{"id":37820,"date":"2025-05-17T17:55:58","date_gmt":"2025-05-17T09:55:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/37820.html"},"modified":"2025-05-17T17:55:58","modified_gmt":"2025-05-17T09:55:58","slug":"%e7%90%86%e8%a7%a3%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%b3%bb%e7%bb%9f_%e5%b9%b6%e5%8f%91%e7%bc%96%e7%a8%8b5_%e5%9f%ba%e4%ba%8e%e7%ba%bf%e7%a8%8b%e7%9a%84%e5%b9%b6%e5%8f%91%e4%ba%8c%e7%ba%bf%e7%a8%8bapi","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/37820.html","title":{"rendered":"\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf_\u5e76\u53d1\u7f16\u7a0b(5)_\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1(\u4e8c):\u7ebf\u7a0bapi\u548c\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u670d\u52a1\u5668"},"content":{"rendered":"

\u524d\u8a00 \u00a0 \u00a0 \u00a0 \u00a0<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4ee5<\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf>(\u4ee5\u4e0b\u79f0\u201c\u672c\u4e66\u201d)\u5185\u5bb9\u4e3a\u57fa\u7840，\u5bf9\u7a0b\u5e8f\u7684\u6574\u4e2a\u8fc7\u7a0b\u8fdb\u884c\u68b3\u7406\u3002\u672c\u4e66\u5185\u5bb9\u5bf9\u6574\u4e2a\u8ba1\u7b97\u673a\u7cfb\u7edf\u505a\u4e86\u7cfb\u7edf\u6027\u5bfc\u5f15,\u6bcf\u90e8\u5206\u5185\u5bb9\u90fd\u662f\u5355\u72ec\u7684\u4e00\u95e8\u8bfe.\u5b66\u4e60\u6df1\u5ea6\u6839\u636e\u81ea\u5df1\u9700\u8981\u6765\u5b9a<\/p>\n

\u5f15\u5165<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u63a5\u7eed\u4e0a\u4e00\u7bc7\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf_\u5e76\u53d1\u7f16\u7a0b(4)_\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1(\u4e00):\u7ebf\u7a0b\u57fa\u7840-CSDN\u535a\u5ba2<\/p>\n

Posix\u7ebf\u7a0b\u7b80\u4ecb<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u6982\u5ff5:Posix\u7ebf\u7a0b\u662f\u5728C\u7a0b\u5e8f\u4e2d\u5904\u7406\u7ebf\u7a0b\u7684\u4e00\u4e2a\u6807\u51c6\u63a5\u53e3.\u800c\u4e14\u5728\u6240\u6709Linux\u7cfb\u7edf\u4e0a\u90fd\u53ef\u7528.Pthreads\u5b9a\u4e49\u4e86\u5927\u7ea660\u4e2a\u51fd\u6570,\u5141\u8bb8\u7a0b\u5e8f\u521b\u5efa,\u6740\u6b7b\u548c\u56de\u6536\u7ebf\u7a0b,\u4e0e\u5bf9\u7b49\u7ebf\u7a0b\u5b89\u5168\u5730\u5171\u4eab\u6570\u636e,\u8fd8\u53ef\u4ee5\u901a\u77e5\u5bf9\u7b49\u7ebf\u7a0b\u7cfb\u7edf\u72b6\u6001\u5730\u53d8\u5316.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —\u89e3\u8bfb:\u6709api\u53ef\u4ee5\u7528\u662f\u8ba9\u4eba\u5174\u594b\u7684,\u4ee3\u7801\u8981\u5199\u8d77\u6765.<\/p>\n

