\u4e00\u3001\u7ebf\u7a0b\u7684\u521b\u5efa<\/p>\n
\u00a0<\/p>\n
\u7ebf\u7a0b\u7528\u00a0pthread_create\u00a0\u6765\u521b\u5efa，\u8fd9\u662f\u6700\u57fa\u7840\u7684\u63a5\u53e3\u3002<\/p>\n
\u00a0<\/p>\n
int pthread_create(pthread_t *thread, const pthread_attr_t *attr,<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0void *(*start_routine) (void *), void *arg);<\/p>\n
\u00a0<\/p>\n
\u56db\u4e2a\u53c2\u6570：thread\u4fdd\u5b58\u7ebf\u7a0bID，attr\u662f\u7ebf\u7a0b\u5c5e\u6027（\u4f20NULL\u7528\u9ed8\u8ba4），start_routine\u662f\u7ebf\u7a0b\u8981\u6267\u884c\u7684\u4efb\u52a1\u51fd\u6570，arg\u662f\u4f20\u7ed9\u4efb\u52a1\u51fd\u6570\u7684\u53c2\u6570\u3002\u6210\u529f\u8fd4\u56de0，\u5931\u8d25\u8fd4\u56de\u9519\u8bef\u7801\u3002<\/p>\n
\u00a0<\/p>\n
\u6709\u4e24\u4e2a\u6ce8\u610f\u70b9：\u7f16\u8bd1\u65f6\u5fc5\u987b\u52a0\u00a0-pthread\u00a0\u94fe\u63a5\u7ebf\u7a0b\u5e93；\u521b\u5efa\u7ebf\u7a0b\u7684\u4e3b\u8fdb\u7a0b\u4e0d\u80fd\u5148\u4e8e\u7ebf\u7a0b\u7ed3\u675f，\u5426\u5219\u7ebf\u7a0b\u76f4\u63a5\u5c31\u6ca1\u4e86\u3002<\/p>\n
\u00a0<\/p>\n
\u5199\u4e2a\u6700\u7b80\u5355\u7684\u4f8b\u5b50：<\/p>\n
\u00a0<\/p>\n
#include <stdio.h><\/p>\n
#include <pthread.h><\/p>\n
\u00a0<\/p>\n
void *task(void *arg)<\/p>\n
{<\/p>\n
\u00a0 \u00a0 printf("\u5b50\u7ebf\u7a0b\u8fd0\u884c\u4e2d\\\\n");<\/p>\n
\u00a0 \u00a0 pthread_exit(NULL);<\/p>\n
}<\/p>\n
\u00a0<\/p>\n
int main(void)<\/p>\n
{<\/p>\n
\u00a0 \u00a0 pthread_t tid;<\/p>\n
\u00a0 \u00a0 pthread_create(&tid, NULL, task, NULL);<\/p>\n
\u00a0 \u00a0 sleep(1); \/\/ \u4e3b\u7ebf\u7a0b\u4e0d\u80fd\u5148\u7ed3\u675f<\/p>\n
\u00a0 \u00a0 return 0;<\/p>\n
}<\/p>\n
\u00a0<\/p>\n
\u4e8c\u3001\u7ebf\u7a0b\u9000\u51fa\u4e0e\u8d44\u6e90\u56de\u6536<\/p>\n
\u00a0<\/p>\n
\u7ebf\u7a0b\u9000\u51fa\u6709\u4e09\u79cd\u65b9\u5f0f：\u7ebf\u7a0b\u51fd\u6570\u6267\u884c\u5b8creturn\u3001\u6240\u5728\u8fdb\u7a0b\u7ed3\u675f\u3001\u8c03\u7528\u00a0pthread_exit\u00a0\u4e3b\u52a8\u9000\u51fa\u3002<\/p>\n
\u00a0<\/p>\n
\u9000\u51fa\u4e4b\u540e\u6d89\u53ca\u8d44\u6e90\u56de\u6536，\u8fd9\u91cc\u5206\u4e24\u79cd\u5c5e\u6027\u3002<\/p>\n
\u00a0<\/p>\n
\u5206\u79bb\u5c5e\u6027：\u7528\u00a0pthread_detach(tid)\u00a0\u8bbe\u7f6e，\u7ebf\u7a0b\u7ed3\u675f\u540e\u7531\u64cd\u4f5c\u7cfb\u7edf\u81ea\u52a8\u56de\u6536，\u4e0d\u9700\u8981\u5176\u4ed6\u7ebf\u7a0b\u7ba1\u3002\u9002\u5408\u5176\u4ed6\u7ebf\u7a0b\u6ca1\u673a\u4f1a\u56de\u6536\u5b83\u7684\u573a\u666f\u3002<\/p>\n
\u00a0<\/p>\n
