{"id":10781,"date":"2025-04-18T18:13:05","date_gmt":"2025-04-18T10:13:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/10781.html"},"modified":"2025-04-18T18:13:05","modified_gmt":"2025-04-18T10:13:05","slug":"%e3%80%90linux%e3%80%91%e4%b8%80%e6%96%87%e5%b8%a6%e4%bd%a0%e7%90%86%e8%a7%a3%e6%b8%85%e6%a5%9a-%e5%90%8c%e6%ad%a5%e4%b8%8e%e4%ba%92%e6%96%a5%ef%bc%88%e9%99%84%e5%a4%a7%e9%87%8fc%e7%90%86%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/10781.html","title":{"rendered":"\u3010Linux\u3011\u4e00\u6587\u5e26\u4f60\u7406\u89e3\u6e05\u695a \u540c\u6b65\u4e0e\u4e92\u65a5\uff08\u9644\u5927\u91cfC++\u7406\u89e3\u4ee3\u7801\u548c\u7406\u89e3\u56fe\u7247\uff0c\u903b\u8f91\u6e05\u6670-\u901a\u4fd7\u6613\u61c2\uff09"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101301-680225adb518e.png\" alt=\"\" \/> \u6bcf\u65e5\u6fc0\u52b1&#xff1a;\u201c\u4e0d\u8bbe\u9650\u548c\u81ea\u6211\u80af\u5b9a\u7684\u5fc3\u6001&#xff1a;I can do all things\u3002 \u2014 Stephen Curry\u201d<\/p>\n<p>\u7eea\u8bba\u200b&#xff1a; \u672c\u7ae0\u662fLinux\u7ebf\u7a0b\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5&#xff0c;\u5b83\u4e0d\u4ec5\u5728Linux\u4e2d\u975e\u5e38\u91cd\u8981\u540c\u6837\u4e5f\u662f\u5728\u65e5\u5e38\u5de5\u4f5c\u9879\u76ee\u4e2d\u5e38\u7528\u7684\u4e24\u79cd\u65b9\u6cd5&#xff0c;\u901a\u8fc7\u4e92\u65a5\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u540c\u4e00\u4e2a\u8d44\u6e90\u65f6\u5bfc\u81f4\u6570\u636e\u7684\u95ee\u9898&#xff0c;\u4ee5\u53ca\u518d\u6b21\u901a\u8fc7\u540c\u6b65\u7684\u5173\u7cfb\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u7684\u4e92\u65a5\u66f4\u52a0\u7684\u6709\u5e8f&#xff0c;\u672c\u7ae0\u5c06\u901a\u8fc7\u77e5\u8bc6 &#043; \u5b9e\u4f8b \u7684\u65b9\u5f0f\u5e26\u4f60\u8f7b\u677e\u8ba4\u8bc6\u6e05\u695a\u5230\u5e95\u4ec0\u4e48\u662f\u5e38\u89c1\u7684\u4e92\u65a5\u548c\u540c\u6b65\u3002 \u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014 \u65e9\u5173\u6ce8\u4e0d\u8ff7\u8def&#xff0c;\u8bdd\u4e0d\u591a\u8bf4\u5b89\u5168\u5e26\u7cfb\u597d&#xff0c;\u53d1\u8f66\u5566&#xff08;\u5efa\u8bae\u7535\u8111\u89c2\u770b&#xff09;\u3002<\/p>\n<h2>1.\u7ebf\u7a0b\u7684\u4e92\u65a5<\/h2>\n<p>\u80cc\u666f<\/p>\n<p>\u5728\u7a0b\u5e8f\u4e2d\u90e8\u5206\u8d44\u6e90\u662f\u5171\u4eab\u7684&#xff0c;\u5982\u5168\u5c40\u7684\u4e1c\u897f\u6240\u6709\u7ebf\u7a0b\u90fd\u80fd\u8bbf\u95ee\u5f97\u5230\u3002 \u5bf9\u6b64\u5f53\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u8fd9\u79cd\u5171\u4eab\u8d44\u6e90\u65f6&#xff0c;\u5c31\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5&#xff1a;<\/p>\n<li>\u4efb\u4f55\u4e00\u4e2a\u65f6\u523b&#xff0c;\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u6b63\u5728\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u2014\u4e34\u754c\u8d44\u6e90&#xff08;\u4e5f\u5c31\u5171\u4eab\u7684\u6570\u636e&#xff09;<\/li>\n<li>\u6211\u4eec\u628a\u8bbf\u95ee\u8fdb\u7a0b\u4e2d\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u4ee3\u7801\u2014\u4e34\u754c\u533a&#xff08;\u88ab\u4fdd\u62a4\u7684\u533a\u57df&#xff09;<\/li>\n<p>\u4e5f\u5c31\u6709\u4e86\u6982\u5ff5&#xff1a;<\/p>\n<ul>\n<li>\u4e92\u65a5&#xff1a;\u5982\u4f55\u65f6\u523b&#xff0c;\u4e92\u65a5\u4fdd\u8bc1\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u6267\u884c\u6d41\u8fdb\u5165\u4e34\u754c\u533a<\/li>\n<li>\u539f\u5b50\u6027&#xff1a;\u4e0d\u4f1a\u88ab\u4efb\u4f55\u8c03\u5ea6\u673a\u5236\u6253\u65ad\u7684\u64cd\u4f5c&#xff0c;\u8be5\u64cd\u4f5c\u53ea\u6709\u4e24\u6001&#xff0c;\u8981\u4e48\u5b8c\u6210&#xff0c;\u8981\u4e48\u672a\u5b8c\u6210<\/li>\n<\/ul>\n<h3>1.1 \u4e92\u65a5\u7684\u6848\u4f8b&#xff08;\u4e86\u89e3&#xff09;<\/h3>\n<p>\u5bf9\u4e8ec\/c&#043;&#043;\u4ee3\u7801\u4f1a\u7ecf\u8fc7\u7f16\u8bd1\u53d8\u6210\u6c47\u7f16&#xff0c;\u800c\u67d0\u4e9b\u4ee3\u7801\u7684\u5e95\u5c42\u53ef\u80fd\u4e0d\u6b62\u4e00\u6761\u6c47\u7f16\u8bed\u53e5\u5c31\u80af\u5b9a\u4e0d\u662f\u539f\u5b50\u7684&#xff08;\u56e0\u4e3a\u8981\u540c\u65f6\u8003\u8651\u4e09\u4e2a\u8bed\u53e5\u7684\u771f\u5047&#xff09;\u5982\u4e0b\u9762\u7684\u53d8\u91cfa&#043;&#043;\u7684\u5e95\u5c42&#xff1a;<img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101302-680225aebdb83.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u56e0\u4e3a\u65f6\u95f4\u7247\u5207\u6362&#xff0c;\u53ef\u80fd\u5728\u4e00\u4e2a\u4ee3\u7801\u7684\u5e95\u5c42\u7684\u591a\u4e2a\u8bed\u53e5\u4e2d\u7684\u7b2c\u4e8c\u4e2a\u8bed\u53e5\u65f6\u95f4\u7247\u5c31\u5230\u4e86&#xff0c;\u5bfc\u81f4\u672a\u6267\u884c\u5b8c\u5c31\u5207\u8d70\u4e86&#xff0c;\u8d70\u4e4b\u524d\u4f1a\u4fdd\u5b58\u597d\u4e0a\u4e0b\u6587\u6570\u636e\u3002\u8f6e\u5230\u6267\u884c\u5176\u4ed6\u7ebf\u7a0b&#xff0c;\u5047\u8bbe\u5176\u4ed6\u7ebf\u7a0b\u4e5f\u540c\u6837\u8bbf\u95ee\u76f8\u540c\u7684\u5185\u5b58\u8d44\u6e90&#xff0c;\u5e76\u4fee\u6539\u4e86\u8be5\u8d44\u6e90&#xff0c;\u5f53\u540e\u9762\u65f6\u95f4\u7247\u5230\u4e86\u3002\u53c8\u8f6e\u5230\u4e00\u5f00\u59cb\u7684\u7ebf\u7a0b&#xff0c;\u4ed6\u4f1a\u7ee7\u7eed\u4ece\u672a\u5b8c\u6210\u7684\u90e8\u5206\u5f00\u59cb&#xff0c;\u800c\u975e\u5148\u8bfb\u53d6\u5185\u5b58\u6570\u636e&#xff0c;\u8fd9\u6837\u5c31\u4f1a\u5bfc\u81f4\u524d\u9762\u7684\u7ebf\u7a0b\u7684\u4efb\u52a1\u767d\u505a&#xff08;\u56e0\u4e3a\u4e00\u5f00\u59cb\u7684\u7ebf\u7a0b\u7684\u6570\u636e\u65f6\u4e4b\u524d\u7684\u6570\u636e&#xff0c;\u4ed6\u4fee\u6539\u540e\u5c31\u4f1a\u5bfc\u81f4\u6570\u636e\u56de\u5230\u4e4b\u524d&#xff09;&#xff01; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101302-680225aed2976.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u591a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u5168\u90e8\u6574\u5f62\u7684\u6c47\u7f16&#xff0c;\u82e5\u4e0d\u662f\u539f\u5b50\u7684&#xff0c;\u5c31\u4f1a\u6709\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u5e76\u53d1\u95ee\u9898\u3002<\/p>\n<p>\u5176\u4e2d\u8ba4\u8bc6\u5230CPU\u4e2d\u6267\u884c\u8fc7\u7a0b&#xff1a;<\/p>\n<li>\u7b97&#xff1a;\u7b97\u672f\u8fd0\u7b97<\/li>\n<li>\u903b&#xff1a;\u903b\u8f91\u8fd0\u7b97&#xff08;\u771f\u5047&#xff09;<\/li>\n<li>\u4e2d&#xff1a;\u5904\u7406\u5185\u5916\u4e2d\u65ad<\/li>\n<li>\u63a7&#xff1a;\u63a7\u5236\u5355\u5143&#xff08;\u65f6\u949f\u63a7\u5236&#xff09;<\/li>\n<p>\u5176\u4e2d if \u5224\u65ad\u8bed\u53e5\u540c\u6837\u4e0d\u662f\u539f\u5b50\u7684&#xff08;\u672c\u8d28\u4e5f\u548c\u4e0a\u9762\u7684&#043;&#043;\u4e00\u6837\u9700\u8981\u5230CPU\u4e2d\u53bb\u5904\u7406\u5224\u65ad&#xff0c;\u8fd9\u6837\u6c47\u7f16\u8bed\u53e5\u5c31\u6709\u591a\u4e2a&#xff09;&#xff01;\u6570\u636e\u5728\u5185\u5b58\u4e2d&#xff0c;\u672c\u8d28\u662f\u88ab\u7ebf\u7a0b\u5171\u4eab\u7684&#xff0c;\u6570\u636e\u88ab\u8bfb\u53d6\u5230\u5bc4\u5b58\u5668\u6c47\u603b&#xff0c;\u672c\u8d28\u53d8\u6210\u4e86\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587&#xff0c;\u5b83\u662f\u5c5e\u4e8e\u7ebf\u7a0b\u79c1\u6709\u6570\u636e\u6570\u636e\u3002<\/p>\n<h3>1.2 \u4e92\u65a5\u9501 \u51fd\u6570&#xff08;\u4e86\u89e3&#xff09;<\/h3>\n<li>\n<p>\u5b9a\u4e49\u9501&#xff1a;<\/p>\n<li>\u5168\u5c40\u9501&#xff1a;pthread_mutex_t mutex &#061; PTHREAD_MUTEX_INITIALIZER \u6b64\u65f6\u5b9a\u4e49\u7684\u5168\u5c40\u9501\u5c31\u80fd\u76f4\u63a5\u4f7f\u7528&#xff0c;\u5e76\u4e14\u4e0d\u7528\u9500\u6bc1\u3002<\/li>\n<li>\u521d\u59cb\u5316\u9501&#xff1a;int pthread_mutex_init(pthread_mutex_t *restrict mutex, const pthread_mutexattr_t *restrict attr) attr\u662f\u9501\u7684\u5c5e\u6027&#xff0c;\u6682\u4e0d\u8003\u8651\u5199\u6210nullptr<\/li>\n<\/li>\n<li>\n<p>\u9500\u6bc1\u9501&#xff1a;<\/p>\n<li>int pthread_mutex_destroy(pthread_mutex_t *mutex)<\/li>\n<\/li>\n<p>\u5f53\u5728\u5c40\u90e8\u521b\u5efa\u4e00\u628a\u9501\u65f6&#xff0c;\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\u64cd\u4f5c&#xff1a;<\/p>\n<li>pthread_mutex_init<\/li>\n<li>pthread_mutex_destory&#xff0c;\u4e5f\u5c31\u4ee3\u8868\u4f7f\u7528\u5b8c\u540e\u9700\u8981\u6467\u6bc1<\/li>\n<p>\u56e0\u4e3a\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\u4f1a\u4f7f\u7528\u5230\u9501\u6240\u4ee5\u9700\u8981\u628a\u5b83\u5f53\u53c2\u6570\u4f20\u9012\u8fdb\u53bb<\/p>\n<li>\n<p>\u52a0\u9501&#xff1a;pthread_mutex_lock(pthread_mutex_t*mutex)<\/p>\n<\/li>\n<li>\n<p>\u89e3\u9501&#xff1a;pthread_mutex_unlock(pthread_mutex_t*mutex)<\/p>\n<\/li>\n<p>\u7533\u8bf7\u6210\u529f\u8fd4\u56de0&#xff0c;\u5931\u8d25\u8fd4\u56de\u9519\u8bef\u7801<\/p>\n<p>\u6ce8\u610f\u4e8b\u9879&#xff1a;<\/p>\n<li>\u52a0\u9501\u65f6\u6211\u4eec\u8981\u5c3d\u53ef\u80fd\u7684\u5c11\u7ed9\u4ee3\u7801\u5757\u52a0\u9501<\/li>\n<li>\u4e00\u822c\u52a0\u9501\u662f\u7ed9\u4e34\u754c\u533a\u52a0\u9501<\/li>\n<li>\u7533\u8bf7\u9501\u672c\u8eab\u662f\u5b89\u5168&#xff0c;\u539f\u5b50\u7684<\/li>\n<li>\u4e00\u65e6\u6709\u4e86\u516c\u5171\u8d44\u6e90&#xff0c;\u7a0b\u5e8f\u5458\u5c31\u9700\u8981\u4fdd\u8bc1\u662f\u52a0\u9501\u7684&#xff01;<\/li>\n<p>\u6839\u636e\u4e92\u65a5\u7684\u5b9a\u4e49:<\/p>\n<p>\u4efb\u4f55\u65f6\u523b\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u7533\u8bf7\u9501\u6210\u529f&#xff01;\u5176\u4ed6\u7ebf\u7a0b\u7533\u8bf7\u5931\u8d25\u65f6&#xff0c;\u4f1a\u5728mutex\u9501\u4e0a\u8fdb\u884c\u963b\u585e&#xff0c;\u672c\u8d28\u4e5f\u5c31\u7b49\u5f85\u3002<\/p>\n<p>\u4e5f\u5c31\u63a8\u51fa\u4e86\u4e0d\u963b\u585e\u7684\u9501&#xff1a;<\/p>\n<li>\u4e0d\u963b\u585e\u7684\u7533\u8bf7\u9501&#xff1a;pthread_mutex_trylock(pthread_mutex_t*mutex)<\/li>\n<p>\u7ebf\u7a0b\u5728\u4e34\u754c\u533a\u4e2d\u8bbf\u95ee\u52a0\u9501\u7684\u4e34\u754c\u8d44\u6e90\u7684\u65f6\u5019\u662f\u53ef\u80fd\u53d1\u751f\u5207\u6362&#xff0c;\u4f46\u5373\u4fbf\u5207\u6362\u4e86\u522b\u4eba\u4e5f\u4ecd\u7136\u4e0d\u80fd\u8bbf\u95ee\u3002&#xff08;\u7406\u89e3\u6210&#xff0c;\u4e00\u4e2a\u623f\u95f4\u53ea\u8981\u6709\u94a5\u5319\u624d\u80fd\u8fdb\u5165&#xff0c;\u800c\u5f53\u6211\u4eec\u8fdb\u5165\u540e\u6211\u4eec\u51fa\u53bb\u65f6\u662f\u62ff\u7740\u94a5\u5319\u8d70\u7684&#xff0c;\u522b\u4eba\u540c\u6837\u8fd8 \u662f\u8fdb\u4e0d\u53bb&#xff09;<\/p>\n<h3>1.3 \u7b80\u5355\u4e92\u65a5\u9501&#xff08;\u6e90\u7801&#xff09;<\/h3>\n<p><span class=\"token comment\">\/\/main.cpp<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;thread&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;cstdlib&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&#034;LockGuard.hpp&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&#034;Thread.hpp&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;vector&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5e94\u7528\u65b9\u7684\u89c6\u89d2<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u4e3a\u4e86\u80fd\u540c\u65f6\u4f20\u9012\u7ebf\u7a0b\u540d\u548c\u9501\u53d8\u91cf<\/span><br \/>\n<span class=\"token comment\">\/\/\u5c31\u6784\u5efaThreadData\u7c7b&#xff0c;\u8ba9\u5176\u53ef\u4ee5\u76f4\u63a5\u4e00\u8d77\u4f20\u9012\u8fdb\u53bb<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThreadData<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">ThreadData<\/span><span class=\"token punctuation\">(<\/span>string<span class=\"token operator\">&amp;<\/span> name<span class=\"token punctuation\">,<\/span>pthread_mutex_t<span class=\"token operator\">*<\/span> lock<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span><span class=\"token function\">threadname<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">pmutex<\/span><span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    string threadname<span class=\"token punctuation\">;<\/span><br \/>\n    pthread_mutex_t <span class=\"token operator\">*<\/span> pmutex<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> num<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>num<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;hello world: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> num<span class=\"token operator\">&#8212;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> ticket <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5168\u5c40\u7684\u5171\u4eab\u8d44\u6e90<\/span><\/p>\n<p><span class=\"token comment\">\/\/ pthread_mutex_t mutex &#061; PTHREAD_MUTEX_INITIALIZER; \/\/\u5168\u5c40\u9501&#xff0c;\u4e0d\u7528init\u521d\u59cb\u5316<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">GetTicket<\/span><span class=\"token punctuation\">(<\/span>ThreadData <span class=\"token operator\">*<\/span>td<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u62a2\u7968\u539f\u7406&#xff1a;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token punctuation\">{<\/span>   <span class=\"token comment\">\/\/\u901a\u8fc7\u82b1\u62ec\u53f7\u62ec\u5176\u6765\u7684\u90e8\u5206\u4e3a\u4e00\u4e2a\u4ee3\u7801\u5757\u4e5f\u5c31\u662f\u786e\u5b9a\u4e86\u4e34\u754c\u533a<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/pthread_mutex_lock(mutex);\/\/\u52a0\u9501<\/span><br \/>\n            LockGuard <span class=\"token function\">lockguard<\/span><span class=\"token punctuation\">(<\/span>td<span class=\"token operator\">-&gt;<\/span>pmutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/LockGuard\u7c7b\u4f1a\u81ea\u52a8\u7684\u7533\u8bf7\u9501&#xff0c;\u5e76\u4e14\u91ca\u653e\u9501&#xff08;\u56e0\u4e3a\u5f53\u4ed6\u6784\u9020\u548c\u6790\u6784\u65f6\u5c31\u4f1a\u6267\u884c\u52a0\u9501\u89e3\u9501\u64cd\u4f5c&#xff01;&#xff09;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ticket <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ 4. \u4e00\u4e2a\u7ebf\u7a0b\u5728\u4e34\u754c\u533a\u4e2d\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u65f6\u5019&#xff0c;\u53ef\u4e0d\u53ef\u80fd\u53d1\u751f\u5207\u6362?\u53ef\u80fd&#xff0c;\u5b8c\u5168\u5141\u8bb8&#xff01;&#xff01;<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ \u5145\u5f53\u62a2\u7968\u82b1\u8d39\u7684\u65f6\u95f4<\/span><br \/>\n                <span class=\"token function\">usleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%s get a ticket: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span>td<span class=\"token operator\">-&gt;<\/span>threadname<span class=\"token punctuation\">.<\/span><span class=\"token function\">c_str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>ticket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                ticket<span class=\"token operator\">&#8212;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token comment\">\/\/ pthread_mutex_unlock(mutex);\/\/\u89e3\u9501<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">else<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ pthread_mutex_unlock(mutex);\/\/\u89e3\u9501<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>string <span class=\"token function\">GetThreadName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> number <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> name<span class=\"token punctuation\">[<\/span><span class=\"token number\">64<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">snprintf<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Thread-%d&#034;<\/span><span class=\"token punctuation\">,<\/span> number<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> name<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    pthread_mutex_t mutex<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_mutex_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    string name1 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetThreadName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ThreadData <span class=\"token operator\">*<\/span>td1 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">ThreadData<\/span><span class=\"token punctuation\">(<\/span>name1<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6784\u9020\u7c7b<\/span><\/p>\n<p>    Thread<span class=\"token operator\">&lt;<\/span>ThreadData<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">t1<\/span><span class=\"token punctuation\">(<\/span>td1<span class=\"token punctuation\">,<\/span> GetTicket<span class=\"token punctuation\">,<\/span>name1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u628aThreadData\u8fd9\u4e2a\u7c7b\u505a\u53c2\u6570\u4f20\u9012\u8fdb\u53bb&#xff0c;\u5728\u5185\u90e8\u5c31\u80fd\u540c\u65f6\u62ff\u5230<\/span><\/p>\n<p>    string name2 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetThreadName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ThreadData <span class=\"token operator\">*<\/span>td2 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">ThreadData<\/span><span class=\"token punctuation\">(<\/span>name2<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    Thread<span class=\"token operator\">&lt;<\/span>ThreadData<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">t2<\/span><span class=\"token punctuation\">(<\/span>td2<span class=\"token punctuation\">,<\/span>GetTicket<span class=\"token punctuation\">,<\/span>name2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    string name3 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetThreadName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ThreadData <span class=\"token operator\">*<\/span>td3 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">ThreadData<\/span><span class=\"token punctuation\">(<\/span>name3<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    Thread<span class=\"token operator\">&lt;<\/span>ThreadData<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">t3<\/span><span class=\"token punctuation\">(<\/span>td3<span class=\"token punctuation\">,<\/span> GetTicket<span class=\"token punctuation\">,<\/span> name3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    string name4 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">GetThreadName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ThreadData <span class=\"token operator\">*<\/span>td4 <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">ThreadData<\/span><span class=\"token punctuation\">(<\/span>name4<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    Thread<span class=\"token operator\">&lt;<\/span>ThreadData<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token function\">t4<\/span><span class=\"token punctuation\">(<\/span>td4<span class=\"token punctuation\">,<\/span> GetTicket<span class=\"token punctuation\">,<\/span> name4<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t3<span class=\"token punctuation\">.<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t4<span class=\"token punctuation\">.