{"id":96554,"date":"2026-08-27T21:16:39","date_gmt":"2026-08-27T13:16:39","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/96554.html"},"modified":"2026-08-27T21:16:39","modified_gmt":"2026-08-27T13:16:39","slug":"%e3%80%90linux%e5%ba%94%e7%94%a8%e8%bd%af%e4%bb%b6%e7%bc%96%e7%a8%8b%e3%80%91%e5%a4%9a%e4%bb%bb%e5%8a%a1%e5%ad%a6%e4%b9%a02%e3%80%90%e7%ba%bf%e7%a8%8b%e3%80%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/96554.html","title":{"rendered":"\u3010linux\u5e94\u7528\u8f6f\u4ef6\u7f16\u7a0b\u3011\u591a\u4efb\u52a1\u5b66\u4e602\u3010\u7ebf\u7a0b\u3011"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u7ebf\u7a0b<\/li>\n<li>\n<ul>\n<li>\u4e00\u3001\u7ebf\u7a0b\u7684\u76f8\u5173\u5b9a\u4e49<\/li>\n<li>\u4e8c\u3001\u7ebf\u7a0b\u7684\u521b\u5efa<\/li>\n<li>\u4e09\u3001\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b<\/li>\n<li>\u56db\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6<\/li>\n<li>\u4e94\u3001\u7ebf\u7a0b\u7684\u6d88\u4ea1<\/li>\n<li>\u516d\u3001\u7ebf\u7a0b\u76f8\u5173\u7684\u51fd\u6570\u63a5\u53e3<\/li>\n<li>\n<ul>\n<li>6.1 \u521b\u5efa\u7ebf\u7a0b<\/li>\n<li>6.2 \u7ebf\u7a0b\u7684\u975e\u5206\u79bb\u5c5e\u6027&#xff1a;<\/li>\n<li>6.3 \u7ebf\u7a0b\u9000\u51fa\u53ca\u8d44\u6e90\u56de\u6536<\/li>\n<\/ul>\n<\/li>\n<li>\u4e03\u3001\u7ebf\u7a0b\u7684\u540c\u6b65\u548c\u4e92\u65a5<\/li>\n<li>\n<ul>\n<li>7.1 \u7ebf\u7a0b\u95f4\u901a\u4fe1<\/li>\n<li>7.2 \u7ebf\u7a0b\u95f4\u4e92\u65a5\u673a\u5236<\/li>\n<li>7.3 \u7ebf\u7a0b\u95f4\u540c\u6b65\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u516b\u3001\u6b7b\u9501<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260827131637-6a9038b5435c3.png\" alt=\"\u8bf7\u6dfb\u52a0\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u7ebf\u7a0b<\/h2>\n<h3>\u4e00\u3001\u7ebf\u7a0b\u7684\u76f8\u5173\u5b9a\u4e49<\/h3>\n<ul>\n<li>\u7ebf\u7a0b\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u8fdb\u7a0b&#xff0c;\u7528\u6765\u5b9e\u73b0\u591a\u4efb\u52a1\u5e76\u53d1\u3002<\/li>\n<li>\u7ebf\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4efb\u52a1\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d\u3002<\/li>\n<li>\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u5206\u914d\u7684\u6700\u5c0f\u5355\u4f4d\u3002<\/li>\n<\/ul>\n<p>\u4e3b\u7ebf\u7a0b&#xff1a;\u521b\u5efa\u7ebf\u7a0b\u7684\u8fdb\u7a0b\u3002 \u6b21\u7ebf\u7a0b&#xff1a;\u7531\u8fdb\u7a0b\u521b\u5efa\u51fa\u6765\u7684\u7ebf\u7a0b\u3002<\/p>\n<h3>\u4e8c\u3001\u7ebf\u7a0b\u7684\u521b\u5efa<\/h3>\n<ul>\n<li>\u7ebf\u7a0b\u7531\u6240\u5728\u7684\u8fdb\u7a0b\u521b\u5efa&#xff0c;\u7ebf\u7a0b\u4e00\u5b9a\u662f\u5c5e\u4e8e\u67d0\u4e2a\u8fdb\u7a0b\u7684\u3002<\/li>\n<li>\u7ebf\u7a0b\u521b\u5efa\u65f6&#xff0c;\u6240\u5728\u8fdb\u7a0b\u4e3a\u5176\u5206\u914d\u72ec\u7acb\u7684\u6808\u533a\u7a7a\u95f4&#xff08;\u9ed8\u8ba48M&#xff09;&#xff0c;\u7ebf\u7a0b\u5171\u7528\u8fdb\u7a0b\u7684\u5806\u533a\u3001\u6570\u636e\u533a\u3001\u6587\u672c\u533a\u3001\u5185\u6838\u533a\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260827131637-6a9038b5e13dc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<\/ul>\n<h3>\u4e09\u3001\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b<\/h3>\n<table>\n<tr>\u8fdb\u7a0b\u7ebf\u7a0b<\/tr>\n<tbody>\n<tr>\n<td align=\"center\">\u6982\u5ff5<\/td>\n<td align=\"center\">\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u5206\u914d\u7684\u6700\u5c0f\u5355\u4f4d<\/td>\n<td align=\"center\">CPU\u4efb\u52a1\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u6548\u7387<\/td>\n<td align=\"center\">\u8fdb\u7a0b\u8981\u4e3a\u8fdb\u7a0b\u5206\u914d4G\u7684\u865a\u62df\u5185\u5b58\u7a7a\u95f4<\/td>\n<td align=\"center\">\u7ebf\u7a0b\u7684\u521b\u5efa\u8981\u6bd4\u8fdb\u7a0b\u521b\u5efa\u8981\u5757&#xff0c;\u53ea\u9700\u8981\u5206\u914d\u6808\u533a\u7a7a\u95f4\u5373\u53ef<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u5185\u5b58<\/td>\n<td align=\"center\">\u6d88\u8017\u5927&#xff08;4G&#xff09;<\/td>\n<td align=\"center\">\u6d88\u8017\u5c0f&#xff08;\u4ec5\u9700\u72ec\u7acb\u76848M\u6808\u533a\u7a7a\u95f4&#xff0c;\u5176\u4f59\u7684\u4e0e\u8fdb\u7a0b\u5171\u4eab&#xff09;<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u5e76\u53d1\u91cf<\/td>\n<td align=\"center\">\u76f8\u540c\u8d44\u6e90\u73af\u5883\u4e0b&#xff0c;\u5e76\u53d1\u91cf\u5c11<\/td>\n<td align=\"center\">\u5e76\u53d1\u91cf\u591a<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u5b89\u5168\u6027<\/td>\n<td align=\"center\">\u8fdb\u7a0b\u95f4\u7a7a\u95f4\u72ec\u7acb&#xff0c;\u5b89\u5168\u6027\u9ad8<\/td>\n<td align=\"center\">\u9664\u6808\u533a\u5916&#xff0c;\u5176\u4f59\u7a7a\u95f4\u5171\u7528&#xff0c;\u5b89\u5168\u6027\u4f4e<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">\u901a\u4fe1<\/td>\n<td align=\"center\">\u8fdb\u7a0b\u95f4\u4e0d\u80fd\u76f4\u63a5\u901a\u4fe1&#xff0c;\u9700\u8981\u4f7f\u7528IPC\u673a\u5236\u901a\u4fe1<\/td>\n<td align=\"center\">\u7ebf\u7a0b\u53ef\u4ee5\u76f4\u63a5\u901a\u4fe1&#xff08;\u4f8b\u5982&#xff1a;\u5168\u5c40\u53d8\u91cf\u3001\u5168\u5c40\u961f\u5217\u7b49&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6<\/h3>\n<p>\u5b8f\u89c2\u5e76\u884c\u3001\u5fae\u89c2\u4e32\u884c \u8c03\u5ea6\u65b9\u5f0f\u4e0e\u8fdb\u7a0b\u76f8\u540c<\/p>\n<h3>\u4e94\u3001\u7ebf\u7a0b\u7684\u6d88\u4ea1<\/h3>\n<li>\u7ebf\u7a0b\u9000\u51fa<\/li>\n<li>\u56de\u6536\u7ebf\u7a0b\u7684\u8d44\u6e90\u7a7a\u95f4 \u5177\u4f53\u51fd\u6570\u63a5\u53e3\u5728\u540e\u9762\u8bb2\u89e3\u3002<\/li>\n<h3>\u516d\u3001\u7ebf\u7a0b\u76f8\u5173\u7684\u51fd\u6570\u63a5\u53e3<\/h3>\n<h4>6.1 \u521b\u5efa\u7ebf\u7a0b<\/h4>\n<p>pthread_create<\/p>\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<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>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_t<\/span> <span class=\"token operator\">*<\/span>thread<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token class-name\">pthread_attr_t<\/span> <span class=\"token operator\">*<\/span>attr<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>start_routine<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 punctuation\">,<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>arg<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd\n<p>\u521b\u5efa\u5e76\u542f\u52a8\u4e00\u4e2a\u7ebf\u7a0b\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570\n<p>thread&#xff1a;\u4fdd\u5b58\u7ebf\u7a0bID\u7684\u53d8\u91cf\u5730\u5740&#xff1b; attr&#xff1a;\u8bbe\u7f6e\u7ebf\u7a0b\u5c5e\u6027\u7684\u53d8\u91cf\u5730\u5740&#xff1b;&#xff08;NULL&#xff1a;\u6309\u7167\u9ed8\u8ba4\u5c5e\u6027\u521b\u5efa&#xff09; start_routine&#xff1a;\u51fd\u6570\u6307\u9488&#xff0c;\u6307\u5411\u7ebf\u7a0b\u6267\u884c\u7684\u4efb\u52a1\u51fd\u6570\u7684\u6307\u9488&#xff08;\u7ebf\u7a0b\u4efb\u52a1\u51fd\u6570&#xff09;&#xff1b; arg&#xff1a;\u4f20\u9012\u7ed9\u7ebf\u7a0b\u4efb\u52a1\u51fd\u6570\u7684\u53c2\u6570\u3002<\/p>\n<\/li>\n<li>\u8fd4\u56de\u503c&#xff1a;\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;\u8fd4\u56de\u9519\u8bef\u7801&#xff08;!0&#xff09;\u3002<\/p>\n<\/li>\n<li>\u83b7\u53d6ID\u53f7&#xff1a;\n<p>pthread_self() \/\/\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0bID\u53f7<\/p>\n<\/li>\n<\/ul>\n<p>\u6ce8\u610f&#xff1a;<\/p>\n<li>\u4f7f\u7528\u7ebf\u7a0b\u76f8\u5173\u63a5\u53e3\u65f6&#xff0c;\u9700\u8981\u7f16\u8bd1\u548c\u94fe\u63a5\u7ebf\u7a0b\u5e93&#xff1a;-pthread\/-lpthread&#xff1b;<\/li>\n<li>\u521b\u5efa\u7ebf\u7a0b\u7684\u4e3b\u7ebf\u7a0b\u4e0d\u80fd\u5148\u4e8e\u6b64\u7ebf\u7a0b\u7ed3\u675f&#xff0c;<\/li>\n<h4>6.2 \u7ebf\u7a0b\u7684\u975e\u5206\u79bb\u5c5e\u6027&#xff1a;<\/h4>\n<p>\u7ebf\u7a0b\u7684\u5206\u79bb\u5c5e\u6027&#xff1a;\u4e0d\u9700\u8981\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536\u7684\u7ebf\u7a0b&#xff0c;\u79f0\u4e4b\u4e3a\u5177\u6709\u5206\u79bb\u5c5e\u6027\u7684\u7ebf\u7a0b&#xff0c;\u5c06\u6765\u6267\u884c\u7ed3\u675f&#xff0c;\u7531\u64cd\u4f5c\u7cfb\u7edf\u56de\u6536\u3002<\/p>\n<p>\u8bbe\u7f6etid\u5bf9\u5e94\u7684\u7ebf\u7a0b\u4e3a\u5206\u79bb\u5c5e\u6027\u7684\u7ebf\u7a0b\u3002 