{"id":31229,"date":"2019-10-31T21:40:10","date_gmt":"2019-10-31T18:40:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/operating-systems-three-easy-pieces-part-3-process-api-perevod\/"},"modified":"2019-10-31T21:40:10","modified_gmt":"2019-10-31T18:40:10","slug":"operating-systems-three-easy-pieces-part-3-process-api-perevod","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/operating-systems-three-easy-pieces-part-3-process-api-perevod","title":{"rendered":"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h1>\u00davod do opera\u010dn\u00fdch syst\u00e9mov<\/h1>\n<p>\nAhoj, Habr! Chcem v\u00e1m predstavi\u0165 s\u00e9riu \u010dl\u00e1nkov-prekladu zauj\u00edmavej literat\u00fary, ktor\u00fa pova\u017eujem za zauj\u00edmav\u00fa \u2014 OSTEP. V tomto materi\u00e1li sa podrobne zaober\u00e1 fungovan\u00edm unixov\u00fdch opera\u010dn\u00fdch syst\u00e9mov, konkr\u00e9tne pr\u00e1cou s procesmi, r\u00f4znymi pl\u00e1nova\u010dmi, pam\u00e4\u0165ou a in\u00fdmi podobn\u00fdmi komponentmi, ktor\u00e9 tvoria modern\u00fd OS. Origin\u00e1l v\u0161etk\u00fdch materi\u00e1lov si m\u00f4\u017eete pozrie\u0165 tu: <noindex><a rel=\"nofollow\" href=\"http:\/\/pages.cs.wisc.edu\/~remzi\/OSTEP\/\">tu<\/a><\/noindex>. Pros\u00edm berte na vedomie, \u017ee preklad bol vykonan\u00fd neprofesion\u00e1lne (dos\u0165 vo\u013ene), ale d\u00fafam, \u017ee som zachoval celkov\u00fd zmysel.<\/p>\n<p>Laborat\u00f3rne pr\u00e1ce na tomto predmete n\u00e1jdete tu:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"http:\/\/pages.cs.wisc.edu\/~remzi\/OSTEP\/Homework\/homework.html\">origin\u00e1l<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/remzi-arpacidusseau\/ostep-code\">origin\u00e1l<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/bykvaadm\/OS\/tree\/master\/ostep\">moj osobn\u00fd prisp\u00f4soben\u00fd preklad<\/a><\/noindex><\/li>\n<\/ul>\n<p>\n\u010eal\u0161ie \u010dasti:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/post\/446340\/\">\u010cas\u0165 1: \u00davod<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/post\/446866\/\">\u010cas\u0165 2: Abstrakcia: proces<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/en\/post\/447182\/\">\u010cas\u0165 3: \u00davod do API procesov<\/a><\/noindex><\/li>\n<\/ul>\n<p>\nA m\u00f4\u017eete sa pozera\u0165 aj na m\u00f4j kan\u00e1l v <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/bykvaadm\">telegrame<\/a><\/noindex> =)<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<b>Poplach!<\/b> k tej predn\u00e1\u0161ke je labka! pozri <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/bykvaadm\/OS\/tree\/master\/ostep\">github<\/a><\/noindex><\/p>\n<h2>API procesu<\/h2>\n<p>Pozrime sa na pr\u00edklad vytvorenia procesu v UNIX syst\u00e9me. Tento proces vznik\u00e1 prostredn\u00edctvom dvoch syst\u00e9mov\u00fdch volan\u00ed. <b>fork()<\/b> a <b>exec()<\/b>.<\/p>\n<h3>Volanie fork()<\/h3>\n<p>\n<img decoding=\"async\" alt=\"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)\" src=\"\/wp-content\/uploads\/2019\/04\/c0c39726560e18a82ae05a31b43f92c0.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nPozrime sa na program, ktor\u00fd vykon\u00e1va volanie fork(). V\u00fdsledok jeho vykonania bude nasleduj\u00faci.<\/p>\n<p><img decoding=\"async\" alt=\"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)\" src=\"\/wp-content\/uploads\/2019\/04\/3ddddbaf5bbb38e9882827da0513805a.