\u975e\u5206\u79bb\u5c5e\u6027：\u8fd9\u662f\u9ed8\u8ba4\u5c5e\u6027，\u7ebf\u7a0b\u7ed3\u675f\u540e\u5fc5\u987b\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536，\u7528\u00a0pthread_join\u00a0\u3002<\/p>\n
\u00a0<\/p>\n
int pthread_join(pthread_t thread, void **retval);<\/p>\n
\u00a0<\/p>\n
\u963b\u585e\u7b49\u5f85\u6307\u5b9a\u7ebf\u7a0b\u7ed3\u675f\u5e76\u56de\u6536\u8d44\u6e90，retval\u7528\u6765\u63a5\u6536\u7ebf\u7a0b\u9000\u51fa\u72b6\u6001，\u4e0d\u5173\u5fc3\u5c31\u4f20NULL\u3002\u6210\u529f\u8fd4\u56de0，\u5931\u8d25\u8fd4\u56de\u975e0\u3002<\/p>\n
\u00a0<\/p>\n
\u4e09\u3001\u7ebf\u7a0b\u7684\u540c\u6b65\u4e0e\u4e92\u65a5<\/p>\n
\u00a0<\/p>\n
\u7ebf\u7a0b\u4e4b\u95f4\u901a\u4fe1\u5f88\u65b9\u4fbf，\u5168\u5c40\u53d8\u91cf\u3001\u961f\u5217\u3001pthread_create\u4f20\u53c2\u3001\u6761\u4ef6\u53d8\u91cf\u90fd\u53ef\u4ee5\u3002\u4f46\u95ee\u9898\u4e5f\u6765\u4e86\u2014\u2014\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u540c\u4e00\u4e2a\u5171\u4eab\u8d44\u6e90，\u4f1a\u4ea7\u751f\u7ade\u4e89\u3002<\/p>\n
\u00a0<\/p>\n
\u8fd9\u91cc\u6709\u4e24\u4e2a\u6982\u5ff5\u8981\u5206\u6e05：<\/p>\n
\u00a0<\/p>\n
\u4e34\u754c\u8d44\u6e90：\u591a\u4e2a\u7ebf\u7a0b\u80fd\u540c\u65f6\u8bbf\u95ee\u7684\u533a\u57df，\u6bd4\u5982\u5168\u5c40\u53d8\u91cf\u3001\u5168\u5c40\u961f\u5217\u3001\u6587\u4ef6\u3001\u6570\u636e\u5e93<\/p>\n
\u4e34\u754c\u533a：\u8bbf\u95ee\u4e34\u754c\u8d44\u6e90\u7684\u90a3\u6bb5\u4ee3\u7801<\/p>\n
\u00a0<\/p>\n
\u89e3\u51b3\u529e\u6cd5\u662f\u4e92\u65a5\u9501，\u4fdd\u8bc1\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u8fdb\u5165\u4e34\u754c\u533a\u3002<\/p>\n
\u00a0<\/p>\n
\u4e92\u65a5\u9501\u7684\u4f7f\u7528\u6d41\u7a0b：<\/p>\n
\u00a0<\/p>\n
1.\u00a0\u521b\u5efa\u9501\u5bf9\u8c61：\u00a0pthread_mutex_t\u00a0<\/p>\n
2.\u00a0\u521d\u59cb\u5316：\u00a0pthread_mutex_init()\u00a0<\/p>\n
3.\u00a0\u8fdb\u5165\u4e34\u754c\u533a\u524d\u52a0\u9501：\u00a0pthread_mutex_lock()\u00a0<\/p>\n
4.\u00a0\u51fa\u4e34\u754c\u533a\u89e3\u9501：\u00a0pthread_mutex_unlock()\u00a0<\/p>\n
5.\u00a0\u7528\u5b8c\u9500\u6bc1：\u00a0pthread_mutex_destroy()\u00a0<\/p>\n
\u00a0<\/p>\n
int pthread_mutex_init(pthread_mutex_t *restrict mutex,<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0const pthread_mutexattr_t *restrict attr);<\/p>\n
\u00a0<\/p>\n
\u521d\u59cb\u5316\u9501，mutex\u662f\u9501\u5bf9\u8c61\u5730\u5740，attr\u4f20NULL\u7528\u9ed8\u8ba4\u5c5e\u6027\u3002<\/p>\n
\u00a0<\/p>\n
\u7ecf\u5178\u7684\u5356\u7968\u4f8b\u5b50，\u4e09\u4e2a\u7a97\u53e3\u535610\u5f20\u7968，\u4e0d\u52a0\u9501\u4f1a\u8d85\u5356：<\/p>\n
\u00a0<\/p>\n
#include <stdio.h><\/p>\n
#include <pthread.h><\/p>\n
