{"id":1234,"date":"2012-02-09T20:10:29","date_gmt":"2012-02-09T11:10:29","guid":{"rendered":"http:\/\/peta.okechan.net\/blog\/?p=1234"},"modified":"2013-02-01T14:30:45","modified_gmt":"2013-02-01T05:30:45","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%ae4","status":"publish","type":"post","link":"https:\/\/peta.okechan.net\/blog\/archives\/1234","title":{"rendered":"[xv6 #4] Chapter 0 – Operating system interfaces – Code: Pipes"},"content":{"rendered":"

\u30c6\u30ad\u30b9\u30c8\u306e12\u301c14\u30da\u30fc\u30b8<\/p>\n

\u672c\u6587<\/h3>\n

pipe\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u7d44\uff08\u4e00\u65b9\u306f\u8aad\u307f\u8fbc\u307f\u3001\u3082\u3046\u4e00\u65b9\u306f\u66f8\u304d\u8fbc\u307f\uff09\u3067\u3042\u308a\u3001\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u7528\u306b\u30ab\u30fc\u30cd\u30eb\u3067\u63d0\u4f9b\u3055\u308c\u308b\u5c0f\u5bb9\u91cf\u306e\u30d0\u30c3\u30d5\u30a1\u3067\u3042\u308b\u3002
\n\u30d1\u30a4\u30d7\u306e\u4e00\u65b9\u306e\u7aef\u304b\u3089\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u3053\u3080\u3068\u3001\u3082\u3046\u4e00\u65b9\u306e\u7aef\u304b\u3089\u305d\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u51fa\u6765\u308b\u3002
\n\u30d1\u30a4\u30d7\u306b\u3088\u3063\u3066\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u304c\u53ef\u80fd\u3068\u306a\u308b\u3002<\/p>\n

\u6b21\u306e\u30b3\u30fc\u30c9\u306f\u3001\u6a19\u6e96\u5165\u529b\u306e\u4ee3\u308f\u308a\u306b\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u3092\u5272\u308a\u5f53\u3066\u3001wc\u3068\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u3002<\/p>\n

int p[2];\r\nchar *argv[2];\r\n\r\nargv[0] = "wc";\r\nargv[1] = 0;\r\n\r\npipe(p);\r\nif(fork() == 0) {\r\n  close(0);\r\n  dup(p[0]);\r\n  close(p[0]);\r\n  close(p[1]);\r\n  exec("\/bin\/wc", argv);\r\n} else {\r\n  write(p[1], "hello world\\n", 12);\r\n  close(p[0]);\r\n  close(p[1]);\r\n}<\/pre>\n
\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u65b0\u3057\u3044\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306bpipe\u3092\u547c\u3093\u3067\u3044\u308b\u3002
\npipe\u3092\u547c\u3076\u3068\u3001\u914d\u5217p\u306b\u8aad\u307f\u8fbc\u307f\u7528\u3068\u66f8\u304d\u8fbc\u307f\u7528\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3002
\nfork\u3057\u305f\u5f8c\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u3068\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u4e21\u65b9\u306f\u30d1\u30a4\u30d7\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u7d44\u3092\u6301\u3064\u3053\u3068\u306b\u306a\u308b\u3002
\n\u5b50\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c0\u306b\u306a\u308b\u3088\u3046\u306b\u8907\u88fd\u3059\u308b\u3002
\n\uff08close(0)\u3057\u305f\u76f4\u5f8c\u306bdup(p[0])\u3057\u3066\u308b\u306e\u3067\u3001\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u306f\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf0\u306b\u5272\u5f53\u3066\u3089\u308c\u308b\uff09
\n\u305d\u3057\u3066p\u304c\u4fdd\u6301\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u4e8c\u3064\u3068\u3082\u9589\u3058\u3001\u305d\u3057\u3066wc\u3092\u5b9f\u884c\u3059\u308b\u3002
\nwc\u304c\u305d\u306e\u51e6\u7406\u306e\u4e2d\u3067\u6a19\u6e96\u5165\u529b\u304b\u3089\u8aad\u307f\u8fbc\u3082\u3046\u3068\u3059\u308b\u3068\u304d\u3001\u305d\u308c\u306f\u30d1\u30a4\u30d7\u304b\u3089\u8aad\u307f\u53d6\u308b\u3053\u3068\u306b\u306a\u308b\u3002
