o da linguagem Python. <\/p>\n

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

Durante o processo de inicializa\u00e7\u00e3o, utiliza-se um gerenciador de sistema, que inclui o appmgr para criar o ambiente de programa inicial, sysmgr para configurar o ambiente de inicializa\u00e7\u00e3o e basemgr para definir o ambiente do usu\u00e1rio e organizar o login no sistema. Para garantir a seguran\u00e7a, \u00e9 oferecido um avan\u00e7ado sistema de isolamento sandbox, onde novos processos n\u00e3o t\u00eam acesso aos objetos do kernel, n\u00e3o podem alocar mem\u00f3ria e n\u00e3o podem executar c\u00f3digo, e para acesso a recursos \u00e9 aplicada uma sistema de espa\u00e7os de nome, determinando as permiss\u00f5es dispon\u00edveis. A plataforma fornece um framework para a cria\u00e7\u00e3o de componentes, que s\u00e3o programas que s\u00e3o executados em seu pr\u00f3prio sandbox e podem interagir uns com os outros atrav\u00e9s de IPC.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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