{"id":77122,"date":"2024-03-20T18:02:15","date_gmt":"2024-03-20T09:02:15","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/c-%e3%81%ae-iocp-%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f%e3%82%bd%e3%82%b1%e3%83%83%e3%83%88%e9%80%9a%e4%bf%a1%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95\/"},"modified":"2025-08-11T19:58:04","modified_gmt":"2025-08-11T10:58:04","slug":"c-%e3%81%ae-iocp-%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f%e3%82%bd%e3%82%b1%e3%83%83%e3%83%88%e9%80%9a%e4%bf%a1%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c-%e3%81%ae-iocp-%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f%e3%82%bd%e3%82%b1%e3%83%83%e3%83%88%e9%80%9a%e4%bf%a1%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95\/","title":{"rendered":"C++ \u306e IOCP \u3092\u4f7f\u7528\u3057\u305f\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u65b9\u6cd5"},"content":{"rendered":"<p>\u975e\u540c\u671f I\/O \u3092\u5b9f\u88c5\u3059\u308b Socket \u901a\u4fe1\u3092 C++ \u3067\u5b9f\u88c5\u3059\u308b\u624b\u9806\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>IOCP\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>HANDLE hIOCP = <span class=\"hljs-built_in\">CreateIoCompletionPort<\/span>(INVALID_HANDLE_VALUE, <span class=\"hljs-literal\">NULL<\/span>, <span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">0<\/span>);\r\n<\/code><\/pre>\n<ol>\n<li>IOCP\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30bd\u30b1\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u3066\u30d0\u30a4\u30f3\u30c9\u3059\u308b\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>SOCKET sock = <span class=\"hljs-built_in\">socket<\/span>(AF_INET, SOCK_STREAM, <span class=\"hljs-number\">0<\/span>);\r\n<span class=\"hljs-built_in\">bind<\/span>(sock, (SOCKADDR*)&amp;addr, <span class=\"hljs-built_in\">sizeof<\/span>(addr));\r\n<span class=\"hljs-built_in\">CreateIoCompletionPort<\/span>((HANDLE)sock, hIOCP, (ULONG_PTR)sock, <span class=\"hljs-number\">0<\/span>);\r\n<\/code><\/pre>\n<ol>\n<li>WSARecv \u3042\u308b\u3044\u306f WSASend \u95a2\u6570\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u306e\u9001\u53d7\u4fe1\u3092\u884c\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>WSABUF wsaBuf;\r\nwsaBuf.buf = <span class=\"hljs-comment\">\/\/ \u7f13\u51b2\u533a\u6307\u9488<\/span>\r\nwsaBuf.len = <span class=\"hljs-comment\">\/\/ \u7f13\u51b2\u533a\u957f\u5ea6<\/span>\r\n\r\nDWORD bytesTransferred = <span class=\"hljs-number\">0<\/span>;\r\nDWORD flags = <span class=\"hljs-number\">0<\/span>;\r\nOVERLAPPED* pOverlapped = <span class=\"hljs-literal\">nullptr<\/span>;\r\n\r\n<span class=\"hljs-built_in\">WSARecv<\/span>(sock, &amp;wsaBuf, <span class=\"hljs-number\">1<\/span>, &amp;bytesTransferred, &amp;flags, pOverlapped, <span class=\"hljs-literal\">nullptr<\/span>);\r\n<\/code><\/pre>\n<ol>\n<li>\u5b8c\u4e86\u30d1\u30b1\u30c3\u30c8\u306e\u53d7\u4fe1\u306b1\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-function\">DWORD WINAPI <span class=\"hljs-title\">WorkerThread<\/span><span class=\"hljs-params\">(LPVOID lpParam)<\/span> <\/span>{\r\n    <span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-literal\">true<\/span>) {\r\n        DWORD bytesTransferred = <span class=\"hljs-number\">0<\/span>;\r\n        ULONG_PTR completionKey = <span class=\"hljs-number\">0<\/span>;\r\n        LPOVERLAPPED lpOverlapped = <span class=\"hljs-literal\">nullptr<\/span>;\r\n\r\n        <span class=\"hljs-built_in\">GetQueuedCompletionStatus<\/span>(hIOCP, &amp;bytesTransferred, &amp;completionKey, &amp;lpOverlapped, INFINITE);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e<\/span>\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u91cd\u65b0\u6295\u9012\u63a5\u6536\u8bf7\u6c42<\/span>\r\n        <span class=\"hljs-built_in\">WSARecv<\/span>(sock, &amp;wsaBuf, <span class=\"hljs-number\">1<\/span>, &amp;bytesTransferred, &amp;flags, pOverlapped, <span class=\"hljs-literal\">nullptr<\/span>);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>IOCP\u306e\u5b8c\u4e86\u30d1\u30b1\u30c3\u30c8\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u8907\u6570\u306e\u30ef\u30fc\u30ab\u30fc\u30fb\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; numThreads; ++i) {\r\n    HANDLE hThread = <span class=\"hljs-built_in\">CreateThread<\/span>(<span class=\"hljs-literal\">NULL<\/span>, <span class=\"hljs-number\">0<\/span>, WorkerThread, <span class=\"hljs-literal\">NULL<\/span>, <span class=\"hljs-number\">0<\/span>, <span class=\"hljs-literal\">NULL<\/span>);\r\n    <span class=\"hljs-built_in\">CloseHandle<\/span>(hThread);\r\n}\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3001IOCP\u3092\u4f7f\u3063\u3066Socket\u901a\u4fe1\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u306f\u3042\u304f\u307e\u3067\u57fa\u672c\u7684\u306a\u3082\u306e\u3067\u3001\u5b9f\u969b\u306e\u5229\u7528\u3067\u306f\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3084\u62e1\u5f35\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u306b\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u975e\u540c\u671f I\/O \u3092\u5b9f\u88c5\u3059\u308b Socket \u901a\u4fe1\u3092 C++ \u3067\u5b9f\u88c5\u3059\u308b\u624b\u9806\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 IOCP\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 HANDLE hIOCP = CreateIoCompletionPort(INVALID_ [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-77122","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C++ \u306e IOCP \u3092\u4f7f\u7528\u3057\u305f\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"C++ \u306e IOCP \u3092\u4f7f\u7528\u3057\u305f\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/c-\u306e-iocp-\u3092\u4f7f\u7528\u3057\u305f\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++ \u306e IOCP \u3092\u4f7f\u7528\u3057\u305f\u30bd\u30b1\u30c3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"C++ \u306e 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