\n\u89aa\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u304b\u3089\u66f8\u304d\u8fbc\u307f\u3001\u305d\u3057\u3066\u305d\u306e\u5f8c\u4e21\u65b9\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u9589\u3058\u308b\u3002<\/p>\n
\u3082\u3057\u30c7\u30fc\u30bf\u304c\u6e96\u5099\u3067\u304d\u3066\u306a\u3044\u5834\u5408\u3001\u30d1\u30a4\u30d7\u306b\u5bfe\u3059\u308bread\u306f\u3001\u30c7\u30fc\u30bf\u304c\u66f8\u304d\u8fbc\u307e\u308c\u308b\u304b\u3001\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b”\u5168\u3066\u306e”\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u9589\u3058\u3089\u308c\u308b\u307e\u3067\u5f85\u3064\u3002
\n\u5f8c\u8005\u306e\u5834\u5408\uff08\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u5168\u3066\u9589\u3058\u3089\u308c\u305f\u5834\u5408\uff09\u3001\u3061\u3087\u3046\u3069\u30d5\u30a1\u30a4\u30eb\u306e\u672b\u5c3e\u307e\u3067\u8aad\u3093\u3067\u3057\u307e\u3063\u305f\u3068\u304d\u3068\u540c\u3058\u3088\u3046\u306b\u3001read\u306f0\u3092\u8fd4\u3059\u3002
\n\u3053\u306e\u300c\u3082\u3046\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u304c\u6765\u306a\u3044\u3068\u30cf\u30c3\u30ad\u30ea\u3059\u308b\u307e\u3067read\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u300d\u3068\u3044\u3046\u4e8b\u5b9f\u306f\u3001wc\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u9589\u3058\u308b\u91cd\u8981\u306a\u3072\u3068\u3064\u306e\u7406\u7531\u3067\u3042\u308b\u3002
\n\u3082\u3057wc\u304c\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u6301\u3063\u305f\u307e\u307e\u3060\u3068\u3001wc\u306fend-of-file\u3092\u898b\u308b\u3053\u3068\u306f\u306a\u3044\u3060\u308d\u3046\u3002\uff08\u30d5\u30ea\u30fc\u30ba\u3059\u308b\uff09
\n\uff08\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u5168\u3066\u9589\u3058\u3089\u308c\u306a\u3051\u308c\u3070EOF\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u5074\u3060\u3051\u3067\u306f\u306a\u304f\u5b50\u30d7\u30ed\u30bb\u30b9\u5074\u306e\u3082\u9589\u3058\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3063\u3066\u3053\u3068\uff09<\/p>\n
xv6\u306e\u30b7\u30a7\u30eb\u306f\u3001\u4e0a\u306e\u30b3\u30fc\u30c9\u3068\u4f3c\u305f\u4f5c\u6cd5\u3067\u30d1\u30a4\u30d7\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3002
\n\uff08\u5b9f\u969b\u306esh.c runcmd\u95a2\u6570\u306e\u30d1\u30a4\u30d7\u95a2\u9023\u306e\u90e8\u5206\u3002\u524d\u3005\u56de\u3082\u8f09\u305b\u3066\u308b\u3051\u3069\u307e\u305f\u8f09\u305b\u3068\u304d\u307e\u3059\u3002\uff09<\/p>\n
case PIPE:\r\n  pcmd = (struct pipecmd*)cmd;\r\n  if(pipe(p) < 0)\r\n    panic("pipe");\r\n  if(fork1() == 0){\r\n    close(1);\r\n    dup(p[1]);\r\n    close(p[0]);\r\n    close(p[1]);\r\n    runcmd(pcmd->left);\r\n  }\r\n  if(fork1() == 0){\r\n    close(0);\r\n    dup(p[0]);\r\n    close(p[0]);\r\n    close(p[1]);\r\n    runcmd(pcmd->right);\r\n  }\r\n  close(p[0]);\r\n  close(p[1]);\r\n  wait();\r\n  wait();\r\n  break;<\/pre>\n
\u307e\u305a\u3001\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u3068\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3059\u308b\u3002
\n\uff08\u5de6\u5074\u30fb\u53f3\u5074\u3068\u3044\u3046\u306e\u306f\u4f8b\u3048\u3070”ls | wc”\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u306e\u5834\u5408\u306fls\u3068wc\u3092\u6307\u3059\uff09