<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t3<span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    t4<span class=\"token punctuation\">.<\/span><span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">pthread_mutex_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">delete<\/span> td1<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> td2<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> td3<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">delete<\/span> td4<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/Thread.hpp&#xff1a;<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;string&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;functional&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/typedef function&lt;void()&gt; func_t<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u6ce8\u610f&#xff01;&#xff01;<\/span><br \/>\n<span class=\"token comment\">\/\/\u6b64\u5904\u7684\u4fee\u6539&#xff0c;\u56e0\u4e3a\u5e26\u6709\u6a21\u677f\u6240\u4ee5\u540e\u9762\u7528\u8be5\u7c7b\u578b\u53d8\u6210fun_t&lt;T&gt; <\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> func_t <span class=\"token operator\">&#061;<\/span> function<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">(<\/span>T<span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8fd4\u56de\u503cvoid \u53c2\u6570\u4e3a;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u52a0\u4e0a\u6a21\u677f&#xff0c;\u8fd9\u4e2a\u7c7b\u578b\u662f\u7ed9\u4f20\u8fdb\u6765\u7684\u53c2\u6570\u6570\u636edata\u7684&#xff01;<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Thread<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Thread<\/span><span class=\"token punctuation\">(<\/span>T data<span class=\"token punctuation\">,<\/span> func_t<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> func<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> string<span class=\"token operator\">&amp;<\/span> name<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span><span class=\"token function\">_tid<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_name<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_isrunning<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_func<\/span><span class=\"token punctuation\">(<\/span>func<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_data<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u56e0\u4e3a\u5728\u7c7b\u5185\u7684\u51fd\u6570\u9ed8\u8ba4\u662f\u6709this\u6307\u9488\u7684\u8fd9\u6837\u5c31\u4f1a\u5bfc\u81f4pthread_create\u7684threadrotine\u7684\u7c7b\u578b\u4e0d\u5339\u914d\u800c\u5bfc\u81f4\u7684\u65e0\u6cd5\u4f20\u53c2<\/span><br \/>\n<span class=\"token comment\">\/\/\u6240\u4ee5\u89e3\u51b3\u65b9\u6cd5\u5c31\u662f\u6539\u6210\u9759\u6001\u51fd\u6570&#xff0c;\u4f46\u6b64\u65f6\u53c8\u4e0d\u80fd\u4f7f\u7528\u6210\u5458\u53d8\u91cf\u4e86&#xff0c;\u6240\u54df\u628a\u53c2\u6570args\u6539\u6210this\u4f20\u9012\u8fdb\u6765&#xff01;<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">ThreadRotine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> args<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        Thread <span class=\"token operator\">*<\/span>ts <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span>Thread<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>args<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        ts<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">_func<\/span><span class=\"token punctuation\">(<\/span>ts<span class=\"token operator\">-&gt;<\/span>_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_tid<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">,<\/span>ThreadRotine<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>n <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _isrunning <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span>  <\/p>\n<p>    string <span class=\"token function\">Threadname<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _name<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>_isrunning<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> n <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span>_tid<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            _isrunning <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<p>    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">Isrunning<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _isrunning<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token operator\">~<\/span><span class=\"token function\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    string _name<span class=\"token punctuation\">;<\/span><br \/>\n    func_t<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> _func<span class=\"token punctuation\">;<\/span><\/p>\n<p>    pthread_t _tid<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u521b\u5efa\u81ea\u52a8\u5f62\u6210<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> _isrunning<span class=\"token punctuation\">;<\/span><br \/>\n    T _data<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/pid_t tid;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>1.3.\u9644\u52a0&#xff1a;\u5c01\u88c5\u9501<\/h4>\n<ul>\n<li>\u628a\u9501\u5c01\u88c5\u6210\u4e00\u4e2a\u7c7b\u5b9e\u73b0&#xff0c;\u5f53\u6784\u9020\u65f6\u52a0\u9501&#xff0c;\u6790\u6784\u65f6\u91ca\u653e\u3002<\/li>\n<li>\u8fd9\u6837\u628a\u8be5\u7c7b\u5199\u5728\u4e00\u4e2a\u4ee3\u7801\u5757\u4e2d\u5f53\u6210\u5c40\u90e8\u53d8\u91cf&#xff0c;\u8fd9\u6837\u5c31\u80fd\u8ba9\u5176\u5728\u4ee3\u7801\u5757\u4e2d\u8fdb\u884c\u52a0\u9501&#xff0c;\u51fa\u4ee3\u7801\u5757\u6790\u6784\u89e3\u9501<\/li>\n<\/ul>\n<p>LockGuard.hpp&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><\/p>\n<p>class Mutex<br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\npublic<span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Mutex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_lock<\/span><span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_lock<\/span><span class=\"token punctuation\">(<\/span>_lock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_unlock<\/span><span class=\"token punctuation\">(<\/span>_lock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token operator\">~<\/span><span class=\"token function\">Mutex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>private<span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>_lock<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e0d\u5b9a\u4e49\u9501&#xff0c;\u9ed8\u8ba4\u5916\u9762\u4f1a\u521b\u5efa\u4f20\u8fdb\u6765<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>class LockGuard<br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\npublic<span class=\"token operator\">:<\/span><br \/>\n     <span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_mutex<\/span><span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        _mutex<span class=\"token punctuation\">.<\/span><span class=\"token function\">Lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n         _mutex<span class=\"token punctuation\">.<\/span><span class=\"token function\">Unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><\/p>\n<p>private<span class=\"token operator\">:<\/span><br \/>\n    Mutex _mutex<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u5c31\u80fd\u5b9e\u73b0\u4e00\u4e2a\u57fa\u672c\u7684\u62a2\u7968\u673a\u5236&#xff0c;\u901a\u8fc7\u4e92\u65a5\u9501\u5c31\u4e0d\u4f1a\u5bfc\u81f4\u6570\u636e\u9519\u4e71<\/p>\n<p>ps&#xff1a;\u8fdc\u7a0b\u62f7\u8d1d&#xff1a;scp \u7528\u6237\u540d&#064;IP\u5730\u5740:\u8def\u5f84&#xff08;\u540e\u8f93\u5165\u5bc6\u7801\u5373\u53ef&#xff09;<\/p>\n<p>\u4f46\u6709\u53ef\u80fd\u4e00\u4e2a\u7968\u88ab\u4e00\u4e2a\u4eba\u5168\u90e8\u90fd\u62a2\u4e86&#xff0c;\u5bf9\u5176\u4ed6\u7ebf\u7a0b\u5c31\u5f62\u6210\u4e86\u9965\u997f\u95ee\u9898&#xff0c;\u4ed6\u7684\u539f\u7406\u662f\u4e00\u4e2a\u7ebf\u7a0b\u5728\u7533\u8bf7\u5b8c\u9501&#xff0c;\u89e3\u9501\u540e\u53c8\u7acb\u9a6c\u7533\u8bf7\u9501\u8d44\u6e90\u3002<\/p>\n<hr \/>\n<p>\u8981\u7ed3\u5c40\u9965\u997f\u95ee\u9898&#xff0c;\u4e92\u65a5\u662f\u65e0\u6cd5\u89e3\u51b3\u7684&#xff0c;\u4e5f\u5c31\u662f\u540c\u6b65\u89e3\u51b3&#xff1a;<\/p>\n<ul>\n<li>\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u7533\u8bf7\u5b8c\u9501\u540e\u4e0d\u80fd\u518d\u7acb\u9a6c\u7533\u8bf7\u9501\u8d44&#xff08;\u4e5f\u5c31\u662f\u6709\u4e00\u5b9a\u7684\u987a\u5e8f\u6027&#xff09;&#xff0c;\u8bf7\u770b\u76ee\u5f55\u4e2d\u7684\u540c\u6b65<\/li>\n<\/ul>\n<hr \/>\n<h3>1.4 \u4e92\u65a5\u9501\u7684\u672c\u8d28<\/h3>\n<p>\u5927\u591a\u6570\u4f53\u7cfb\u7ed3\u6784\u90fd\u63d0\u4f9b\u4e86swap\/exchang\u6307\u4ee4&#xff0c;\u8be5\u6307\u4ee4\u7684\u4f5c\u7528\u662f\u628a\u5bc4\u5b58\u5668\u548c\u5185\u5b58\u5355\u5143\u7684\u6570\u636e\u76f8\u4ea4\u6362<\/p>\n<p>\u5e95\u5c42\u6c47\u7f16\u539f\u7406&#xff1a;<\/p>\n<p>exchang eax mem_addr&#xff08;\u4e5f\u5c31\u662f\u628a\u5bc4\u5b58\u5668eax\u7684\u5185\u5bb9\u548c\u5185\u5b58\u6570\u636emem_addr\u4ea4\u6362\u7684\u6c47\u7f16\u8bed\u53e5&#xff09;,\u56e0\u4e3a\u53ea\u6709\u4e00\u6761\u4e3b\u8981\u8bed\u53e5\u6240\u4ee5\u4ea4\u6362\u7684\u8fc7\u7a0b\u662f\u539f\u5b50\u7684&#xff0c;\u5176\u4ed6\u8bed\u53e5\u6267\u884c\u65f6\u5373\u4f7f\u88ab\u5207\u6362&#xff0c;\u4e5f\u4f1a\u628a\u81ea\u8eab\u6570\u636e&#xff08;%al\u5bc4\u5b58\u5668\u7684\u6570\u636e&#xff09;\u5e26\u8d70&#xff0c;\u4e5f\u5c31\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u7ebf\u7a0b\u3002<\/p>\n<p>\u4e92\u65a5\u9501\u7684\u5b9e\u73b0\u539f\u7406&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225af3c011.