{"id":150228,"date":"2025-12-01T17:11:56","date_gmt":"2025-12-01T15:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/deniel-bernshtejn-obnovil-biblioteku-cdb"},"modified":"2025-12-01T17:11:56","modified_gmt":"2025-12-01T15:11:56","slug":"deniel-bernshtejn-obnovil-biblioteku-cdb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/deniel-bernshtejn-obnovil-biblioteku-cdb","title":{"rendered":"Daniel Bernstein a actualizat biblioteca cdb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Daniel Bernstein (Daniel J. Bernstein), expert recunoscut \u00een domeniul criptografiei \u0219i dezvolt\u0103rii de software sigur, creator al unor proiecte precum qmail, djbdns, NaCl, Ed25519, Curve25519 \u0219i ChaCha20-Poly1305, a publicat versiunea proiectului cdb 20250121, care ofer\u0103 un format de stocare a datelor \u0219i o bibliotec\u0103 asociat\u0103 pentru integrarea func\u021biilor de lucru cu Baze de Date sub form\u0103 de cheie\/valoare \u00een aplica\u021bii. Aceast\u0103 versiune a fost realizat\u0103 la mai bine de 25 de ani de la ultima actualizare cdb 0.75, care a fost publicat\u0103 \u00een februarie 2000.       <\/p>\n<p>Noua versiune implementeaz\u0103 formatul cdb64, tradus pe structuri cu tipuri de date pe 64 de bi\u021bi. Pe platformele pe 64 de bi\u021bi, noul format permite crearea de baze de date de p\u00e2n\u0103 la un exabyte (\u00een trecut, dimensiunea bazei de date nu putea dep\u0103\u0219i 4 GB). Baza de date este foarte compact\u0103 \u0219i folose\u0219te un antet de 4096 de bi\u021bi \u0219i c\u00e2te 48 de bi\u021bi de informa\u021bii auxiliare pentru fiecare \u00eenregistrare (pentru varianta pe 32 de bi\u021bi, antetul are 2048 de bi\u021bi \u0219i c\u00e2te 24 de bi\u021bi pentru fiecare \u00eenregistrare). La accesarea bazei de date, se efectueaz\u0103 doar dou\u0103 opera\u021biuni de acces pe disc, dac\u0103 exist\u0103 cheia, \u0219i una - dac\u0103 nu exist\u0103. Este sus\u021binut\u0103 \u00eenlocuirea atomic\u0103 a bazei de date, rezistent\u0103 la \u00eenchideri necontrolate \u0219i care nu blocheaz\u0103 accesul la citire.        <\/p>\n<p>Alte modific\u0103ri:  <\/p>\n<ul>\n<li class=\"l\"> Suport pentru compilare folosind scriptul configure \u0219i instalare prin comanda \u201emake install\u201d.\n<li class=\"l\">  Eliminarea leg\u0103turii testelor la csh.\n<li class=\"l\"> Toate valorile interne \u00eentregi au fost \u00eenlocuite cu tipul \u201enum\u201d, definit ca \u201elong long\u201d. Func\u021biile uint32, fmt \u0219i scan au fost \u00eenlocuite cu func\u021bii care lucreaz\u0103 cu tipul num.\n<li class=\"l\"> API-ul pentru gestionarea buferele a fost divizat \u00een inbuf \u0219i outbuf. S-a realizat o cur\u0103\u021bare a interfe\u021bei hier.\n<li class=\"l\"> S-au eliminat defini\u021biile func\u021biilor neutilizate din cod.\n<li class=\"l\"> Se renun\u021b\u0103 la utilizarea obi\u0219nuit\u0103 a func\u021biilor de \u00eembun\u0103t\u0103\u021bire, cum ar fi str_len, alloc, uint32, exit, error \u0219i systype.\n<li class=\"l\"> Codul a fost ref\u0103cut pentru a elimina utilizarea construc\u021biilor \u00eenvechite ale C-ului, cum ar fi vechiul stil de definire a func\u021biilor, prototipurile goale \u0219i vechiul stil de definire a main().\n<li class=\"l\"> Au fost activate defini\u021biile const \u0219i static.\n<li class=\"l\"> La compilare, a fost activat flamul \u201e-Wall\u201d, iar codul a fost cur\u0103\u021bat pentru a elimina avertismentele.\n<li class=\"l\"> \u00cen timpul compil\u0103rii au fost incluse op\u021biunile -fwrapv, -fno-delete-null-pointer-checks, -fno-strict-aliasing \u0219i -fno-strict-overflow.  <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64352\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u044d\u043d\u0438\u044d\u043b \u0411\u0435\u0440\u043d\u0448\u0442\u0435\u0439\u043d (Daniel J. Bernstein), \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u044d\u043a\u0441\u043f\u0435\u0440\u0442 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0438 \u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0433\u043e \u041f\u041e, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u0432\u0448\u0438\u0439 \u0442\u0430\u043a\u0438\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u044b, \u043a\u0430\u043a qmail, djbdns, NaCl, Ed25519, Curve25519 \u0438 ChaCha20-Poly1305, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 cdb 20250121, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u0444\u043e\u0440\u043c\u0430\u0442 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u0441\u043e\u043f\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443 \u0434\u043b\u044f \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u043d\u0438\u044f \u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0411\u0414 \u0432 \u0444\u043e\u0440\u043c\u0435 \u043a\u043b\u044e\u0447\/\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u0412\u044b\u043f\u0443\u0441\u043a \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0441\u043f\u0443\u0441\u0442\u044f \u0431\u043e\u043b\u0435\u0435 25 \u043b\u0435\u0442 [&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-150228","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u044d\u043d\u0438\u044d\u043b \u0411\u0435\u0440\u043d\u0448\u0442\u0435\u0439\u043d (Daniel J.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/ro\/blog\/news\/deniel-bernshtejn-obnovil-biblioteku-cdb\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"ro_RO\" \/>\n\t\t<meta 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