{"published":"2015-02-28 20:59:03","title":" \u300cC\u300d\u30d5\u30a1\u30a4\u30eb\u306e\u30ed\u30c3\u30af\u3092\u53d6\u5f97\u3057\u3066\u307f\u308b","version":"1.0","provider_name":"Hatena Blog","image_url":null,"url":"https://a4dosanddos.hatenablog.com/entry/2015/02/28/205903","description":"C \u3067\u30d5\u30a1\u30a4\u30eb\u306e\u30ed\u30c3\u30af\u3092\u53d6\u5f97\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u66f8\u3044\u3066\u307f\u305f\u306e\u3067\u3001\u30e1\u30e2\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u30ed\u30c3\u30af\u306f flock(int fd, int operation) \u95a2\u6570\u3067\u53d6\u5f97\u3067\u304d\u308b\u307f\u305f\u3044\u3067\u3059\u3002 fd \u306b\u306f open \u95a2\u6570\u3067\u53d6\u5f97\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u3092\u3001operation \u306f\u30ed\u30c3\u30af\u306e\u7a2e\u985e (*1) \u3092\u6307\u5b9a\u3059\u308b\u3002Man page of FLOCK(*1) LOCK_SH \uff1a \u5171\u6709\u30ed\u30c3\u30af LOCK_EX \uff1a \u6392\u4ed6\u30ed\u30c3\u30af LOCK_UN \uff1a \u30ed\u30c3\u30af\u89e3\u9664 \u4ee5\u4e0b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002 \u203b \u3061\u3083\u3093\u3068\u30ed\u30c3\u30af\u304c\u52b9\u3044\u3066\u308b\u304b\u3069\u3046\u304b\u308f\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u3001flock \u95a2\u6570\u5b9f\u884c\u524d\u5f8c\u3067 printf \u95a2\u6570\u306e\u5b9f\u884c\u3001\u30ed\u30c3\u30af\u89e3\u9664\u524d\u306b getchar \u2026","provider_url":"https://hatena.blog","blog_url":"https://a4dosanddos.hatenablog.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa4dosanddos.hatenablog.com%2Fentry%2F2015%2F02%2F28%2F205903\" title=\" \u300cC\u300d\u30d5\u30a1\u30a4\u30eb\u306e\u30ed\u30c3\u30af\u3092\u53d6\u5f97\u3057\u3066\u307f\u308b - \u30d7\u30ed\u30b0\u30e9\u30e0\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"a4dosanddos","type":"rich","author_url":"https://blog.hatena.ne.jp/a4dosanddos/","height":"190","blog_title":"\u30d7\u30ed\u30b0\u30e9\u30e0\u65e5\u8a18","categories":["C"]}