{"id":119917,"date":"2024-09-23T15:43:09","date_gmt":"2024-09-23T13:43:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si"},"modified":"2024-09-23T15:43:09","modified_gmt":"2024-09-23T13:43:09","slug":"v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si","title":{"rendered":"La plataforma Bun de JavaScript ha a\u00f1adido soporte para llamar a c\u00f3digo en C.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>En la plataforma Bun, desarrollada como alternativa a Node.js y destinada a la ejecuci\u00f3n aislada de aplicaciones escritas en JavaScript, JSX y TypeScript, se ha implementado una funci\u00f3n experimental que permite compilar y ejecutar controladores escritos en C. Anteriormente, para llamar a c\u00f3digo de bajo nivel era necesario crear complementos N-API o compilar el c\u00f3digo en formato WebAssembly (WASM\/WASI), lo que complicaba el desarrollo y impon\u00eda ciertas limitaciones. Ahora, el c\u00f3digo en C se puede incrustar directamente en JavaScript y compilar sobre la marcha utilizando el compilador TinyCC, as\u00ed como enlazar bibliotecas din\u00e1micamente.           import { cc } from 'bun:ffi';       export const {       symbols: { hello },     } = cc({       source: '.\/hello.c',       symbols: {         hello: {           returns: 'void',           args: [],         },       },     });       hello();      <\/p>\n<p>Para trabajar con C se utiliza la capa bun:ffi, que compila el c\u00f3digo fuente en instrucciones de m\u00e1quina, lo inserta en la memoria durante la ejecuci\u00f3n y garantiza la conversi\u00f3n autom\u00e1tica de tipos de datos entre JavaScript y C. Se se\u00f1ala que los costos al acceder al c\u00f3digo C compilado se han minimizado, lo que resulta en un retraso de aproximadamente 2 nanosegundos por cada llamada a funciones externas de C. Como ejemplo, se muestra c\u00f3mo se puede acceder directamente a bibliotecas FFmpeg para convertir videos cortos: al eliminar operaciones como crear un proceso separado y asignar memoria para cada video, se logr\u00f3 reducir el tiempo de ejecuci\u00f3n de la tarea de prueba en tres veces utilizando bun:ffi.        <\/p>\n<p>Adem\u00e1s, en la versi\u00f3n 1.1.29 de Bun se ha a\u00f1adido soporte para N-API (napi) en el c\u00f3digo en C, lo que permite a los manejadores escritos en C devolver objetos, cadenas, arreglos y otros valores no primitivos de JavaScript, adem\u00e1s de los tipos nativos de C, como int y float. El mecanismo para llamar a manejadores en C tambi\u00e9n funciona al cargar din\u00e1micamente cualquier biblioteca con C ABI, independientemente de en qu\u00e9 idioma est\u00e9n originalmente escritas (C++, Rust, Zig, etc.), lo que permite llamar a funciones proporcionadas por esas bibliotecas desde c\u00f3digo JavaScript sin una etapa separada de recompilaci\u00f3n. Por ejemplo, ahora es posible acceder desde JavaScript a API del sistema.      <\/p>\n<p>Recordemos que el proyecto Bun se desarrolla teniendo en cuenta la compatibilidad con aplicaciones de servidor escritas para Node.js y soporta la mayor parte de la API de Node.js. La plataforma incluye un conjunto de herramientas para crear y ejecutar aplicaciones en JavaScript y TypeScript, as\u00ed como un entorno de ejecuci\u00f3n para ejecutar aplicaciones JavaScript sin navegador, un gestor de paquetes (compatible con NPM), herramientas para realizar pruebas y un sistema de construcci\u00f3n de paquetes independientes. En cuanto a rendimiento, Bun supera notablemente a Deno y Node.js (en pruebas basadas en el marco React, la plataforma Bun supera a Deno por 2 veces y casi 5 veces a Node.js). El c\u00f3digo de Bun est\u00e1 escrito en los lenguajes Zig y C++, y se distribuye bajo la licencia MIT. Para la ejecuci\u00f3n de JavaScript, se utiliza el motor JavaScriptCore y componentes del proyecto WebKit con parches adicionales.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61915\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 Bun, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b Node.js \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 JavaScript, JSX \u0438 TypeScript, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438. \u0420\u0430\u043d\u0435\u0435 \u0434\u043b\u044f \u0432\u044b\u0437\u043e\u0432\u0430 \u043d\u0438\u0437\u043a\u043e\u0443\u0440\u043e\u0432\u043d\u0435\u0432\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043b\u043e\u0441\u044c \u043b\u0438\u0431\u043e \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c N-API-\u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f, \u043b\u0438\u0431\u043e \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043a\u043e\u0434 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442 WebAssembly (WASM\/WASI), \u0447\u0442\u043e \u0443\u0441\u043b\u043e\u0436\u043d\u044f\u043b\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0438 \u043d\u0430\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u043b\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-119917","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 Bun, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b Node.js \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e\u0433\u043e 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