#include <unistd.h><\/p>\n
\u00a0<\/p>\n
int ticket = 10;<\/p>\n
pthread_mutex_t mutex;<\/p>\n
\u00a0<\/p>\n
void *sell(void *arg)<\/p>\n
{<\/p>\n
\u00a0 \u00a0 char *win = (char *)arg;<\/p>\n
\u00a0 \u00a0 while (1)<\/p>\n
\u00a0 \u00a0 {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 pthread_mutex_lock(&mutex);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 if (ticket > 0)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 printf("%s \u5356\u51fa\u7b2c %d \u5f20\\\\n", win, ticket);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ticket–;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 else<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 pthread_mutex_unlock(&mutex);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 break;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 pthread_mutex_unlock(&mutex);<\/p>\n
\u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 pthread_exit(NULL);<\/p>\n
}<\/p>\n
\u00a0<\/p>\n
int main(void)<\/p>\n
{<\/p>\n
\u00a0 \u00a0 pthread_t t1, t2, t3;<\/p>\n
\u00a0 \u00a0 pthread_mutex_init(&mutex, NULL);<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 pthread_create(&t1, NULL, sell, "\u7a97\u53e31");<\/p>\n
\u00a0 \u00a0 pthread_create(&t2, NULL, sell, "\u7a97\u53e32");<\/p>\n
\u00a0 \u00a0 pthread_create(&t3, NULL, sell, "\u7a97\u53e33");<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 sleep(2);<\/p>\n
\u00a0 \u00a0 pthread_mutex_destroy(&mutex);<\/p>\n
\u00a0 \u00a0 return 0;<\/p>\n
}<\/p>\n
\u00a0\u6700\u540e\u662f\u7ebf\u7a0b\u540c\u6b65\u3002\u4e92\u65a5\u89e3\u51b3\u7684\u662f\u6392\u4ed6\u8bbf\u95ee，\u540c\u6b65\u89e3\u51b3\u7684\u662f\u6267\u884c\u987a\u5e8f\u2014\u2014\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u5728\u6267\u884c\u67d0\u4e9b\u4efb\u52a1\u65f6\u6709\u5148\u540e\u5173\u7cfb\u3002\u5b9e\u73b0\u540c\u6b65\u7684\u65b9\u6cd5\u662f\u4fe1\u53f7\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u7ebf\u7a0b\u7684\u521b\u5efa\u7ebf\u7a0b\u7528\u00a0pthread_create\u00a0\u6765\u521b\u5efa，\u8fd9\u662f\u6700\u57fa\u7840\u7684\u63a5\u53e3\u3002int pthread_create(pthread_t *thread, const pthread_attr_t *attr,void *(*start_routine) (void *), void *arg);\u56db\u4e2a\u53c2\u6570：thread\u4fdd\u5b58\u7ebf\u7a0bID，attr\u662f\u7ebf\u7a0b\u5c5e\u6027（\u4f20NULL\u7528\u9ed8\u8ba4），start_routin<\/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":[58,371,305,427],"topic":[],"class_list":["post-96526","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-371","tag-305","tag-427"],"yoast_head":"\n