{"id":57768,"date":"2025-08-15T19:30:25","date_gmt":"2025-08-15T11:30:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/57768.html"},"modified":"2025-08-15T19:30:25","modified_gmt":"2025-08-15T11:30:25","slug":"linux%e8%bd%af%e4%bb%b6%e7%bc%96%e7%a8%8b-%e8%bf%9b%e7%a8%8b%ef%bc%882%ef%bc%89%e5%8f%8a%e7%ba%bf%e7%a8%8b%ef%bc%881%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/57768.html","title":{"rendered":"Linux\u8f6f\u4ef6\u7f16\u7a0b-\u8fdb\u7a0b\uff082\uff09\u53ca\u7ebf\u7a0b\uff081\uff09"},"content":{"rendered":"

1.\u8fdb\u7a0b\u56de\u6536\u8d44\u6e90\u7a7a\u95f4<\/h2>\n

（1）wait\u51fd\u6570<\/h3>\n

\u5934\u6587\u4ef6：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0#include <sys\/types.h>
\n\u00a0 \u00a0 \u00a0 \u00a0#include <sys\/wait.h><\/p>\n

\u51fd\u6570\u63a5\u53e3：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0pid_t wait(int *wstatus);
\n\u00a0 \u00a0 \u00a0 \u00a0\u529f\u80fd：\u963b\u585e\u7b49\u5f85\u56de\u6536\u5b50\u8fdb\u7a0b\u7684\u8d44\u6e90\u7a7a\u95f4
\n\u00a0 \u00a0 \u00a0 \u00a0\u53c2\u6570：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0wstatus ：\u4fdd\u5b58\u5b50\u8fdb\u7a0b\u6d88\u4ea1\u72b6\u6001\u7684\u53d8\u91cf\u5730\u5740
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0NULL：\u4e0d\u4fdd\u5b58\u5b50\u8fdb\u7a0b\u9000\u51fa\u7684\u72b6\u6001
\n\u00a0 \u00a0 \u00a0 \u00a0\u8fd4\u56de\u503c：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u6210\u529f：\u8fd4\u56de\u56de\u6536\u5230\u7684\u5b50\u8fdb\u7a0b\u7684PID\u53f7
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u5931\u8d25：-1
\n\u00a0 \u00a0 \u00a0 \u00a0 wait(NULL);<\/p>\n

\u57fa\u672c\u601d\u60f3：<\/p>\n

\u8fdb\u7a0b\u540c\u6b65：\u5141\u8bb8\u7236\u8fdb\u7a0b\u6682\u505c\u6267\u884c，\u76f4\u5230\u5176\u5b50\u8fdb\u7a0b\u7ec8\u6b62\u6216\u6539\u53d8\u72b6\u6001<\/p>\n

\u8d44\u6e90\u56de\u6536：\u786e\u4fdd\u5b50\u8fdb\u7a0b\u7ec8\u6b62\u540e\u5176\u8d44\u6e90\u88ab\u6b63\u786e\u91ca\u653e（\u9632\u6b62"\u50f5\u5c38\u8fdb\u7a0b"）<\/p>\n

\u72b6\u6001\u83b7\u53d6：\u8ba9\u7236\u8fdb\u7a0b\u80fd\u591f\u83b7\u53d6\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u72b6\u6001\u4fe1\u606f<\/p>\n

#include <sys\/types.h>
\n#include <unistd.h>
\n#include <stdio.h>
\n#include <stdlib.h>
\n#include <sys\/wait.h><\/p>\n

int main(int argc, char const *argv[])
\n{
\n int *p = malloc(sizeof(int));
\n *p = 100;
\n pid_t pid = fork();<\/p>\n

if(pid > 0)
\n {
\n int wstatus;
\n pid_t pidtmp = wait(NULL);
\n printf("pidtmp = %d\\\\n", pidtmp);
\n \/*
\n if (WIFEXITED(wstatus))
\n{
\nprintf("%d over normall, state : %d\\\\n", pidtmp, WEXITSTATUS(wstatus));
\n}
\nelse if (WIFSIGNALED(wstatus))
\n{
\nprintf("%d ober by signal,signal num = %d\\\\n", pidtmp, WTERMSIG(wstatus));
\n}
\n *\/
\n while(1)
\n {
\n printf("ppid = %d, pid = %d, *p = %d\\\\n",getpid(), pid, *p);
\n sleep(1);
\n }<\/p>\n

