{"id":4073,"date":"2014-04-16T11:15:35","date_gmt":"2014-04-16T02:15:35","guid":{"rendered":"http:\/\/www.vincentina.net\/?p=4073"},"modified":"2014-04-16T11:44:37","modified_gmt":"2014-04-16T02:44:37","slug":"%e3%81%9f%e3%82%89%e3%81%93%e9%b1%88%e3%81%ae%e5%ad%90%e3%80%81%e3%81%93%e3%81%ae%e5%ad%90%e3%81%a9%e3%81%93%e3%81%ae%e5%ad%90","status":"publish","type":"post","link":"https:\/\/www.vincentina.net\/?p=4073","title":{"rendered":"\u305f\u3089\u3053\u9c48\u306e\u5b50\u3001\u3053\u306e\u5b50\u3069\u3053\u306e\u5b50"},"content":{"rendered":"<p>\u69cb\u9020\u4f53\u304c\u5206\u304b\u3089\u306a\u304f\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u9032\u3093\u3067\u306a\u304b\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u3082\u3046\u3044\u3044\u3084\uff5e\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3084\u308a\u3060\u3057\u3066\u307f\u305f\u3089\u3001\u306a\u308b\u307b\u3069\uff01\u3068\u3044\u3046\u611f\u3058\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u3055\u3055\u3063\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3084\u3063\u3066\u3057\u307e\u3063\u3066\u3066\u3082\u826f\u304b\u3063\u305f\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p><a href=\"http:\/\/foxism.net\/\" target=\"_blank\">\u304b\u307c\u3061\u3083<\/a>\u3055\u3093\u304c\u4ee5\u524d\u304a\u3063\u3057\u3083\u3063\u3066\u3044\u305f\u69cb\u9020\u4f53\u306e\u30ad\u30e3\u30b9\u30c8\u3082\u30ac\u30f3\u30ac\u30f3\u51fa\u3066\u304d\u3066\u308b\u306e\u3060\u304c\u3001\u3082\u3057\u304b\u3057\u305f\u3089\u305d\u306e\u8fba\u306e\u3053\u3068\u3092\u77e5\u3063\u3066\u305f\u306e\u3067\u982d\u304c\u7406\u89e3\u3057\u3084\u3059\u3044\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u305f\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u30b5\u30f3\u30af\u30b9\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u30b5\u30fc\u30d0\u30fc\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u9593\u306e\u3084\u308a\u53d6\u308a\u3092\u3059\u308b\u3068\u304d\u306b\u3001\u4f8b\u984c\u3060\u3068\u3060\u3044\u305f\u30441\u5bfe1\u3067\u3059\u304c\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u306f1\u5bfe\u591a\u6570\u3068\u3044\u3046\u306e\u306f\u5f53\u305f\u308a\u524d\u306a\u306e\u3067\u3059\u3002\u3069\u3046\u3084\u3063\u3066\u3044\u308b\u304b\u3068\u3044\u3046\u4e8b\u3092\u8d85\u3056\u3063\u304f\u308a\u3068\u8aac\u660e\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306f\u5b50\u30d7\u30ed\u30bb\u30b9\u3092\u751f\u6210\u3057\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u306e\u51e6\u7406\u3092\u5b50\u30d7\u30ed\u30bb\u30b9\u306b\u3084\u3063\u3066\u3082\u3089\u3046\u3002\u3063\u3066\u3044\u3046\u611f\u3058\u3067\u3001Apache\u3092\u89e6\u3063\u305f\u4e8b\u304c\u3042\u308b\u4eba\u306a\u3089\u305d\u308c\u306f\u5272\u3068\u77e5\u3063\u3066\u3044\u308b\u4e8b\u3060\u3051\u3069\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5074\u304b\u3089\u5165\u3063\u3066\u304d\u305f\u3089\u306a\u308b\u307b\u3069\uff01\u3068\u3001\u306a\u304a\u7406\u89e3\u3057\u3084\u3059\u3044\u3002<\/p>\n<p>\u305f\u3060Apache\u3092\u4f8b\u306b\u3059\u308b\u3068\u3001Apache\u306e\u5b50\u30d7\u30ed\u30bb\u30b9\u751f\u6210\u306b\u306fPrefork\u3068\u304bWorker\u3068\u304b\u3042\u3063\uff08ry<\/p>\n<p>\u3068\u3044\u3046\u4e8b\u306a\u306e\u3067\u3059\u3002<\/p>\n<p>\u9577\u304f\u306a\u308b\u306e\u3067\u3001\u305d\u306e\u8fba\u306f\u30ab\u30c3\u30c8\u3060\u3002<br \/>\nfork()\u3092\u521d\u3081\u3066\u4f7f\u3063\u3066\u898b\u305f\u306e\u3067\u3001\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u307f\u305f\u3093\u3060\u3051\u3069\u3001\u304a\u304b\u3057\u306a\u7d50\u679c\u306b\u306a\u3063\u305f\u3002<\/p>\n<p>\u305d\u30fc\u3059<\/p>\n<pre>\u00a0 1 #include &lt;stdio.h&gt;\r\n\u00a0 2 #include &lt;sys\/types.h&gt;\r\n\u00a0 3 #include &lt;unistd.h&gt;\r\n\u00a0 4 #include &lt;sys\/wait.h&gt;\r\n\u00a0 5\r\n\u00a0 6 int main(void)\r\n\u00a0 7 {\r\n\u00a0 8\u00a0\u00a0\u00a0\u00a0 pid_t result_pid;\r\n\u00a0 9\r\n\u00a010\u00a0\u00a0\u00a0\u00a0 if(fork() == 0){\r\n\u00a011\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"Hello World child\\n\u30d7\u30ed\u30bb\u30b9\u306f%d\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f%d\\n\", getpid(), getppid());\r\n\u00a012\u00a0\u00a0\u00a0\u00a0 }else{\r\n\u00a013\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"Hello World parent\\n\u30d7\u30ed\u30bb\u30b9\u306f%d\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f%d\\n\", getpid(), getppid());\r\n\u00a014\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a015\r\n\u00a016\u00a0\u00a0\u00a0\u00a0 return 0;\r\n\u00a017 }<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<pre># .\/a.out\r\nHello World parent\r\n\u30d7\u30ed\u30bb\u30b9\u306f3088\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f2365\r\n[root@localhost program]# Hello World child\r\n\u30d7\u30ed\u30bb\u30b9\u306f3089\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f1<\/pre>\n<p><span style=\"font-size: x-large;\">\u306a\u3093\u3067\u3084\uff01<\/span>\u898b\u305f\u901a\u308a\u3067\u3001\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u89aa\u30d7\u30ed\u30bb\u30b9\u304c1\u306b\u306a\u308b\u3002<\/p>\n<p>\u30d7\u30ed\u30f3\u30d7\u30c8\u3082\u5e30\u3063\u3066\u308b\u3057\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u53cd\u6297\u671f\u306a\u306e\u304b\u3057\u3089\u3002<br \/>\n\u3044\u3084\u3001\u305d\u3046\u3044\u3046\u554f\u984c\u3067\u306f\u306a\u3044\u304c\u3001\u3068\u306b\u304b\u304f\u304a\u304b\u3057\u3044\u3002<\/p>\n<p>\u88dc\u8db3\u3060\u3051\u3069\u30012365\u306f\u30b7\u30a7\u30eb\u306e\u30d7\u30ed\u30bb\u30b9\u3002<\/p>\n<pre># ps u | grep 2365\r\nroot\u00a0\u00a0\u00a0\u00a0\u00a0 2365\u00a0 0.0\u00a0 0.1 108300\u00a0 1988 pts\/0\u00a0\u00a0\u00a0 Ss\u00a0\u00a0 05:33\u00a0\u00a0 0:00 -bash<\/pre>\n<p>&nbsp;<\/p>\n<p>\u81ea\u529b\u3067\u306f\u89e3\u6c7a\u3067\u304d\u306a\u3055\u305d\u3046\u306a\u3093\u3067\u3001<span style=\"font-size: large;\">\u30b0\u30b0\u3063\u3068\u30b0\u30b0\u3063\u3066<\/span>\u307f\u305f\u3068\u3053\u308d\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u304c\u5148\u306b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3089\u3057\u3044\u3002\u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u5e30\u3063\u3066\u304d\u3066\u3044\u308b\u306e\u3082\u305d\u308c\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u3002<\/p>\n<p>\u306a\u308b\u307b\u3069\u306a\u3002\u53c2\u8003\u30b5\u30a4\u30c8\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3061\u3087\u3068\u501f\u308a\u3066\u4fee\u6b63\u3057\u3066\u307f\u305f\u3002<\/p>\n<p>\u305d\u30fc\u3059<\/p>\n<pre># cat hello.c\r\n#include &lt;stdio.h&gt;\r\n#include &lt;sys\/types.h&gt;\r\n#include &lt;unistd.h&gt;\r\n#include &lt;sys\/wait.h&gt;\r\n\r\nint main(void)\r\n{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pid_t result_pid;\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(fork() == 0){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"Hello World child\\n\u30d7\u30ed\u30bb\u30b9\u306f%d\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f%d\\n\", getpid(), getppid());\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"Hello World parent\\n\u30d7\u30ed\u30bb\u30b9\u306f%d\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f%d\\n\", getpid(), getppid());\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int status;\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* waitpid \u30d7\u30ed\u30bb\u30b9\u306e\u72b6\u614b\u5909\u5316\u3092\u5f85\u3064\u95a2\u6570\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 WUNTRACED \u5b50\u30d7\u30ed\u30bb\u30b9\u304c\u505c\u6b62\u3057\u305f\u5834\u5408\u306b\u3082\u5fa9\u5e30\u3059\u308b*\/\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 waitpid(result_pid,&amp;status,WUNTRACED);\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* WIFEXITED(status)\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5b50\u30d7\u30ed\u30bb\u30b9\u304c\u6b63\u5e38\u306b\u7d42\u4e86\u3057\u305f\u5834\u5408\u306b\u771f\u3092\u8fd4\u3059\u3002 *\/\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(WIFEXITED(status)){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 fprintf(stdout,\"\u7d42\u4e86\u30b9\u30c6\u30fc\u30bf\u30b9\u306f %d\\n\",WEXITSTATUS(status));\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 fprintf(stdout,\"\u30a8\u30e9\u30fc\\n\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<pre># .\/a.out\r\nHello World parent\r\n\u30d7\u30ed\u30bb\u30b9\u306f3100\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f2365\r\nHello World child\r\n\u30d7\u30ed\u30bb\u30b9\u306f3101\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u306f3100\r\n\u7d42\u4e86\u30b9\u30c6\u30fc\u30bf\u30b9\u306f 0<\/pre>\n<p>\u304a\u304a\u3001\u3046\u307e\u304f\u3046\u3054\u3044\u3066\u304f\u308c\u305f\u3002<\/p>\n<p>\u53c2\u8003\u30b5\u30a4\u30c8\u3067\u306ffork()\u3060\u3051\u306e\u6642\u3082\u3061\u3083\u3093\u3068\u52d5\u3044\u3066\u3044\u3066\u3001sleep()\u3057\u305f\u3068\u304d\u306b\u3053\u306e\u73fe\u8c61\u304c\u8d77\u304d\u3066\u3044\u305f\u3088\u3046\u3060\u3051\u3069\u3001\u3053\u3061\u3089\u306e\u74b0\u5883\u3067\u306ffork()\u3060\u3051\u3067\u3082\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u304c\u5148\u306b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u305f\u3088\u3046\u3060\u3002<\/p>\n<p>\u3068\u3044\u3046\u4e8b\u306f\u9006\u306b\u5229\u7528\u3059\u308c\u3070init\u3067\u52d5\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u308c\u308b\u306e\u304b\u306d\u3002<\/p>\n<p>\u3046\u30fc\u3093\u3002\u307e\u3060\u7406\u89e3\u304c\u8db3\u308a\u3066\u306a\u3044\u306a\u3042\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u53c2\u8003\u30b5\u30a4\u30c8<\/p>\n<p>\u30d5\u30a1\u30a4\u30a2\u30fc\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<br \/>\n<a href=\"http:\/\/www.fireproject.jp\/feature\/c-language\/process\/fork-wait.html\" target=\"_blank\">fork\u3068wait\u3068\u30be\u30f3\u30d3\u30d7\u30ed\u30bb\u30b9<\/a><\/p>\n<p>JM Projent<br \/>\n<a href=\"http:\/\/linuxjm.sourceforge.jp\/html\/LDP_man-pages\/man2\/wait.2.html\" target=\"_blank\">Man page of WAIT<\/a><\/p>\n<p>&nbsp;<\/p>\n<div class='wp_social_bookmarking_light'>        <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"https:\/\/www.vincentina.net\/?p=4073\" data-text=\"\u305f\u3089\u3053\u9c48\u306e\u5b50\u3001\u3053\u306e\u5b50\u3069\u3053\u306e\u5b50\" data-via=\"TakekenTw\" data-lang=\"ja\">Tweet<\/a><\/div><\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>\u69cb\u9020\u4f53\u304c\u5206\u304b\u3089\u306a\u304f\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u9032\u3093\u3067\u306a\u304b\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u3082\u3046\u3044\u3044\u3084\uff5e\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3084\u308a\u3060\u3057\u3066\u307f\u305f\u3089\u3001\u306a\u308b\u307b\u3069\uff01\u3068\u3044\u3046\u611f\u3058\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u3055\u3055\u3063\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u3084\u3063\u3066\u3057\u307e\u3063\u3066\u3066\u3082\u826f\u304b\u3063\u305f\u304b &hellip; <a href=\"https:\/\/www.vincentina.net\/?p=4073\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;\u305f\u3089\u3053\u9c48\u306e\u5b50\u3001\u3053\u306e\u5b50\u3069\u3053\u306e\u5b50&#8221; 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