{"id":1215,"date":"2012-02-06T16:41:43","date_gmt":"2012-02-06T07:41:43","guid":{"rendered":"http:\/\/peta.okechan.net\/blog\/?p=1215"},"modified":"2013-02-01T13:23:08","modified_gmt":"2013-02-01T04:23:08","slug":"xv6%e3%82%bd%e3%83%bc%e3%82%b9%e3%82%b3%e3%83%bc%e3%83%89%e3%83%aa%e3%83%bc%e3%83%87%e3%82%a3%e3%83%b3%e3%82%b0-%e3%81%9d%e3%81%ae1","status":"publish","type":"post","link":"https:\/\/peta.okechan.net\/blog\/archives\/1215","title":{"rendered":"[xv6 #1] Chapter 0 – Operating system interfaces"},"content":{"rendered":"

\u30c6\u30ad\u30b9\u30c8\u306e7,8\u30da\u30fc\u30b8<\/p>\n

\u6982\u8981<\/h3>\n

xv6\u306f\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3068\u30ab\u30fc\u30cd\u30eb\u7a7a\u9593\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u3002
\n\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306e\u30d7\u30ed\u30bb\u30b9\u304b\u3089OS\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u901a\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u304c\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u3092\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3068\u3044\u3046\u3002
\n\u305d\u3057\u3066\u3053\u308c\u306f\u30d7\u30ed\u30bb\u30b9\u304c\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3068\u30ab\u30fc\u30cd\u30eb\u7a7a\u9593\u3067\u4ea4\u4e92\u306b\u5b9f\u884c\u3055\u308c\u308b\u4e8b\u3092\u793a\u3059\u3002
\n\u30ab\u30fc\u30cd\u30eb\u306fCPU\u306b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u5b9f\u88c5\u3055\u308c\u305f\u4fdd\u8b77\u6a5f\u69cb\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u81ea\u5206\u81ea\u8eab\u306e\u30e1\u30e2\u30ea\u9818\u57df\u3078\u306e\u307f\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306a\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n