}
\n else if(0 == pid)
\n {
\n int i = 10;
\n while(i–)
\n {
\n printf("pid = %d, ppid = %d, *p = %d\\\\n", getpid(), getppid(), *p);
\n sleep(1);
\n }<\/p>\n

}
\n else
\n {
\n perror("fork error");
\n exit(0);
\n }
\n return 0;
\n}<\/p>\n

（2）waitpid\u51fd\u6570<\/h3>\n

\u51fd\u6570\u63a5\u53e3：<\/p>\n

pid_t waitpid(pid_t pid, int *status, int options);
\n\u00a0\u00a0 \u00a0\u529f\u80fd：\u56de\u6536\u6307\u5b9a\u8fdb\u7a0b\u7684\u8d44\u6e90
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u548cwait\u529f\u80fd\u76f8\u4f3c，\u6bd4wait\u66f4\u7075\u6d3b
\n\u00a0\u00a0 \u00a0\u53c2\u6570：
\n\u00a0\u00a0 \u00a0pid：
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0<-1 \u56de\u6536\u6307\u5b9a\u8fdb\u7a0b\u7ec4\u5185\u7684\u4efb\u610f\u5b50\u8fdb\u7a0b （-100.\u7b49\u5f85GID=100\u7684\u8fdb\u7a0b\u7ec4\u4e2d\u7684\u4efb\u610f\u5b50\u8fdb\u7a0b）
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0-1 \u56de\u6536\u4efb\u610f\u5b50\u8fdb\u7a0b，\u7ec4\u5185\u5916
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a00 \u56de\u6536\u548c\u5f53\u524d\u8c03\u7528waitpid\u4e00\u4e2a\u7ec4\u7684\u6240\u6709\u5b50\u8fdb\u7a0b，\u7ec4\u5185\u00a0
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0> 0 \u56de\u6536\u6307\u5b9aID\u7684\u5b50\u8fdb\u7a0b
\n\u00a0\u00a0 \u00a0 status \u5b50\u8fdb\u7a0b\u9000\u51fa\u65f6\u5019\u7684\u72b6\u6001，
\n\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u5982\u679c\u4e0d\u5173\u6ce8\u9000\u51fa\u72b6\u6001\u7528NULL；
\n\u00a0\u00a0 \u00a0 options \u9009\u9879：
\n\u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a00 \u00a0\u8868\u793a\u56de\u6536\u8fc7\u7a0b\u4f1a\u963b\u585e\u7b49\u5f85
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0WNOHANG \u8868\u793a\u975e\u963b\u585e\u6a21\u5f0f\u56de\u6536\u8d44\u6e90\u3002
\n\u00a0\u00a0 \u00a0\u8fd4\u56de\u503c：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u6210\u529f \u8fd4\u56de\u63a5\u6536\u8d44\u6e90\u7684\u5b50\u8fdb\u7a0bpid
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u5931\u8d25 \u00a0-1
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u8bbe\u5b9a\u4e3a\u975e\u963b\u585e\u4e14\u6ca1\u6709\u56de\u6536\u5230\u5b50\u8fdb\u7a0b\u8fd4\u56de0\u00a0<\/p>\n

