{"id":2203,"date":"2025-03-24T08:48:01","date_gmt":"2025-03-23T23:48:01","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2203"},"modified":"2025-03-24T08:48:26","modified_gmt":"2025-03-23T23:48:26","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91c%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%ae%9f%e8%a3%85%e4%be%8b%e4%bb%98%e3%81%8d%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2203","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011C++\u30b9\u30ec\u30c3\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u5b9f\u88c5\u4f8b\u4ed8\u304d\u89e3\u8aac\u30685\u3064\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C++\u30b9\u30ec\u30c3\u30c9 \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30b9\u30ec\u30c3\u30c9\u3068\u306f\u4f55\u304b\uff1a\u76f4\u611f\u7684\u306b\u7406\u89e3\u3059\u308b\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u4ed5\u7d44\u307f<\/a>      <\/li>      <li>        <a href=\"#i-2\">C++11\u3067\u5c0e\u5165\u3055\u308c\u305f\u30b9\u30ec\u30c3\u30c9\u30b5\u30dd\u30fc\u30c8\u306e\u7279\u5fb4\u3068\u6ce8\u610f<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u3068\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">\u5b9f\u8df5\u3067\u4f7f\u3048\u308bC++\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">std::thread\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u305f\u57fa\u672c\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u4f5c\u6210<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u30e9\u30e0\u30c0\u5f0f\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u5b9f\u88c5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u30c7\u30fc\u30bf\u5171\u6709\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">C++\u30b9\u30ec\u30c3\u30c9\u306e\u540c\u671f\u5236\u5fa1\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u305f\u6392\u4ed6\u5236\u5fa1\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u6761\u4ef6\u5909\u6570\u306b\u3088\u308b\u30b9\u30ec\u30c3\u30c9\u9593\u901a\u4fe1\u306e\u5b9f\u73fe<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u5b9f\u88c5\u3068\u6d3b\u7528\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">\u52b9\u7387\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u8a2d\u8a08\u624b\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u30bf\u30b9\u30af\u30ad\u30e5\u30fc\u3092\u4f7f\u3063\u305f\u30b8\u30e7\u30d6\u7ba1\u7406\u306e\u5b9f\u88c5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u624b\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-16\">C++\u30b9\u30ec\u30c3\u30c9\u306e\u30c7\u30d0\u30c3\u30b0\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-18\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a\u3068\u89e3\u6c7a<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u958b\u767a\u8005\u5411\u3051\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C++\u30b9\u30ec\u30c3\u30c9 \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30b9\u30ec\u30c3\u30c9\u3068\u306f\u4f55\u304b\uff1a\u76f4\u611f\u7684\u306b\u7406\u89e3\u3059\u308b\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p>\u73fe\u4ee3\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30b9\u30ec\u30c3\u30c9\u306f\u4e26\u884c\u51e6\u7406\u3092\u5b9f\u73fe\u3059\u308b\u57fa\u672c\u7684\u306a\u5b9f\u884c\u5358\u4f4d\u3067\u3059\u3002\u30d7\u30ed\u30bb\u30b9\u306e\u4e2d\u3067\u52d5\u4f5c\u3059\u308b\u8efd\u91cf\u306a\u5b9f\u884c\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u7279\u5fb4\u3092\u6301\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u7a7a\u9593\u306e\u5171\u6709\uff1a\u540c\u3058\u30d7\u30ed\u30bb\u30b9\u5185\u306e\u4ed6\u306e\u30b9\u30ec\u30c3\u30c9\u3068\u30e1\u30e2\u30ea\u3092\u5171\u6709<\/li>\n\n\n\n<li>\u72ec\u7acb\u3057\u305f\u5b9f\u884c\u30d5\u30ed\u30fc\uff1a\u500b\u5225\u306e\u547d\u4ee4\u30dd\u30a4\u30f3\u30bf\u3068\u30b9\u30bf\u30c3\u30af\u3092\u4fdd\u6301<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u30ea\u30bd\u30fc\u30b9\u306e\u52b9\u7387\u7684\u306a\u5229\u7528\uff1a\u30d7\u30ed\u30bb\u30b9\u3088\u308a\u3082\u751f\u6210\u30fb\u5207\u308a\u66ff\u3048\u30b3\u30b9\u30c8\u304c\u4f4e\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u89b3\u70b9\u304b\u3089\u898b\u308b\u3068\u3001\u30b9\u30ec\u30c3\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7269\u7406\u30b3\u30a2\u3067\u306e\u5b9f\u884c\uff1a\u5404\u30b9\u30ec\u30c3\u30c9\u306f\u7269\u7406\u30d7\u30ed\u30bb\u30c3\u30b5\u30b3\u30a2\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\uff1aOS \u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u306b\u3088\u3063\u3066\u5b9f\u884c\u6a29\u304c\u5207\u308a\u66ff\u308f\u308b<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528\uff1aL1\/L2\/L3 \u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5229\u7528\u3057\u305f\u9ad8\u901f\u306a\u5b9f\u884c<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">C++11\u3067\u5c0e\u5165\u3055\u308c\u305f\u30b9\u30ec\u30c3\u30c9\u30b5\u30dd\u30fc\u30c8\u306e\u7279\u5fb4\u3068\u6ce8\u610f<\/h3>\n\n\n\n<p>C++11\u3067\u5c0e\u5165\u3055\u308c\u305f\u6a19\u6e96\u30b9\u30ec\u30c3\u30c9\u30e9\u30a4\u30d6\u30e9\u30ea\uff08<code>&lt;thread&gt;<\/code>\uff09\u306f\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u72ec\u7acb\u306a\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u4e3b\u306a\u7279\u5fb4\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;thread&gt;\n#include &lt;iostream&gt;\n\nvoid worker_function(int n) {\n    std::cout &lt;&lt; \"Worker thread \" &lt;&lt; n &lt;&lt; \" starting\\n\";\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u51e6\u7406\u5185\u5bb9\n    std::cout &lt;&lt; \"Worker thread \" &lt;&lt; n &lt;&lt; \" finished\\n\";\n}\n\nint main() {\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u751f\u6210\n    std::thread worker1(worker_function, 1);  \/\/ \u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u3068\u5f15\u6570\u3092\u6e21\u3057\u3066\u30b9\u30ec\u30c3\u30c9\u4f5c\u6210\n\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u5f85\u3061\n    worker1.join();  \/\/ \u3053\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3064\n\n    return 0;\n}<\/pre>\n\n\n\n<p>\u6ce8\u610f\u3059\u3079\u304d\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b9\u30ec\u30c3\u30c9\u306f\u5fc5\u305a<code>join()<\/code>\u307e\u305f\u306f<code>detach()<\/code>\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u672a\u51e6\u7406\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u3042\u308b\u3068\u3001\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067<code>std::terminate<\/code>\u304c\u547c\u3070\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b9\u30ec\u30c3\u30c9\u64cd\u4f5c\u306f\u4f8b\u5916\u3092\u6295\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n\n\n\n<li>RAII\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u305f\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406\u304c\u5fc5\u8981<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u7af6\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5171\u6709\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u540c\u6642\u30a2\u30af\u30bb\u30b9\u306b\u6ce8\u610f<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u540c\u671f\u6a5f\u69cb\u306e\u4f7f\u7528\u304c\u5fc5\u8981<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u3068\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u9055\u3044\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<p><strong>\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\u306e\u4f8b\nvoid process_data(const std::vector&lt;int&gt;&amp; data) {\n    for (const auto&amp; item : data) {\n        \/\/ \u30c7\u30fc\u30bf\u3092\u9806\u6b21\u51e6\u7406\n        process_item(item);\n    }\n}<\/pre>\n\n\n\n<p><strong>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u4f8b\nvoid parallel_process(const std::vector&lt;int&gt;&amp; data, int thread_count) {\n    std::vector&lt;std::thread&gt; threads;\n    int chunk_size = data.size() \/ thread_count;\n\n    for (int i = 0; i &lt; thread_count; ++i) {\n        int start = i * chunk_size;\n        int end = (i == thread_count - 1) ? data.size() : (i + 1) * chunk_size;\n\n        threads.emplace_back([&amp;data, start, end]() {\n            for (int j = start; j &lt; end; ++j) {\n                process_item(data[j]);\n            }\n        });\n    }\n\n    \/\/ \u5168\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u3064\n    for (auto&amp; thread : threads) {\n        thread.join();\n    }\n}<\/pre>\n\n\n\n<p>\u4e3b\u306a\u9055\u3044\u3068\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u884c\u30e2\u30c7\u30eb<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\uff1a\u9010\u6b21\u5b9f\u884c\u3001\u4e88\u6e2c\u53ef\u80fd\u306a\u5b9f\u884c\u9806\u5e8f<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\uff1a\u4e26\u884c\u5b9f\u884c\u3001\u975e\u6c7a\u5b9a\u7684\u306a\u5b9f\u884c\u9806\u5e8f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\uff1a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5c11\u306a\u3044\u3001\u5358\u4e00\u30b3\u30a2\u306e\u9650\u754c\u3042\u308a<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\uff1a\u4e26\u5217\u51e6\u7406\u306b\u3088\u308b\u9ad8\u901f\u5316\u3001\u540c\u671f\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3042\u308a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u5bb9\u6613\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30b0\u30eb\u30b9\u30ec\u30c3\u30c9\uff1a\u30c7\u30d0\u30c3\u30b0\u304c\u5bb9\u6613\u3001\u52d5\u4f5c\u304c\u4e88\u6e2c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\uff1a\u7af6\u5408\u6761\u4ef6\u3084\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306e\u53ef\u80fd\u6027\u3001\u30c7\u30d0\u30c3\u30b0\u304c\u8907\u96d1<\/li>\n<\/ul>\n\n\n\n<p>\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5b9f\u884c\u30e2\u30c7\u30eb\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u5b9f\u8df5\u3067\u4f7f\u3048\u308bC++\u30b9\u30ec\u30c3\u30c9\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">std::thread\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u305f\u57fa\u672c\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u4f5c\u6210<\/h3>\n\n\n\n<p>std::thread\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u4f5c\u6210\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;thread&gt;\n#include &lt;iostream&gt;\n#include &lt;vector&gt;\n\n\/\/ \u30b9\u30ec\u30c3\u30c9\u95a2\u6570\u306e\u5b9a\u7fa9\nvoid worker_task(int id, std::vector&lt;int&gt;&amp; results) {\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u56fa\u6709\u306e\u51e6\u7406\n    results[id] = id * id;\n    std::cout &lt;&lt; \"Thread \" &lt;&lt; id &lt;&lt; \" completed calculation\\n\";\n}\n\nint main() {\n    const int num_threads = 4;\n    std::vector&lt;int&gt; results(num_threads);\n    std::vector&lt;std::thread&gt; threads;\n\n    \/\/ \u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u3092\u751f\u6210\n    for (int i = 0; i &lt; num_threads; ++i) {\n        threads.emplace_back(worker_task, i, std::ref(results));\n    }\n\n    \/\/ \u5168\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u6a5f\n    for (auto&amp; thread : threads) {\n        thread.join();\n    }\n\n    \/\/ \u7d50\u679c\u306e\u8868\u793a\n    for (int i = 0; i &lt; num_threads; ++i) {\n        std::cout &lt;&lt; \"Result \" &lt;&lt; i &lt;&lt; \": \" &lt;&lt; results[i] &lt;&lt; \"\\n\";\n    }\n\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30e9\u30e0\u30c0\u5f0f\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u53ef\u8aad\u6027\u306e\u9ad8\u3044\u30b9\u30ec\u30c3\u30c9\u5b9f\u88c5\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;thread&gt;\n#include &lt;functional&gt;\n#include &lt;iostream&gt;\n\nclass TaskManager {\nprivate:\n    std::vector&lt;std::thread&gt; threads;\n    std::vector&lt;int&gt; data;\n\npublic:\n    void process_data(const std::vector&lt;int&gt;&amp; input) {\n        data = input;\n        const int chunk_size = data.size() \/ 4;  \/\/ 4\u30b9\u30ec\u30c3\u30c9\u3067\u51e6\u7406\n\n        \/\/ \u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u7528\u3057\u305f\u30b9\u30ec\u30c3\u30c9\u4f5c\u6210\n        for (int i = 0; i &lt; 4; ++i) {\n            threads.emplace_back([this, i, chunk_size]() {\n                const int start = i * chunk_size;\n                const int end = (i == 3) ? data.size() : (i + 1) * chunk_size;\n\n                for (int j = start; j &lt; end; ++j) {\n                    \/\/ \u30c7\u30fc\u30bf\u51e6\u7406\n                    data[j] *= 2;  \/\/ \u4f8b\uff1a\u5404\u8981\u7d20\u30922\u500d\n                }\n            });\n        }\n\n        \/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u5f85\u3061\n        for (auto&amp; thread : threads) {\n            thread.join();\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u30c7\u30fc\u30bf\u5171\u6709\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u30c7\u30fc\u30bf\u5171\u6709\u306f\u614e\u91cd\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u5171\u6709\u306e\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;thread&gt;\n#include &lt;mutex&gt;\n#include &lt;queue&gt;\n#include &lt;condition_variable&gt;\n\ntemplate&lt;typename T&gt;\nclass ThreadSafeQueue {\nprivate:\n    mutable std::mutex mutex;\n    std::queue&lt;T&gt; queue;\n    std::condition_variable cond;\n\npublic:\n    \/\/ \u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\n    void push(T value) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        queue.push(std::move(value));\n        cond.notify_one();  \/\/ \u5f85\u6a5f\u4e2d\u306e\u30b9\u30ec\u30c3\u30c9\u306b\u901a\u77e5\n    }\n\n    \/\/ \u30c7\u30fc\u30bf\u306e\u53d6\u308a\u51fa\u3057\n    bool try_pop(T&amp; value) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        if (queue.empty()) {\n            return false;\n        }\n        value = std::move(queue.front());\n        queue.pop();\n        return true;\n    }\n\n    \/\/ \u30c7\u30fc\u30bf\u304c\u8ffd\u52a0\u3055\u308c\u308b\u307e\u3067\u5f85\u6a5f\u3057\u3066\u53d6\u308a\u51fa\u3057\n    void wait_and_pop(T&amp; value) {\n        std::unique_lock&lt;std::mutex&gt; lock(mutex);\n        cond.wait(lock, [this]{ return !queue.empty(); });\n        value = std::move(queue.front());\n        queue.pop();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid producer_consumer_example() {\n    ThreadSafeQueue&lt;int&gt; queue;\n\n    \/\/ \u751f\u7523\u8005\u30b9\u30ec\u30c3\u30c9\n    std::thread producer([&amp;queue]() {\n        for (int i = 0; i &lt; 10; ++i) {\n            queue.push(i);\n            std::this_thread::sleep_for(std::chrono::milliseconds(100));\n        }\n    });\n\n    \/\/ \u6d88\u8cbb\u8005\u30b9\u30ec\u30c3\u30c9\n    