xv6\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u4e00\u89a7<\/p>\n

fork()\t\u30d7\u30ed\u30bb\u30b9\u306e\u751f\u6210\r\nexit()\t\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\r\nwait()\t\u5b50\u30d7\u30ed\u30bb\u30b9\u3092\u5f85\u3064\r\nkill(pid)\tpid\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\r\ngetpid()\t\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u306epid\u3092\u8fd4\u3059\r\nsleep(n)\t\u5358\u4f4d\u6642\u9593 x n\u3060\u3051\u5bdd\u308b\r\nexec(filename, *argv)\t\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3093\u3067\u5b9f\u884c\u3059\u308b\r\nsbrk(n)\t\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u3092n\u30d0\u30a4\u30c8\u5897\u3084\u3059\r\nopen(filename, flags)\t\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\uff08flags\u306f\u8aad\u307f\u66f8\u304d\u30d5\u30e9\u30b0\uff09\r\nread(fd, buf, n)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u304b\u3089n\u30d0\u30a4\u30c8\u8aad\u307f\u8fbc\u3093\u3067buf\u306b\u5165\u308c\u308b\r\nwrite(fd, buf, n)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u306bbuf\u306e\u5185\u5bb9\u3092n\u30d0\u30a4\u30c8\u66f8\u304d\u8fbc\u307f\r\nclose(fd)\t\u958b\u3044\u3066\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u89e3\u653e\u3059\u308b\r\ndup(fd)\tfd\u3092\u8907\u88fd\u3059\u308b\r\npipe(p)\t\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3057\u3066p\u306efd\u3092\u8fd4\u3059\r\nchdir(dirname)\t\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u5909\u66f4\u3059\u308b\r\nmkdir(dirname)\t\u65b0\u3057\u3044\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3059\u308b\r\nmknod(name, major, minor)\t\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\r\nfstat(fd)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u60c5\u5831\u3092\u8fd4\u3059\r\nlink(f1, f2)\t\u30d5\u30a1\u30a4\u30ebf1\u306e\u5225\u540df2\u3092\u4f5c\u6210\r\nunlink(filename)\t\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b<\/pre>\n
\u30b7\u30a7\u30eb\u306f\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3067\u5b9f\u884c\u3055\u308c\u308b\u901a\u5e38\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u3063\u3066\u30ab\u30fc\u30cd\u30eb\u306e\u4e00\u90e8\u3067\u306f\u306a\u3044\u3002
\n\u5185\u90e8\u3067\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u308b\u3060\u3051\u3067\u3042\u308b\u3002
\n\u3060\u304b\u3089\u30b7\u30a7\u30eb\u3092\u5165\u308c\u66ff\u3048\u308b\u306e\u306f\u7c21\u5358\u3067\u3042\u308b\u3002
\n\u4e16\u306e\u4e2d\u306eUnix\u30d9\u30fc\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u591a\u304f\u306e\u30b7\u30a7\u30eb\u306e\u9078\u629e\u80a2\u3092\u6301\u3064\u3002
\nxv6\u306e\u30b7\u30a7\u30eb\u306fUnix Bourne shell\u3092\u5143\u306b\u3057\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u3082\u306e\u3067\u3042\u308b\u3002<\/p>\n
\u611f\u60f3<\/h3>\n
Chapter 0\u306e\u3055\u308f\u308a\u3063\u3066\u4e8b\u3082\u3042\u3063\u3066\u3001OS\u306e\u30b3\u30fc\u30c9\u66f8\u3044\u305f\u308a\u8aad\u3093\u3060\u308a\u3057\u305f\u3053\u3068\u306a\u304f\u3066\u3082\u4f55\u3068\u306a\u304f\u77e5\u3063\u3066\u308b\u5185\u5bb9\u3067\u3057\u305f\u3002
\n\u8aad\u307f\u9055\u3048\u3066\u306a\u3051\u308c\u3070xv6\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306f\u4e0a\u8a18\u3067\u5168\u3066\u306a\u306e\u3067\u3001\u50d5\u3067\u3082\u4e2d\u8eab\u3092\u7406\u89e3\u3067\u304d\u305d\u3046\u304b\u3082\u3068\u601d\u3048\u3066\u304d\u307e\u3057\u305f\u3002
\n\u4e00\u65e52\u30da\u30fc\u30b8\u3050\u3089\u3044\u306e\u30da\u30fc\u30b9\u3067\u30c6\u30ad\u30b9\u30c8\u3092\u8aad\u307f\u9032\u3081\u3089\u308c\u308c\u3070\u3044\u3044\u306a\u3041(*\u00b4\u2200\uff40*)\uff8e\uff9f\uff9c\uff9c<\/p>\n","protected":false},"excerpt":{"rendered":"
\u30c6\u30ad\u30b9\u30c8\u306e7,8\u30da\u30fc\u30b8<\/p>\n
\u6982\u8981<\/h3>\n
xv6\u306f\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3068\u30ab\u30fc\u30cd\u30eb\u7a7a\u9593\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u3002
\n\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306e\u30d7\u30ed\u30bb\u30b9\u304b\u3089OS\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u901a\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u304c\u63d0\u4f9b\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u3092\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3068\u3044\u3046\u3002
\n\u305d\u3057\u3066\u3053\u308c\u306f\u30d7\u30ed\u30bb\u30b9\u304c\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3068\u30ab\u30fc\u30cd\u30eb\u7a7a\u9593\u3067\u4ea4\u4e92\u306b\u5b9f\u884c\u3055\u308c\u308b\u4e8b\u3092\u793a\u3059\u3002