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNajprv vst\u00fapime do funkcie main() a vykon\u00e1me v\u00fdstup re\u0165azca na obrazovku. Tento re\u0165azec obsahuje identifik\u00e1tor procesu, ktor\u00fd sa p\u00f4vodne naz\u00fdva <b>PID<\/b> alebo identifik\u00e1tor procesu. Tento identifik\u00e1tor sa v UNIX-e pou\u017e\u00edva na to, aby sme mohli odkazova\u0165 na proces. Nasleduj\u00faci pr\u00edkaz spust\u00ed volanie fork(). V tomto momente sa vytv\u00e1ra prakticky presn\u00e1 k\u00f3pia procesu. Pre opera\u010dn\u00fd syst\u00e9m to vyzer\u00e1 tak, akoby sa v syst\u00e9me spustili ako keby 2 k\u00f3pie tej istej programy, ktor\u00e9 sa n\u00e1sledne odhl\u00e1sia z vykon\u00e1vania funkcie fork(). Novovytvoren\u00fd proces-potomok (v porovnan\u00ed so svoj\u00edm procesom-rodi\u010dom) u\u017e nebude vykon\u00e1va\u0165 so za\u010diatkom funkcie main(). Je potrebn\u00e9 pam\u00e4ta\u0165 na to, \u017ee proces-potomok nie je presnou k\u00f3piou procesu-rodi\u010da, konkr\u00e9tne m\u00e1 vlastn\u00fd adresn\u00fd priestor, vlastn\u00e9 registre, svoj ukazovate\u013e na vykon\u00e1van\u00e9 in\u0161trukcie a podobne. T\u00fdm p\u00e1dom sa hodnota, ktor\u00e1 sa vracia volate\u013eovi funkcie fork(), bude l\u00ed\u0161i\u0165. Konkr\u00e9tne, proces-rodi\u010d z\u00edska ako n\u00e1vratov\u00fa hodnotu PID procesu die\u0165a\u0165a, zatia\u013e \u010do die\u0165a z\u00edska hodnotu rovnu 0. Na z\u00e1klade t\u00fdchto n\u00e1vratov\u00fdch k\u00f3dov je mo\u017en\u00e9 n\u00e1sledne odde\u013eova\u0165 procesy a n\u00fati\u0165 ka\u017ed\u00fd z nich vykon\u00e1va\u0165 svoju pr\u00e1cu. Pri tom v\u0161ak vykon\u00e1vanie tejto programy nie je striktne definovan\u00e9. Po rozdelen\u00ed na 2 procesy opera\u010dn\u00fd syst\u00e9m za\u010d\u00edna sledova\u0165 ich, ako aj pl\u00e1nova\u0165 ich pr\u00e1cu. V pr\u00edpade vykon\u00e1vania na jednojadrovom procesore bude pokra\u010dova\u0165 pr\u00e1ca jedn\u00e9ho z procesov, v tomto pr\u00edpade \u2014 rodi\u010dovsk\u00e9ho, a potom prevzme riadenie proces-potomok. Pri op\u00e4tovnom spusten\u00ed situ\u00e1cia m\u00f4\u017ee by\u0165 in\u00e1.<\/p>\n<h3>Volanie wait()<\/h3>\n<p>\n<img decoding=\"async\" alt=\"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)\" src=\"\/wp-content\/uploads\/2019\/04\/abb10671424f1889fbbb3facae739029.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nPozrime sa na nasleduj\u00faci program. V tomto programe, v\u010faka pr\u00edtomnosti volania <b>wait()<\/b> proces-rodi\u010d v\u017edy po\u010dk\u00e1 na ukon\u010denie \u010dinnosti procesu-potomka. V tomto pr\u00edpade dostaneme striktne definovan\u00fd v\u00fdstup textu na obrazovke.<\/p>\n<p><img decoding=\"async\" alt=\"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)\" src=\"\/wp-content\/uploads\/2019\/04\/7e8ea54531b7717b7b42802550afd27b.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h3>Volanie exec()<\/h3>\n<p>\n<img decoding=\"async\" alt=\"Operating Systems: Three Easy Pieces. Part 3: Process API (preklad)\" src=\"\/wp-content\/uploads\/2019\/04\/dfe3a41c03bc35fd716a1b4c3af68c2f.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nPozrime sa na volanie <b>exec()<\/b>. Toto syst\u00e9mov\u00e9 volanie je u\u017eito\u010dn\u00e9, ke\u010f chceme spusti\u0165 \u00faplne in\u00fa program. Tu budeme vykon\u00e1va\u0165 volanie <b>execvp()<\/b> na spustenie programu wc, ktor\u00fd je program na po\u010d\u00edtanie slov. \u010co sa teda deje pri volan\u00ed exec()? Tento pr\u00edkaz prij\u00edma ako argumenty n\u00e1zov vykon\u00e1vate\u013en\u00e9ho s\u00faboru a niektor\u00e9 parametre. Po tom sa na\u010d\u00edta k\u00f3d a statick\u00e9 \u00fadaje z tohto vykon\u00e1vate\u013en\u00e9ho s\u00faboru a prepisuje sa vlastn\u00fd segment s k\u00f3dom. Ostatn\u00e9 \u010dasti pam\u00e4te, ako je z\u00e1sobn\u00edk a halda, sa preinicializuj\u00fa. Potom opera\u010dn\u00fd syst\u00e9m jednoducho vykon\u00e1 program a prenesie mu s\u00fabor argumentov. Takto sme nevytvorili nov\u00fd proces, len sme transformovali aktu\u00e1lne spusten\u00fd program na in\u00fd spusten\u00fd program. Po vykonan\u00ed volania exec() v potomkovi nast\u00e1va dojem, \u017ee p\u00f4vodn\u00fd program akoby sa v\u00f4bec nespustil.