pthread_detach(tid); \u4f7f\u7528\u573a\u666f:\u5176\u4ed6\u7ebf\u7a0b\u6ca1\u6709\u673a\u4f1a\u56de\u6536\u8be5\u7ebf\u7a0b\u65f6&#xff0c;\u53ef\u4ee5\u5c06\u8be5\u7ebf\u7a0b\u8bbe\u7f6e\u6210\u5206\u79bb\u5c5e\u6027\u3002<\/p>\n<p>\u7ebf\u7a0b\u7684\u975e\u5206\u79bb\u5c5e\u6027&#xff1a;\u53ef\u4ee5\u88ab\u5176\u4ed6\u7ebf\u7a0b\u7ed3\u675f\u548c\u56de\u6536\u7684\u7ebf\u7a0b&#xff0c;\u79f0\u4e3a\u5177\u6709\u975e\u5206\u79bb\u5c5e\u6027\u7684\u7ebf\u7a0b\u3002 \u56e0\u6b64&#xff0c;\u5177\u6709\u975e\u5206\u79bb\u5c5e\u6027\u7684\u7ebf\u7a0b\u7ed3\u675f\u540e&#xff0c;\u5fc5\u987b\u8981\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536\u3002<\/p>\n<p>\u7ebf\u7a0b\u9ed8\u8ba4\u5c5e\u6027&#xff1a;\u975e\u5206\u79bb\u5c5e\u6027<\/p>\n<h4>6.3 \u7ebf\u7a0b\u9000\u51fa\u53ca\u8d44\u6e90\u56de\u6536<\/h4>\n<li>\u7ebf\u7a0b\u6267\u884c\u7ed3\u675f&#xff0c;return&#xff1b;<\/li>\n<li>\u7ebf\u7a0b\u6240\u5728\u8fdb\u7a0b\u7ed3\u675f&#xff1b;<\/li>\n<li>pthread_exit\u9000\u51fa\u7ebf\u7a0b\u3002<\/li>\n<p>pthread_exit<\/p>\n<ul>\n<li>\u51fd\u6570\u539f\u578b<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>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">pthread_exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span>retval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<p>pthread_join<\/p>\n<ul>\n<li>\n<p>\u51fd\u6570\u539f\u578b<\/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><span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_t<\/span> thread<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span>retval<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\n<p>\u529f\u80fd<\/p>\n<p>\u963b\u585e\u56de\u6536\u7ebf\u7a0b\u8d44\u6e90\u7a7a\u95f4\u548c\u72b6\u6001\u3002<\/p>\n<\/li>\n<li>\n<p>\u53c2\u6570<\/p>\n<p>thread&#xff1a;\u8981\u56de\u6536\u7684\u7ebf\u7a0b\u7684\u7ebf\u7a0bID\u3002 retval&#xff1a;\u4fdd\u5b58\u7ebf\u7a0b\u9000\u51fa\u72b6\u6001\u53d8\u91cf\u7684\u5730\u5740&#xff1b; NULL\u8868\u793a\u4e0d\u63a5\u53d7\u72b6\u6001\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fd4\u56de\u503c&#xff1a;<\/p>\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;\u8fd4\u56de!0\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u4e03\u3001\u7ebf\u7a0b\u7684\u540c\u6b65\u548c\u4e92\u65a5<\/h3>\n<h4>7.1 \u7ebf\u7a0b\u95f4\u901a\u4fe1<\/h4>\n<p>\u4f4d\u4e8e\u6570\u636e\u533a\u7684\u5168\u5c40\u53d8\u91cf\u3001\u5806\u533a\u7533\u8bf7\u7684\u7a7a\u95f4&#xff08;\u961f\u5217&#xff09;\u3001pthread_create\u4f20\u53c2\u3001\u6761\u4ef6\u53d8\u91cf\u3002<\/p>\n<p>\u591a\u7ebf\u7a0b\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u65f6&#xff0c;\u5b58\u5728\u8d44\u6e90\u7ade\u4e89\u95ee\u9898\u3002<\/p>\n<ul>\n<li>\u4e34\u754c\u8d44\u6e90&#xff1a;\u591a\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u540c\u65f6\u8bbf\u95ee\u7684\u533a\u57df&#xff08;\u6587\u4ef6\u3001\u6570\u636e\u5e93\u3001\u5185\u5b58\u4e2d\u7684\u5168\u5c40\u53d8\u91cf\u7b49&#xff09;\u3002<\/li>\n<li>\u8d44\u6e90\u7ade\u4e89&#xff1a;\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u60f3\u5bf9\u4e00\u5757\u5185\u5b58\u8fdb\u884c\u8bbf\u95ee\u3002<\/li>\n<li>\u4e34\u754c\u533a&#xff1a;\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u8fd9\u6bb5\u4ee3\u7801\u79f0\u4e3a\u4e34\u754c\u533a\u3002<\/li>\n<li>\u89e3\u51b3\u65b9\u6cd5&#xff1a;\u4e92\u65a5\u673a\u5236\u3002<\/li>\n<\/ul>\n<h4>7.2 \u7ebf\u7a0b\u95f4\u4e92\u65a5\u673a\u5236<\/h4>\n<p>\u4e92\u65a5\u673a\u5236&#xff1a;\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u65f6&#xff0c;\u5177\u6709\u6392\u4ed6\u6027\u8bbf\u95ee\u7279\u6027\u3002 \u4e92\u65a5\u673a\u5236\u7684\u5b9e\u73b0&#xff1a;\u4e92\u65a5\u9501\u3002 1. \u521b\u5efa\u4e00\u4e2a\u4e92\u65a5\u9501\u5bf9\u8c61&#xff1a;pthread_mutex_t 2. \u521d\u59cb\u5316\u4e92\u65a5\u9501&#xff1a;pthread_mutex_init(); 3. \u52a0\u9501&#xff1a;pthread_mutex_lock(); 4. \u89e3\u9501&#xff1a;pthread_mutex_unlock(); 5. \u9500\u6bc1\u4e92\u65a5\u9501&#xff1a;pthread_mutex_destroy()<\/p>\n<p>\u5728linux\u7cfb\u7edf\u7ec8\u7aef\u4e2d\u5b89\u88c5\u4e92\u65a5\u9501\u7684\u5e93\u6307\u4ee4&#xff1a; sudo apt-get install manpages-posix manpages-posix-dev<\/p>\n<ul>\n<li>\n<p>pthread_mutex_init\/pthread_mutex_destroy<\/p>\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<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>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_mutex_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>restrict mutex<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">const<\/span> <span class=\"token class-name\">pthread_mutexattr_t<\/span> <span class=\"token operator\">*<\/span>restrict attr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_mutex_destroy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd&#xff1a;\n<p>\u521d\u59cb\u5316\/\u9500\u6bc1\u4e00\u4e2a\u9501\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<p>mutex&#xff1a;\u8981\u521d\u59cb\u5316\/\u9500\u6bc1\u7684\u9501\u5bf9\u8c61\u7684\u5730\u5740&#xff1b; attr&#xff1a;\u9501\u5c5e\u6027\u7684\u9996\u5730\u5740&#xff08;NULL&#xff1a;\u9ed8\u8ba4\u5c5e\u6027&#xff09;\u3002<\/p>\n<\/li>\n<li>\u8fd4\u56de\u503c\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;indicate the error.