{"id":4337,"date":"2021-04-15T01:11:48","date_gmt":"2021-04-14T16:11:48","guid":{"rendered":"https:\/\/okamurax.com\/?p=4337"},"modified":"2022-03-04T12:46:52","modified_gmt":"2022-03-04T03:46:52","slug":"c-mutex-%e3%83%a1%e3%83%a2","status":"publish","type":"post","link":"https:\/\/appbay.org\/?p=4337","title":{"rendered":"C# Mutex \u30e1\u30e2"},"content":{"rendered":"<pre class=\"lang:c# decode:true \">using System;\r\nusing System.Threading.Tasks;\r\nusing System.Windows.Forms;\r\n\r\nnamespace WindowsFormsApp1\r\n{\r\n    internal static class Program\r\n    {\r\n        [STAThread]\r\n        static void Main()\r\n        {\r\n            string mutexName = System.Diagnostics.Process.GetCurrentProcess().MainModule.ModuleName; \/\/ \u56fa\u6709\u306e\u6587\u5b57\u5217\u306b\u3059\u308b\r\n\r\n            \/\/ Mutex\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5f15\u6570\r\n\r\n            \/\/ \u7b2c\u4e00\u5f15\u6570\r\n            \/\/ \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u306b\u6240\u6709\u6a29\u3092\u4e0e\u3048\u308b\u304b\u3069\u3046\u304b (True=\u4e0e\u3048\u308b, False=\u4e0e\u3048\u306a\u3044)\r\n            \/\/ True\u306e\u5834\u5408\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u6642\u306b\u30b9\u30ec\u30c3\u30c9\u304c\u6240\u6709\u6a29\u3092\u53d6\u5f97\u3059\u308b\u3002\r\n\r\n            \/\/ WaitOne()\u3082\u540c\u3058\u304f\u6240\u6709\u6a29\u3092\u53d6\u5f97\u3059\u308b\u304c\u3001\r\n            \/\/ \u53d6\u5f97\u3067\u304d\u308b\u307e\u3067\u73fe\u5728\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5f85\u6a5f\u72b6\u614b\u3068\u306a\u308b\u3002\r\n            \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf(\u7b2c\u4e00\u5f15\u6570)\u3067\u6240\u6709\u6a29\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u306f\u5f85\u6a5f\u3057\u306a\u3044\u3002\r\n\r\n            \/\/ \u7b2c\u4e8c\u5f15\u6570\r\n            \/\/ \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u540d\u524d\r\n            \/\/ \u540d\u524d\u4ed8\u304d\u306b\u3059\u308b\u3068OS\u5168\u4f53\u3067\u6392\u4ed6\u5236\u5fa1\u3067\u304d\u308b\u3002\r\n            \/\/ \u540d\u524d\u7121\u3057\u306b\u3059\u308b\u3068\u30ed\u30fc\u30ab\u30eb\u306e\u6392\u4ed6\u5236\u5fa1\u306e\u307f\u3002\r\n\r\n            \/\/ \u7b2c\u4e09\u5f15\u6570\r\n            \/\/ Mutex\u3092\u4f5c\u6210\u3057\u305f\u304b\u3069\u3046\u304b\u306e\u30d5\u30e9\u30b0\u3002(\u521d\u671f\u6240\u6709\u6a29\u3068\u306f\u95a2\u4fc2\u306a\u3044)\r\n            \/\/ \u3059\u3067\u306b\u540c\u540d\u306eMutex\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u4f5c\u6210\u3067\u304d\u306a\u3044\u306e\u3067False\u3068\u306a\u308b\u3002\r\n\r\n            \/\/ ReleaseMutex()\u306f\u6240\u6709\u6a29\u3092\u89e3\u653e\u72b6\u614b=\u30b7\u30b0\u30ca\u30eb\u72b6\u614b(signaled)\u306b\u306a\u308b\u3002\r\n            \/\/ ReleaseMutex()\u306fWaitOne()\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u3057\u304b\u547c\u3079\u306a\u3044\u3002 \r\n            \/\/ \u6240\u6709\u6a29\u3092\u89e3\u653e\u305b\u305a\u306b\u7d42\u4e86\u3057\u305f\u5834\u5408\u306f\u3001\u653e\u68c4\u72b6\u614b(abandoned)\u3068\u306a\u308a\u3001\r\n            \/\/ \u4ed6\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u306eWaitOne()\u3059\u308b\u3068Exception\u3068\u306a\u308b\u3002\r\n            \/\/ ReleaseMutex()\u306f\u547c\u3073\u51fa\u3057\u3068\u540c\u3058\u56de\u6570\u5fc5\u8981\r\n\r\n            if (false)\r\n            {\r\n                var m = new System.Threading.Mutex(false, mutexName);\r\n                \/\/ \u521d\u671f\u6240\u6709\u6a29\uff1a\u53d6\u5f97\u3057\u306a\u3044\u3002\r\n\r\n                bool f = m.WaitOne(0, false);\r\n                \/\/ WaitOne()\u3067\u6240\u6709\u6a29\u306e\u53d6\u5f97\u3092\u8a66\u307f\u308b\u3002\r\n\r\n                MessageBox.Show(f.ToString());\r\n                \/\/ \u6700\u521d\u306b\u8d77\u52d5\u3057\u305f\u3068\u304d\u306fTrue\r\n                \/\/ MessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3068\u304d\u3001\u3082\u3046\uff11\u3064\u8d77\u52d5\u3059\u308b\u3068False\u3002\r\n            }\r\n\r\n            if (false)\r\n            {\r\n                var m = new System.Threading.Mutex(false);\r\n                \/\/ \u521d\u671f\u6240\u6709\u6a29\uff1a\u53d6\u5f97\u3057\u306a\u3044\u3002\r\n                \/\/ \u540d\u524d\u4ed8\u304d\u3067\u306f\u306a\u3044\r\n\r\n                bool f = m.WaitOne(0, false);\r\n                \/\/ WaitOne()\u3067\u6240\u6709\u6a29\u306e\u53d6\u5f97\u3092\u8a66\u307f\u308b\u3002\r\n\r\n                MessageBox.Show(f.ToString());\r\n                \/\/ \u6700\u521d\u306b\u8d77\u52d5\u3057\u305f\u3068\u304d\u306fTrue\r\n                \/\/ MessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3068\u304d\u3001\u3082\u3046\uff11\u3064\u8d77\u52d5\u3057\u3066\u3082True\r\n            }\r\n\r\n            \/\/ --------------------------------------------------------\r\n            \/\/ \u7b2c\u4e09\u5f15\u6570\u306e\u5b9f\u9a13\r\n\r\n            if (false)\r\n            {\r\n                var m = new System.Threading.Mutex(true, mutexName, out bool initialOwnership);\r\n                \/\/ \u521d\u671f\u6240\u6709\u6a29\uff1a\u53d6\u5f97\u3002\r\n\r\n                MessageBox.Show(initialOwnership.ToString());\r\n                \/\/ \u6700\u521d\u306b\u8d77\u52d5\u3057\u305f\u3068\u304d\u306fTrue\r\n                \/\/ MessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3068\u304d\u3001\u3082\u3046\uff11\u3064\u8d77\u52d5\u3059\u308b\u3068False\u3002\r\n            }\r\n\r\n            if (false)\r\n            {\r\n                var m = new System.Threading.Mutex(false, mutexName, out bool initialOwnership);\r\n                \/\/ \u521d\u671f\u6240\u6709\u6a29\uff1a\u53d6\u5f97\u3057\u306a\u3044\u3002\r\n\r\n                MessageBox.Show(initialOwnership.ToString());\r\n                \/\/ \u6700\u521d\u306b\u8d77\u52d5\u3057\u305f\u3068\u304d\u306fTrue\u3068\u306a\u308b\u3002\r\n                \/\/ MessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u3068\u304d\u3001\u3082\u3046\uff11\u3064\u8d77\u52d5\u3059\u308b\u3068False\u3002\r\n\r\n                \/\/ ## \u6ce8\u610f ##\r\n                \/\/ \u6700\u521d\u306eMessageBox\u3067\u306f\u3001\u521d\u671f\u6240\u6709\u6a29\u3092\u53d6\u5f97\u3057\u3066\u3044\u306a\u3044\u304cTrue\u3068\u306a\u308b\u306e\u3067\u3001\r\n                \/\/ \u3053\u3053\u306f\u4f5c\u6210\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u5224\u65ad\u3057\u3066\u3044\u308b\u6a21\u69d8\u3002\r\n            }\r\n\r\n            \/\/ --------------------------------------------------------\r\n            \/\/ Close,Dispose()\u5f8c\u306b\u5225\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u540c\u540d\u306eMutex\u3092\u4f5c\u6210(\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf)\u3002\r\n\r\n            if (false)\r\n            {\r\n                var m1 = new System.Threading.Mutex(true, mutexName,out bool f1);\r\n                MessageBox.Show(f1.ToString()); \/\/ true \r\n                Task.Run(() =&gt; {\r\n                    var m2 = new