（3）\u5b50\u8fdb\u7a0b\u8d44\u6e90\u7a7a\u95f4\u56de\u6536\u7b56\u7565<\/h3>\n

1. wait\u963b\u585e\u56de\u6536：\u4e00\u822c\u60c5\u51b5\u4e0b，\u7236\u8fdb\u7a0b\u4e13\u95e8\u8d1f\u8d23\u8d44\u6e90\u56de\u6536；
\n2. waitpid\u975e\u963b\u585e\u65b9\u5f0f\u56de\u6536：\u642d\u914d\u8f6e\u8be2\u65b9\u5f0f\u56de\u6536\u3002
\n3. \u4e0d\u56de\u6536：\u5b50\u8fdb\u7a0b\u7684\u4efb\u52a1\u9700\u8981\u4e00\u76f4\u6267\u884c
\n4. \u5f02\u6b65\u56de\u6536：\u5f53\u5b50\u8fdb\u7a0b\u7ed3\u675f\u65f6\u901a\u77e5\u7236\u8fdb\u7a0b\u8fdb\u884c\u56de\u6536<\/p>\n

2.\u00a0 exec : \u51fd\u6570\u65cf<\/h2>\n

（1）\u57fa\u672c\u6982\u5ff5<\/h3>\n

\u5728\u4e00\u4e2a\u8fdb\u7a0b\u91cc\u9762\u6267\u884c\u53e6\u5916\u4e00\u4e2a\u6587\u4ef6（\u53ef\u6267\u884c\u6587\u4ef6）：
\n\u672c\u8d28：\u5c06\u6587\u672c\u53bb\u7684\u6307\u4ee4\u4ee3\u7801\u66ff\u6362\u6210exec\u8981\u6267\u884c\u7684\u6587\u4ef6\u7684\u6307\u4ee4\u3002<\/p>\n

\u7b97\u6cd5\u601d\u60f3：<\/p>\n<\/p>\n

\u4e0d\u521b\u5efa\u65b0\u8fdb\u7a0b：<\/p>\n

\u4e0e fork() \u4e0d\u540c，exec \u4e0d\u4f1a\u521b\u5efa\u65b0\u8fdb\u7a0b，\u53ea\u662f\u66ff\u6362\u5f53\u524d\u8fdb\u7a0b\u7684\u5185\u5bb9<\/p>\n

\u53c2\u6570\u4f20\u9012\u591a\u6837\u6027：<\/p>\n

\u5217\u8868\u5f62\u5f0f（execl, execlp, execle）：\u4ee5 NULL \u7ed3\u5c3e\u7684\u53ef\u53d8\u53c2\u6570\u5217\u8868<\/p>\n

\u6570\u7ec4\u5f62\u5f0f（execv, execvp, execvpe）：\u901a\u8fc7\u5b57\u7b26\u4e32\u6570\u7ec4\u4f20\u9012\u53c2\u6570<\/p>\n\n\u51fd\u6570\u5173\u952e\u7279\u70b9<\/tr>\n\n\n\n\n\n\n\n
execl<\/td>\n\u8def\u5f84+\u53c2\u6570\u5217\u8868\u5f62\u5f0f，\u9700\u8981\u5b8c\u6574\u8def\u5f84<\/td>\n<\/tr>\n
execlp<\/td>\n\u6587\u4ef6\u540d+\u53c2\u6570\u5217\u8868\u5f62\u5f0f，\u4f1a\u5728 PATH \u73af\u5883\u53d8\u91cf\u4e2d\u67e5\u627e\u53ef\u6267\u884c\u6587\u4ef6<\/td>\n<\/tr>\n
execle<\/td>\n\u8def\u5f84+\u53c2\u6570\u5217\u8868+\u81ea\u5b9a\u4e49\u73af\u5883\u53d8\u91cf\u5f62\u5f0f<\/td>\n<\/tr>\n
execv<\/td>\n\u8def\u5f84+\u53c2\u6570\u6570\u7ec4\u5f62\u5f0f，\u9700\u8981\u5b8c\u6574\u8def\u5f84<\/td>\n<\/tr>\n
execvp<\/td>\n\u6587\u4ef6\u540d+\u53c2\u6570\u6570\u7ec4\u5f62\u5f0f，\u4f1a\u5728 PATH \u73af\u5883\u53d8\u91cf\u4e2d\u67e5\u627e\u53ef\u6267\u884c\u6587\u4ef6<\/td>\n<\/tr>\n
execvpe<\/td>\n\u6587\u4ef6\u540d+\u53c2\u6570\u6570\u7ec4+\u81ea\u5b9a\u4e49\u73af\u5883\u53d8\u91cf\u5f62\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