\u4e00\u4e2a\u7b80\u5355\u7684Pthreads\u7a0b\u5e8f<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e3b\u51fd\u6570(\u4ee3\u8868\u4e3b\u7ebf\u7a0b)\u521b\u5efa\u4e00\u4e2a\u5bf9\u7b49\u7ebf\u7a0b,\u7136\u540e\u7b49\u5f85\u4ed6\u7684\u7ec8\u6b62.\u5f53\u4e3b\u7ebf\u7a0b\u68c0\u6d4b\u5230\u5bf9\u7b49\u7ebf\u7a0b\u7ec8\u6b62\u540e,\u4ed6\u5c31\u901a\u8fc7\u8c03\u7528exit\u7ec8\u6b62\u8be5\u8fdb\u7a0b.<\/p>\n

hello.c\u5185\u5bb9<\/h4>\n

#include"csapp.h"
\nvoid *thread(void *vargp);<\/p>\n

int main(){
\n pthread_t tid;
\n Pthread_create(&tid,NULL,thread,NULL); \/\/\u751f\u6210\u5bf9\u7b49\u7ebf\u7a0b
\n Pthread_join(tid,NULL); \/\/\u7b49\u5f85\u5bf9\u7b49\u7ebf\u7a0b\u7ec8\u6b62
\n exit(0); \/\/\u7ec8\u6b62\u5f53\u524d\u8fdb\u7a0b\u4e2d\u6240\u6709\u7ebf\u7a0b
\n}<\/p>\n

void *thread(void *vargp){
\n printf("Hello,world!\\\\n");
\n return NULL;
\n} <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —<\/span>\u89e3\u8bfb:\u4ece\u793a\u4f8b\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa:\u7ebf\u7a0b\u548c\u4efb\u52a1\u662f\u5206\u79bb\u7684.\u4e3b\u7a0b\u5e8f\u53ea\u7ba1\u7ebf\u7a0b\u7684\u751f\u6210\u548c\u7ec8\u6b62.\u4efb\u52a1\u7531\u51fd\u6570thread\u7ed9\u51fa.\u4e8c\u8005\u4e4b\u95f4\u7684\u8054\u7cfb\u5728Pthread_create()\u51fd\u6570\u91cc,\u4e24\u4e2a\u53c2\u6570\u5206\u522b\u4f20\u5165\u4e86\u51fd\u6570\u540dthread\u548c\u4ee3\u8868\u53c2\u6570vargp\u7684NULL.—"\u5206\u79bb"\u662f\u6784\u5efa\u7a0b\u5e8f\u65f6\u5e38\u7528\u7684\u65b9\u6cd5<\/span>.\u4ed6\u7684\u4f18\u70b9\u662f\u4fbf\u4e8e\u6a21\u5757\u5316\u4ee3\u7801,\u4e5f\u4fbf\u4e8e\u5206\u5de5.<\/p>\n