\n\u305d\u3057\u3066\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u30fb\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u305d\u308c\u305e\u308c\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306bruncmd\u3092\u547c\u3073\u3001\u305d\u306e2\u3064\u306e\u30b3\u30de\u30f3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3064\u305f\u3081\u306bwait\u30922\u56de\u547c\u3076\u3002
\n\u4f8b\u3048\u3070”a | b | c”\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001\u307e\u305a\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u306f”a”\u3001\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u306f”b | c”\u3068\u3057\u30662\u3064\u306e\u5b50\u30d7\u30ed\u30bb\u30b9\u306b\u30d5\u30a9\u30fc\u30af\u3057\u3001\u3055\u3089\u306b\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9”b | c”\u306b\u5bfe\u5fdc\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u5de6\u5074”b”\u3001\u53f3\u5074”c”\u3068\u3057\u30662\u3064\u306e\u5b50\u30d7\u30ed\u30bb\u30b9\u306b\u30d5\u30a9\u30fc\u30af\u3059\u308b\u3002
\n\u3064\u307e\u308a\u3001\u30b7\u30a7\u30eb\u304c\u3053\u306e\u3088\u3046\u306a\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u304d\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u30c4\u30ea\u30fc\u304c\u5f62\u6210\u3055\u308c\u308b\u3002
\n\u3053\u306e\u30c4\u30ea\u30fc\u306e\u672b\u7aef\u306f\u6700\u5c0f\u5358\u4f4d\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3042\u308a\u3001\u672b\u7aef\u4ee5\u5916\u306e\u30ce\u30fc\u30c9\uff08\u5185\u90e8\u30ce\u30fc\u30c9\uff09\u306f\u5de6\u53f3\u306e\u30b3\u30de\u30f3\u30c9\u306b\u5bfe\u5fdc\u3059\u308b\u5b50\u30d7\u30ed\u30bb\u30b9\u304c\u7d42\u4e86\u3059\u308b\u306e\u3092\u5f85\u3064\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u3002
\n\u539f\u7406\u7684\u306b\u306f\u3001\u5185\u90e8\u30ce\u30fc\u30c9\u306b\u30d1\u30a4\u30d7\u306e\u5de6\u7aef\u3092\u53d7\u3051\u6301\u305f\u305b\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u304c\u3001\u305d\u3046\u3059\u308b\u3068\u5b9f\u88c5\u306f\u8907\u96d1\u306b\u306a\u308b\u3002<\/p>\n
\u30d1\u30a4\u30d7\u306f\u3001\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u3068\u6bd4\u3079\u7279\u306b\u512a\u308c\u3066\u308b\u3001\u3068\u3044\u3046\u98a8\u306b\u306f\u898b\u3048\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3002
\n\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3”echo hello world | wc”\u306f\u30d1\u30a4\u30d7\u7121\u3057\u3067”echo hello world >\/tmp\/xyz; wc <\/tmp\/xyz”\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u3002
\n\u3057\u304b\u3057\u30d1\u30a4\u30d7\u3068\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u91cd\u8981\u306a\u9055\u3044\u304c\u6700\u4f4e\u3067\u30823\u3064\u3042\u308b\u3002
\n\u4e00\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u51e6\u7406\u304c\u7d42\u308f\u308b\u3068\u81ea\u52d5\u3067\u6d88\u53bb\u3055\u308c\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u3060\u3068\u3001\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u3042\u3068\u30b7\u30a7\u30eb\u306f\u6ce8\u610f\u6df1\u304f\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u3092\u6d88\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u308b\u3002