\n\u30ab\u30fc\u30cd\u30eb\u306fCPU\u306b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u5b9f\u88c5\u3055\u308c\u305f\u4fdd\u8b77\u6a5f\u69cb\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u81ea\u5206\u81ea\u8eab\u306e\u30e1\u30e2\u30ea\u9818\u57df\u3078\u306e\u307f\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306a\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
xv6\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u4e00\u89a7<\/p>\n
fork()\t\u30d7\u30ed\u30bb\u30b9\u306e\u751f\u6210\r\nexit()\t\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\r\nwait()\t\u5b50\u30d7\u30ed\u30bb\u30b9\u3092\u5f85\u3064\r\nkill(pid)\tpid\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\r\ngetpid()\t\u73fe\u5728\u306e\u30d7\u30ed\u30bb\u30b9\u306epid\u3092\u8fd4\u3059\r\nsleep(n)\t\u5358\u4f4d\u6642\u9593 x n\u3060\u3051\u5bdd\u308b\r\nexec(filename, *argv)\t\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3093\u3067\u5b9f\u884c\u3059\u308b\r\nsbrk(n)\t\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u3092n\u30d0\u30a4\u30c8\u5897\u3084\u3059\r\nopen(filename, flags)\t\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\uff08flags\u306f\u8aad\u307f\u66f8\u304d\u30d5\u30e9\u30b0\uff09\r\nread(fd, buf, n)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u304b\u3089n\u30d0\u30a4\u30c8\u8aad\u307f\u8fbc\u3093\u3067buf\u306b\u5165\u308c\u308b\r\nwrite(fd, buf, n)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u306bbuf\u306e\u5185\u5bb9\u3092n\u30d0\u30a4\u30c8\u66f8\u304d\u8fbc\u307f\r\nclose(fd)\t\u958b\u3044\u3066\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u89e3\u653e\u3059\u308b\r\ndup(fd)\tfd\u3092\u8907\u88fd\u3059\u308b\r\npipe(p)\t\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3057\u3066p\u306efd\u3092\u8fd4\u3059\r\nchdir(dirname)\t\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u5909\u66f4\u3059\u308b\r\nmkdir(dirname)\t\u65b0\u3057\u3044\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3059\u308b\r\nmknod(name, major, minor)\t\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\r\nfstat(fd)\t\u958b\u3044\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u60c5\u5831\u3092\u8fd4\u3059\r\nlink(f1, f2)\t\u30d5\u30a1\u30a4\u30ebf1\u306e\u5225\u540df2\u3092\u4f5c\u6210\r\nunlink(filename)\t\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\u3059\u308b<\/pre>\n
\u30b7\u30a7\u30eb\u306f\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u3067\u5b9f\u884c\u3055\u308c\u308b\u901a\u5e38\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u3063\u3066\u30ab\u30fc\u30cd\u30eb\u306e\u4e00\u90e8\u3067\u306f\u306a\u3044\u3002
\n\u5185\u90e8\u3067\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u308b\u3060\u3051\u3067\u3042\u308b\u3002
\n\u3060\u304b\u3089\u30b7\u30a7\u30eb\u3092\u5165\u308c\u66ff\u3048\u308b\u306e\u306f\u7c21\u5358\u3067\u3042\u308b\u3002
\n\u4e16\u306e\u4e2d\u306eUnix\u30d9\u30fc\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u591a\u304f\u306e\u30b7\u30a7\u30eb\u306e\u9078\u629e\u80a2\u3092\u6301\u3064\u3002
\nxv6\u306e\u30b7\u30a7\u30eb\u306fUnix Bourne shell\u3092\u5143\u306b\u3057\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u3082\u306e\u3067\u3042\u308b\u3002<\/p>\n
\u611f\u60f3<\/h3>\n
Chapter 0\u306e\u3055\u308f\u308a\u3063\u3066\u4e8b\u3082\u3042\u3063\u3066\u3001OS\u306e\u30b3\u30fc\u30c9\u66f8\u3044\u305f\u308a\u8aad\u3093\u3060\u308a\u3057\u305f\u3053\u3068\u306a\u304f\u3066\u3082\u4f55\u3068\u306a\u304f\u77e5\u3063\u3066\u308b\u5185\u5bb9\u3067\u3057\u305f\u3002
\n\u8aad\u307f\u9055\u3048\u3066\u306a\u3051\u308c\u3070xv6\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306f\u4e0a\u8a18\u3067\u5168\u3066\u306a\u306e\u3067\u3001\u50d5\u3067\u3082\u4e2d\u8eab\u3092\u7406\u89e3\u3067\u304d\u305d\u3046\u304b\u3082\u3068\u601d\u3048\u3066\u304d\u307e\u3057\u305f\u3002
\n\u4e00\u65e52\u30da\u30fc\u30b8\u3050\u3089\u3044\u306e\u30da\u30fc\u30b9\u3067\u30c6\u30ad\u30b9\u30c8\u3092\u8aad\u307f\u9032\u3081\u3089\u308c\u308c\u3070\u3044\u3044\u306a\u3041(*\u00b4\u2200\uff40*)\uff8e\uff9f\uff9c\uff9c<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[405],"class_list":["post-1215","post","type-post","status-publish","format-standard","hentry","category-tech","tag-xv6"],"_links":{"self":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/1215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/comments?post=1215"}],"version-history":[{"count":0,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/1215\/revisions"}],"wp:attachment":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/media?parent=1215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/categories?post=1215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/tags?post=1215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}