（2）\u51fd\u6570\u63a5\u53e3<\/h3>\n

\u00a0int execl(const char *path, const char *arg, …\u00a0 \u00a0\/* (char \u00a0*) NULL *\/);
\n\u00a0 \u00a0 \u00a0 \u00a0\u53c2\u6570：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0path：\u8981\u6267\u884c\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8def\u5f84\u548c\u540d\u79f0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0arg：\u6267\u884c\u8be5\u53ef\u6267\u884c\u6587\u4ef6\u65f6\u9700\u8981\u4f20\u9012\u7684\u53c2\u6570
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 NULL ：\u53c2\u6570\u4f20\u9012\u7ed3\u675f\u6807\u5fd7
\n\u00a0 \u00a0 \u00a0 \u00a0\u8fd4\u56de\u503c：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u51fa\u9519：-1
\n\u00a0 \u00a0 \u00a0<\/p>\n

\u00a0int execlp(const char *file, const char *arg, …\u00a0 \u00a0\/* (char \u00a0*) NULL *\/);
\n\u00a0 \u00a0 \u00a0 \u00a0\u529f\u80fd：\u4ecePATH\u6307\u5b9a\u7684\u7cfb\u7edf\u8def\u5f84\u4e0b\u5bfb\u627e\u8be5\u53ef\u6267\u884c\u6587\u4ef6
\n\u00a0 \u00a0 \u00a0 \u00a0\u53c2\u6570：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 file：\u9700\u8981\u6267\u884c\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u540d\u79f0（\u7cfb\u7edf\u8def\u5f84\u4e0b\u5df2\u6709\u7684\u6587\u4ef6）
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0arg ： \u6267\u884c\u8be5\u53ef\u6267\u884c\u6587\u4ef6\u65f6\u9700\u8981\u4f20\u9012\u7684\u53c2\u6570<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0int execle(const char *path, const char *arg, …\u00a0\/*, (char *) NULL, char * const envp[] *\/);
\n\u00a0 \u00a0 \u00a0 \u00a0int execv(const char *path, char *const argv[]);
\n\u00a0 \u00a0 \u00a0 \u00a0int execvp(const char *file, char *const argv[]);
\n\u00a0 \u00a0 \u00a0 \u00a0int execvpe(const char *file, char *const argv[], char *const envp[]);<\/p>\n<\/p>\n

l：list \u00a0\u5217\u8868
\np：path \u00a0\u8def\u5f84 ： \u7cfb\u7edf\u8def\u5f84
\nv：vector \u5bb9\u5668
\ne：env \u00a0\u73af\u5883\u53d8\u91cf<\/p>\n<\/p>\n

#include <stdio.h>
\n#include <unistd.h><\/p>\n

int main(int argc, char const *argv[])
\n{
\n \/\/execl("\/usr\/bin\/pstree", "pstree", "-p", NULL);<\/p>\n