\u4efb\u52a1\u51fd\u6570\u7684\u5206\u6790<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u672c\u4e66\u539f\u8bdd:\u7ebf\u7a0b\u7684\u4ee3\u7801\u548c\u672c\u5730\u6570\u636e\u88ab\u5c01\u88c5\u5728\u4e00\u4e2a\u7ebf\u7a0b\u4f8b\u7a0b(thread routine)\u4e2d.\u6b63\u5982\u7b2c\u4e8c\u884c\u91cc\u7684\u539f\u578b\u6240\u793a,\u6bcf\u4e2a\u7ebf\u7a0b\u4f8b\u7a0b\u90fd\u4ee5\u4e00\u4e2a\u901a\u7528\u6307\u9488\u4f5c\u4e3a\u8f93\u5165,\u5e76\u8fd4\u56de\u4e00\u4e2a\u901a\u7528\u6307\u9488.\u5982\u679c\u60f3\u4f20\u9012\u591a\u4e2a\u53c2\u6570\u7ed9\u7ebf\u7a0b\u4f8b\u7a0b,\u90a3\u4e48\u4f60\u5e94\u8be5\u5c06\u53c2\u6570\u653e\u5230\u4e00\u4e2a\u7ed3\u6784\u4e2d,\u5e76\u4f20\u9012\u4e00\u4e2a\u6307\u5411\u8be5\u7ed3\u6784\u7684\u6307\u9488.\u76f8\u4f3c\u5730,\u5982\u679c\u60f3\u8981\u7ebf\u7a0b\u4f8b\u7a0b\u8fd4\u56de\u591a\u4e2a\u53c2\u6570,\u4f60\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u6307\u5411\u4e00\u4e2a\u7ed3\u6784\u7684\u6307\u9488. —\u659c\u4f53\u5b57\u90e8\u5206\u6709\u89e3\u91ca<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —<\/span>\u89e3\u8bfb:\u901a\u7528\u6307\u9488\u53ef\u4ee5\u8868\u793a\u7684\u6570\u636e,\u7406\u8bba\u4e0a\u662f\u65e0\u9650\u7684.\u4ed6\u53ef\u4ee5\u6307\u5411\u4e00\u4e2a\u7ed3\u6784(\u6216\u7ed3\u6784\u6570\u7ec4),\u7ed3\u6784\u91cc\u9762\u518d\u6269\u5c55\u6570\u636e.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u91cc\u6709\u4e00\u4e2a\u7591\u95ee:"\u7ebf\u7a0b\u4f8b\u7a0b\u8fd4\u56de\u591a\u4e2a\u53c2\u6570,\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u6307\u5411\u4e00\u4e2a\u7ed3\u6784\u7684\u6307\u9488",\u95ee\u9898\u662f\u7ebf\u7a0b\u4f8b\u7a0b\u7684\u8fd4\u56de\u503c\u5728\u54ea\u91cc?\u4e3b\u51fd\u6570\u4e2d\u5e76\u6ca1\u6709\u63a5\u6536.<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u89e3\u51b3\u65b9\u6848:\u8f93\u5165\u53c2\u6570\u548c\u8fd4\u56de\u503c\u653e\u8fdb\u4e00\u4e2a\u7ed3\u6784(vargp)\u91cc.\u00a0 \u4e3e\u4e2a\u4f8b\u5b50,\u58f0\u660e\u4e00\u4e2a\u7ed3\u6784\u8868\u793a\u7ed3\u679c\u548c\u53c2\u6570<\/p>\n

typedef struct{
\n struct result* res;
\n struct argument* arg;
\n}res_arg; <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7ed9Pthread_create\u4f20\u7b2c4\u4e2a\u53c2\u6570\u65f6\u4f20\u5165struct res_arg*\u7c7b\u578b\u7684\u6570\u636e.\u5f62\u53c2\u548c\u8fd4\u56de\u503c\u7684\u6570\u636e\u5206\u522b\u7531struct result\u548cstruct argument\u5b9a\u4e49.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u79cd\u5199\u6cd5\u7684\u601d\u8def\u662f\u7528\u5f62\u53c2\u6307\u9488\u63a5\u6536\u51fd\u6570\u8fd4\u56de\u503c.\u7b14\u8005\u4ee5\u524d\u5199\u8fc7:\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf_\u7f51\u7edc\u7f16\u7a0b(4)_\u5957\u63a5\u5b57api-CSDN\u535a\u5ba2<\/p>\n

\u7ebf\u7a0bAPI\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/h3>\n

\u521b\u5efa\u7ebf\u7a0bpthread_create()\u00a0<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u51fd\u6570\u539f\u578b\u5982\u4e0b<\/p>\n