std::thread consumer([&amp;queue]() {\n        int value;\n        while (true) {\n            queue.wait_and_pop(value);\n            std::cout &lt;&lt; \"Consumed: \" &lt;&lt; value &lt;&lt; std::endl;\n        }\n    });\n\n    producer.join();\n    \/\/ Note: \u3053\u306e\u4f8b\u3067\u306f\u6d88\u8cbb\u8005\u30b9\u30ec\u30c3\u30c9\u306f\u660e\u793a\u7684\u306b\u7d42\u4e86\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\n}<\/pre>\n\n\n\n<p>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5171\u6709\u30c7\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u5fc5\u305a\u30ed\u30c3\u30af\u3067\u4fdd\u8b77\u3059\u308b<\/li>\n\n\n\n<li>atomic\u578b\u306e\u6d3b\u7528\u3092\u691c\u8a0e\u3059\u308b<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u7af6\u5408\u3092\u9632\u3050\u305f\u3081\u306e\u9069\u5207\u306a\u540c\u671f\u6a5f\u69cb\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8003\u616e\u4e8b\u9805<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ed\u30c3\u30af\u306e\u7bc4\u56f2\u306f\u5fc5\u8981\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b<\/li>\n\n\n\n<li>\u7d30\u7c92\u5ea6\u306e\u30ed\u30c3\u30af\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u9593\u306e\u901a\u4fe1\u30b3\u30b9\u30c8\u3092\u610f\u8b58\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C++11\u306e\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u3092\u7406\u89e3\u3059\u308b<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u540c\u671f\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u3092\u9078\u629e\u3059\u308b<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u53ef\u8996\u6027\u3092\u4fdd\u8a3c\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u5b89\u5168\u306a\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">C++\u30b9\u30ec\u30c3\u30c9\u306e\u540c\u671f\u5236\u5fa1\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u305f\u6392\u4ed6\u5236\u5fa1\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u306f\u5171\u6709\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u540c\u6642\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u540c\u671f\u6a5f\u69cb\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5b89\u5168\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;mutex&gt;\n#include &lt;thread&gt;\n#include &lt;vector&gt;\n#include &lt;iostream&gt;\n\nclass ThreadSafeCounter {\nprivate:\n    mutable std::mutex mutex;  \/\/ mutable\u3067const\u95a2\u6570\u5185\u3067\u306e\u4f7f\u7528\u3092\u53ef\u80fd\u306b\n    int value;\n\npublic:\n    ThreadSafeCounter() : value(0) {}\n\n    \/\/ \u5024\u306e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\n    void increment() {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);  \/\/ RAII\u306b\u3088\u308b\u30ed\u30c3\u30af\u7ba1\u7406\n        ++value;\n    }\n\n    \/\/ \u73fe\u5728\u306e\u5024\u3092\u53d6\u5f97\n    int get() const {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        return value;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid counter_example() {\n    ThreadSafeCounter counter;\n    std::vector&lt;std::thread&gt; threads;\n\n    \/\/ \u8907\u6570\u30b9\u30ec\u30c3\u30c9\u3067\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\n    for (int i = 0; i &lt; 10; ++i) {\n        threads.emplace_back([&amp;counter]() {\n            for (int j = 0; j &lt; 1000; ++j) {\n                counter.increment();\n            }\n        });\n    }\n\n    \/\/ \u3059\u3079\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u7d42\u4e86\u3092\u5f85\u6a5f\n    for (auto&amp; thread : threads) {\n        thread.join();\n    }\n\n    std::cout &lt;&lt; \"Final count: \" &lt;&lt; counter.get() &lt;&lt; std::endl;  \/\/ 10000\u304c\u671f\u5f85\u5024\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u6761\u4ef6\u5909\u6570\u306b\u3088\u308b\u30b9\u30ec\u30c3\u30c9\u9593\u901a\u4fe1\u306e\u5b9f\u73fe<\/h3>\n\n\n\n<p>\u6761\u4ef6\u5909\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u306e\u52b9\u7387\u7684\u306a\u5f85\u6a5f\u3068\u901a\u77e5\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;condition_variable&gt;\n#include &lt;queue&gt;\n#include &lt;thread&gt;\n\ntemplate&lt;typename T&gt;\nclass ThreadSafeQueue {\nprivate:\n    std::mutex mutex;\n    std::condition_variable not_empty;\n    std::queue&lt;T&gt; queue;\n\npublic:\n    void push(T value) {\n        {\n            std::lock_guard&lt;std::mutex&gt; lock(mutex);\n            queue.push(std::move(value));\n        }\n        not_empty.notify_one();  \/\/ \u5f85\u6a5f\u4e2d\u306e\u30b9\u30ec\u30c3\u30c9\u306b\u901a\u77e5\n    }\n\n    T pop() {\n        std::unique_lock&lt;std::mutex&gt; lock(mutex);\n        \/\/ \u30ad\u30e5\u30fc\u304c\u7a7a\u306e\u9593\u5f85\u6a5f\n        not_empty.wait(lock, [this]{ return !queue.empty(); });\n\n        T value = std::move(queue.front());\n        queue.pop();\n        