char *arg[] = {"ls", "-l", NULL};
\n \/\/execv("\/bin\/ls", arg);<\/p>\n

\/\/execlp("ls", "ls", "-l", NULL);<\/p>\n

execvp("ls", arg);
\n return 0;
\n}<\/p>\n

3.system\u51fd\u6570<\/h2>\n

system \u901a\u8fc7 fork-exec \u542f\u52a8 shell \u6765\u6267\u884c\u547d\u4ee4（\u652f\u6301\u7ba1\u9053\/\u91cd\u5b9a\u5411\u7b49 shell \u7279\u6027），\u5e76\u81ea\u52a8\u5904\u7406\u8fdb\u7a0b\u7b49\u5f85\u548c\u4fe1\u53f7，\u8fd4\u56de\u547d\u4ee4\u7684\u9000\u51fa\u72b6\u6001；\u800c exec \u76f4\u63a5\u66ff\u6362\u5f53\u524d\u8fdb\u7a0b\u4e3a\u6307\u5b9a\u7a0b\u5e8f（\u4e0d\u542f\u52a8 shell，\u65e0\u8fd4\u56de），\u9700\u914d\u5408 fork \u4f7f\u7528\u5e76\u624b\u52a8\u7ba1\u7406\u5b50\u8fdb\u7a0b\u3002<\/p>\n

\n

\u4e0eexec\u51fd\u6570\u65cf\u5173\u952e\u533a\u522b：<\/p>\n

shell \u5904\u7406：system \u8c03\u7528 \/bin\/sh \u89e3\u6790\u547d\u4ee4，exec \u76f4\u63a5\u6267\u884c\u7a0b\u5e8f\u3002<\/p>\n

\u8fdb\u7a0b\u63a7\u5236：system \u963b\u585e\u7b49\u5f85\u547d\u4ee4\u5b8c\u6210，exec \u66ff\u6362\u5f53\u524d\u8fdb\u7a0b（\u82e5\u6210\u529f\u5219\u4e0d\u8fd4\u56de）\u3002<\/p>\n

\u8fd4\u56de\u503c：system \u8fd4\u56de\u547d\u4ee4\u72b6\u6001，exec \u4ec5\u5728\u5931\u8d25\u65f6\u8fd4\u56de（\u6210\u529f\u5219\u6267\u884c\u65b0\u7a0b\u5e8f）\u3002<\/p>\n

\u4f7f\u7528\u573a\u666f：system \u9002\u5408\u7b80\u5355\u547d\u4ee4\u8c03\u7528，exec \u9002\u5408\u7cbe\u786e\u63a7\u5236\u8fdb\u7a0b\u66ff\u6362\u3002<\/p>\n

\u7528execl\u51fd\u6570\u5b9e\u73b0system\u51fd\u6570<\/p>\n

#include <sys\/types.h>
\n#include <unistd.h>
\n#include <stdio.h>
\n#include <stdlib.h>
\n#include <sys\/wait.h><\/p>\n

int main(int argc, char const *argv[])
\n{
\n pid_t pid = fork();<\/p>\n

if(pid > 0)
\n {
\n printf("pid = %d",getpid());<\/p>\n

}
\n else if(0 == pid)
\n {
\n printf("pid = %d\\\\n", getpid());
\n execl("\/bin\/ls", "ls", "-l", NULL);
\n }
\n else
\n {
\n perror("fork error");
\n exit(0);
\n }<\/p>\n

pid_t pidtmp = wait(NULL);
\n printf("pidtmp = %d\\\\n", pidtmp);
\n return 0;
\n}<\/p>\n

