{"id":30646,"date":"2019-10-31T21:36:42","date_gmt":"2019-10-31T18:36:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/mozilla-predstavila-vozmozhnost-ispolzovaniya-webassembly-vne-brauzera\/"},"modified":"2019-10-31T21:36:42","modified_gmt":"2019-10-31T18:36:42","slug":"mozilla-predstavila-vozmozhnost-ispolzovaniya-webassembly-vne-brauzera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/mozilla-predstavila-vozmozhnost-ispolzovaniya-webassembly-vne-brauzera","title":{"rendered":"Mozilla apresentou a possibilidade de usar WebAssembly fora do navegador","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Especialistas da Mozilla apresentaram o projeto WASI (Interface de Sistema WebAssembly), que prev\u00ea o desenvolvimento de APIs para a cria\u00e7\u00e3o de aplicativos comuns que podem ser executados fora do navegador. Desde o in\u00edcio, o foco \u00e9 a compatibilidade entre plataformas e um alto n\u00edvel de seguran\u00e7a para esses aplicativos.<\/p>\n

\"Mozilla<\/p>\n

Conforme observado, eles s\u00e3o executados em uma \"sandbox\" especial e t\u00eam acesso a arquivos, sistema de arquivos, sockets de rede, temporizadores e assim por diante. Neste caso, o programa s\u00f3 pode realizar a\u00e7\u00f5es que j\u00e1 s\u00e3o explicitamente permitidas.<\/p>\n

Considerando que o pseudoc\u00f3digo WebAssembly \u00e9 uma vers\u00e3o independente de plataforma da linguagem Assembler, o uso de JIT permitir\u00e1 alcan\u00e7ar um alto desempenho do c\u00f3digo, semelhante ao de aplicativos nativos. No momento, uma implementa\u00e7\u00e3o b\u00e1sica das APIs POSIX (arquivos, sockets, etc.) est\u00e1 dispon\u00edvel, mas ainda n\u00e3o h\u00e1 suporte para bloqueios e entrada\/sa\u00edda ass\u00edncrona. No futuro, espera-se o surgimento de m\u00f3dulos para criptografia, gr\u00e1ficos 3D, sensores e multim\u00eddia.<\/p>\n

<\/center><\/p>\n

\r\n \"Por\r\n
<\/div>\r\n <\/div><\/center><\/center><\/p>\n

Al\u00e9m disso, deve-se notar que o projeto Fastly apresentou o compilador Lucet para aplicativos WebAssembly. Ele permite a execu\u00e7\u00e3o segura de programas de terceiros em WebAssembly dentro de outros aplicativos, por exemplo, \u00e9 adequado para plugins. O pr\u00f3prio compilador \u00e9 escrito em Rust e suporta c\u00f3digo em C, Rust e TypeScript.<\/p>\n

Certamente, ainda h\u00e1 muitas perguntas sobre a seguran\u00e7a dessa abordagem. A execu\u00e7\u00e3o de c\u00f3digo em uma \"sandbox\" combina de forma estranha com o acesso \u00e0s fun\u00e7\u00f5es do sistema principal, portanto, essa quest\u00e3o ainda precisa ser esclarecida. Al\u00e9m disso, n\u00e3o est\u00e1 claro quais programas devem operar nesse modo e como seu comportamento deve ser monitorado.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
\n
Fonte: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0441\u0442\u044b \u0438\u0437 Mozilla \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u043f\u0440\u043e\u0435\u043a\u0442 WASI (WebAssembly System Interface), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 API \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043e\u0431\u044b\u0447\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0445 \u0432\u043d\u0435 \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0430. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0440\u0435\u0447\u044c \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u0438\u0434\u0451\u0442 \u043e 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