typedef void *(func)(void *);<\/p>\n

int pthread_create(pthread_t *tid,pthread_attr_t *attr,
\n func *f, void *arg); \/\/\u6210\u529f\u8fd4\u56de\u503c\u4e3a0,\u51fa\u9519\u4e3a\u975e0 <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0—<\/span>\u89e3\u8bfb:\u51fd\u6570\u7b49\u4e8e\u4efb\u52a1,\u7528\u51fd\u6570\u6307\u9488func\u8868\u793a,\u7136\u540e\u628a\u51fd\u6570\u6307\u9488\u548c\u53c2\u6570\u6307\u9488\u4f20\u5165pthread_create()\u51fd\u6570\u7684\u7b2c3\u4e2a\u548c\u7b2c4\u4e2a\u5f62\u53c2\u4e2d,\u8868\u793a\u51fd\u6570\u88ab\u653e\u5165\u7ebf\u7a0btid\u4e2d\u8fd0\u884c.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7b2c1\u4e2a\u53c2\u6570tid\u7406\u89e3\u4e3a\u751f\u6210\u4e00\u4e2a\u7ebf\u7a0bID.\u7ed3\u5408\u4e3b\u51fd\u6570\u6765\u770b:\u5b9a\u4e49\u4e00\u4e2apthread_t\u53d8\u91cf,\u4f20\u5165\u5730\u5740\u7ed9\u51fd\u6570.\u5f53pthread_create()\u8fd4\u56de\u65f6,\u53c2\u6570tid\u5305\u542b\u65b0\u521b\u5efa\u7ebf\u7a0b\u7684ID.—\u9ed1\u4f53\u5b57\u662f\u539f\u8bdd,\u4f50\u8bc1<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7b2c2\u4e2a\u53c2\u6570attr\u6539\u53d8\u65b0\u521b\u5efa\u7ebf\u7a0b\u7684\u9ed8\u8ba4\u5c5e\u6027.\u672c\u4e66\u8ba4\u4e3a\u6539\u53d8\u8fd9\u4e9b\u5c5e\u6027\u8d85\u51fa\u5b66\u4e60\u8303\u56f4,\u8c03\u7528\u65f6\u603b\u4f20\u5165NULL<\/p>\n

\u83b7\u5f97\u81ea\u5df1\u7684\u7ebf\u7a0bID\u51fd\u6570pthread_self()<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u51fd\u6570\u539f\u578b<\/p>\n

pthread_t pthread_self(void);
\n\/\/\u8fd4\u56de\u8c03\u7528\u8005\u7684\u7ebf\u7a0bID <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u663e\u7136\u83b7\u5f97\u81ea\u5df1\u7684\u7ebf\u7a0b\u5fc5\u987b\u5728\u751f\u6210\u7ebf\u7a0b\u53f7\u4e4b\u540e—\u5fc5\u987b\u5148\u8c03\u7528pthread_create()<\/p>\n

\u7ec8\u6b62\u7ebf\u7a0b<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e00\u4e2a\u7ebf\u7a0b\u7684\u7ec8\u6b62\u7684\u65b9\u5f0f:<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1.\u5f53\u9876\u5c42\u7684\u7ebf\u7a0b\u4f8b\u7a0b\u8fd4\u56de\u65f6,\u7ebf\u7a0b\u4f1a\u9690\u5f0f\u5730\u7ec8\u6b62. —\u4efb\u52a1\u6267\u884c\u540e\u6240\u5728\u7ebf\u7a0b\u81ea\u52a8\u7ec8\u6b62,\u4e0d\u9700\u8981\u5e72\u9884<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 2.\u901a\u8fc7\u8c03\u7528pthread_exit\u51fd\u6570,\u7ebf\u7a0b\u4f1a\u663e\u5f0f\u5730\u7ec8\u6b62.\u51fd\u6570\u539f\u578b\u5982\u4e0b:<\/p>\n