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>pthread_mutex_lock\/pthread_mutex_unlock<\/p>\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<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\">int<\/span> <span class=\"token function\">pthread_mutex_lock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_mutex_unlock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd&#xff1a;\n<p>\u4e0a\u9501\/\u89e3\u9501\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<p>mutex&#xff1a;\u9501\u5730\u5740\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5176\u4ed6\u9501&#xff1a; \u8bfb\u5199\u9501&#xff1a;\u8bfb\u5171\u4eab&#xff0c;\u5199\u72ec\u5360\u3002 \u81ea\u65cb\u9501&#xff1a;\u7533\u8bf7\u4e0d\u5230\u9501\u65f6&#xff0c;\u4e00\u76f4\u5360\u7528CPU\u3002<\/p>\n<h4>7.3 \u7ebf\u7a0b\u95f4\u540c\u6b65\u673a\u5236<\/h4>\n<p>\u7ebf\u7a0b\u95f4\u540c\u6b65&#xff1a;\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1\u65f6&#xff0c;\u5177\u6709\u4e00\u5b9a\u5148\u540e\u987a\u5e8f\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260827131638-6a9038b6856ec.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4fe1\u53f7\u91cf&#xff1a;\u8d44\u6e90\u6570&#xff1b; 1. \u521b\u5efa\u4fe1\u53f7\u91cf\u5bf9\u8c61sem_t&#xff1b; 2. \u521d\u59cb\u5316\u4fe1\u53f7\u91cfsen_init()&#xff1b; 3. \u7533\u8bf7\u4fe1\u53f7\u91cf&#xff08;P\u64cd\u4f5c&#xff09;sem_wait()&#xff1b; 4. \u91ca\u653e\u4fe1\u53f7\u91cf&#xff08;V\u64cd\u4f5c&#xff09;sem_post()&#xff1b; 5. \u9500\u6bc1\u4fe1\u53f7\u91cf&#xff1b;sem_destroy()<\/p>\n<ul>\n<li>sem_init\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;semaphore.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">sem_init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">sem_t<\/span> <span class=\"token operator\">*<\/span>sem<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> pshared<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd&#xff1a;\n<p>\u521d\u59cb\u5316\u4e00\u4e2a\u4fe1\u53f7\u91cf\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<p>sem&#xff1a;\u4fe1\u53f7\u91cf\u5bf9\u8c61\u5730\u5740&#xff1b; pshared&#xff1a;0&#xff1a;\u7ebf\u7a0b\u95f4\u5171\u4eab\u4f7f\u7528&#xff1b;!0&#xff1a;\u8fdb\u7a0b\u95f4\u5171\u4eab\u4f7f\u7528&#xff1b; value&#xff1a;\u4fe1\u53f7\u91cf\u521d\u59cb\u503c\u3002<\/p>\n<\/li>\n<li>\u8fd4\u56de\u503c&#xff1a;\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;\u8fd4\u56de!0\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>sem_wait\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;semaphore.