\n\u4e8c\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u5927\u304d\u306a\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4efb\u610f\u306b\u901a\u3059\u3053\u3068\u304c\u51fa\u6765\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u308b\u3068\u3001\u5168\u90e8\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u7ba1\u3067\u304d\u308b\u7a7a\u304d\u5bb9\u91cf\u304c\u30c7\u30a3\u30b9\u30af\u306b\u3042\u308b\u304b\u6c17\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u308b\u3002
\n\u4e09\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u540c\u671f\u901a\u4fe1\u304c\u51fa\u6765\u308b\u3002
\n2\u3064\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001write\u3067\u30c7\u30fc\u30bf\u304c\u9001\u3089\u308c\u308b\u307e\u3067read\u3057\u305f\u5074\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u4ed5\u7d44\u307f\u3092\u5229\u7528\u3057\u3066\u304a\u4e92\u3044\u306b\u540c\u671f\u7684\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u53d7\u4fe1\u3067\u304d\u308b\u3002<\/p>\n
\u611f\u60f3<\/h3>\n
\u30d1\u30a4\u30d7\u3067\u3059\u3002
\n\u304b\u306a\u308a\u4e71\u66b4\u306b\u8a00\u3048\u3070\u3001\u898b\u305f\u76ee\u7684\u306b\u306f\u30b7\u30a7\u30eb\u3067\u30b3\u30de\u30f3\u30c9\u3092\u9023\u643a\u3055\u305b\u308b\u3068\u304d\u306b\u4f7f\u3046\u7e26\u68d2\u3067\u3059\u306d\u3002
\n\u3042\u308c\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3069\u3046\u5b9f\u88c5\u3059\u308b\u304b\u306e\u6982\u8981\u3067\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306f\u4e00\u3064\u306e\u30d1\u30a4\u30d7\u306e\u4e00\u3064\u306e\u7aef\u306b\u5bfe\u3057\u3066\u3044\u304f\u3064\u3082\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u4f8b\u3067\u306f\u89aa\u30d7\u30ed\u30bb\u30b9\u3068\u5b50\u30d7\u30ed\u30bb\u30b9\u3067\u3001\u540c\u3058\u30d1\u30a4\u30d7\u306e\u7aef\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u305d\u308c\u305e\u308c\u6301\u3063\u3066\u307e\u3059\u3002
\n\u305d\u306e\u53c2\u7167\u3057\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u5168\u90e8close\u3057\u306a\u3044\u3068read\u5074\u306bEOF\u304c\u4f1d\u308f\u3089\u306a\u3044\u3063\u3066\u3068\u3053\u308d\u306f\u91cd\u8981\u304b\u3068\u601d\u3044\u307e\u3059\u3002
\n\u77e5\u3089\u305a\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u66f8\u3044\u305f\u3089\u306a\u3093\u3067\u30d5\u30ea\u30fc\u30ba\u3059\u308b\u3093\u3060\u308d\u3046\u3063\u3066\u982d\u3092\u60a9\u307e\u305b\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u306d\u3002
\nPython\u7b49\u3067\u30d1\u30a4\u30d7\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3044\u304f\u3064\u304b\u66f8\u3044\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001read\u5074\u3067\u30d6\u30ed\u30c3\u30af\u3057\u307e\u304f\u308a\u3067\u982d\u3092\u60a9\u307e\u305b\u305f\u899a\u3048\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3053\u3046\u3044\u3046\u4ed5\u7d44\u307f\u3092\u77e5\u3063\u3066\u305f\u3089\u3082\u3063\u3068\u3059\u3093\u306a\u308a\u884c\u3051\u305f\u306e\u304b\u306a\u3041\u3002<\/p>\n
\u9014\u4e2d\u30d7\u30ed\u30bb\u30b9\u306e\u30c4\u30ea\u30fc\u306e\u6240\u306e\u6587\u7ae0\u304c\u5206\u304b\u308a\u3065\u3089\u3044\u3067\u3059\u304c\u3001\u7d75\u306b\u3059\u308b\u3068\u591a\u5206\u3053\u3093\u306a\u611f\u3058\u306e\u3053\u3068\u304b\u306a\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u30c6\u30ad\u30b9\u30c8\u306e12\u301c14\u30da\u30fc\u30b8<\/p>\n
\u672c\u6587<\/h3>\n