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u89e3\u91ca&#xff1a;<\/p>\n<p>\u6bcf\u4e2a\u7ebf\u7a0b\u8981\u6267\u884c\u52a0\u9501\u65f6\u9996\u5148\u90fd\u4f1a\u5148move 0\u5230%al\u5bc4\u5b58\u5668\u4e2d&#xff0c;\u7136\u540e\u5728\u548cmutex\u7684\u6570\u636e\u8fdb\u884c\u4ea4\u6362&#xff0c;\u7136\u540e\u5224\u65ad\u5bc4\u5b58\u5668%al\u4e2d\u7684\u503c&gt;0\u5219\u8868\u793a\u52a0\u9501\u6210\u529f&#xff0c;\u53cd\u4e4b\u5219\u52a0\u9501\u5931\u8d25\u5728\u52a0\u9501\u5904\u6302\u8d77\u7b49\u5f85&#xff01; \u52a0\u9501\u5931\u8d25\u7684\u60c5\u51b5&#xff0c;\u56e0\u4e3a\u6709\u4eba\u5df2\u7ecf\u5728\u4f7f\u7528\u8be5\u9501&#xff0c;\u6240\u4ee5\u4f1a\u628a\u5185\u5b58\u4e2d\u7684mutex\u6539\u4e3a\u4e860&#xff08;\u4ed6\u4e5f\u4f1a\u6267\u884c\u7b2c\u4e00\u4e2amove\u64cd\u4f5c&#xff09;&#xff0c;\u5f53\u4ed6\u6ca1\u6709\u5f52\u8fd8\u9501\u8d44\u6e90\u65f6&#xff0c;mutex\u4e2d\u7684\u503c\u4e3a0&#xff0c;\u5f53\u522b\u4eba\u4e00\u4ea4\u6362\u5219%al\u5bc4\u5b58\u5668\u4e2d\u5c31\u4f1a\u53d8\u62100\u5c31\u4f1a\u6302\u8d77\u7b49\u5f85\u4e86\u3002&#xff08;\u8fd9\u6837\u4e5f\u5c31\u5b9e\u73b0\u4e86\u4e92\u65a5\u9501&#xff0c;\u52a0\u9501\u7684\u533a\u57df\u53ea\u80fd\u7531\u4e00\u4e2a\u7ebf\u7a0b\u4f7f\u7528&#xff01;&#xff09;<\/p>\n<p>\u6240\u4ee5\u52a0\u9501\u7684\u672c\u8d28\u5c31\u662f&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5bc4\u5b58\u5668\u548c\u5185\u5b58\u6570\u636e\u7684\u4ea4\u6362&#xff08;\u56e0\u4e3a\u53ea\u6709\u4e00\u6761\u8bed\u53e5\u6240\u4ee5\u4ea4\u6362\u7684\u8fc7\u7a0b\u662f\u539f\u5b50\u7684&#xff0c;xchgb %al mutex&#xff09;<\/p>\n<\/li>\n<li>\n<p>\u89e3\u9501\u7684\u539f\u7406\u5c31\u662f\u57fa\u4e8e\u52a0\u9501\u7684&#xff0c;\u628a\u5185\u5b58\u6570\u636emutex\u6539\u56de1&#xff0c;\u5e76\u5524\u9192\u7b49\u5f85\u6302\u8d77\u7684\u7ebf\u7a0b\u5373\u53ef\u3002<\/p>\n<\/li>\n<li>\n<p>\u52a0\u9501\u539f\u5219&#xff1a;\u8c01\u52a0\u9501&#xff0c;\u8c01\u89e3\u9501<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>1.5 \u8ba4\u8bc6&#xff1a;\u53ef\u91cd\u5165 \u4e0e \u7ebf\u7a0b\u5b89\u5168<\/h3>\n<p>\u7ebf\u7a0b\u5b89\u5168&#xff1a;<\/p>\n<li>\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u540c\u4e00\u6bb5\u4ee3\u7801\u65f6&#xff0c;\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u540c\u7684\u7ed3\u679c\u3002<\/li>\n<li>\u82e5\u51fa\u73b0\u95ee\u9898&#xff08;\u5982&#xff1a;\u5d29\u6e83&#xff0c;\u6570\u636e\u5f02\u5e38&#xff09;&#xff0c;\u5219\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u3002<\/li>\n<li>\u5176\u4e2d\u7ebf\u7a0b\u5b89\u5168\u548c\u53ef\u91cd\u5165\u672c\u8d28\u662f\u4e00\u6837\u7684&#xff0c;\u53ea\u4e0d\u8fc7\u53ef\u91cd\u5165\u662f\u51fd\u6570\u7684\u6982\u5ff5&#xff0c;\u7ebf\u7a0b\u5b89\u5168\u5219\u662f\u7ebf\u7a0b\u7684\u6982\u5ff5<\/li>\n<p>\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u60c5\u51b5&#xff1a;<\/p>\n<li>\u4e0d\u4fdd\u62a4\u5171\u4eab\u53d8\u91cf\u7684\u51fd\u6570&#xff08;\u5168\u5c40\u53d8\u91cf&#xff09;<\/li>\n<li>\u51fd\u6570\u72b6\u6001\u968f\u7740\u88ab\u8c03\u7528&#xff0c;\u72b6\u6001\u53d1\u751f\u53d8\u5316\u7684\u51fd\u6570&#xff08;\u9759\u6001\u53d8\u91cf\u5728\u51fd\u6570\u4e2d&#xff0c;\u6bcf\u5f53\u88ab\u8c03\u7528\u5c31\u4f1a\u53d1\u751f\u6539\u53d8&#xff09;<\/li>\n<li>\u8fd4\u56de\u6307\u5411\u9759\u6001\u53d8\u91cf\u6307\u9488\u7684\u51fd\u6570<\/li>\n<li>\u8c03\u7528\u7ebf\u7a0b\u4e0d\u5b89\u5168\u51fd\u6570\u7684\u51fd\u6570<\/li>\n<p>\u7ebf\u7a0b\u5b89\u5168\u7684\u60c5\u51b5&#xff1a;<\/p>\n<li>\u6bcf\u4e2a\u7ebf\u7a0b\u5bf9\u5168\u5c40\u53d8\u91cf\u6216\u8005\u9759\u6001\u53d8\u91cf\u53ea\u6709\u8bfb\u53d6\u7684\u6743\u9650&#xff0c;\u800c\u6ca1\u6709\u5199\u5165\u7684\u6743\u9650&#xff0c;\u4e00\u822c\u6765\u8bf4\u8fd9\u4e9b\u7ebf\u7a0b\u662f\u5b89\u5168\u7684&#xff08;\u53ef\u4ee5\u7406\u89e3\u6210\u8fd9\u4e2a\u53d8\u91cf\u5373\u4f7f\u7ebf\u7a0b\u4fee\u6539\u4e86&#xff0c;\u5f53\u7ebf\u7a0b\u7ed3\u675f\u540e\u8be5\u503c\u53c8\u4f1a\u53d8\u56de\u6765\u76f8\u5f53\u4e8e\u6ca1\u53d8&#xff09;<\/li>\n<li>\u7c7b\u6216\u8005\u63a5\u53e3\u5bf9\u4e8e\u7ebf\u7a0b\u6765\u8bf4\u90fd\u662f\u539f\u5b50\u64cd\u4f5c<\/li>\n<li>\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u7684\u5207\u6362\u4e0d\u4f1a\u5bfc\u81f4\u8be5\u63a5\u53e3\u7684\u6267\u884c\u7ed3\u679c\u5b58\u5728\u4e8c\u4e49\u6027<\/li>\n<p>\u5e38\u89c1\u4e0d\u53ef\u91cd\u5165\u7684\u60c5\u51b5&#xff1a;<\/p>\n<li>\u8c03\u7528\u4e86malloc\/free\u51fd\u6570&#xff0c;\u56e0\u4e3amalloc\u51fd\u6570\u662f\u7528\u5168\u5c40\u94fe\u8868\u6765\u7ba1\u7406\u5806\u7684<\/li>\n<li>\u8c03\u7528\u4e86\u6807\u51c6I\/O\u5e93\u51fd\u6570&#xff0c;\u6807\u51c6I\/O\u5e93\u7684\u5f88\u591a\u5b9e\u73b0\u90fd\u4ee5\u4e0d\u53ef\u91cd\u5165\u7684\u65b9\u5f0f\u4f7f\u7528\u5168\u5c40\u6570\u636e\u7ed3\u6784<\/li>\n<li>\u53ef\u91cd\u5165\u51fd\u6570\u4f53\u5185\u4f7f\u7528\u4e86\u9759\u6001\u7684\u6570\u636e\u7ed3\u6784<\/li>\n<p>\u5e38\u89c1\u53ef\u91cd\u5165\u7684\u60c5\u51b5<\/p>\n<li>\u4e0d\u4f7f\u7528\u5168\u5c40\u53d8\u91cf\u6216\u9759\u6001\u53d8\u91cf<\/li>\n<li>\u4e0d\u4f7f\u7528\u7528malloc\u6216\u8005new\u5f00\u8f9f\u51fa\u7684\u7a7a\u95f4<\/li>\n<li>\u4e0d\u8c03\u7528\u4e0d\u53ef\u91cd\u5165\u51fd\u6570<\/li>\n<li>\u4e0d\u8fd4\u56de\u9759\u6001\u6216\u5168\u5c40\u6570\u636e&#xff0c;\u6240\u6709\u6570\u636e\u90fd\u6709\u51fd\u6570\u7684\u8c03\u7528\u8005\u63d0\u4f9b<\/li>\n<li>\u4f7f\u7528\u672c\u5730\u6570\u636e&#xff0c;\u6216\u8005\u901a\u8fc7\u5236\u4f5c\u5168\u5c40\u6570\u636e\u7684\u672c\u5730\u62f7\u8d1d\u6765\u4fdd\u62a4\u5168\u5c40\u6570\u636e<\/li>\n<p>\u53ef\u91cd\u5165\u4e0e\u7ebf\u7a0b\u5b89\u5168\u8054\u7cfb<\/p>\n<li>\u53ef\u91cd\u5165\u51fd\u6570\u4e00\u5b9a\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/li>\n<li>\u51fd\u6570\u662f\u4e0d\u53ef\u91cd\u5165\u7684&#xff0c;\u90a3\u5c31\u4e0d\u80fd\u7531\u591a\u4e2a\u7ebf\u7a0b\u4f7f\u7528&#xff0c;\u6709\u53ef\u80fd\u5f15\u53d1\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898<\/li>\n<li>\u5982\u679c\u4e00\u4e2a\u51fd\u6570\u4e2d\u6709\u5168\u5c40\u53d8\u91cf&#xff0c;\u90a3\u4e48\u8fd9\u4e2a\u51fd\u6570\u65e2\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u4e5f\u4e0d\u662f\u53ef\u91cd\u5165\u7684\u3002<\/li>\n<p>\u53ef\u91cd\u5165\u4e0e\u7ebf\u7a0b\u5b89\u5168\u533a\u522b<\/p>\n<li>\u53ef\u91cd\u5165\u51fd\u6570\u662f\u7ebf\u7a0b\u5b89\u5168\u51fd\u6570\u7684\u4e00\u79cd<\/li>\n<li>\u7ebf\u7a0b\u5b89\u5168\u4e0d\u4e00\u5b9a\u662f\u53ef\u91cd\u5165\u7684&#xff0c;\u800c\u53ef\u91cd\u5165\u51fd\u6570\u5219\u4e00\u5b9a\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/li>\n<li>\u5982\u679c\u5c06\u5bf9\u4e34\u754c\u8d44\u6e90\u7684\u8bbf\u95ee\u52a0\u4e0a\u9501&#xff0c;\u5219\u8fd9\u4e2a\u51fd\u6570\u662f\u7ebf\u7a0b\u5b89\u5168\u7684&#xff0c;\u4f46\u5982\u679c\u8fd9\u4e2a\u91cd\u5165\u51fd\u6570\u82e5\u9501\u8fd8\u672a\u91ca\u653e\u5219\u4f1a\u4ea7\u751f\u6b7b\u9501&#xff0c;\u56e0\u6b64\u662f\u4e0d\u53ef\u91cd\u5165\u7684\u3002<\/li>\n<h3>1.6 \u6b7b\u9501\u95ee\u9898<\/h3>\n<p>\u539f\u7406&#xff1a; \u6b7b\u9501\u662f\u6307\u5728\u4e00\u7ec4\u8fdb\u7a0b\u4e2d\u7684\u5404\u4e2a\u8fdb\u7a0b\u5747\u5360\u6709\u4e0d\u4f1a\u91ca\u653e\u7684\u8d44\u6e90&#xff0c;\u4f46\u56e0\u4e92\u76f8\u7533\u8bf7\u88ab\u5176\u4ed6\u8fdb\u7a0b\u6240\u7ad9\u7528\u4e0d\u4f1a\u91ca\u653e\u7684\u8d44\u6e90\u800c\u5904\u4e8e\u7684\u4e00\u79cd\u6c38\u4e45\u7b49\u5f85\u72b6\u6001\u3002 \u53ef\u4ee5\u7406\u89e3\u6210&#xff0c;\u73b0\u5728\u7528\u4e86\u4e24\u628a\u9501A\/B\u5404\u7528\u4e86\u4e00\u628a\u9501&#xff0c;\u4f46\u4e24\u4e2a\u7ebf\u7a0b\u5fc5\u987b\u540c\u65f6\u6301\u6709\u4e24\u628a\u9501\u624d\u80fd\u7ee7\u7eed\u5f80\u540e\u8fd0\u884c&#xff08;\u5982\u4e0b\u56fe&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225af6e43d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u4e00\u4e2a\u7ebf\u7a0b\u4e5f\u53ef\u80fd\u6b7b\u9501&#xff1a;\u5728\u7a0b\u5e8f\u5185\u90e8\u91cd\u590d\u7533\u8bf7\u5df2\u7ecf\u7533\u8bf7\u8fc7\u7684\u9501&#xff08;\u6b64\u65f6\u7533\u8bf7\u4e0d\u5230\u5c31\u4f1a\u88ab\u6c38\u4e45\u7684\u6302\u8d77\u4e86&#xff09;<\/p>\n<h4>1.6.1\u6b7b\u9501\u4ea7\u751f\u7684\u5fc5\u8981\u6761\u4ef6&#xff1a;<\/h4>\n<li>\u4e92\u65a5\u6761\u4ef6&#xff1a;\u4e00\u4e2a\u8d44\u6e90\u6bcf\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u6267\u884c\u6d41\u4f7f\u7528<\/li>\n<li>\u8bf7\u6c42\u4e0e\u4fdd\u6301\u6761\u4ef6&#xff1a;\u4e00\u4e2a\u6267\u884c\u6d41\u56e0\u8bf7\u6c42\u8d44\u6e90\u800c\u963b\u585e\u65f6&#xff0c;\u5bf9\u5df2\u83b7\u5f97\u7684\u8d44\u6e90\u4fdd\u6301\u4e0d\u653e&#xff08;\u76f8\u5f53\u4e8e\u4e0a\u9762\u4e24\u4e2a\u7ebf\u7a0b\u7684\u60c5\u51b5&#xff09;<\/li>\n<li>\u4e0d\u5265\u593a\u6761\u4ef6&#xff1a;\u4e00\u4e2a\u6267\u884c\u6d41\u5df2\u83b7\u5f97\u7684\u8d44\u6e90&#xff0c;\u5728\u672b\u4f7f\u7528\u5b8c\u4e4b\u524d&#xff0c;\u4e0d\u80fd\u5f3a\u884c\u5265\u593a&#xff08;\u6ca1\u6709\u56e0\u4e3a\u4e00\u4e2a\u7ebf\u7a0b\u4f18\u5148\u7ea7\u9ad8\u800c\u5f3a\u884c\u4f7f\u7528\u6240\u8981\u7684\u9501&#xff09;<\/li>\n<li>\u5faa\u73af\u7b49\u5f85\u6761\u4ef6&#xff1a;\u82e5\u5e72\u6267\u884c\u6d41\u4e4b\u95f4\u5f62\u6210\u4e00\u79cd\u5934\u5c3e\u76f8\u63a5\u7684\u5faa\u73af\u7b49\u5f85\u8d44\u6e90\u7684\u5173\u7cfb&#xff08;\u53ef\u89c1\u4e0a\u56fe&#xff09;<\/li>\n<h4>1.6.2\u907f\u514d\u6b7b\u9501&#xff1a;<\/h4>\n<li>\u4e0d\u52a0\u9501&#xff08;\u7834\u574f\u4e92\u65a5\u6761\u4ef6&#xff0c;\u4f46\u6709\u4e9b\u65f6\u5019\u96be\u4ee5\u5b9e\u73b0&#xff09;<\/li>\n<li>\u82e5\u7533\u8bf7\u67d0\u4e2a\u9501\u4e0d\u6210\u529f\u540e&#xff0c;\u91ca\u653e\u81ea\u8eab\u7684\u9501\u5df2\u6709\u7684\u9501&#xff08;\u90a3\u4e48\u5c31\u7834\u574f\u4e86\u8bf7\u6c42\u4e0e\u4fdd\u6301\u6761\u4ef6&#xff09;<\/li>\n<li>\u5f53\u7533\u8bf7\u67d0\u4e2a\u9501\u65f6\u53d1\u73b0\u4ed6\u662f\u88ab\u5360\u7528\u7684\u65f6&#xff0c;\u76f4\u63a5\u628a\u4ed6\u89e3\u9501\u518d\u52a0\u9501\u5230\u5f53\u524d\u81ea\u5df1\u7ebf\u7a0b&#xff08;\u7834\u574f\u4e0d\u5265\u593a\u6761\u4ef6&#xff09;<\/li>\n<li>\u5c3d\u91cf\u7684\u628a\u9501\u8d44\u6e90\u6309\u987a\u5e8f\u7533\u8bf7\u7ed9\u7ebf\u7a0b &#xff01;&#xff08;\u7834\u574f\u5faa\u73af\u7b49\u5f85\u6761\u4ef6&#xff09;<\/li>\n<li>\u907f\u514d\u9501\u672a\u91ca\u653e\u7684\u573a\u666f\u4ee5\u53ca\u8d44\u6e90\u4e00\u6b21\u5206\u914d&#xff08;\u4e00\u4e2a\u8d44\u6e90\u914d\u4e00\u628a\u9501&#xff09;<\/li>\n<p>\u907f\u514d\u6b7b\u9501\u7684\u7b97\u6cd5&#xff1a;\u6b7b\u9501\u68c0\u6d4b\u7b97\u6cd5&#xff0c;\u94f6\u884c\u5bb6\u7b97\u6cd5\u3002<\/p>\n<h2>2.\u7ebf\u7a0b\u7684\u540c\u6b65<\/h2>\n<p>\u80cc\u666f&#xff1a;<\/p>\n<p>\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u77ed\u65f6\u95f4\u7684\u4e0d\u65ad\u7684\u7533\u8bf7\u9501&#xff0c;\u91ca\u653e\u9501&#xff0c;\u5bfc\u81f4\u5176\u4ed6\u4eba\u957f\u65f6\u95f4\u5f97\u4e0d\u5230\u8d44\u6e90&#xff0c;\u4e5f\u5c31\u5bf9\u5176\u4ed6\u7ebf\u7a0b\u4ea7\u751f\u9965\u997f\u95ee\u9898&#xff0c;\u4e3a\u4e86\u89e3\u51b3\u9965\u997f\u95ee\u9898&#xff0c;\u5f52\u8fd8\u8d44\u6e90\u540e\u7ebf\u7a0b\u4e0d\u80fd\u7acb\u5373\u518d\u6b21\u7533\u8bf7&#xff0c;\u518d\u901a\u8fc7\u7c7b\u4f3c\u961f\u5217\u7684\u7ed3\u6784&#xff08;\u5148\u8fdb\u5148\u51fa&#xff0c;\u4e5f\u5c31\u662f\u6709\u987a\u5e8f\u6027&#xff09;\u7ba1\u7406\u8981\u7533\u8bf7\u9501\u8d44\u6e90\u7684\u7ebf\u7a0b\u3002<\/p>\n<p>\u5bf9\u6b64\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u5c31\u662f\u540c\u6b65&#xff1a;<\/p>\n<p>\u540c\u6b65&#xff1a;\u5728\u4e34\u754c\u8d44\u6e90\u4f7f\u7528\u5b89\u5168\u7684\u524d\u63d0\u4e0b&#xff0c;\u8ba9\u591a\u7ebf\u7a0b\u6267\u884c\u5177\u6709\u4e00\u5b9a\u7684\u987a\u5e8f\u6027\u3002\u4e92\u65a5\u80fd\u4fdd\u8bc1\u8d44\u6e90\u7684\u5b89\u5168&#xff0c;\u540c\u6b65\u80fd\u591f\u8f83\u4e3a\u5145\u5206\u9ad8\u6548\u7684\u4f7f\u7528\u8d44\u6e90\u3002<\/p>\n<h3>2.1 \u540c\u6b65 &#043; \u4e92\u65a5 -&gt; CP\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b<\/h3>\n<p>&#xff08;\u8ba1\u7b97\u673a\u9886\u57df\u975e\u5e38\u91cd\u8981\u7684\u6a21\u578b&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225af80ec8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u65e5\u5e38\u751f\u6d3b\u4e2d\u8d85\u5e02\u5c31\u662f\u5178\u578b\u7684\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u5c31\u6709\u751f\u4ea7\u8005\u3001\u6d88\u8d39\u8005&#xff08;\u5982\u4e0b\u56fe&#xff09;&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225af905b1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u751f\u4ea7\u8005\u3001\u6d88\u8d39\u8005\u7684\u4e09\u5927\u5173\u7cfb&#xff1a;<\/p>\n<li>\u751f\u4ea7\u8005\u4e0e\u751f\u4ea7\u8005\u7684\u5173\u7cfb&#xff1a;\u4e92\u65a5&#xff08;\u4f9b\u5e94\u5546\u76f8\u4e92\u7ade\u4e89&#xff09;<\/li>\n<li>\u6d88\u8d39\u8005\u4e0e\u6d88\u8d39\u8005\u7684\u5173\u7cfb&#xff1a;\u4e92\u65a5&#xff08;\u5047\u5982\u53ea\u6709\u4e00\u4efd\u5546\u54c1\u4e86\u800c\u90fd\u60f3\u8981\u8fd9\u4e2a\u5546\u54c1\u90a3\u4e48\u5c31\u662f\u7ade\u4e89\u5173\u7cfb&#xff09;<\/li>\n<li>\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u7684\u5173\u7cfb&#xff1a;\u4e92\u65a5&#xff08;\u751f\u4ea7\u8005\u653e\u5b8c\u4e86\u5546\u54c1\u6d88\u8d39\u8005\u624d\u80fd\u62ff\u5546\u54c1&#xff09;\u3001\u540c\u6b65&#xff08;\u4e0d\u80fd\u8ba9\u4e00\u65b9\u6301\u7eed\u7684\u5904\u7406\u5546\u54c1&#xff08;\u4e0d\u65ad\u5730\u4e70\/\u5356&#xff09;\u90fd\u662f\u6709\u95ee\u9898\u7684&#xff09;<\/li>\n<p>\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u672c\u8d28\u5c31\u662f\u5904\u7406\u597d\u4e0a\u65b9\u7684\u4e09\u4e2a\u5173\u7cfb\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225afa58fa.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 321\u539f\u5219&#xff1a;<\/p>\n<p>3.\u4e09\u79cd\u5173\u7cfb 2.\u4e24\u79cd\u89d2\u8272&#xff08;\u751f\u4ea7\u7ebf\u7a0b\/\u6d88\u8d39\u8fdb\u7a0b&#xff09; 1.\u4e00\u4e2a\u4ea4\u6613\u573a\u6240&#xff08;\u5185\u5b58\u7a7a\u95f4&#xff09;<\/p>\n<h4>2.2.1 \u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u7684\u4f18\u52bf&#xff1a;<\/h4>\n<li>\u8ba9\u591a\u6267\u884c\u6d41\u4e4b\u95f4\u7684\u4e00\u4e2a\u6267\u884c\u89e3\u8026&#xff08;\u628a\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u4e24\u4e2a\u7ebf\u7a0b&#xff0c;\u53cc\u65b9\u5728\u5185\u5b58\u7a7a\u95f4\u5185\u5199\u6216\u8005\u62ff\u6570\u636e&#xff0c;\u76f8\u5f53\u4e8e\u628a\u5185\u5b58\u7a7a\u95f4\u5f53\u6210\u4e00\u4e2a\u7f13\u51b2\u533a\u53ef\u4ee5\u5b58\u4e00\u90e8\u5206\u6570\u636e&#xff0c;\u6240\u4ee5\u751f\u4ea7\u6d88\u8d39\u4e0d\u9700\u8981\u76f8\u4e92\u7b49\u5f85&#xff09;<\/li>\n<li>\u63d0\u9ad8\u5904\u7406\u6570\u636e\u7684\u6548\u7387&#xff08;\u901a\u8fc7\u4ee3\u7801\u89e3\u91ca&#xff09;<\/li>\n<h3>2.2 \u6761\u4ef6\u53d8\u91cf<\/h3>\n<p>\u540c\u6b65\u7684\u5b9e\u73b0\u5c31\u662f\u901a\u8fc7&#xff1a;\u6761\u4ef6\u53d8\u91cf&#xff08;\u4e92\u65a5\u4e2d\u6709\u9501\u4e00\u6837&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225afb632f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u6761\u4ef6\u53d8\u91cf\u662f\u7c7b\u4f3c\u4e8e\u94c3\u94db\u63d0\u9192\u4eba\u7684\u5de5\u5177&#xff0c;\u8fd9\u4e2a\u6761\u4ef6\u53d8\u91cf\u662f\u4e3a\u4e86\u907f\u514d\u6d88\u8d39\u8005&#xff08;\u7ebf\u7a0b&#xff09;\u5728\u8d44\u6e90\u8fd8\u6ca1\u51c6\u5907\u597d\u5c31\u4e0d\u65ad\u7684\u53bb\u5185\u5b58\u7533\u8bf7\u4f46\u4e5f\u62ff\u4e0d\u5230\u8d44\u6e90\u7684\u60c5\u51b5&#xff08;\u672c\u8d28\u5c31\u662f\u540c\u6b65\u7684\u5de5\u5177&#xff09;&#xff0c;\u56e0\u4e3a\u5171\u4eab\u7a7a\u95f4\u662f\u4e92\u65a5\u7684&#xff0c;\u8fd9\u6837\u5c31\u4f1a\u5bfc\u81f4\u751f\u4ea7\u8005\u4e5f\u65e0\u6cd5\u653e\u6570\u636e&#xff08;\u9965\u997f&#xff09;\u3002<\/p>\n<p>\u6761\u4ef6\u53d8\u91cf&#xff1a;\u5f53\u751f\u4ea7\u8005\u5c06\u8d44\u6e90\u51c6\u5907\u597d\u53bb\u63d0\u9192\u6d88\u8d39\u8005<\/p>\n<ul>\n<li>\u5176\u4e2d\u6d88\u8d39\u8005\u5e76\u4e0d\u662f\u5728\u9501\u4e0a\u7b49\u5f85\u8d44\u6e90&#xff0c;\u800c\u662f\u5728\u6761\u4ef6\u53d8\u91cf\u5904\u7684\u4e00\u4e2a\u961f\u5217&#xff08;\u4e00\u4e2a\u963b\u585e\u961f\u5217&#xff09;<\/li>\n<li>\u5148\u5728\u6761\u4ef6\u53d8\u91cf\u5904\u7684\u961f\u5217\u4e2d\u6392\u961f&#xff0c;\u5f53\u8d44\u6e90\u5c31\u7eea\u6761\u4ef6\u53d8\u91cf\u5c31\u4f1a\u5524\u9192\u6d88\u8d39\u7ebf\u7a0b<\/li>\n<li>\u5f53\u62ff\u53d6\u540e\u82e5\u60f3\u518d\u62ff\u5c31\u5fc5\u987b\u4ece\u540e\u5f00\u59cb\u6392&#xff08;\u961f\u5217&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u4e5f\u5c31\u76f8\u5f53\u4e8e\u6761\u4ef6\u53d8\u91cf\u7684\u7ed3\u6784\u4e3a&#xff1a;<\/p>\n<p><span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">cond<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u6761\u4ef6\u662f\u5426\u5c31\u7eea<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> flag<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u7ef4\u62a4\u4e00\u4e2a\u7ebf\u7a0b\u961f\u5217<\/span><br \/>\n    tcb_queue<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5f53flag\u8868\u793a\u5c31\u7eea\u5c31\u4ece\u7ebf\u7a0b\u961f\u5217\u4e2d\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b\u3002<\/p>\n<h3>2.3 \u6761\u4ef6\u53d8\u91cf\u7684\u51fd\u6570&#xff08;\u4e86\u89e3&#xff09;<\/h3>\n<li>\u6761\u4ef6\u53d8\u91cf\u7684\u5b9a\u4e49&#xff1a;\n<li>\u5934\u6587\u4ef6&#xff1a;#include &lt;pthread.h&gt;<\/li>\n<li>\u6210\u529f\u8fd4\u56de0&#xff0c;\u9519\u8bef\u8fd4\u56de\u9519\u8bef\u7801<\/li>\n<li>\u6761\u4ef6\u53d8\u91cf\u7684\u4f7f\u7528\u5fc5\u987b\u8981\u58f0\u660e\u548c\u6467\u6bc1<\/li>\n<\/li>\n<p>\u5bf9\u5c40\u90e8\u6761\u4ef6\u53d8\u91cf\u6467\u6bc1&#xff1a;<br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_cond_destroy<\/span><span class=\"token punctuation\">(<\/span>pthread_cond_t <span class=\"token operator\">*<\/span>cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5bf9\u5c40\u90e8\u6761\u4ef6\u53d8\u91cf\u8fdb\u884c\u521d\u59cb\u5316&#xff1a;<br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_cond_init<\/span><span class=\"token punctuation\">(<\/span>pthread_cond_t <span class=\"token operator\">*<\/span>restrict