<\/p>\n<p>Toto komplikovanie spustenia je \u00faplne norm\u00e1lne pre shell prostredie Unix, a umo\u017e\u0148uje tomuto shellu vykon\u00e1va\u0165 k\u00f3d po volan\u00ed <b>fork()<\/b>, ale pred volan\u00edm <b>exec()<\/b>. Pr\u00edkladom tak\u00e9hoto k\u00f3du m\u00f4\u017ee by\u0165 prisp\u00f4sobenie prostredia shellu potreb\u00e1m spusten\u00e9ho programu pred jeho bezprostredn\u00fdm spusten\u00edm.<\/p>\n<p><b>Shell<\/b> \u2014 to je len pou\u017e\u00edvate\u013esk\u00fd program. Zobrazuje v\u00e1m riadok pr\u00edkazu a \u010dak\u00e1, k\u00fdm do neho nie\u010do nap\u00ed\u0161ete. V v\u00e4\u010d\u0161ine pr\u00edpadov, ak do neho nap\u00ed\u0161ete n\u00e1zov programu, shell n\u00e1jde jeho umiestnenie, zavol\u00e1 met\u00f3du fork(), a potom na vytvorenie nov\u00e9ho procesu zavol\u00e1 niektor\u00fd z typov exec() a \u010dak\u00e1 na jeho vykonanie pomocou volania wait(). Ke\u010f sa proces-potomok dokon\u010d\u00ed, shell sa vr\u00e1ti z volania wait() a op\u00e4\u0165 zobraz\u00ed riadok pr\u00edkazu a bude \u010daka\u0165 na zadanie nasleduj\u00faceho pr\u00edkazu.<\/p>\n<p>Rozdelenie fork() &amp; exec() umo\u017e\u0148uje shellu robi\u0165 nasleduj\u00face veci, napr\u00edklad:<br \/>\n<b>wc file &gt; new_file.<\/b><\/p>\n<p>V tomto pr\u00edklade je v\u00fdstup programu wc presmerovan\u00fd do s\u00faboru. Sp\u00f4sob, ak\u00fdm to shell dosahuje, je dos\u0165 jednoduch\u00fd \u2014 pri vytv\u00e1ran\u00ed procesu-die\u0165a\u0165a pred volan\u00edm <b>exec()<\/b>, shell uzavrie \u0161tandardn\u00fd v\u00fdstupn\u00fd pr\u00fad a otvor\u00ed s\u00fabor <b>new_file<\/b>, t\u00fdmto sp\u00f4sobom bude cel\u00fd v\u00fdstup z n\u00e1sledne spusten\u00e9ho programu <b>wc<\/b> presmerovan\u00fd do s\u00faboru namiesto na obrazovku.<\/p>\n<p><b>Unix pipe<\/b> s\u00fa implementovan\u00e9 podobn\u00fdm sp\u00f4sobom, s v\u00fdnimkou, \u017ee pou\u017e\u00edvaj\u00fa volanie pipe(). V tomto pr\u00edpade bude v\u00fdstupn\u00fd pr\u00fad procesu pripojen\u00fd k frontu pipe, ktor\u00fd je umiestnen\u00fd v jadre, ku ktor\u00e9mu bude tie\u017e pripojen\u00fd vstupn\u00fd pr\u00fad in\u00e9ho procesu.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/447182\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0432 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u041f\u0440\u0438\u0432\u0435\u0442, \u0425\u0430\u0431\u0440! \u0425\u043e\u0447\u0443 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044e \u0441\u0435\u0440\u0438\u044e \u0441\u0442\u0430\u0442\u0435\u0439-\u043f\u0435\u0440\u0435\u0432\u043e\u0434\u043e\u0432 \u043e\u0434\u043d\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0439 \u043d\u0430 \u043c\u043e\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043b\u0438\u0442\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u2014 OSTEP. \u0412 \u044d\u0442\u043e\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0433\u043b\u0443\u0431\u043e\u043a\u043e \u0440\u0430\u0431\u043e\u0442\u0430 unix-\u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u0430 \u0438\u043c\u0435\u043d\u043d\u043e \u2014 \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u043c\u0438, \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430\u043c\u0438, \u043f\u0430\u043c\u044f\u0442\u044c\u044e \u0438 \u043f\u0440\u043e\u0447\u0438\u0438\u043c\u0438 \u043f\u043e\u0434\u043e\u0431\u043d\u044b\u043c\u0438 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u043c\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e \u041e\u0421. \u041e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0432\u0441\u0435\u0445 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u043e\u0432 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0432\u043e\u0442 \u0442\u0443\u0442. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":23195,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-31229","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0432 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u041f\u0440\u0438\u0432\u0435\u0442, \u0425\u0430\u0431\u0440! \u0425\u043e\u0447\u0443 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044e \u0441\u0435\u0440\u0438\u044e \u0441\u0442\u0430\u0442\u0435\u0439-\u043f\u0435\u0440\u0435\u0432\u043e\u0434\u043e\u0432 \u043e\u0434\u043d\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0439 \u043d\u0430 \u043c\u043e\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043b\u0438\u0442\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u2014 OSTEP.\" \/>\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\/sk\/blog\/administrirovanie\/operating-systems-three-easy-pieces-part-3-process-api-perevod\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47Operating Systems: Three Easy Pieces. Part 3: Process API (\u043f\u0435\u0440\u0435\u0432\u043e\u0434) | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0432 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u041f\u0440\u0438\u0432\u0435\u0442, \u0425\u0430\u0431\u0440! \u0425\u043e\u0447\u0443 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044e \u0441\u0435\u0440\u0438\u044e \u0441\u0442\u0430\u0442\u0435\u0439-\u043f\u0435\u0440\u0435\u0432\u043e\u0434\u043e\u0432 \u043e\u0434\u043d\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0439 \u043d\u0430 \u043c\u043e\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043b\u0438\u0442\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u2014 OSTEP.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/operating-systems-three-easy-pieces-part-3-process-api-perevod\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T18:40:10+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T18:40:10+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Opera\u010dn\u00e9 syst\u00e9my: Tri jednoduch\u00e9 \u010dasti. \u010cas\u0165 3: API procesov (preklad) | ProHoster","description":"\u00davod do opera\u010dn\u00fdch syst\u00e9mov Ahoj, Habr! Chcem v\u00e1m predstavi\u0165 s\u00e9riu \u010dl\u00e1nkov-prekladov jednej zauj\u00edmavej literat\u00fary \u2014 OSTEP.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/operating-systems-three-easy-pieces-part-3-process-api-perevod","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Operating Systems: Three Easy Pieces. Part 3: Process API (\u043f\u0435\u0440\u0435\u0432\u043e\u0434) | ProHoster","og:description":"\u0412\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0432 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u041f\u0440\u0438\u0432\u0435\u0442, \u0425\u0430\u0431\u0440! \u0425\u043e\u0447\u0443 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044e \u0441\u0435\u0440\u0438\u044e \u0441\u0442\u0430\u0442\u0435\u0439-\u043f\u0435\u0440\u0435\u0432\u043e\u0434\u043e\u0432 \u043e\u0434\u043d\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u0439 \u043d\u0430 \u043c\u043e\u0439 \u0432\u0437\u0433\u043b\u044f\u0434 \u043b\u0438\u0442\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u2014 OSTEP.","og:url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/operating-systems-three-easy-pieces-part-3-process-api-perevod","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T18:40:10+00:00","article:modified_time":"2019-10-31T18:40:10+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"31229","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-21 05:09:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 03:20:31","updated":"2026-01-21 05:09:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/31229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=31229"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/31229\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media\/23195"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=31229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=31229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=31229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}