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">sem_wait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">sem_t<\/span> <span class=\"token operator\">*<\/span>sem<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd&#xff1a;\n<p>\u7533\u8bf7\u4e00\u4e2a\u4fe1\u53f7\u91cf\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<p>sem&#xff1a;\u4fe1\u53f7\u91cf\u5bf9\u8c61\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\u8fd4\u56de\u503c&#xff1a;\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;\u8fd4\u56de!0\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>sem_post\n<ul>\n<li>\u51fd\u6570\u539f\u578b&#xff1a;<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;semaphore.h&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">sem_post<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">sem_t<\/span> <span class=\"token operator\">*<\/span>sem<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u529f\u80fd&#xff1a;\n<p>\u91ca\u653e\u4e00\u4e2a\u4fe1\u53f7\u91cf\u3002<\/p>\n<\/li>\n<li>\u53c2\u6570&#xff1a;\n<p>sem&#xff1a;\u4fe1\u53f7\u91cf\u5bf9\u8c61\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\u8fd4\u56de\u503c&#xff1a;\n<p>\u6210\u529f&#xff1a;\u8fd4\u56de0&#xff1b; \u5931\u8d25&#xff1a;\u8fd4\u56de!0\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u516b\u3001\u6b7b\u9501<\/h3>\n<p>\u6b7b\u9501\u6307\u7684\u662f\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d&#xff0c;\u6bcf\u4e2a\u6267\u884c\u6d41&#xff08;\u7ebf\u7a0b&#xff09;\u90fd\u6709\u672a\u91ca\u653e\u7684\u8d44\u6e90&#xff0c;\u4e14\u4e92\u76f8\u8bf7\u6c42\u5bf9\u65b9\u672a\u91ca\u653e\u8d44\u6e90&#xff0c;\u4ece\u800c\u5bfc\u81f4\u9677\u5165\u6c38\u4e45\u7b49\u5f85\u72b6\u6001\u7684\u60c5\u51b5\u3002<\/p>\n<ul>\n<li>\n<p>\u73b0\u8c61<\/p>\n<ul>\n<li>\u73b0\u8c611&#xff1a;\u5fd8\u8bb0\u91ca\u653e\u9501<\/li>\n<li>\u73b0\u8c612&#xff1a;\u91cd\u590d\u52a0\u9501<\/li>\n<li>\u73b0\u8c613&#xff1a;\u591a\u7ebf\u7a0b\u591a\u9501&#xff0c;\u62a2\u5360\u9501\u8d44\u6e90\u4e0d\u5f53<\/li>\n<\/ul>\n<p>\u5982&#xff1a;\u7ebf\u7a0bA\u83b7\u53d6\u4e861\u9501&#xff0c;\u7ebf\u7a0bB\u83b7\u53d6\u4e862\u9501&#xff0c;\u540c\u65f6\u7ebf\u7a0bA\u8fd8\u60f3\u83b7\u53d62\u9501&#xff0c;\u7ebf\u7a0bB\u8fd8\u60f3\u83b7\u53d61\u9501<\/p>\n<\/li>\n<li>\n<p>\u4ea7\u751f\u6b7b\u9501\u7684\u56db\u4e2a\u5fc5\u8981\u6761\u4ef6<\/p>\n<li>\u4e92\u65a5\u6761\u4ef6&#xff1a;\u4e00\u4e2a\u8d44\u6e90\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u88ab\u4e00\u4e2a\u4efb\u52a1\u5360\u7528&#xff08;\u4e00\u4e2a\u6267\u884c\u6d41\u83b7\u53d6\u9501\u540e&#xff0c;\u5176\u5b83\u6267\u884c\u6d41\u4e0d\u80fd\u518d\u83b7\u53d6\u8be5\u9501&#xff09;\u3002<\/li>\n<li>\u8bf7\u6c42\u4e0e\u4fdd\u6301\u6761\u4ef6&#xff1a;\u5df2\u7ecf\u62ff\u7740\u4e00\u90e8\u5206\u8d44\u6e90\u4e0d\u91ca\u653e&#xff0c;\u540c\u65f6\u53c8\u53bb\u7533\u8bf7\u65b0\u7684\u8d44\u6e90&#xff08;\u6267\u884c\u6d41\u672c\u8eab\u4f