4.\u7ebf\u7a0b\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

1. \u4ec0\u4e48\u662f\u7ebf\u7a0b
\n\u00a0 \u00a0 \u00a0\u8f7b\u91cf\u7ea7\u7684\u8fdb\u7a0b，\u53ef\u5b9e\u73b0\u591a\u4efb\u52a1\u7684\u5e76\u53d1\u3002
\n\u00a0 \u00a0 \u00a0\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u5206\u914d\u7684\u6700\u5c0f\u5355\u4f4d；
\n\u00a0 \u00a0 \u00a0\u7ebf\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4efb\u52a1\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d\u3002\u00a0 \u00a0\u00a0
\n2. \u7ebf\u7a0b\u7684\u521b\u5efa
\n\u00a0 \u00a0 \u00a0\u7ebf\u7a0b\u7531\u67d0\u4e2a\u8fdb\u7a0b\u521b\u5efa\u3002
\n\u00a0 \u00a0 \u00a0\u8fdb\u7a0b\u521b\u5efa\u7ebf\u7a0b\u65f6，\u4f1a\u4e3a\u5176\u5206\u914d\u72ec\u7acb\u7684（8M）\u6808\u533a\u7a7a\u95f4；
\n\u00a0 \u00a0 \u00a0\u7ebf\u7a0b\u548c\u6240\u5728\u8fdb\u7a0b，\u4ee5\u53ca\u8fdb\u7a0b\u4e2d\u7684\u5176\u4ed6\u7ebf\u7a0b，\u5171\u7528\u8fdb\u7a0b\u7684\u5806\u533a\u3001\u6570\u636e\u533a\u3001\u6587\u672c\u533a\u3002<\/p>\n

3. \u7ebf\u7a0b\u7684\u8c03\u5ea6
\n\u00a0 \u00a0 \u00a0\u5b8f\u89c2\u5e76\u884c，\u5fae\u89c2\u4e32\u884c \u00a0 \u00a0\u00a0<\/p>\n

4. \u7ebf\u7a0b\u6d88\u4ea1
\n\u00a0 \u00a0 \u00a0 1. \u00a0\u7ebf\u7a0b\u9000\u51fa
\n\u00a0 \u00a0 \u00a0 2. \u56de\u6536\u7ebf\u7a0b\u8d44\u6e90\u7a7a\u95f4<\/p>\n

5.\u8fdb\u7a0b\u4e0e\u7ebf\u7a0b\u7684\u533a\u522b<\/h2>\n

\u8fdb\u7a0b：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u8d44\u6e90\u5206\u914d\u7684\u6700\u5c0f\u5355\u4f4d；
\n\u00a0 \u00a0 \u00a0\u8d44\u6e90\u6d88\u8017：\u8fdb\u7a0b\u8d44\u6e90\u5f00\u9500\u5927，\u6bcf\u6b21\u521b\u5efa\u90fd\u9700\u8981\u67090-4G\u7684\u865a\u62df\u5185\u5b58\u7a7a\u95f4 \u00a0\u00a0
\n\u00a0 \u00a0 \u00a0\u6548\u7387\u89d2\u5ea6：\u7531\u64cd\u4f5c\u7cfb\u7edf\u521b\u5efa，\u521b\u5efa\u65f6\u8017\u65f6\u6bd4\u7ebf\u7a0b\u5927；\u8de8\u8fdb\u7a0b\u8c03\u5ea6\u6bd4\u8de8\u7ebf\u7a0b\u8c03\u5ea6\u6162；
\n\u00a0 \u00a0 \u00a0\u901a\u4fe1\u65b9\u9762： \u8fdb\u7a0b\u95f4\u4e0d\u80fd\u76f4\u63a5\u901a\u4fe1，\u9700\u8981\u4f7f\u7528\u8fdb\u7a0b\u95f4\u901a\u4fe1\u673a\u5236（IPC\u673a\u5236）
\n\u00a0 \u00a0 \u00a0\u5b89\u5168\u6027\u89d2\u5ea6：\u8fdb\u7a0b\u5b89\u5168\u6027\u6bd4\u7ebf\u7a0b\u9ad8，\u5404\u8fdb\u7a0b\u7a7a\u95f4\u72ec\u7acb<\/p>\n

