{"id":726,"date":"2015-11-26T08:24:39","date_gmt":"2015-11-26T08:24:39","guid":{"rendered":"http:\/\/haisins.epac.to\/wordpress\/?p=726"},"modified":"2015-11-26T08:24:39","modified_gmt":"2015-11-26T08:24:39","slug":"%ed%94%84%eb%a1%9c%ec%84%b8%ec%8a%a4-%ec%83%9d%eb%aa%85-%ec%a3%bc%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/haisins.synology.me\/wordpress\/?p=726","title":{"rendered":"\ud504\ub85c\uc138\uc2a4 \uc0dd\uba85 \uc8fc\uae30"},"content":{"rendered":"

\ud504\ub85c\uc138\uc2a4\uac00 \uc0dd\uc131\uc5d0\uc11c \uc885\ub8cc\ud558\uae30\uae4c\uc9c0\uc758 \uacfc\uc815<\/b><\/p>\n

\ub514\uc2a4\ud06c\uc5d0 \uc788\ub294 \ud504\ub85c\uadf8\ub7a8\uc774 \uc2e4\ud589\ub418\uc5b4 \ud65c\uc131\ud654 \ub41c \uac83\uc774 \ud504\ub85c\uc138\uc2a4\uc774\ub2e4. \ud504\ub85c\uc138\uc2a4\ub294 \uc885\ub8cc(terminated) \ub418\uae30\uc804\uae4c\uc9c0 \ud56d\uc0c1 \uba54\ubaa8\ub9ac\uc5d0 \uc0c1\uc8fc\ud558\uba70, \ub2e4\uc591\ud55c \uc0c1\ud0dc\ub97c \uac00\uc9c4\ub2e4. <\/p>\n

\ud504\ub85c\uc138\uc2a4\uac00 \ud65c\uc131\ud654 \ub418\uc5b4 \uc885\ub8cc\ub420 \ub54c\uae4c\uc9c0\ub97c \ud504\ub85c\uc138\uc2a4\uac00 \uc0b4\uc544 \uc788\ub294 \uc2dc\uac04\uc73c\ub85c \uac04\uc8fc\ud558\uba70, \uc774\ub97c \ud504\ub85c\uc138\uc2a4 \uc0dd\uba85\uc8fc\uae30(process lifetime)\ub77c \ud55c\ub2e4.<\/p>\n

\uc720\ub2c9\uc2a4\ub294 \ub2e4\uc911 \ucc98\ub9ac, \ub2e4\uc911 \uc0ac\uc6a9\uc790 \ud658\uacbd\uc744 \uc9c0\uc6d0\ud55c\ub2e4. \ubcf4\ud1b5 \ud504\ub85c\uc138\uc2a4\ub294 \ud558\ub098\uc758 \ud504\ub85c\uadf8\ub7a8\uc744 \uc218\ud589\ud558\uc9c0\ub9cc \uc5ec\ub7ec \uac1c\uc758 \ud504\ub85c\uc138\uc2a4\uac00 \ubcd1\ud589\uc73c\ub85c \uac19\uc740 \ud504\ub85c\uadf8\ub7a8\uc744<\/p>\n

\uc218\ud589\ud560 \uc218 \uc788\ub2e4. \uadf8\ub7f0 \ud504\ub85c\uc138\uc2a4\ub4e4\uc740 \uba54\ubaa8\ub9ac \ub0b4\uc5d0\uc11c \ud558\ub098\uc758 \ud504\ub85c\uadf8\ub7a8 \ud14d\uc2a4\ud2b8 \ubcf5\uc0ac \ubcf8\uc744 \uacf5\uc720\ud558\uc9c0\ub9cc, \ub370\uc774\ud130\uc640 \uc2a4\ud0dd \uc601\uc5ed\uc740 \uac01\uac01 \uac1c\ubcc4\uc801\uc73c\ub85c \uc720\uc9c0\ud55c\ub2e4.<\/p>\n

sched(process 0)\uc744 \uc81c\uc678\ud55c \uc2dc\uc2a4\ud15c\uc758 \ubaa8\ub4e0 \ud504\ub85c\uc138\uc2a4\ub4e4\uc740 fork()\ub77c\ub294 \uc2dc\uc2a4\ud15c \ud638\ucd9c\uc5d0 \uc758\ud574 \uc0dd\uc131\ub41c\ub2e4. fork()\ub294 \uc0c8\ub85c\uc6b4 \uac00\uc0c1 \uc8fc\uc18c \uacf5\uac04\uc5d0 <\/p>\n

\ubd80\ubaa8 \ud504\ub85c\uc138\uc2a4(Parent process)\uc758 \uc2dc\uc2a4\ud15c \ud638\ucd9c(System call)\uacfc \ucc98\ub9ac(processing)\ub97c \ubcf5\uc0ac(copy)\ud55c\ub2e4. \uc774\ud6c4 exec()\ub77c\ub294 \uc2dc\uc2a4\ud15c \ud638\ucd9c\uc5d0 \uc758\ud574 <\/p>\n