return value;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\uff1a\u751f\u7523\u8005-\u6d88\u8cbb\u8005\u30d1\u30bf\u30fc\u30f3\nvoid producer_consumer() {\n    ThreadSafeQueue&lt;int&gt; queue;\n\n    \/\/ \u751f\u7523\u8005\u30b9\u30ec\u30c3\u30c9\n    std::thread producer([&amp;queue]() {\n        for (int i = 0; i &lt; 10; ++i) {\n            queue.push(i);\n            std::this_thread::sleep_for(std::chrono::milliseconds(100));\n        }\n    });\n\n    \/\/ \u6d88\u8cbb\u8005\u30b9\u30ec\u30c3\u30c9\n    std::thread consumer([&amp;queue]() {\n        for (int i = 0; i &lt; 10; ++i) {\n            int value = queue.pop();\n            std::cout &lt;&lt; \"Consumed: \" &lt;&lt; value &lt;&lt; std::endl;\n        }\n    });\n\n    producer.join();\n    consumer.join();\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n<p>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306e\u9632\u6b62\u306f\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u8ab2\u984c\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u4e3b\u8981\u306a\u9632\u6b62\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;mutex&gt;\n#include &lt;thread&gt;\n\nclass Resource {\nprivate:\n    std::mutex mutex;\n    int value;\n\npublic:\n    Resource() : value(0) {}\n\n    \/\/ \u30ed\u30c3\u30af\u306e\u9806\u5e8f\u3092\u56fa\u5b9a\u3059\u308b\uff08\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3\uff09\n    void transfer(Resource&amp; other, int amount) {\n        \/\/ \u30b9\u30b3\u30fc\u30d7\u30d9\u30fc\u30b9\u306e\u30ed\u30c3\u30af\n        std::scoped_lock lock(mutex, other.mutex);  \/\/ C++17\n\n        if (value &gt;= amount) {\n            value -= amount;\n            other.value += amount;\n        }\n    }\n\n    \/\/ try_lock\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\uff08\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62\u306e\u5225\u30d1\u30bf\u30fc\u30f3\uff09\n    bool try_transfer(Resource&amp; other, int amount) {\n        std::unique_lock&lt;std::mutex&gt; lock1(mutex, std::defer_lock);\n        std::unique_lock&lt;std::mutex&gt; lock2(other.mutex, std::defer_lock);\n\n        \/\/ \u4e21\u65b9\u306e\u30ed\u30c3\u30af\u3092\u540c\u6642\u306b\u53d6\u5f97\u3092\u8a66\u307f\u308b\n        if (std::try_lock(lock1, lock2)) {\n            if (value &gt;= amount) {\n                value -= amount;\n                other.value += amount;\n            }\n            return true;\n        }\n        return false;\n    }\n};\n\n\/\/ \u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u9632\u6b62\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a\n\n1. **\u30ed\u30c3\u30af\u306e\u9806\u5e8f\u4ed8\u3051**\n   - \u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u306b\u4e00\u5b9a\u306e\u9806\u5e8f\u3092\u8a2d\u5b9a\n   - \u5e38\u306b\u540c\u3058\u9806\u5e8f\u3067\u30ed\u30c3\u30af\u3092\u53d6\u5f97<\/pre>\n\n\n\n<p>cpp<br>if (&amp;resource1 &lt; &amp;resource2) {<br>std::lock(resource1.mutex, resource2.mutex);<br>} else {<br>std::lock(resource2.mutex, resource1.mutex);<br>}<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">2. **\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306e\u4f7f\u7528**<\/pre>\n\n\n\n<p>cpp<br>std::mutex mtx;<br>if (mtx.try_lock_for(std::chrono::milliseconds(100))) {<br>\/\/ \u30ed\u30c3\u30af\u53d6\u5f97\u6210\u529f<br>\/\/ \u2026 \u51e6\u7406 \u2026<br>mtx.unlock();<br>} else {<br>\/\/ \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u51e6\u7406<br>}<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">3. **\u968e\u5c64\u7684\u30ed\u30c3\u30af**<\/pre>\n\n\n\n<p>cpp<br>enum class LockLevel { Low = 0, Medium = 1, High = 2 };<\/p>\n\n\n\n<p>class HierarchicalMutex {<br>std::mutex mtx;<br>const LockLevel level;<br>static thread_local LockLevel current_level;<\/p>\n\n\n\n<p>public:<br>void lock() {<br>if (level &lt;= current_level)<br>throw std::runtime_error(\u201cLock hierarchy violated\u201d);<br>mtx.lock();<br>current_level = level;<br>}<br>\/\/ unlock()\u7b49\u306e\u5b9f\u88c5\u306f\u7701\u7565<br>};<br>\u201c`<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u306e\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u5b9f\u88c5\u3068\u6d3b\u7528\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u52b9\u7387\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u8a2d\u8a08\u624b\u6cd5<\/h3>\n\n\n\n<p>\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306f\u3001\u30bf\u30b9\u30af\u306e\u52b9\u7387\u7684\u306a\u5b9f\u884c\u3068\u7cfb\u7d71\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u3092\u5b9f\u73fe\u3059\u308b\u91cd\u8981\u306a\u4e26\u884c\u51e6\u7406\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5b9f\u7528\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u5b9f\u88c5\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;thread&gt;\n#include &lt;queue&gt;\n#include &lt;functional&gt;\n#include &lt;condition_variable&gt;\n#include &lt;future&gt;\n\nclass ThreadPool {\nprivate:\n    std::vector&lt;std::thread&gt; workers;\n    std::queue&lt;std::function&lt;void()&gt;&gt; tasks;\n    std::mutex queue_mutex;\n    std::condition_variable condition;\n    bool stop;\n\npublic:\n    ThreadPool(size_t threads) : stop(false) {\n        for (size_t i = 0; i &lt; threads; ++i) {\n            workers.emplace_back([this] {\n                while (true) {\n                    std::function&lt;void()&gt; task;\n                    {\n                        std::unique_lock&lt;std::mutex&gt; lock(queue_mutex);\n                        condition.wait(lock, [this] {\n                            return stop || !tasks.empty();\n                        });\n\n                        if (stop &amp;&amp; tasks.empty()) {\n                            return;\n                        }\n\n                        task = std::move(tasks.front());\n                        tasks.pop();\n                    }\n                    task();\n                }\n            });\n        }\n    }\n\n    template&lt;class F, class... Args&gt;\n    auto enqueue(F&amp;&amp; f, Args&amp;&amp;... args) \n        -&gt; std::future&lt;typename std::result_of&lt;F(Args...)&gt;::type&gt; {\n        using return_type = typename std::result_of&lt;F(Args...)&gt;::type;\n\n        auto task = std::make_shared&lt;std::packaged_task&lt;return_type()&gt;&gt;(\n            std::bind(std::forward&lt;F&gt;(f), std::forward&lt;Args&gt;(args)...)\n        );\n\n        std::future&lt;return_type&gt; res = task-&gt;get_future();\n        {\n            std::unique_lock&lt;std::mutex&gt; lock(queue_mutex);\n            if (stop) {\n                throw std::runtime_error(\"enqueue on stopped ThreadPool\");\n            }\n            tasks.emplace([task]() { (*task)(); });\n        }\n        condition.notify_one();\n        return res;\n    }\n\n    ~ThreadPool() {\n        {\n            std::unique_lock&lt;std::mutex&gt; lock(queue_mutex);\n            stop = true;\n        }\n        condition.notify_all();\n        for (std::thread &amp;worker : workers) {\n            worker.join();\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30bf\u30b9\u30af\u30ad\u30e5\u30fc\u3092\u4f7f\u3063\u305f\u30b8\u30e7\u30d6\u7ba1\u7406\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30bf\u30b9\u30af\u7ba1\u7406\u306e\u305f\u3081\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class TaskManager {\nprivate:\n    ThreadPool pool;\n    std::vector&lt;std::future&lt;void&gt;&gt; results;\n\npublic:\n    TaskManager(size_t thread_count) : pool(thread_count) {}\n\n    \/\/ \u30bf\u30b9\u30af\u306e\u8ffd\u52a0\n    template&lt;class F, class... Args&gt;\n    void add_task(F&amp;&amp; f, Args&amp;&amp;... args) {\n        auto future = pool.enqueue(std::forward&lt;F&gt;(f), std::forward&lt;Args&gt;(args)...);\n        results.push_back(std::move(future));\n    }\n\n    \/\/ \u3059\u3079\u3066\u306e\u30bf\u30b9\u30af\u306e\u5b8c\u4e86\u3092\u5f85\u6a5f\n    void wait_all() {\n        for (auto&amp; result : results) {\n            result.wait();\n        }\n        results.clear();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid example_usage() {\n    TaskManager task_manager(4);  \/\/ 4\u30b9\u30ec\u30c3\u30c9\u306e\u30d7\u30fc\u30eb\u4f5c\u6210\n\n    \/\/ \u30bf\u30b9\u30af\u306e\u8ffd\u52a0\n    for (int i = 0; i &lt; 100; ++i) {\n        task_manager.add_task([i]() {\n            \/\/ \u91cd\u3044\u51e6\u7406\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\n            std::this_thread::sleep_for(std::chrono::milliseconds(100));\n            std::cout &lt;&lt; \"Task \" &lt;&lt; i &lt;&lt; \" completed\\n\";\n        });\n    }\n\n    \/\/ \u3059\u3079\u3066\u306e\u30bf\u30b9\u30af\u306e\u5b8c\u4e86\u3092\u5f85\u6a5f\n    task_manager.wait_all();\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u624b\u6cd5<\/h3>\n\n\n\n<p>\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9069\u5207\u306a\u30b9\u30ec\u30c3\u30c9\u6570\u306e\u9078\u629e<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">unsigned int get_optimal_thread_count() {\n    unsigned int thread_count = std::thread::hardware_concurrency();\n    return thread_count &gt; 0 ? thread_count : 4;  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306f4\u30b9\u30ec\u30c3\u30c9\n}\n\n\/\/ \u30b9\u30ec\u30c3\u30c9\u6570\u306e\u52d5\u7684\u8abf\u6574\u6a5f\u80fd\nclass AdaptiveThreadPool {\n    void adjust_thread_count(size_t work_load) {\n        size_t optimal = std::min(\n            get_optimal_thread_count(),\n            work_load\n        );\n        resize_pool(optimal);\n    }\n    \/\/ ... \u305d\u306e\u4ed6\u306e\u5b9f\u88c5 ...