cond<span class=\"token punctuation\">,<\/span><br \/>\n              <span class=\"token keyword\">const<\/span> pthread_condattr_t <span class=\"token operator\">*<\/span>restrict attr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5168\u5c40\u7684\u6761\u4ef6\u53d8\u91cf&#xff0c;\u548c\u9501\u4e00\u6837\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528<br \/>\npthread_cond_t cond <span class=\"token operator\">&#061;<\/span> PTHREAD_COND_INITIALIZER<span class=\"token punctuation\">;<\/span><\/p>\n<li>\u7ebf\u7a0b\u7b49\u5f85&#xff08;\u7b49\u5f85\u54cd\u94c3&#xff0c;\u6216\u8005\u672c\u8d28\u5c31\u662f\u7533\u8bf7\u8d44\u6e90&#xff09;\n<li>\u5934\u6587\u4ef6&#xff1a;#include &lt;pthread.h&gt;<\/li>\n<li>\u6210\u529f\u8fd4\u56de0&#xff0c;\u9519\u8bef\u8fd4\u56de\u9519\u8bef\u7801<\/li>\n<\/li>\n<p>\u5728\u6307\u5b9a\u7684\u6761\u4ef6\u53d8\u91cfcond\u5904\u7b49\u5f85&#xff0c;\u5e76\u4e14\u8fd8\u8981\u4f20\u9012\u4e00\u628a\u9501mutex<br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span>pthread_cond_t <span class=\"token operator\">*<\/span>restrict cond<span class=\"token punctuation\">,<\/span><br \/>\n              pthread_mutex_t <span class=\"token operator\">*<\/span>restrict mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<li>\u5524\u9192\u7ebf\u7a0b&#xff08;\u6761\u4ef6\u53d8\u91cf\u6210\u7acb\u5e76&#xff09;&#xff1a;\n<li>\u5934\u6587\u4ef6&#xff1a;#include &lt;pthread.h&gt;<\/li>\n<li>\u6210\u529f\u8fd4\u56de0&#xff0c;\u9519\u8bef\u8fd4\u56de\u9519\u8bef\u7801<\/li>\n<\/li>\n<p>\u5524\u9192\u6240\u6709\u7ebf\u7a0b&#xff1a;<br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_cond_broadcast<\/span><span class=\"token punctuation\">(<\/span>pthread_cond_t <span class=\"token operator\">*<\/span>cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b&#xff1a;<br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span>pthread_cond_t <span class=\"token operator\">*<\/span>cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h4>2.3.1 \u6761\u4ef6\u53d8\u91cf\u7684\u57fa\u672c\u4f7f\u7528&#xff1a;<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span> <\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p>pthread_cond_t cond <span class=\"token operator\">&#061;<\/span> PTHREAD_COND_INITIALIZER<span class=\"token punctuation\">;<\/span><br \/>\npthread_mutex_t mutex <span class=\"token operator\">&#061;<\/span> PTHREAD_MUTEX_INITIALIZER<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> <span class=\"token function\">threadRontine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> args<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    string name <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">static_cast<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span>args<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ sleep(1);<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>cond<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7b49\u5f85<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;I am a new thread&#xff1a;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span>  name <span class=\"token operator\">&lt;&lt;<\/span>endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">pthread_mutex_unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u4e3b\u7ebf\u7a0b<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    pthread_t t1<span class=\"token punctuation\">,<\/span>t2<span class=\"token punctuation\">,<\/span>t3<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>t1<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">,<\/span>threadRontine<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token string\">&#034;thread-1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>t2<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">,<\/span>threadRontine<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token string\">&#034;thread-2&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>t3<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">,<\/span>threadRontine<span class=\"token punctuation\">,<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token string\">&#034;thread-3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<p>    <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/5s\u540e\u8ba9\u6761\u4ef6\u53d8\u91cf\u5524\u9192\u7ebf\u7a0b<\/span><br \/>\n    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_cond_broadcast(&amp;cond);\/\/\u5524\u9192\u5168\u90e8\u7ebf\u7a0b<\/span><br \/>\n        <span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span>t1<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span>t2<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span>t3<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5f53\u53ea\u5524\u9192\u4e00\u4e2a\u7ebf\u7a0b&#xff08;pthread_cond_signal&#xff09;\u65f6\u4ed6\u662f\u9010\u4e2a\u7684&#xff1a;<img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225afc8324.png\" alt=\"\" \/> \u5f53\u5524\u9192\u5168\u90e8\u7ebf\u7a0b(pthread_cond_broadcast)\u65f6\u4ed6\u662f\u6240\u6709\u7ebf\u7a0b\u4e00\u8d77\u7684&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225afd718a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u9965\u997f\u95ee\u9898\u4e0d\u80fd\u53d1\u73b0&#xff1a;\u5355\u7eaf\u7684\u4e92\u65a5&#xff0c;\u80fd\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168&#xff0c;\u4f46\u4e0d\u4e00\u5b9a\u5408\u7406\u6216\u9ad8\u6548<\/p>\n<p>pthread_cond_wait\u51fd\u6570\u7684\u7ec6\u8282&#xff1a;<\/p>\n<li>\u5f53\u8ba9\u7ebf\u7a0b\u5728\u8fdb\u884c\u7b49\u5f85\u7684\u65f6\u5019&#xff0c;\u8981\u81ea\u52a8\u91ca\u653e\u7533\u8bf7\u7684\u9501\u3002<\/li>\n<li>\u7ebf\u7a0b\u88ab\u5728\u4e34\u754c\u533a\u5185\u5524\u9192\u7684\u65f6\u5019&#xff0c;\u8981\u91cd\u65b0\u7533\u8bf7\u5e76\u6301\u6709\u9501\u3002<\/li>\n<li>\u5f53\u591a\u4e2a\u7ebf\u7a0b\u88ab\u5524\u9192\u7684\u65f6\u5019&#xff0c;\u5b83\u4eec\u90fd\u8981\u91cd\u65b0\u7533\u8bf7\u5e76\u6301\u6709\u9501&#xff0c;\u6240\u4ee5\u662f\u8981\u7ade\u4e89\u9501\u7684\u3002<\/li>\n<li>\u8c03\u7528\u8be5\u51fd\u6570\u53ef\u80fd\u5931\u8d25&#xff0c;\u8fd9\u6837\u5c31\u4f1a\u8ba9\u7ebf\u7a0b\u5728\u4e0d\u6ee1\u8db3\u4f7f\u7528\u8d44\u6e90\u6761\u4ef6\u7684\u524d\u63d0\u4e0b&#xff08;\u961f\u5217\u4e2d\u7684\u8d44\u6e90\u4e0d\u591f\u591a\u4e2a\u7ebf\u7a0b\u5206\u914d&#xff09;\u5524\u9192\u751f\u4ea7\/\u6d88\u8d39\u7ebf\u7a0b&#xff0c;\u4e5f\u79f0\u4e3a&#xff1a;\u4f2a\u5524\u9192&#xff0c;\u4e5f\u5c31\u662f\u53ef\u80fd\u540c\u65f6\u5524\u9192\u591a\u4e2a&#xff0c;\u4f46\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u62ff\u5230\u9501\u8d44\u6e90&#xff0c;\u5176\u4ed6\u6ca1\u62ff\u5230\u9501\u8d44\u6e90\u7684\u7ebf\u7a0b\u5c31\u662f\u4f2a\u5524\u9192\u72b6\u6001\u3002&#xff08;\u5bf9\u6b64\u89e3\u51b3\u65b9\u6cd5\u662f\u5c06if\u8bed\u53e5\u6362\u6210while\u8bed\u53e5\u8fd9\u6837\u5c31\u80fd&#xff09;<\/li>\n<h3>2.4 \u5b9e\u73b0&#xff1a;\u963b\u585e\u961f\u5217&#xff08;\u53ca\u6761\u4ef6\u53d8\u91cf\u7684\u5e94\u7528&#xff09;<\/h3>\n<p>\u4e0b\u9762\u5c06\u4f7f\u7528\u5230&#xff1a;<\/p>\n<li>\u4e92\u65a5\u9501<\/li>\n<li>\u6761\u4ef6\u53d8\u91cf<\/li>\n<li>\u9501\u7684\u5c01\u88c5<\/li>\n<li>\u5c06\u4efb\u52a1\u5bf9\u8c61\u5316<\/li>\n<li>\u963b\u585e\u961f\u5217&#xff08;\u8ba9\u7ebf\u7a0b\u5b9e\u73b0\u987a\u5e8f\u6027&#xff09;<\/li>\n<li>\u6a21\u62df\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u7684\u8fd0\u884c&#xff01;<\/li>\n<p>\u539f\u7406&#xff1a;<\/p>\n<p>\u751f\u4ea7\u8005\u5c06\u4e00\u4e2a\u4efb\u52a1push\u5230\u961f\u5217\u4e2d&#xff0c;\u800c\u6d88\u8d39\u8005\u518d\u53bb\u901a\u8fc7pop\u5f97\u5230\u6570\u636e\u5e76\u5904\u7406\u3002<\/p>\n<p>\u963b\u585e\u961f\u5217&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/BlockQueue.hpp<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;queue&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;ctime&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&#034;LockGuard.