pipe\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u7d44\uff08\u4e00\u65b9\u306f\u8aad\u307f\u8fbc\u307f\u3001\u3082\u3046\u4e00\u65b9\u306f\u66f8\u304d\u8fbc\u307f\uff09\u3067\u3042\u308a\u3001\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u7528\u306b\u30ab\u30fc\u30cd\u30eb\u3067\u63d0\u4f9b\u3055\u308c\u308b\u5c0f\u5bb9\u91cf\u306e\u30d0\u30c3\u30d5\u30a1\u3067\u3042\u308b\u3002
\n\u30d1\u30a4\u30d7\u306e\u4e00\u65b9\u306e\u7aef\u304b\u3089\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u3053\u3080\u3068\u3001\u3082\u3046\u4e00\u65b9\u306e\u7aef\u304b\u3089\u305d\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u3053\u3068\u304c\u51fa\u6765\u308b\u3002
\n\u30d1\u30a4\u30d7\u306b\u3088\u3063\u3066\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u304c\u53ef\u80fd\u3068\u306a\u308b\u3002<\/p>\n
\u6b21\u306e\u30b3\u30fc\u30c9\u306f\u3001\u6a19\u6e96\u5165\u529b\u306e\u4ee3\u308f\u308a\u306b\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u3092\u5272\u308a\u5f53\u3066\u3001wc\u3068\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u3002<\/p>\n
int p[2];\r\nchar *argv[2];\r\n\r\nargv[0] = "wc";\r\nargv[1] = 0;\r\n\r\npipe(p);\r\nif(fork() == 0) {\r\n  close(0);\r\n  dup(p[0]);\r\n  close(p[0]);\r\n  close(p[1]);\r\n  exec("\/bin\/wc", argv);\r\n} else {\r\n  write(p[1], "hello world\\n", 12);\r\n  close(p[0]);\r\n  close(p[1]);\r\n}<\/pre>\n
\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u65b0\u3057\u3044\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306bpipe\u3092\u547c\u3093\u3067\u3044\u308b\u3002
\npipe\u3092\u547c\u3076\u3068\u3001\u914d\u5217p\u306b\u8aad\u307f\u8fbc\u307f\u7528\u3068\u66f8\u304d\u8fbc\u307f\u7528\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3002
\nfork\u3057\u305f\u5f8c\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u3068\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u4e21\u65b9\u306f\u30d1\u30a4\u30d7\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u7d44\u3092\u6301\u3064\u3053\u3068\u306b\u306a\u308b\u3002
\n\u5b50\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c0\u306b\u306a\u308b\u3088\u3046\u306b\u8907\u88fd\u3059\u308b\u3002
\n\uff08close(0)\u3057\u305f\u76f4\u5f8c\u306bdup(p[0])\u3057\u3066\u308b\u306e\u3067\u3001\u30d1\u30a4\u30d7\u306e\u8aad\u307f\u8fbc\u307f\u5074\u306f\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf0\u306b\u5272\u5f53\u3066\u3089\u308c\u308b\uff09
\n\u305d\u3057\u3066p\u304c\u4fdd\u6301\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u4e8c\u3064\u3068\u3082\u9589\u3058\u3001\u305d\u3057\u3066wc\u3092\u5b9f\u884c\u3059\u308b\u3002
\nwc\u304c\u305d\u306e\u51e6\u7406\u306e\u4e2d\u3067\u6a19\u6e96\u5165\u529b\u304b\u3089\u8aad\u307f\u8fbc\u3082\u3046\u3068\u3059\u308b\u3068\u304d\u3001\u305d\u308c\u306f\u30d1\u30a4\u30d7\u304b\u3089\u8aad\u307f\u53d6\u308b\u3053\u3068\u306b\u306a\u308b\u3002
\n\u89aa\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u304b\u3089\u66f8\u304d\u8fbc\u307f\u3001\u305d\u3057\u3066\u305d\u306e\u5f8c\u4e21\u65b9\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u9589\u3058\u308b\u3002<\/p>\n
\u3082\u3057\u30c7\u30fc\u30bf\u304c\u6e96\u5099\u3067\u304d\u3066\u306a\u3044\u5834\u5408\u3001\u30d1\u30a4\u30d7\u306b\u5bfe\u3059\u308bread\u306f\u3001\u30c7\u30fc\u30bf\u304c\u66f8\u304d\u8fbc\u307e\u308c\u308b\u304b\u3001\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b”\u5168\u3066\u306e”\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u9589\u3058\u3089\u308c\u308b\u307e\u3067\u5f85\u3064\u3002