\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30bf\u30b9\u30af\u306e\u7c92\u5ea6\u8abf\u6574<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30bf\u30b9\u30af\u306e\u5206\u5272\u30b5\u30a4\u30ba\u3092\u8abf\u6574\u3059\u308b\u4f8b\ntemplate&lt;typename Iterator, typename Function&gt;\nvoid parallel_for(Iterator first, Iterator last, Function f) {\n    const size_t total_size = std::distance(first, last);\n    const size_t min_per_thread = 1000;  \/\/ \u6700\u5c0f\u30bf\u30b9\u30af\u30b5\u30a4\u30ba\n\n    if (total_size &lt; min_per_thread) {\n        std::for_each(first, last, f);\n        return;\n    }\n\n    const size_t max_threads = (total_size + min_per_thread - 1) \/ min_per_thread;\n    const size_t hardware_threads = std::thread::hardware_concurrency();\n    const size_t num_threads = std::min(hardware_threads != 0 ? hardware_threads : 2, max_threads);\n\n    const size_t block_size = total_size \/ num_threads;\n\n    \/\/ ... \u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u3067\u306e\u5b9f\u884c ...\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bf\u30b9\u30af\u30c7\u30fc\u30bf\u306e\u5c40\u6240\u6027\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/li>\n\n\n\n<li>false sharing\u306e\u9632\u6b62<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u52d5\u7684\u8abf\u6574<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MonitoredThreadPool : public ThreadPool {\nprivate:\n    std::atomic&lt;size_t&gt; active_tasks{0};\n    std::atomic&lt;size_t&gt; completed_tasks{0};\n\npublic:\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6307\u6a19\u306e\u53d6\u5f97\n    double get_utilization() const {\n        return static_cast&lt;double&gt;(active_tasks) \/ get_thread_count();\n    }\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e1\u30c8\u30ea\u30af\u30b9\u306e\u53ce\u96c6\n    void collect_metrics() {\n        \/\/ ... \u30e1\u30c8\u30ea\u30af\u30b9\u53ce\u96c6\u30ed\u30b8\u30c3\u30af ...\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u62e1\u5f35\u6027\u306e\u9ad8\u3044\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">C++\u30b9\u30ec\u30c3\u30c9\u306e\u30c7\u30d0\u30c3\u30b0\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/h3>\n\n\n\n<p>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30c7\u30d0\u30c3\u30b0\u306f\u8907\u96d1\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u52b9\u679c\u7684\u306b\u884c\u3048\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ed\u30ae\u30f3\u30b0\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;mutex&gt;\n#include &lt;sstream&gt;\n#include &lt;iostream&gt;\n\nclass ThreadSafeLogger {\nprivate:\n    std::mutex mutex;\n\npublic:\n    template&lt;typename T&gt;\n    void log(const T&amp; message) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        std::stringstream ss;\n        ss &lt;&lt; \"Thread \" &lt;&lt; std::this_thread::get_id() &lt;&lt; \": \" &lt;&lt; message &lt;&lt; std::endl;\n        std::cout &lt;&lt; ss.str();\n    }\n};\n\n\/\/ \u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u8ffd\u52a0\nclass DebugableThread {\nprivate:\n    ThreadSafeLogger logger;\n    std::thread thread;\n\npublic:\n    template&lt;typename Function&gt;\n    void start(Function f) {\n        thread = std::thread([this, f]() {\n            logger.log(\"Thread started\");\n            try {\n                f();\n                logger.log(\"Thread completed successfully\");\n            } catch (const std::exception&amp; e) {\n                logger.log(std::string(\"Exception caught: \") + e.what());\n            }\n        });\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u691c\u51fa<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DeadlockDetector {\nprivate:\n    std::map&lt;std::thread::id, std::set&lt;std::mutex*&gt;&gt; thread_locks;\n    std::mutex detector_mutex;\n\npublic:\n    void register_lock_request(std::mutex* mtx) {\n        std::lock_guard&lt;std::mutex&gt; lock(detector_mutex);\n        auto thread_id = std::this_thread::get_id();\n        thread_locks[thread_id].insert(mtx);\n        check_deadlock();\n    }\n\n    void check_deadlock() {\n        \/\/ \u5faa\u74b0\u4f9d\u5b58\u95a2\u4fc2\u306e\u691c\u51fa\n        \/\/ \u5b9f\u88c5\u306f\u7c21\u7565\u5316\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a\u3068\u89e3\u6c7a<\/h3>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u554f\u984c\u3092\u7279\u5b9a\u3057\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ThreadProfiler {\nprivate:\n    struct ThreadMetrics {\n        std::chrono::high_resolution_clock::time_point start_time;\n        std::chrono::nanoseconds total_runtime{0};\n        size_t task_count{0};\n    };\n\n    std::map&lt;std::thread::id, ThreadMetrics&gt; metrics;\n    std::mutex metrics_mutex;\n\npublic:\n    void start_task() {\n        std::lock_guard&lt;std::mutex&gt; lock(metrics_mutex);\n        auto&amp; thread_metrics = metrics[std::this_thread::get_id()];\n        thread_metrics.start_time = std::chrono::high_resolution_clock::now();\n    }\n\n    