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> defaultcap <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/<\/span><\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Blockqueue<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Blockqueue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> cap <span class=\"token operator\">&#061;<\/span> defaultcap<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span><span class=\"token function\">_capacity<\/span><span class=\"token punctuation\">(<\/span>cap<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">IsFull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> _capacity<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">IsEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u751f\u4ea7\u8005<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T <span class=\"token operator\">&amp;<\/span>in<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        LockGuard <span class=\"token function\">lockgaurd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_lock(&amp;_mutex);<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">IsFull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u751f\u4ea7\u7ebf\u7a0b&#xff0c;\u963b\u585e\u7b49\u5f85<\/span><br \/>\n            <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u653e\u5230\u91cc\u9762\u88ab\u5524\u9192\u4e86\u4f1a\u5728\u9501\u5904\u7b49\u5f85\u4e86&#xff0c;\u800c\u975econd\u5904&#xff0c;\u53ea\u8981\u91ca\u653e\u9501\u540e\u5c31\u80fd\u7acb\u523b\u62ff\u5230\u9501<\/span><br \/>\n        <span class=\"token comment\">\/\/ if(_q.size() &gt; _productor_water_line) pthread_cond_signal(&amp;_c_cond);<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_unlock(&amp;_mutex);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Pop<\/span><span class=\"token punctuation\">(<\/span>T <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        LockGuard <span class=\"token function\">lockgaurd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_lock(&amp;_mutex);<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">IsEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/\u963b\u585e\u7b49\u5f85<\/span><br \/>\n            <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token operator\">*<\/span>out <span class=\"token operator\">&#061;<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">front<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>         <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/(_q.size() &gt; _consumer_water_line) pthread_cond_signal(&amp;_p_cond);<\/span><br \/>\n        _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ pthread_mutex_unlock(&amp;_mutex);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Blockqueue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    queue<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> _q<span class=\"token punctuation\">;<\/span><br \/>\n    size_t _capacity<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/q.size &#061;&#061; capacity\u6ee1<\/span><\/p>\n<p>    pthread_mutex_t _mutex<span class=\"token punctuation\">;<\/span><br \/>\n    pthread_cond_t _p_cond<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7ed9\u751f\u4ea7\u8005\u7684<\/span><br \/>\n    pthread_cond_t _c_cond<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6d88\u8d39\u8005<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ int _consumer_water_line;\/\/ capacity \/ 3 * 2<\/span><br \/>\n    <span class=\"token comment\">\/\/ int _productor_water_line;\/\/capacity \/ 3<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5c01\u88c5\u9501&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/LockGuard.hpp<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Mutex<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Mutex<\/span><span class=\"token punctuation\">(<\/span>pthread_mutex_t <span class=\"token operator\">*<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_lock<\/span><span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_lock<\/span><span class=\"token punctuation\">(<\/span>_lock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_unlock<\/span><span class=\"token punctuation\">(<\/span>_lock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token operator\">~<\/span><span class=\"token function\">Mutex<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    pthread_mutex_t <span class=\"token operator\">*<\/span>_lock<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4e0d\u5b9a\u4e49\u9501&#xff0c;\u9ed8\u8ba4\u5916\u9762\u4f1a\u521b\u5efa\u4f20\u8fdb\u6765<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LockGuard<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n     <span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span>pthread_mutex_t <span class=\"token operator\">*<\/span>lock<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">_mutex<\/span><span class=\"token punctuation\">(<\/span>lock<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token punctuation\">{<\/span><br \/>\n        _mutex<span class=\"token punctuation\">.<\/span><span class=\"token function\">Lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">LockGuard<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n         _mutex<span class=\"token punctuation\">.<\/span><span class=\"token function\">Unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    Mutex _mutex<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4efb\u52a1\u5bf9\u8c61&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/Task.hpp<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">enum<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    ok <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    div_zero<span class=\"token punctuation\">,<\/span><br \/>\n    mod_zero<span class=\"token punctuation\">,<\/span><br \/>\n    unknow<br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Task<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> x<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> y <span class=\"token punctuation\">,<\/span><span class=\"token keyword\">char<\/span> op<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token operator\">:<\/span><span class=\"token function\">_x<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_y<\/span><span class=\"token punctuation\">(<\/span>y<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><span class=\"token function\">_oper<\/span><span class=\"token punctuation\">(<\/span>op<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">switch<\/span> <span class=\"token punctuation\">(<\/span>_oper<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token string\">&#039;&#043;&#039;<\/span><span class=\"token operator\">:<\/span><br \/>\n                result <span class=\"token operator\">&#061;<\/span> _x <span class=\"token operator\">&#043;<\/span> _y<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token string\">&#039;-&#039;<\/span><span class=\"token operator\">:<\/span><br \/>\n                result <span class=\"token operator\">&#061;<\/span> _x <span class=\"token operator\">&#8211;<\/span> _y<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token string\">&#039;*&#039;<\/span><span class=\"token operator\">:<\/span><br \/>\n                result <span class=\"token operator\">&#061;<\/span> _x <span class=\"token operator\">*<\/span> _y<span class=\"token punctuation\">;<\/span><\/p>\n<p>                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token operator\">:<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>_y <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    code <span class=\"token operator\">&#061;<\/span> div_zero<span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n                result <span class=\"token operator\">&#061;<\/span> _x <span class=\"token operator\">\/<\/span> _y<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">case<\/span> <span class=\"token string\">&#039;%&#039;<\/span><span class=\"token operator\">:<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>_y <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token punctuation\">{<\/span><br \/>\n                    code <span class=\"token operator\">&#061;<\/span> mod_zero<span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token punctuation\">}<\/span><br \/>\n                result <span class=\"token operator\">&#061;<\/span> _x <span class=\"token operator\">%<\/span> _y<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">default<\/span><span class=\"token operator\">:<\/span><br \/>\n                code <span class=\"token operator\">&#061;<\/span> unknow<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    string <span class=\"token function\">PrintTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        string s<span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>_x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> _oper<span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>_y<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034;&#061;?&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> s<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token keyword\">operator<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">Run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    string <span class=\"token function\">PrintResult<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        string s<span class=\"token punctuation\">;<\/span><\/p>\n<p>        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>_x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> _oper<span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>_y<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034; &#061;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s<span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034; [&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s<span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token function\">to_string<\/span><span class=\"token punctuation\">(<\/span>code<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        s<span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string\">&#034;]&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> s<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token operator\">~<\/span><span class=\"token function\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _x<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _y<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> _oper<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> result<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> code<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u4efb\u52a1\u9000\u51fa\u7801&#xff0c;0\u7ed3\u679c\u53ef\u4fe1&#xff0c;!0\u7ed3\u679c\u4e0d\u53ef\u4fe1<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4e3b\u7a0b\u5e8f&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/main.cc<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;queue&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;ctime&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;unistd.