\n\u5f8c\u8005\u306e\u5834\u5408\uff08\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u5168\u3066\u9589\u3058\u3089\u308c\u305f\u5834\u5408\uff09\u3001\u3061\u3087\u3046\u3069\u30d5\u30a1\u30a4\u30eb\u306e\u672b\u5c3e\u307e\u3067\u8aad\u3093\u3067\u3057\u307e\u3063\u305f\u3068\u304d\u3068\u540c\u3058\u3088\u3046\u306b\u3001read\u306f0\u3092\u8fd4\u3059\u3002
\n\u3053\u306e\u300c\u3082\u3046\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u304c\u6765\u306a\u3044\u3068\u30cf\u30c3\u30ad\u30ea\u3059\u308b\u307e\u3067read\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u300d\u3068\u3044\u3046\u4e8b\u5b9f\u306f\u3001wc\u3092\u5b9f\u884c\u3059\u308b\u524d\u306b\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u9589\u3058\u308b\u91cd\u8981\u306a\u3072\u3068\u3064\u306e\u7406\u7531\u3067\u3042\u308b\u3002
\n\u3082\u3057wc\u304c\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u6301\u3063\u305f\u307e\u307e\u3060\u3068\u3001wc\u306fend-of-file\u3092\u898b\u308b\u3053\u3068\u306f\u306a\u3044\u3060\u308d\u3046\u3002\uff08\u30d5\u30ea\u30fc\u30ba\u3059\u308b\uff09
\n\uff08\u30d1\u30a4\u30d7\u306e\u66f8\u304d\u8fbc\u307f\u5074\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u5168\u3066\u9589\u3058\u3089\u308c\u306a\u3051\u308c\u3070EOF\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u5074\u3060\u3051\u3067\u306f\u306a\u304f\u5b50\u30d7\u30ed\u30bb\u30b9\u5074\u306e\u3082\u9589\u3058\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3063\u3066\u3053\u3068\uff09<\/p>\n
xv6\u306e\u30b7\u30a7\u30eb\u306f\u3001\u4e0a\u306e\u30b3\u30fc\u30c9\u3068\u4f3c\u305f\u4f5c\u6cd5\u3067\u30d1\u30a4\u30d7\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3002
\n\uff08\u5b9f\u969b\u306esh.c runcmd\u95a2\u6570\u306e\u30d1\u30a4\u30d7\u95a2\u9023\u306e\u90e8\u5206\u3002\u524d\u3005\u56de\u3082\u8f09\u305b\u3066\u308b\u3051\u3069\u307e\u305f\u8f09\u305b\u3068\u304d\u307e\u3059\u3002\uff09<\/p>\n
case PIPE:\r\n  pcmd = (struct pipecmd*)cmd;\r\n  if(pipe(p) < 0)\r\n    panic("pipe");\r\n  if(fork1() == 0){\r\n    close(1);\r\n    dup(p[1]);\r\n    close(p[0]);\r\n    close(p[1]);\r\n    runcmd(pcmd->left);\r\n  }\r\n  if(fork1() == 0){\r\n    close(0);\r\n    dup(p[0]);\r\n    close(p[0]);\r\n    close(p[1]);\r\n    runcmd(pcmd->right);\r\n  }\r\n  close(p[0]);\r\n  close(p[1]);\r\n  wait();\r\n  wait();\r\n  break;<\/pre>\n
\u307e\u305a\u3001\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u3068\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u30d1\u30a4\u30d7\u3092\u751f\u6210\u3059\u308b\u3002
\n\uff08\u5de6\u5074\u30fb\u53f3\u5074\u3068\u3044\u3046\u306e\u306f\u4f8b\u3048\u3070”ls | wc”\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u306e\u5834\u5408\u306fls\u3068wc\u3092\u6307\u3059\uff09
\n\u305d\u3057\u3066\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u30fb\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u305d\u308c\u305e\u308c\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306bruncmd\u3092\u547c\u3073\u3001\u305d\u306e2\u3064\u306e\u30b3\u30de\u30f3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3064\u305f\u3081\u306bwait\u30922\u56de\u547c\u3076\u3002