System.Threading.Mutex(true, mutexName, out bool f2);\r\n                    MessageBox.Show(f2.ToString()); \/\/ false\r\n                    \/\/ Close()\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u4f5c\u6210\u3067\u304d\u306a\u3044\r\n                });\r\n                MessageBox.Show(\"\"); \/\/ \u3053\u308c\u304c\u306a\u3044\u3068Task\u3092\u5b9f\u884c\u3057\u305f\u307e\u307e\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\r\n            }\r\n\r\n            if (false)\r\n            {\r\n                var m1 = new System.Threading.Mutex(true, mutexName, out bool f1);\r\n                MessageBox.Show(f1.ToString()); \/\/ true\r\n                m1.Close(); \/\/ \u3053\u3053\u304cDispose()\u3067\u3082\u540c\u3058\r\n                Task.Run(() =&gt; {\r\n                    var m2 = new System.Threading.Mutex(true, mutexName, out bool f2);\r\n                    MessageBox.Show(f2.ToString()); \/\/ true \r\n                    \/\/ Close()\u3057\u3066\u3044\u308b\u306e\u3067\u4f5c\u6210\u3067\u304d\u308b\u3002\r\n                });\r\n                MessageBox.Show(\"\"); \/\/ \u3053\u308c\u304c\u306a\u3044\u3068Task\u3092\u5b9f\u884c\u3057\u305f\u307e\u307e\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\r\n            }\r\n\r\n            \/\/ --------------------------------------------------------\r\n            \/\/ \u4f5c\u6210\u3057\u305fMutex\u3092\u5225\u30b9\u30ec\u30c3\u30c9\u3067\u3082\u3046\u4e00\u5ea6\u3064\u304b\u3080\u3002\r\n\r\n            if (false)\r\n            {\r\n                var m = new System.Threading.Mutex(true, mutexName, out bool f);\r\n                MessageBox.Show(f.ToString()); \/\/ true\r\n\r\n                \/\/ \u3053\u306e\u90e8\u5206\u3067\u3001\r\n                \/\/ \u4f55\u3082\u8a18\u8f09\u3057\u306a\u3044\u3068\u3001\u5f85\u6a5f\u3057\u3066\u3057\u307e\u3044Task\u5185\u306eMessageBox\u306f\u8868\u793a\u3055\u308c\u306a\u3044\r\n\r\n                \/\/ m.ReleaseMutex();\r\n                \/\/ \u3060\u3051\u3060\u3068\u4e0b\u8a18Task\u306e\u4e2d\u3067\u518d\u5ea6\u53d6\u5f97(true)\u3067\u304d\u308b\u3002\r\n\r\n                \/\/ m.ReleaseMutex();\r\n                \/\/ m.Close();\r\n                \/\/ \u30682\u3064\u547c\u3093\u3060\u5834\u5408\u3001\r\n                \/\/ m.Close(); \r\n                \/\/ \u30681\u3064\u547c\u3093\u3060\u5834\u5408\r\n                \/\/ \u306e\u3069\u3061\u3089\u3082\u53d6\u5f97\u3067\u304d\u306a\u3044\u3002(ObjectDisposedException)\r\n\r\n                Task.Run(() =&gt; {\r\n                    try\r\n                    {\r\n                        MessageBox.Show(m.WaitOne().ToString());\r\n                    }\r\n                    catch(Exception e)\r\n                    {\r\n                        MessageBox.Show(e.ToString());\r\n                    }\r\n                });\r\n                MessageBox.Show(\"\"); \/\/ \u3053\u308c\u304c\u306a\u3044\u3068Task\u3092\u5b9f\u884c\u3057\u305f\u307e\u307e\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\r\n            }\r\n\r\n            \/\/ --------------------------------------------------------\r\n            \/\/ WaitOne()\u72b6\u614b\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u7834\u68c4\r\n            \/\/ AbandonedMutexException\r\n\r\n            if (false)\r\n            {\r\n                try\r\n                {\r\n                    var m = new System.Threading.Mutex(false, mutexName);\r\n                    m.WaitOne();\r\n                    \/\/ \u3053\u3053\u306bClose()\u306a\u3069\u3042\u308b\u3068\u767a\u751f\u3057\u306a\u3044\r\n                }\r\n                catch (Exception e)\r\n                {\r\n                    MessageBox.Show(e.ToString());\r\n                }\r\n                \r\n                MessageBox.Show(\"\");\r\n\r\n                \/\/ 1\u3064\u76ee\u3092\u8d77\u52d5\u3057MessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u72b6\u614b\u3067\u30012\u3064\u76ee\u3092\u8d77\u52d5\u3059\u308b\u3068\u3001\r\n                \/\/ 1\u3064\u76ee\u306eMessageBox\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u9593\u306f2\u3064\u76ee\u306eMessageBox\u306f\u8868\u793a\u3055\u308c\u305a\u3001\r\n                \/\/ 1\u3064\u76ee\u306eMessageBox\u3092\u9589\u3058\u308b\u3068\u30012\u3064\u76ee\u306e\u65b9\u304cAbandonedMutexException\u306b\u306a\u308b\u3002\r\n                \/\/ 2\u3064\u76ee\u304cWaitOne()\u3057\u3066\u3044\u308b\u72b6\u614b\u3067\u30011\u3064\u76ee\u304cReleaseMutex()\u305b\u305a\u7d42\u4e86\u3057\u305f\u305f\u3081\u3002\r\n\r\n                \/\/ WaitOne()\u306e\u3042\u3068\u306bClose()\u3084ReleaseMutex()\u304c\u3042\u308c\u3070\u3001AbandonedMutexException\u306b\u306f\u306a\u3089\u306a\u3044\r\n\r\n                \/\/ ## \u6ce8\u610f ##\r\n                \/\/ m.ReleaseMutex();\r\n                \/\/ m.Close();\r\n                \/\/ \u30682\u3064\u547c\u3093\u3060\u5834\u5408\u3001\r\n                \/\/ m.Close(); \r\n                \/\/ \u30681\u3064\u547c\u3093\u3060\u5834\u5408\r\n                \/\/ \u3069\u3061\u3089\u3082\u3001AbandonedMutexException\u306f\u767a\u751f\u3057\u306a\u3044\r\n            }\r\n\r\n            \/\/ --------------------------------------------------------\r\n            \/\/ \u5225\u30b9\u30ec\u30c3\u30c9\u304b\u3089ReleaseMutex()\r\n            \/\/ ApplicationException\r\n\r\n            if (true)\r\n            {\r\n                var m = new System.Threading.Mutex(true, mutexName);\r\n                Task.Run(() =&gt; {\r\n\r\n                    try\r\n                    {\r\n                        m.ReleaseMutex();\r\n                        \/\/ \u5225\u30b9\u30ec\u30c3\u30c9\u4ee5\u5916\u304b\u3089ReleaseMutex()\u3092\u547c\u3093\u3067\u3044\u308b\u306e\u3067ApplicationException\u304c\u767a\u751f\r\n                        \/\/ Close()\u306e\u5834\u5408\u767a\u751f\u3057\u306a\u3044\r\n                    }\r\n                    catch (Exception e)\r\n                    {\r\n                        MessageBox.Show(e.ToString());\r\n                    }\r\n                });\r\n\r\n                MessageBox.Show(\"\"); \/\/ \u3053\u308c\u304c\u306a\u3044\u3068Task\u3092\u5b9f\u884c\u3057\u305f\u307e\u307e\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>using System; using System.Threading.Tasks; using System.Windows.Forms; namespace WindowsFormsApp1 { internal  &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/appbay.org\/?p=4337\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;C# Mutex \u30e1\u30e2&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9],"class_list":["post-4337","post","type-post","status-publish","format-standard","hentry","category-1","tag-c-net"],"_links":{"self":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/4337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4337"}],"version-history":[{"count":6,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/4337\/revisions"}],"predecessor-version":[{"id":4845,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/4337\/revisions\/4845"}],"wp:attachment":[{"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}