7f\u7528\u7740\u4e00\u628a\u9501\u5e76\u4e0d\u91ca\u653e&#xff0c;\u8fd8\u5728\u8bf7\u6c42\u522b\u7684\u9501&#xff09;\u3002<\/li>\n<li>\u4e0d\u5265\u593a\u6761\u4ef6&#xff1a;\u8d44\u6e90\u53ea\u80fd\u7531\u6301\u6709\u8005\u4e3b\u52a8\u91ca\u653e&#xff0c;\u7cfb\u7edf\/\u5176\u4ed6\u4efb\u52a1\u4e0d\u80fd\u5f3a\u884c\u62a2\u8fc7\u6765&#xff08;A\u6267\u884c\u6d41\u62ff\u7740\u9501&#xff0c;\u5176\u5b83\u6267\u884c\u6d41\u4e0d\u80fd\u91ca\u653e&#xff09;\u3002<\/li>\n<li>\u5faa\u73af\u7b49\u5f85\u6761\u4ef6&#xff1a;\u82e5\u5e72\u8fdb\u7a0b\u4e4b\u95f4\u5f62\u6210\u4e00\u79cd\u5934\u5c3e\u76f8\u63a5\u7684\u5faa\u73af\u7b49\u5f85\u8d44\u6e90\u5173\u7cfb&#xff08;\u591a\u4e2a\u6267\u884c\u6d41\u62ff\u7740\u5bf9\u65b9\u60f3\u8981\u7684\u9501&#xff0c;\u5e76\u4e14\u5404\u6267\u884c\u6d41\u8fd8\u53bb\u8bf7\u6c42\u5bf9\u65b9\u7684\u9501&#xff09;\u3002<\/li>\n<p>\u56db\u6761\u5168\u4e2d &#061; \u6b7b\u9501&#xff0c;\u7834\u6389\u4efb\u610f\u4e00\u6761 &#061; \u89e3\u9664<\/p>\n<\/li>\n<li>\n<p>\u89e3\u51b3\u65b9\u6cd5<\/p>\n<li>\u9501\u4e00\u5b9a\u8981\u6210\u5bf9\u51fa\u73b0<\/li>\n<li>\u4f7f\u7ebf\u7a0b\u7684\u52a0\u89e3\u9501\u987a\u5e8f\u4e00\u81f4<\/li>\n<li>\u7834\u574f\u73af\u8def\u7b49\u5f85\u6761\u4ef6<\/li>\n<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u975e\u963b\u585e\u9501&#xff0c;\u4e00\u65e6\u7ebf\u7a0b\u53d1\u73b0\u8bf7\u6c42\u7684\u9501\u88ab\u4f7f\u7528&#xff0c;\u5c31\u53bb\u91ca\u653e\u81ea\u5df1\u62e5\u6709\u7684\u8d44\u6e90<\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">pthread_mutex_trylock<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">pthread_mutex_t<\/span> <span class=\"token operator\">*<\/span>mutex<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">sem_trywait<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">sem_t<\/span> <span class=\"token operator\">*<\/span>sem<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u76ee\u5f55\u7ebf\u7a0b\u4e00\u3001\u7ebf\u7a0b\u7684\u76f8\u5173\u5b9a\u4e49\u4e8c\u3001\u7ebf\u7a0b\u7684\u521b\u5efa\u4e09\u3001\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b\u56db\u3001\u7ebf\u7a0b\u7684\u8c03\u5ea6\u4e94\u3001\u7ebf\u7a0b\u7684\u6d88\u4ea1\u516d\u3001\u7ebf\u7a0b\u76f8\u5173\u7684\u51fd\u6570\u63a5\u53e36.1 \u521b\u5efa\u7ebf\u7a0b6.2 \u7ebf\u7a0b\u7684\u975e\u5206\u79bb\u5c5e\u6027&#xff1a;6.3 \u7ebf\u7a0b\u9000\u51fa\u53ca\u8d44\u6e90\u56de\u6536\u4e03\u3001\u7ebf\u7a0b\u7684\u540c\u6b65\u548c\u4e92\u65a57.1 \u7ebf\u7a0b\u95f4\u901a\u4fe17.2 \u7ebf\u7a0b\u95f4\u4e92\u65a5\u673a\u52367.3 \u7ebf\u7a0b\u95f4\u540c\u6b65\u673a\u5236\u516b\u3001\u6b7b\u9501\u7ebf\u7a0b<br 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