\n\u4f8b\u3048\u3070”a | b | c”\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001\u307e\u305a\u5de6\u5074\u306e\u30b3\u30de\u30f3\u30c9\u306f”a”\u3001\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9\u306f”b | c”\u3068\u3057\u30662\u3064\u306e\u5b50\u30d7\u30ed\u30bb\u30b9\u306b\u30d5\u30a9\u30fc\u30af\u3057\u3001\u3055\u3089\u306b\u53f3\u5074\u306e\u30b3\u30de\u30f3\u30c9”b | c”\u306b\u5bfe\u5fdc\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u5de6\u5074”b”\u3001\u53f3\u5074”c”\u3068\u3057\u30662\u3064\u306e\u5b50\u30d7\u30ed\u30bb\u30b9\u306b\u30d5\u30a9\u30fc\u30af\u3059\u308b\u3002
\n\u3064\u307e\u308a\u3001\u30b7\u30a7\u30eb\u304c\u3053\u306e\u3088\u3046\u306a\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u304d\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u30c4\u30ea\u30fc\u304c\u5f62\u6210\u3055\u308c\u308b\u3002
\n\u3053\u306e\u30c4\u30ea\u30fc\u306e\u672b\u7aef\u306f\u6700\u5c0f\u5358\u4f4d\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3042\u308a\u3001\u672b\u7aef\u4ee5\u5916\u306e\u30ce\u30fc\u30c9\uff08\u5185\u90e8\u30ce\u30fc\u30c9\uff09\u306f\u5de6\u53f3\u306e\u30b3\u30de\u30f3\u30c9\u306b\u5bfe\u5fdc\u3059\u308b\u5b50\u30d7\u30ed\u30bb\u30b9\u304c\u7d42\u4e86\u3059\u308b\u306e\u3092\u5f85\u3064\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u3002
\n\u539f\u7406\u7684\u306b\u306f\u3001\u5185\u90e8\u30ce\u30fc\u30c9\u306b\u30d1\u30a4\u30d7\u306e\u5de6\u7aef\u3092\u53d7\u3051\u6301\u305f\u305b\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u304c\u3001\u305d\u3046\u3059\u308b\u3068\u5b9f\u88c5\u306f\u8907\u96d1\u306b\u306a\u308b\u3002<\/p>\n
\u30d1\u30a4\u30d7\u306f\u3001\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u3068\u6bd4\u3079\u7279\u306b\u512a\u308c\u3066\u308b\u3001\u3068\u3044\u3046\u98a8\u306b\u306f\u898b\u3048\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3002
\n\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3”echo hello world | wc”\u306f\u30d1\u30a4\u30d7\u7121\u3057\u3067”echo hello world >\/tmp\/xyz; wc <\/tmp\/xyz”\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u3002
\n\u3057\u304b\u3057\u30d1\u30a4\u30d7\u3068\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u91cd\u8981\u306a\u9055\u3044\u304c\u6700\u4f4e\u3067\u30823\u3064\u3042\u308b\u3002
\n\u4e00\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u51e6\u7406\u304c\u7d42\u308f\u308b\u3068\u81ea\u52d5\u3067\u6d88\u53bb\u3055\u308c\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u3060\u3068\u3001\u51e6\u7406\u304c\u7d42\u308f\u3063\u305f\u3042\u3068\u30b7\u30a7\u30eb\u306f\u6ce8\u610f\u6df1\u304f\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u3092\u6d88\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u308b\u3002
\n\u4e8c\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u5927\u304d\u306a\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4efb\u610f\u306b\u901a\u3059\u3053\u3068\u304c\u51fa\u6765\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u308b\u3068\u3001\u5168\u90e8\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u7ba1\u3067\u304d\u308b\u7a7a\u304d\u5bb9\u91cf\u304c\u30c7\u30a3\u30b9\u30af\u306b\u3042\u308b\u304b\u6c17\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u308b\u3002
\n\u4e09\u3064\u76ee\u3001\u30d1\u30a4\u30d7\u306f\u540c\u671f\u901a\u4fe1\u304c\u51fa\u6765\u308b\u3002
