{"id":120982,"date":"2024-12-14T09:46:06","date_gmt":"2024-12-14T09:46:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-vstraivaemoj-subd-libmdbx-0-13-2"},"modified":"2026-05-20T17:49:32","modified_gmt":"2026-05-20T17:49:32","slug":"vypusk-vstraivaemoj-subd-libmdbx-0-13-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-2","title":{"rendered":"Lanzamiento de la base de datos embebida libmdbx 0.13.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se ha publicado la versi\u00f3n de la biblioteca libmdbx 0.13.2 (MDBX) con la implementaci\u00f3n de una base de datos incrustada de alto rendimiento y compacta de tipo clave-valor. El c\u00f3digo de libmdbx se distribuye bajo la licencia Apache 2.0. Se admiten todos los sistemas operativos y arquitecturas actuales, as\u00ed como el ruso Elbrus 2000. Para libmdbx se ofrece una API avanzada para C++, adem\u00e1s de enlaces soportados por entusiastas a los lenguajes Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno, y Scala.      <\/p>\n<p>Hist\u00f3ricamente, libmdbx es una profunda reestructuraci\u00f3n de la base de datos LMDB y supera a su predecesor en fiabilidad, conjunto de funciones y rendimiento. En comparaci\u00f3n con LMDB, libmdbx presta especial atenci\u00f3n a la calidad del c\u00f3digo, al funcionamiento estable de la API, a las pruebas y a las verificaciones autom\u00e1ticas. Se incluye una utilidad de verificaci\u00f3n de la integridad de la estructura de la base de datos con algunas capacidades de recuperaci\u00f3n. Tecnol\u00f3gicamente, libmdbx ofrece ACID, estricta serializaci\u00f3n de cambios y lectura no bloqueante con escalabilidad lineal en n\u00facleos de CPU. Soporta la autocompactaci\u00f3n, la gesti\u00f3n autom\u00e1tica del tama\u00f1o de la base de datos y la estimaci\u00f3n del volumen de las muestras por rangos (estimaci\u00f3n de consultas de rango).        <\/p>\n<p>Principales cambios:  <\/p>\n<ul>\n<li class=\"l\"> Se ha acelerado la actualizaci\u00f3n de GC al devolver\/colocar listas de p\u00e1ginas en escenarios complejos. Se ha mejorado y activado un modo experimental de retroalimentaci\u00f3n correctiva que antes estaba desactivado. Esto ha mejorado fundamentalmente la convergencia (se ha reducido el n\u00famero de reintentos) y tambi\u00e9n se ha eliminado un defecto que conduc\u00eda a un 'bucle' al fijar transacciones (devolviendo el error MDBX_PROBLEM) en condiciones raras y espec\u00edficas.\n<li class=\"l\"> Se ha incluido el est\u00e1ndar C23 en los scripts de construcci\u00f3n CMake.\n<li class=\"l\"> Se han a\u00f1adido macros T para funciones pareadas char\/wchar_t.\n<li class=\"l\"> Se ha a\u00f1adido el soporte para transacciones de escritura anidadas en la API de C++.\n<li class=\"l\"> Se ha hecho la transici\u00f3n a la segunda edici\u00f3n de la especificaci\u00f3n de versionado sem\u00e1ntico ('Semantic Versioning 2') y se ha asegurado la exportaci\u00f3n de informaci\u00f3n de versi\u00f3n en VERSION.json.\n<li class=\"l\"> Para la reproducibilidad de las construcciones se ha a\u00f1adido el soporte para la variable de entorno SOURCE_DATE_EPOCH. Se ha mantenido el soporte para MDBX_BUILD_TIMESTAMP y esta variable tiene prioridad.\n<li class=\"l\"> Se ha a\u00f1adido la posibilidad de especificar informaci\u00f3n adicional sobre la construcci\u00f3n de libmdbx a trav\u00e9s de la opci\u00f3n MDBX_BUILD_METADATA. Actualmente, la informaci\u00f3n proporcionada se incluye dentro de la biblioteca como valor de mdbx_build.metadata, y m\u00e1s adelante tambi\u00e9n se usar\u00e1 al formar paquetes, etc.\n<li class=\"l\"> Se ha a\u00f1adido registro de errores devueltos de la API. Ahora, para ello, es suficiente establecer el nivel de registro MDBX_LOG_DEBUG (para registrar errores excepto MDBX_NOTFOUND) o MDBX_LOG_TRACE (para registrar todos los errores, as\u00ed como MDBX_RESULT_TRUE).\n<li class=\"l\"> Cambio de comportamiento:\n<ul>\n<li class=\"l\"> Se ha a\u00f1adido el m\u00e9todo mdbx::cursor::get_multiple_samelength() y se ha renombrado mdbx::txn::put_multiple_samelength().\n<li class=\"l\"> Para uniformidad de la API de C++, al realizar la operaci\u00f3n MDBX_GET_MULTIPLE, tambi\u00e9n se devuelve el valor de la clave misma.\n<li class=\"l\">  Para las constantes de tama\u00f1o, el tipo base de mdbx::env::geometry se ha cambiado de size_t sin signo a intptr_t con signo.\n<li class=\"l\"> La elecci\u00f3n de usar ntdll en lugar de CRT ahora se realiza solo al deshabilitar expl\u00edcitamente la API de C++.\n<li class=\"l\">  Se asegur\u00f3 la liberaci\u00f3n de memoria de las transacciones de lectura que fueron canceladas\/interrumpidas, que se pasan a mdbx_txn_commit(). El acuerdo de API requiere que tales transacciones se liberen mediante mdbx_txn_abort(), lo que causaba que la funci\u00f3n mdbx_txn_commit() devolviera un error en tales casos sin destruir las transacciones mismas. Esto conduc\u00eda a fugas de memoria debido a errores en aplicaciones, lo que llev\u00f3 a cambiar el comportamiento.\n<li class=\"l\"> Uso del macro __deprecated_enum, si est\u00e1 definido.\n<li class=\"l\"> Al compilar con CMake, ahora se selecciona el est\u00e1ndar del lenguaje C teniendo en cuenta CMAKE_C_STANDARD.  <\/ul>\n<\/ul>\n<p>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62403\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libmdbx 0.13.2 (MDBX) \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0439 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u043a\u043b\u0430\u0441\u0441\u0430 \u043a\u043b\u044e\u0447-\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u041a\u043e\u0434 libmdbx \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0432\u0441\u0435 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0439 \u042d\u043b\u044c\u0431\u0440\u0443\u0441 2000. \u0414\u043b\u044f libmdbx \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u043e\u0435 API \u0434\u043b\u044f C++, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0435 \u044d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u0430\u043c\u0438 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0438 \u043a \u044f\u0437\u044b\u043a\u0430\u043c Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, [&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-120982","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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