{"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\/sl\/blog\/news\/vypusk-vstraivaemoj-subd-libmdbx-0-13-2","title":{"rendered":"Izdaja vgrajenega DBMS libmdbx 0.13.2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Objavljena je izdaja knji\u017enice libmdbx 0.13.2 (MDBX) z implementacijo visoko zmogljive kompaktne vgrajene podatkovne baze razreda klju\u010d-vrednost. Koda libmdbx se distribuira pod licenco Apache 2.0. Podprti so vsi aktualni operacijski sistemi in arhitekture, vklju\u010dno z ruskim Elbrus 2000. Za libmdbx je na voljo razvito API za C++, skupaj s podporo navdu\u0161encev za jezike Rust, Haskell, Python, NodeJS, Ruby, Go, Nim, Deno in Scala.      <\/p>\n<p>Istorijski, libmdbx predstavlja duboku preradu DBMS LMDB i nadma\u0161uje svog prethodnika u pouzdanosti, opsegu mogu\u0107nosti i performansama. U pore\u0111enju sa LMDB, libmdbx posve\u0107uje veliku pa\u017enju kvalitetu koda, stabilnom radu API-ja, testiranju i automatskim proverama. Isporu\u010duje se alat za proveru integriteta strukture baze podataka sa nekim mogu\u0107nostima obnavljanja. Tehnolo\u0161ki, libmdbx nudi ACID, strogu serijalizaciju promena i neblokiraju\u0107e \u010ditanje s linearnim skaliranjem po CPU jezgrama. Podr\u017eava automatsku kompaktifikaciju, automatsko upravljanje veli\u010dinom baze podataka, procenu obima uzoraka po opsegu (range query estimation).        <\/p>\n<p>Glavne spremembe:  <\/p>\n<ul>\n<li class=\"l\"> Pospe\u0161eno posodabljanje GC pri vra\u010danju\/premikanju seznamov strani v zapletenih scenarijih. Izbolj\u0161an in aktiviran prej onemogo\u010den eksperimentalni na\u010din korektivne povratne informacije. S tem je bila bistveno izbolj\u0161ana konvergence (zmanj\u0161ano \u0161tevilo ponovnih poskusov) ter odpravljena napaka, ki je povzro\u010dala &#171;zanko&#187; pri zaklepanju transakcij (s povratno napako MDBX_PROBLEM) v redkih specifi\u010dnih pogojih.\n<li class=\"l\"> V gradbenih skriptah CMake je vklju\u010den standard C23.\n<li class=\"l\"> Dodani so T-makroi za parne funkcije char\/wchar_t.\n<li class=\"l\"> Podpora za gnezdene pisane transakcije je dodana v C++ API.\n<li class=\"l\"> Izveden prehod na drugo razli\u010dico specifikacije semanti\u010dnega razli\u010diciranja (&#171;Semantic Versioning 2&#187;) in omogo\u010den izvoz informacij o verziji v VERSION.json.\n<li class=\"l\"> Za ponovljivost gradnje je dodana podpora za okoljsko spremenljivko SOURCE_DATE_EPOCH. Podpora MDBX_BUILD_TIMESTAMP je ohranjena in ta spremenljivka ima prednost.\n<li class=\"l\"> Dodana je mo\u017enost natan\u010dne natan\u010dne informacije o gradnji libmdbx preko mo\u017enosti MDBX_BUILD_METADATA. Zdaj dodane informacije preprosto vklju\u010dujemo znotraj knji\u017enice kot vrednost mdbx_build.metadata in se bodo kasneje uporabile pri oblikovanju paketov itd.\n<li class=\"l\"> Dodano je bele\u017eenje napak, ki jih vra\u010da API. Zdaj je dovolj, da nastavite raven bele\u017eenja MDBX_LOG_DEBUG (za bele\u017eenje napak, razen MDBX_NOTFOUND) ali MDBX_LOG_TRACE (za bele\u017eenje vseh napak, vklju\u010dno z MDBX_RESULT_TRUE).\n<li class=\"l\"> Sprememba obna\u0161anja:\n<ul>\n<li class=\"l\"> Dodana je metoda mdbx::cursor::get_multiple_samelength() in preimenovana mdbx::txn::put_multiple_samelength().\n<li class=\"l\"> Za doslednost C++ API pri izvajanju operacije MDBX_GET_MULTIPLE zdaj vrne tudi vrednost samega klju\u010da.\n<li class=\"l\">  Za velikostne konstante mdbx::env::geometry je bil osnovni tip spremenjen iz brezznakovega size_t v znakovnega intptr_t.\n<li class=\"l\"> Izbira med uporabo ntdll namesto CRT se zdaj izvede le ob izrecni onemogo\u010ditvi C++ API.\n<li class=\"l\">  Zagotovljeno je spro\u0161\u010danje pomnilnika za prekinjene\/branje transakcije, ki se prena\u0161ajo v mdbx_txn_commit(). Dogovor o API-ju zahteva, da se take transakcije sprostijo preko mdbx_txn_abort(), kar je povzro\u010dilo, da je funkcija mdbx_txn_commit() v takih primerih vrnila napako, ne da bi uni\u010dila same transakcije. To je privedlo do uhajanja pomnilnika zaradi napak v aplikacijah, kar je spodbudilo spremembo vedenja.\n<li class=\"l\"> Uporaba makra __deprecated_enum, \u010de je definiran.\n<li class=\"l\"> Pri gradnji s CMake se izbira standarda jezika C zdaj izvede ob upo\u0161tevanju CMAKE_C_STANDARD.  <\/ul>\n<\/ul>\n<p>Izvor: <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 5.0.4 - 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