\n2\u3064\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001write\u3067\u30c7\u30fc\u30bf\u304c\u9001\u3089\u308c\u308b\u307e\u3067read\u3057\u305f\u5074\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u4ed5\u7d44\u307f\u3092\u5229\u7528\u3057\u3066\u304a\u4e92\u3044\u306b\u540c\u671f\u7684\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u53d7\u4fe1\u3067\u304d\u308b\u3002<\/p>\n
\u611f\u60f3<\/h3>\n
\u30d1\u30a4\u30d7\u3067\u3059\u3002
\n\u304b\u306a\u308a\u4e71\u66b4\u306b\u8a00\u3048\u3070\u3001\u898b\u305f\u76ee\u7684\u306b\u306f\u30b7\u30a7\u30eb\u3067\u30b3\u30de\u30f3\u30c9\u3092\u9023\u643a\u3055\u305b\u308b\u3068\u304d\u306b\u4f7f\u3046\u7e26\u68d2\u3067\u3059\u306d\u3002
\n\u3042\u308c\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3069\u3046\u5b9f\u88c5\u3059\u308b\u304b\u306e\u6982\u8981\u3067\u3059\u3002<\/p>\n
\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306f\u4e00\u3064\u306e\u30d1\u30a4\u30d7\u306e\u4e00\u3064\u306e\u7aef\u306b\u5bfe\u3057\u3066\u3044\u304f\u3064\u3082\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u4f8b\u3067\u306f\u89aa\u30d7\u30ed\u30bb\u30b9\u3068\u5b50\u30d7\u30ed\u30bb\u30b9\u3067\u3001\u540c\u3058\u30d1\u30a4\u30d7\u306e\u7aef\u3092\u53c2\u7167\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u305d\u308c\u305e\u308c\u6301\u3063\u3066\u307e\u3059\u3002
\n\u305d\u306e\u53c2\u7167\u3057\u3066\u308b\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u5168\u90e8close\u3057\u306a\u3044\u3068read\u5074\u306bEOF\u304c\u4f1d\u308f\u3089\u306a\u3044\u3063\u3066\u3068\u3053\u308d\u306f\u91cd\u8981\u304b\u3068\u601d\u3044\u307e\u3059\u3002
\n\u77e5\u3089\u305a\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u66f8\u3044\u305f\u3089\u306a\u3093\u3067\u30d5\u30ea\u30fc\u30ba\u3059\u308b\u3093\u3060\u308d\u3046\u3063\u3066\u982d\u3092\u60a9\u307e\u305b\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u306d\u3002
\nPython\u7b49\u3067\u30d1\u30a4\u30d7\u3092\u4f7f\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3044\u304f\u3064\u304b\u66f8\u3044\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001read\u5074\u3067\u30d6\u30ed\u30c3\u30af\u3057\u307e\u304f\u308a\u3067\u982d\u3092\u60a9\u307e\u305b\u305f\u899a\u3048\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3053\u3046\u3044\u3046\u4ed5\u7d44\u307f\u3092\u77e5\u3063\u3066\u305f\u3089\u3082\u3063\u3068\u3059\u3093\u306a\u308a\u884c\u3051\u305f\u306e\u304b\u306a\u3041\u3002<\/p>\n
\u9014\u4e2d\u30d7\u30ed\u30bb\u30b9\u306e\u30c4\u30ea\u30fc\u306e\u6240\u306e\u6587\u7ae0\u304c\u5206\u304b\u308a\u3065\u3089\u3044\u3067\u3059\u304c\u3001\u7d75\u306b\u3059\u308b\u3068\u591a\u5206\u3053\u3093\u306a\u611f\u3058\u306e\u3053\u3068\u304b\u306a\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\"\"<\/a><\/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-1234","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\/1234","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=1234"}],"version-history":[{"count":0,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/1234\/revisions"}],"wp:attachment":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/media?parent=1234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/categories?post=1234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/tags?post=1234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}