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&#034;LockGuard.hpp&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> defaultcap <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/<\/span><\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Blockqueue<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Blockqueue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> cap <span class=\"token operator\">&#061;<\/span> defaultcap<span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span><span class=\"token function\">_capacity<\/span><span class=\"token punctuation\">(<\/span>cap<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">nullptr<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">IsFull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> _capacity<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">bool<\/span> <span class=\"token function\">IsEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/\u751f\u4ea7\u8005<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T <span class=\"token operator\">&amp;<\/span>in<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        LockGuard <span class=\"token function\">lockgaurd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_lock(&amp;_mutex);<\/span><br \/>\n        <span class=\"token comment\">\/\/if(IsFull())<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">IsFull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u628aif\u6539\u6210while\u8fd9\u6837\u5373\u4f7f\u8fd4\u56de\u6765\u4e86&#xff0c;\u4e5f\u8981\u5224\u65ad\u6570\u636e\u662f\u5426\u80fd\u518d\u653e\u6570\u636e <\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u751f\u4ea7\u7ebf\u7a0b&#xff0c;\u963b\u585e\u7b49\u5f85<\/span><br \/>\n            <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">push<\/span><span class=\"token punctuation\">(<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u653e\u5230\u91cc\u9762\u88ab\u5524\u9192\u4e86\u4f1a\u5728\u9501\u5904\u7b49\u5f85\u4e86&#xff0c;\u800c\u975econd\u5904&#xff0c;\u53ea\u8981\u91ca\u653e\u9501\u540e\u5c31\u80fd\u7acb\u523b\u62ff\u5230\u9501<\/span><br \/>\n        <span class=\"token comment\">\/\/ if(_q.size() &gt; _productor_water_line) pthread_cond_signal(&amp;_c_cond);<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_unlock(&amp;_mutex);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">Pop<\/span><span class=\"token punctuation\">(<\/span>T <span class=\"token operator\">*<\/span>out<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        LockGuard <span class=\"token function\">lockgaurd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ pthread_mutex_lock(&amp;_mutex);<\/span><br \/>\n        <span class=\"token comment\">\/\/if(IsEmpty())   <\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">IsEmpty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u628aif\u6539\u6210while\u8fd9\u6837\u5373\u4f7f\u8fd4\u56de\u6765\u4e86&#xff0c;\u4e5f\u8981\u5224\u65ad\u662f\u5426\u6709\u6570\u636e\u80fd\u4f7f\u7528 <\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/\u963b\u585e\u7b49\u5f85<\/span><br \/>\n            <span class=\"token function\">pthread_cond_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">,<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token operator\">*<\/span>out <span class=\"token operator\">&#061;<\/span> _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">front<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>         <span class=\"token function\">pthread_cond_signal<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/(_q.size() &gt; _consumer_water_line) pthread_cond_signal(&amp;_p_cond);<\/span><br \/>\n        _q<span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ pthread_mutex_unlock(&amp;_mutex);<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">~<\/span><span class=\"token function\">Blockqueue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">pthread_mutex_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_c_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">pthread_cond_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>_p_cond<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    queue<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span> _q<span class=\"token punctuation\">;<\/span><br \/>\n    size_t _capacity<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/q.size &#061;&#061; capacity\u6ee1<\/span><\/p>\n<p>    pthread_mutex_t _mutex<span class=\"token punctuation\">;<\/span><br \/>\n    pthread_cond_t _p_cond<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7ed9\u751f\u4ea7\u8005\u7684<\/span><br \/>\n    pthread_cond_t _c_cond<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u6d88\u8d39\u8005<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ int _consumer_water_line;\/\/ capacity \/ 3 * 2<\/span><br \/>\n    <span class=\"token comment\">\/\/ int _productor_water_line;\/\/capacity \/ 3<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5bf9\u6b64\u4e3a\u4ec0\u4e48\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u80fd\u63d0\u9ad8\u6570\u636e\u5904\u7406\u7684\u6548\u7387&#xff1f;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101303-680225afe8e10.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u56e0\u4e3a\u5bf9\u4e8e\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u578b\u6765\u8bf4&#xff0c;\u6211\u4eec\u4e0d\u80fd\u53ea\u770b\u5185\u90e8\u4ed6\u7684\u751f\u4ea7\u548c\u6d88\u8d39\u8fc7\u7a0b&#xff0c;\u8fd9\u91cc\u662f\u4e92\u65a5\u7684\u5e76\u6ca1\u6709\u6548\u7387\u7684\u63d0\u5347&#xff0c;\u4f46\u662f\u4ece\u6574\u4f53\u6765\u770b\u751f\u4ea7\u8005\u7ebf\u7a0b\u83b7\u53d6\u6570\u636e\u7684\u8fc7\u7a0b\u548c\u6d88\u8d39\u8005\u7ebf\u7a0b\u5904\u7406\u6570\u636e\u7684\u8fc7\u7a0b\u4e5f\u662f\u9700\u8981\u65f6\u95f4\u7684&#xff0c;\u4ed6\u4eec\u5728\u5904\u7406\u8fd9\u4e9b\u65f6\u95f4\u65f6&#xff0c;\u5176\u4ed6\u7ebf\u7a0b\u5c31\u80fd\u540c\u6b65\u7684\u53bb\u6267\u884c\u751f\u4ea7\/\u6d88\u8d39\u8fc7\u7a0b&#xff0c;\u4ece\u800c\u5b9e\u73b0\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u80fd\u9ad8\u6548\u7684\u6267\u884c\u5176\u4f5c\u7528\u3002<\/p>\n<h3>2.4 \u4fe1\u53f7\u91cf<\/h3>\n<p>\u8be5\u65b9\u6cd5\u540c\u6837\u4e5f\u662f\u5b9e\u73b0\u540c\u6b65\u7684\u5de5\u5177&#xff08;\u53ea\u4e0d\u8fc7\u5e38\u7528\u6761\u4ef6\u53d8\u91cf&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u5c31\u7b80\u7565\u4e86&#xff09;<\/p>\n<p>\u5728\u4e4b\u524d\u6587\u7ae0\u4e2d\u5df2\u7ecf\u5199\u8fc7\u4fe1\u53f7\u91cf\u7684\u57fa\u672c\u6982\u5ff5\u6709&#xff1a;<\/p>\n<li>\u4fe1\u53f7\u91cf\u7684\u672c\u8d28\u662f\u4e00\u628a\u8ba1\u6570\u5668<\/li>\n<li>\u7533\u8bf7\u4fe1\u53f7\u7684\u672c\u8d28\u5c31\u662f\u9884\u5b9a\u8d44\u6e90<\/li>\n<li>PV\u64cd\u4f5c\u662f\u539f\u5b50\u7684&#xff01; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418101304-680225b00dbb7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<p>\u628a\u516c\u5171\u8d44\u6e90\u4e0d\u5f53\u505a\u6574\u4f53&#xff0c;\u591a\u7ebf\u7a0b\u4e0d\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u540c\u4e00\u4e2a\u533a\u57df\u3002 \u5bf9\u6b64\u4fe1\u53f7\u91cf\u4e3a\u4e86\u9632\u6b62\u5206\u6210\u7684n\u4efd\u516c\u5171\u8d44\u6e90&#xff0c;\u5206\u7ed9\u4e86n&#043;k\u4e2a\u7ebf\u7a0b&#xff0c; \u4fe1\u53f7\u91cf\u7684\u4f5c\u7528\u5c31\u662f&#xff1a;\u786e\u5b9a\u7ebf\u7a0b\u80fd\u5426\u8bbf\u95ee\u8d44\u6e90 \u7ebf\u7a0b\u4fe1\u53f7\u91cf\u7533\u8bf7\u6210\u529f\u540e&#xff0c;\u5f53\u7ebf\u7a0b\u9700\u8981\u4f7f\u7528\u65f6\u5c31\u4e0d\u9700\u8981\u518d\u5224\u65ad\u8d44\u6e90\u662f\u5426\u5c31\u7eea&#xff0c;\u76f4\u63a5\u5c31\u80fd\u4f7f\u7528\u4e86&#xff08;\u7533\u8bf7\u4fe1\u53f7\u91cf\u65f6\u5df2\u7ecf\u5224\u65ad\u4e86&#xff09;<\/p>\n<h4>2.4.1\u4fe1\u53f7\u91cf\u7684\u57fa\u672c\u51fd\u6570<\/h4>\n<li>\u4fe1\u53f7\u91cf\u521d\u59cb\u5316\u4e0e\u9500\u6bc1\n<li>\u5934\u6587\u4ef6&#xff1a;#include &lt;semaphore.h&gt;<\/li>\n<\/li>\n<p>\u521d\u59cb\u5316\u4fe1\u53f7\u91cf<br \/>\n  <span class=\"token keyword\">int<\/span> <span class=\"token function\">sem_init<\/span><span class=\"token punctuation\">(<\/span>sem_t 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