void end_task() {\n        std::lock_guard&lt;std::mutex&gt; lock(metrics_mutex);\n        auto&amp; thread_metrics = metrics[std::this_thread::get_id()];\n        auto end_time = std::chrono::high_resolution_clock::now();\n        thread_metrics.total_runtime += \n            std::chrono::duration_cast&lt;std::chrono::nanoseconds&gt;(\n                end_time - thread_metrics.start_time);\n        thread_metrics.task_count++;\n    }\n\n    void print_metrics() {\n        std::lock_guard&lt;std::mutex&gt; lock(metrics_mutex);\n        for (const auto&amp; [thread_id, thread_metrics] : metrics) {\n            std::cout &lt;&lt; \"Thread \" &lt;&lt; thread_id &lt;&lt; \":\\n\"\n                     &lt;&lt; \"  Tasks completed: \" &lt;&lt; thread_metrics.task_count &lt;&lt; \"\\n\"\n                     &lt;&lt; \"  Total runtime: \" \n                     &lt;&lt; thread_metrics.total_runtime.count() &lt;&lt; \"ns\\n\";\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u5206\u6790<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class PerformanceMonitor {\nprivate:\n    std::atomic&lt;size_t&gt; lock_contentions{0};\n    std::atomic&lt;size_t&gt; cache_misses{0};\n\npublic:\n    void record_lock_contention() {\n        lock_contentions++;\n    }\n\n    void record_cache_miss() {\n        cache_misses++;\n    }\n\n    void analyze_performance() {\n        if (lock_contentions &gt; threshold) {\n            std::cout &lt;&lt; \"Warning: High lock contention detected\\n\";\n            \/\/ \u5bfe\u7b56\u306e\u63d0\u6848\n        }\n        if (cache_misses &gt; threshold) {\n            std::cout &lt;&lt; \"Warning: High cache miss rate detected\\n\";\n            \/\/ \u5bfe\u7b56\u306e\u63d0\u6848\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u958b\u767a\u8005\u5411\u3051\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename Mutex&gt;\nclass ScopedTryLock {\n    Mutex&amp; mutex;\n    bool locked;\n\npublic:\n    explicit ScopedTryLock(Mutex&amp; m) : mutex(m), locked(false) {\n        locked = mutex.try_lock();\n    }\n\n    bool has_lock() const { return locked; }\n\n    ~ScopedTryLock() {\n        if (locked) {\n            mutex.unlock();\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid safe_operation() {\n    std::mutex mtx;\n    {\n        ScopedTryLock lock(mtx);\n        if (lock.has_lock()) {\n            \/\/ \u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u30bb\u30af\u30b7\u30e7\u30f3\n        } else {\n            \/\/ \u4ee3\u66ff\u51e6\u7406\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b9\u30ec\u30c3\u30c9\u6570\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">size_t get_optimal_thread_count() {\n    size_t hardware_threads = std::thread::hardware_concurrency();\n    size_t optimal_threads = hardware_threads - 1;  \/\/ \u30b7\u30b9\u30c6\u30e0\u7528\u306b1\u30b9\u30ec\u30c3\u30c9\u78ba\u4fdd\n    return std::max(optimal_threads, static_cast&lt;size_t&gt;(1));\n}<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u306e\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">struct alignas(64) CacheAlignedCounter {\n    std::atomic&lt;size_t&gt; value{0};\n    \/\/ \u30d1\u30c7\u30a3\u30f3\u30b0\u306f\u81ea\u52d5\u7684\u306b\u8ffd\u52a0\u3055\u308c\u308b\n};\n\nstd::vector&lt;CacheAlignedCounter&gt; counters(thread_count);<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u53ce\u96c6<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ThreadDebugInfo {\npublic:\n    static void log_thread_info() {\n        std::stringstream ss;\n        ss &lt;&lt; \"Thread \" &lt;&lt; std::this_thread::get_id() &lt;&lt; \" info:\\n\"\n           &lt;&lt; \"  Stack size: \" &lt;&lt; get_stack_size() &lt;&lt; \"\\n\"\n           &lt;&lt; \"  Priority: \" &lt;&lt; get_thread_priority() &lt;&lt; \"\\n\"\n           &lt;&lt; \"  CPU core: \" &lt;&lt; get_current_core() &lt;&lt; \"\\n\";\n        std::cout &lt;&lt; ss.str();\n    }\n\nprivate:\n    static size_t get_stack_size() {\n        \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4f9d\u5b58\u306e\u5b9f\u88c5\n        return 0;\n    }\n\n    static int get_thread_priority() {\n        \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4f9d\u5b58\u306e\u5b9f\u88c5\n        return 0;\n    }\n\n    static int get_current_core() {\n        \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4f9d\u5b58\u306e\u5b9f\u88c5\n        return 0;\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u54c1\u8cea\u3068\u6027\u80fd\u3092\u52b9\u679c\u7684\u306b\u6539\u5584\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-2203","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2203"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2203\/revisions"}],"predecessor-version":[{"id":2204,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2203\/revisions\/2204"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}