void pthread_exit(void *thread_return);
\n\/\/\u4e0d\u8fd4\u56de <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3.\u67d0\u4e2a\u5bf9\u7b49\u7ebf\u7a0b\u8c03\u7528Linux\u7684exit\u51fd\u6570,\u8be5\u51fd\u6570\u7ec8\u6b62\u8fdb\u7a0b\u4ee5\u53ca\u6240\u6709\u4e0e\u8be5\u8fdb\u7a0b\u76f8\u5173\u7684\u7ebf\u7a0b.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 4.\u53e6\u4e00\u4e2a\u5bf9\u7b49\u7ebf\u7a0b\u901a\u8fc7\u4ee5\u5f53\u524dID\u4f5c\u4e3a\u53c2\u6570\u8c03\u7528pthread_cancel\u51fd\u6570\u6765\u7ec8\u6b62\u5f53\u524d\u8fdb\u7a0b.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —<\/span>\u89e3\u8bfb:\u7b14\u8005\u8ba4\u4e3a\u4ee5\u4e0a\u65b9\u6cd5\u6ca1\u6709\u591a\u5c11\u5e94\u7528\u573a\u666f,<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6bd4\u5982\u7b2c4\u6761,\u8ba9\u4e00\u4e2a\u7ebf\u7a0b\u7ec8\u6b62\u53e6\u4e00\u4e2a\u7ebf\u7a0b,\u610f\u4e49\u4f55\u5728?\u7b2c3\u6761\u8c03\u7528exit\u51fd\u6570,\u76f8\u5f53\u4e8e\u5f3a\u5236\u9000\u51fa\u6240\u6709\u7ebf\u7a0b\u548c\u8fdb\u7a0b.\u7b2c2\u6761\u7531\u4e3b\u7ebf\u7a0b\u8c03\u7528\u540e\u7b49\u5f85\u5e76\u7ec8\u6b62,\u548c\u793a\u4f8b\u7a0b\u5e8f\u4e2d\u4e3b\u7ebf\u7a0b\u8c03\u7528exit\u7684\u610f\u601d\u662f\u76f8\u540c\u7684,\u591a\u4e86\u4e00\u4e2athread_return\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e9b\u6570\u636e,\u800c\u8fd9\u4e2a\u5de5\u4f5c\u53ef\u4ee5\u7559\u5230"\u56de\u6536\u5df2\u7ec8\u6b62\u7ebf\u7a0b\u7684\u8d44\u6e90"\u91cc\u53bb\u505a.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7efc\u4e0a\u6240\u8ff0,\u6682\u65f6\u4e0d\u7528\u591a\u770b,\u7528\u793a\u4f8b\u91cc\u7684\u5199\u6cd5\u5373\u53ef.\u5982\u679c\u6709\u9047\u5230\u76f8\u5e94\u573a\u666f\u518d\u6765\u67e5.<\/p>\n

\u56de\u6536\u5df2\u7ec8\u6b62\u7ebf\u7a0b\u7684\u8d44\u6e90pthread_join()\u51fd\u6570<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u51fd\u6570\u539f\u578b<\/p>\n

int pthread_join(pthread_t tid,void **thread_return);
\n\/\/\u6210\u529f\u8fd4\u56de0,\u51fa\u9519\u5219\u4e3a\u975e0 <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —<\/span>\u89e3\u8bfb:\u51fd\u6570\u4f1a\u963b\u585e,\u76f4\u5230\u7ebf\u7a0b\u7ec8\u6b62,\u56de\u6536\u5df2\u7ec8\u6b62\u7ebf\u7a0b\u7684\u8d44\u6e90.\u6709\u4e24\u70b9\u8bf4\u660e<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1>\u5fc5\u987b\u6307\u5b9a\u7ebf\u7a0bID,\u8fd9\u70b9\u548c\u8fdb\u7a0b\u4e2d\u7684wait\u51fd\u6570\u4e0d\u4e00\u6837,\u5148\u6267\u884c\u5b8c\u7684\u5b50\u8fdb\u7a0b\u8c03\u7528wait\u00a0 \u00a0<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a02>\u5c06\u7ebf\u7a0b\u4f8b\u7a0b\u8fd4\u56de\u7684\u901a\u7528(void *)\u6307\u9488\u8d4b\u503c\u4e3athread_return\u6307\u5411\u7684\u4f4d\u7f6e.\u8fd9\u91cc\u89e3\u51b3\u4e86\u4e0a\u9762\u6807\u9898"\u4efb\u52a1\u51fd\u6570\u7684\u5206\u6790"\u63d0\u51fa\u7684\u7591\u95ee:\u7ebf\u7a0b\u4efb\u52a1\u8fd0\u884c\u7684\u8fd4\u56de\u503c\u53bb\u4e86\u54ea\u91cc?\u7ebf\u7a0b\u8fd4\u56de\u7684\u7ed3\u6784\u6307\u9488,\u88ab\u53e6\u4e00\u4e2a\u53cc\u91cd\u6307\u9488\u63a5\u6536<\/span>.<\/p>\n