\uc790\uc2dd \ud504\ub85c\uc138\uc2a4(Child process)\uac00 \uc77c\ubc18\ud654\ub41c\ub2e4. \uc2e4\ud589 \uac00\ub2a5\ud55c \ud30c\uc77c\uc774 \uc0c8\ub85c\uc6b4 \ud504\ub85c\uc138\uc2a4 \uc8fc\uc18c \uacf5\uac04\uc5d0 \uc0dd\uc131\ub41c\ub2e4. \uc774\ub97c \uc790\uc2dd \ud504\ub85c\uc138\uc2a4\ub77c \ud55c\ub2e4.<\/p>\n

\uc790\uc2dd \ud504\ub85c\uc138\uc2a4\uac00 \uc218\ud589\ud558\ub294 \ub3d9\uc548\uc5d0 \ubd80\ubaa8 \ud504\ub85c\uc138\uc2a4\ub294 wait() \uc2dc\uc2a4\ud15c \ud638\ucd9c\uc5d0 \uc758\ud574 \uc790\uc2dd \ud504\ub85c\uc138\uc2a4\uac00 \uc885\ub8cc\ud558\ub294 \uac83\uc744 \uae30\ub2e4\ub9ac\uac70\ub098 \uc9c0\uc18d\uc801\uc778 \uc2e4\ud589\ud55c\ub2e4.<\/p>\n

\uc774\ub54c \ubd80\ubaa8 \ud504\ub85c\uc138\uc2a4\uc758 \uc0c1\ud0dc\ub97c \uc7a0\ub4ec(sleep)\uc774\ub77c \ud55c\ub2e4. \uc790\uc2dd \ud504\ub85c\uc138\uc2a4\uac00 \uc791\uc5c5\uc744 \uc644\ub8cc\ud558\uba74 exit() \uc2dc\uc2a4\ud15c \ud638\ucd9c\uc744 \ud1b5\ud574 \uc790\uc2dd \ud504\ub85c\uc138\uc2a4\uc758 \uc885\ub8cc \uc0c1\ud0dc\ub97c<\/p>\n

\ubd80\ubaa8 \ud504\ub85c\uc138\uc2a4\uc5d0\uac8c \uc804\ub2ec\ud558\uace0, \uc0ac\uc6a9\ud55c \uc2dc\uc2a4\ud15c \uc790\uc6d0\uc744 \ub418\ub3cc\ub824\uc900\ub2e4. \uc0c8\ub85c\uc6b4 \uc791\uc5c5\uc774 \ubc1c\uc0dd\ud560 \ub54c\ub9c8\ub2e4 fork(), exec()\ub97c \uc2e4\ud589\ud558\uc5ec \uc790\uc2dd \ud504\ub85c\uc138\uc2a4\ub97c \uc0dd\uc131\ud558\uc5ec \ucc98\ub9ac\ud55c\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\ud504\ub85c\uc138\uc2a4\uac00 \uc0dd\uc131\uc5d0\uc11c \uc885\ub8cc\ud558\uae30\uae4c\uc9c0\uc758 \uacfc\uc815 \ub514\uc2a4\ud06c\uc5d0 \uc788\ub294 \ud504\ub85c\uadf8\ub7a8\uc774 \uc2e4\ud589\ub418\uc5b4 \ud65c\uc131\ud654 \ub41c \uac83\uc774 \ud504\ub85c\uc138\uc2a4\uc774\ub2e4. \ud504\ub85c\uc138\uc2a4\ub294 \uc885\ub8cc(terminated) \ub418\uae30\uc804\uae4c\uc9c0 \ud56d\uc0c1 \uba54\ubaa8\ub9ac\uc5d0 \uc0c1\uc8fc\ud558\uba70, \ub2e4\uc591\ud55c \uc0c1\ud0dc\ub97c \uac00\uc9c4\ub2e4. \ud504\ub85c\uc138\uc2a4\uac00 \ud65c\uc131\ud654 \ub418\uc5b4 \uc885\ub8cc\ub420 \ub54c\uae4c\uc9c0\ub97c \ud504\ub85c\uc138\uc2a4\uac00 \uc0b4\uc544 \uc788\ub294 \uc2dc\uac04\uc73c\ub85c \uac04\uc8fc\ud558\uba70, \uc774\ub97c \ud504\ub85c\uc138\uc2a4 \uc0dd\uba85\uc8fc\uae30(process lifetime)\ub77c \ud55c\ub2e4. \uc720\ub2c9\uc2a4\ub294 \ub2e4\uc911 \ucc98\ub9ac, \ub2e4\uc911 \uc0ac\uc6a9\uc790 \ud658\uacbd\uc744 \uc9c0\uc6d0\ud55c\ub2e4. \ubcf4\ud1b5 \ud504\ub85c\uc138\uc2a4\ub294 \ud558\ub098\uc758 \ud504\ub85c\uadf8\ub7a8\uc744 \uc218\ud589\ud558\uc9c0\ub9cc \uc5ec\ub7ec \uac1c\uc758 \ud504\ub85c\uc138\uc2a4\uac00 \ubcd1\ud589\uc73c\ub85c \uac19\uc740 \ud504\ub85c\uadf8\ub7a8\uc744 \uc218\ud589\ud560 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"categories":[405],"tags":[420],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/726"}],"collection":[{"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=726"}],"version-history":[{"count":0,"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/726\/revisions"}],"wp:attachment":[{"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}