{"description":"macOS\uff08\u65e7Mac OS X\uff09\u3067\u306f POSIX\u7121\u540d(unnamed)\u30bb\u30de\u30d5\u30a9 \u3092\u610f\u56f3\u7684\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3044\u3002 \u7121\u540d\u30bb\u30de\u30d5\u30a9\u751f\u6210sem_init\u3084\u7834\u58casem_destroy\u95a2\u6570\u547c\u3073\u51fa\u3057\u306ferrno=ENOSYS(function not supported)\uff0f\u623b\u308a\u5024-1\u3067\u5e38\u306b\u5931\u6557\u3059\u308b\u3002\uff08\u304a\u307e\u3051\uff1asem_getvalue\u95a2\u6570\u3082\u975e\u30b5\u30dd\u30fc\u30c8\uff09\u540d\u524d\u7121\u3057\u30bb\u30de\u30d5\u30a9\u306f DispatchSemaphore \u3067\u4ee3\u66ff\u53ef\u80fd\u3002\u4e00\u822c\u7684\u306b\u306fObjective-C\u3084Swift\u304b\u3089\u547c\u3073\u51fa\u3059 GCD(Grand Central Dispatch)\u30e9\u30f3\u30bf\u30a4\u30e0 \u306e\u4e00\u90e8\u3060\u304c\u3001C\u8a00\u8a9eAPI\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u308b\u305f\u3081\u30cd\u30a4\u30c6\u30a3\u30d6C/C++\u30b3\u30fc\u30c9\u304b\u3089\u2026","blog_title":"yohhoy\u306e\u65e5\u8a18","blog_url":"https://yohhoy.hatenadiary.jp/","height":"190","provider_name":"Hatena Blog","image_url":null,"author_url":"https://blog.hatena.ne.jp/yohhoy/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohhoy.hatenadiary.jp%2Fentry%2F20200503%2Fp1\" title=\"macOS\u306fPOSIX\u7121\u540d\u30bb\u30de\u30d5\u30a9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3044 - yohhoy\u306e\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>","categories":["Mac","POSIX"],"provider_url":"https://hatena.blog","author_name":"yohhoy","url":"https://yohhoy.hatenadiary.jp/entry/20200503/p1","published":"2020-05-03 00:00:00","version":"1.0","title":"macOS\u306fPOSIX\u7121\u540d\u30bb\u30de\u30d5\u30a9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3044","type":"rich"}