\u5206\u79bb\u7ebf\u7a0bpthread_detach()\u51fd\u6570<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7ebf\u7a0b\u5206\u79bbdetach\u548c\u7ebf\u7a0b\u7ed3\u5408join\u662f\u76f8\u5bf9\u7684.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u672c\u4e66\u539f\u8bdd:\u4e00\u4e2a\u53ef\u7ed3\u5408\u7684\u7ebf\u7a0b\u80fd\u591f\u88ab\u5176\u4ed6\u7ebf\u7a0b\u6536\u56de\u548c\u6740\u6b7b.\u5728\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536\u4e4b\u524d,\u4ed6\u7684\u5185\u5b58\u8d44\u6e90(\u4f8b\u5982\u6808)\u662f\u4e0d\u91ca\u653e\u7684.\u76f8\u53cd,\u4e00\u4e2a\u5206\u79bb\u7684\u7ebf\u7a0b\u662f\u4e0d\u80fd\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536\u6216\u6740\u6b7b,\u4ed6\u7684\u5185\u5b58\u8d44\u6e90\u5728\u4ed6\u7ec8\u6b62\u65f6\u7531\u7cfb\u7edf\u81ea\u52a8\u91ca\u653e.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u51fd\u6570\u539f\u578b<\/p>\n

int pthread_detach(pthread_t tid);
\n\/\/\u82e5\u6210\u529f\u8fd4\u56de0,\u51fa\u9519\u8fd4\u56de\u975e0 <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u540c\u65f6,\u7ebf\u7a0b\u80fd\u591f\u4ee5pthread_self()\u4e3a\u53c2\u6570\u8c03\u7528\u6765\u5206\u79bb\u81ea\u5df1.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 —<\/span>\u89e3\u8bfb:\u7ebf\u7a0b\u8d44\u6e90\u9762\u4e34\u91ca\u653e\u95ee\u9898,join\u548cdetach\u4e8c\u9009\u4e00.\u4e24\u8005\u5bf9\u6bd4\u5982\u4e0b:<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0join\u663e\u5f0f\u91ca\u653e\u8d44\u6e90,\u5e76\u63a5\u6536\u7ebf\u7a0b\u4efb\u52a1\u8fd4\u56de\u503c(\u4e5f\u662f\u663e\u5f0f).<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0detach\u81ea\u52a8\u91ca\u653e\u8d44\u6e90,\u6682\u65f6\u6ca1\u770b\u89c1\u63a5\u6536\u7ebf\u7a0b\u4efb\u52a1\u8fd4\u56de\u503c\u7684\u5730\u65b9(\u5982\u679c\u9700\u8981\u63a5\u6536,\u53ef\u4ee5\u628a\u8f93\u5165\u53c2\u6570\u548c\u8fd4\u56de\u503c\u653e\u8fdb\u4e00\u4e2a\u7ed3\u6784(vargp)\u91cc),\u5199\u6cd5\u4e0adetach\u76f8\u5bf9\u7b80\u5355\u4e00\u70b9(\u89c1\u672c\u4e66P695"\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u670d\u52a1\u5668"\u4ee3\u7801)<\/p>\n

\u521d\u59cb\u5316\u7ebf\u7a0bpthread_once()\u51fd\u6570(\u7565)<\/h4>\n

\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1echo\u670d\u52a1\u5668\u00a0 \u00a0<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0\u672c\u4e66P695\u4e2d\u95f4echoservert.c,\u8fd9\u91cc\u4ee3\u7801\u5728\u4e4b\u524d\u57fa\u7840\u4e0a\u7a0d\u4f5c\u4e86\u4fee\u6539.\u8fd8\u662f\u4e0d\u96be\u770b\u61c2,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u6ce8\u610f<\/span>:<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 1>\u7b2c21\u884c\u4ee3\u7801\u53ef\u4ee5\u548c\u7b2c8\u884c\u5408\u5e76,\u5199\u5230\u7b2c8\u884c<\/p>\n

