{"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\/da\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-2","title":{"rendered":"Udgivelsen af den indlejrede DBMS libmdbx 0.13.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udgivet er version 0.13.2 af libmdbx-biblioteket (MDBX) med implementeringen af en h\u00f8jtydende, kompakt, indbygget n\u00f8gle-v\u00e6rdi-database. Koden for libmdbx distribueres under Apache 2.0-licensen. Alle relevante operativsystemer og arkitekturer underst\u00f8ttes, herunder den russiske Elbrus 2000. Der tilbydes et udviklet API for C++, samt underst\u00f8ttede bindinger til sprog som Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno og Scala.      <\/p>\n<p>Historisk set er libmdbx en dybgenarbejdning af DBMS LMDB og overg\u00e5r sin forg\u00e6nger i p\u00e5lidelighed, funktionss\u00e6t og ydeevne. Sammenlignet med LMDB l\u00e6gges der i libmdbx stor v\u00e6gt p\u00e5 kodekvalitet, stabil drift af API, testning og automatiserede kontroller. Der leveres et v\u00e6rkt\u00f8j til kontrol af databasens integritet med nogle genopretningsmuligheder. Teknologisk tilbyder libmdbx ACID, streng serialisering af \u00e6ndringer og ikke-blokerende l\u00e6sning med line\u00e6r skalering p\u00e5 CPU-kerner. Auto-komprimering, automatisk management af databasedimensioner og estimering af udvalg over omr\u00e5der (range query estimation) underst\u00f8ttes.        <\/p>\n<p>Vigtige \u00e6ndringer:  <\/p>\n<ul>\n<li class=\"l\"> Accelerated GC updates when returning\/placing page lists in complex scenarios. The previously disabled experimental feedback correction mode has been improved and activated. This fundamentally enhanced the convergence (reduced the number of retries) and eliminated a defect that could lead to 'looping' during transaction fixation (returning the error MDBX_PROBLEM) under rare specific conditions.\n<li class=\"l\"> CMake-samlescripts inkluderer nu standarden C23.\n<li class=\"l\"> T-makroer til parrede funktioner char\/wchar_t er blevet tilf\u00f8jet.\n<li class=\"l\"> C++ API'en har f\u00e5et support til indlejrede skrive-transaktioner.\n<li class=\"l\"> Transitioned to the second edition of the semantic versioning specification ('Semantic Versioning 2') and ensured the export of version information to VERSION.json.\n<li class=\"l\"> For at sikre reproducerbarhed af builds er der tilf\u00f8jet support til milj\u00f8variablen SOURCE_DATE_EPOCH. St\u00f8tten til MDBX_BUILD_TIMESTAMP er bevaret, og denne variable har prioritet.\n<li class=\"l\"> Muligheden for at angive yderligere information om libmdbx-build er blevet tilf\u00f8jet gennem mulighed for MDBX_BUILD_METADATA. Den nuv\u00e6rende information inkluderes simpelthen i biblioteket som v\u00e6rdien mdbx_build.metadata, og vil senere blive brugt ved pakkeopbygning og lignende.\n<li class=\"l\"> Fejllogning, der returneres fra API'en, er blevet tilf\u00f8jet. Nu er det tilstr\u00e6kkeligt at angive loggeniveauet MDBX_LOG_DEBUG (for at logge fejl bortset fra MDBX_NOTFOUND) eller MDBX_LOG_TRACE (for at logge alle fejl samt MDBX_RESULT_TRUE).\n<li class=\"l\"> \u00c6ndring af adf\u00e6rd:\n<ul>\n<li class=\"l\"> Metoden mdbx::cursor::get_multiple_samelength() er blevet tilf\u00f8jet, og mdbx::txn::put_multiple_samelength() er blevet omd\u00f8bt.\n<li class=\"l\"> For ensartethed i C++ API'en returneres der nu ogs\u00e5 v\u00e6rdien af selve n\u00f8glen, n\u00e5r operationen MDBX_GET_MULTIPLE udf\u00f8res.\n<li class=\"l\">  For st\u00f8rrelseskonstanter mdbx::env::geometry er basisdatatypen \u00e6ndret fra unsigned size_t til signed intptr_t.\n<li class=\"l\"> Valget af at bruge ntdll i stedet for CRT tr\u00e6ffes nu kun, n\u00e5r C++ API'en udtrykkeligt deaktiveres.\n<li class=\"l\">  Hukommelsesfrigivelse for annullerede \/ afbrudte l\u00e6setransaktioner, der sendes til mdbx_txn_commit(), er sikret. API-aftalen kr\u00e6ver, at s\u00e5danne transaktioner frigives via mdbx_txn_abort(), hvilket medf\u00f8rte, at funktionen mdbx_txn_commit() gav en fejl i disse tilf\u00e6lde uden at \u00f8del\u00e6gge selve transaktionerne. Dette f\u00f8rte til hukommelsesl\u00e6kager p\u00e5 grund af fejl i programmerne, hvilket fik os til at \u00e6ndre adf\u00e6rden.\n<li class=\"l\"> Brug af makroen __deprecated_enum, hvis den er defineret.\n<li class=\"l\"> Ved bygning via CMake v\u00e6lges standardsproget C nu i overensstemmelse med CMAKE_C_STANDARD.  <\/ul>\n<\/ul>\n<p>Kilde: <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 5.0.3 - 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