int *connfdp=Malloc(sizeof(int)); <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 2>\u7b2c22\u884c,\u7b2c23\u884c\u548c\u7b2c30\u884c\u7ed3\u5408\u770b,\u628a\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26connfd(int\u7c7b\u578b)\u5148\u4f5c\u4e3a\u6307\u9488\u4f20\u5165pthread_create,\u7136\u540e\u5728thread\u51fd\u6570\u4e2d,\u5148\u5f3a\u8f6c\u4e3aint\u578b\u6307\u9488,\u518d\u63d0\u53d6\u51fa\u63cf\u8ff0\u7b26\u7684\u5199\u6cd5.<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 3>\u7b2c31\u884c\u7ebf\u7a0b\u8d44\u6e90\u56de\u6536\u8c03\u7528\u4e86detach()\u51fd\u6570,\u5728\u4efb\u52a1\u4e2d\u5148\u5206\u79bb\u81ea\u5df1,\u81ea\u52a8\u56de\u6536\u8d44\u6e90<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 4>\u540e\u9762\u8bb2\u4e86\u51fa\u9519\u7684\u539f\u56e0\u662f"\u7ade\u4e89"<\/p>\n

\u5c0f\u7ed3<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7ebf\u7a0bapi\u7684\u4e00\u70b9\u7406\u89e3<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb883\u6b21\uff0c\u70b9\u8d5e26\u6b21\uff0c\u6536\u85cf25\u6b21\u3002\u4ee5(\u4ee5\u4e0b\u79f0\u201c\u672c\u4e66\u201d)\u5185\u5bb9\u4e3a\u57fa\u7840\uff0c\u5bf9\u7a0b\u5e8f\u7684\u6574\u4e2a\u8fc7\u7a0b\u8fdb\u884c\u68b3\u7406\u3002\u672c\u4e66\u5185\u5bb9\u5bf9\u6574\u4e2a\u8ba1\u7b97\u673a\u7cfb\u7edf\u505a\u4e86\u7cfb\u7edf\u6027\u5bfc\u5f15,\u6bcf\u90e8\u5206\u5185\u5bb9\u90fd\u662f\u5355\u72ec\u7684\u4e00\u95e8\u8bfe.\u5b66\u4e60\u6df1\u5ea6\u6839\u636e\u81ea\u5df1\u9700\u8981\u6765\u5b9aPosix\u7ebf\u7a0b\u662f\u5728C\u7a0b\u5e8f\u4e2d\u5904\u7406\u7ebf\u7a0b\u7684\u4e00\u4e2a\u6807\u51c6\u63a5\u53e3.\u800c\u4e14\u5728\u6240\u6709Linux\u7cfb\u7edf\u4e0a\u90fd\u53ef\u7528.Pthreads\u5b9a\u4e49\u4e86\u5927\u7ea660\u4e2a\u51fd\u6570,\u5141\u8bb8\u7a0b\u5e8f\u521b\u5efa,\u6740\u6b7b\u548c\u56de\u6536\u7ebf\u7a0b,\u4e0e\u5bf9\u7b49\u7ebf\u7a0b\u5b89\u5168\u5730\u5171\u4eab\u6570\u636e,\u8fd8\u53ef\u4ee5\u901a\u77e5\u5bf9\u7b49\u7ebf\u7a0b\u7cfb\u7edf\u72b6\u6001\u5730\u53d8\u5316—\u89e3\u8bfb:\u6709api\u53ef\u4ee5\u7528\u662f\u8ba9\u4eba\u5174\u594b\u7684,\u4ee3\u7801\u8981\u5199\u8d77\u6765.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,3278,396,3011],"topic":[],"class_list":["post-37820","post","type-post","status-publish","format-standard","hentry","category-server","tag-43","tag-3278","tag-396","tag-3011"],"yoast_head":"\n\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf_\u5e76\u53d1\u7f16\u7a0b(5)_\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1(\u4e8c):\u7ebf\u7a0bapi\u548c\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u670d\u52a1\u5668 - 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