\u00a0 \u00a0 \u00a0<\/p>\n

\u7ebf\u7a0b：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u7ebf\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4efb\u52a1\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d\u3002
\n\u00a0 \u00a0 \u00a0\u8d44\u6e90\u6d88\u8017：\u8d44\u6e90\u5f00\u9500\u8f83\u5c0f，\u53ea\u9700\u8981\u6240\u5728\u8fdb\u7a0b\u4e3a\u5176\u5f00\u8f9f8M\u7684\u6808\u533a\u7a7a\u95f4
\n\u00a0 \u00a0 \u00a0\u6548\u7387\u89d2\u5ea6：\u7531\u6240\u5728\u8fdb\u7a0b\u521b\u5efa；\u8de8\u8fdb\u7a0b\u8c03\u5ea6\u6bd4\u8de8\u7ebf\u7a0b\u8c03\u5ea6\u6162；
\n\u00a0 \u00a0 \u00a0\u901a\u4fe1\u65b9\u9762：\u901a\u4fe1\u7b80\u5355，\u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u5171\u4eab\u7684\u533a\u57df\u8fdb\u884c\u901a\u4fe1（\u6bd4\u5982\u5168\u5c40\u53d8\u91cf）
\n\u00a0 \u00a0 \u00a0\u5b89\u5168\u6027\u89d2\u5ea6：\u7ebf\u7a0b\u6ca1\u6709\u8fdb\u7a0b\u5b89\u5168\u6027\u597d，\u4e00\u4e2a\u7ebf\u7a0b\u5f02\u5e38\u53ef\u80fd\u5f71\u54cd\u540c\u4e00\u8fdb\u7a0b\u4e2d\u7684\u6240\u6709\u7ebf\u7a0b
\n\u00a0<\/p>\n

6.\u7ebf\u7a0b\u7684\u76f8\u5173\u7f16\u7a0b<\/h2>\n

（1）\u7ebf\u7a0b\u7684\u521b\u5efa<\/p>\n

\u5934\u6587\u4ef6：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 #include <pthread.h><\/p>\n

\u51fd\u6570\u63a5\u53e3：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0int pthread_create(pthread_t *thread, const pthread_attr_t *attr,
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 void *(*start_routine) (void *), void *arg);
\n\u00a0 \u00a0 \u00a0 \u529f\u80fd：\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b
\n\u00a0 \u00a0 \u00a0 \u53c2\u6570：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 thread ： \u4fdd\u5b58\u7ebf\u7a0bID\u7684\u53d8\u91cf\u5730\u5740
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 attr：\u7ebf\u7a0b\u5c5e\u6027\u7684\u5bf9\u8c61\u5730\u5740
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0NULL ： \u6309\u7167\u9ed8\u8ba4\u5c5e\u6027\u521b\u5efa
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0start_routine：\u51fd\u6570\u7684\u6307\u9488：\u6307\u5411\u7ebf\u7a0b\u542f\u52a8\u540e\u8981\u6267\u884c\u7684\u4efb\u52a1（\u7ebf\u7a0b\u4efb\u52a1\u51fd\u6570）
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0arg：\u4e3a\u7ebf\u7a0b\u4efb\u52a1\u51fd\u6570\u4f20\u9012\u7684\u53c2\u6570
\n\u00a0 \u00a0 \u00a0\u8fd4\u56de\u503c：
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u6210\u529f：0
\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u5931\u8d25：\u975e0<\/p>\n

#include <stdio.h>
\n#include <pthread.h>
\n#include <unistd.h><\/p>\n

void *tash(void *arg)
\n{
\n printf("tid = %ld\\\\n", pthread_self());
\n}<\/p>\n

int main(int argc, char const *argv[])
\n{
\n pthread_t tid;<\/p>\n

int ret = pthread_create(&tid, NULL, tash, NULL);
\n if(ret != 0)
\n {
\n printf("pthread create error\\\\n");
\n return -1;
\n }<\/p>\n

sleep(2);<\/p>\n

return 0;
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb5\u6b21\u3002\u672c\u6587\u6458\u8981\uff1a\u4ecb\u7ecd\u4e86\u8fdb\u7a0b\u8d44\u6e90\u56de\u6536\u548c\u7ebf\u7a0b\u7f16\u7a0b\u7684\u6838\u5fc3\u6982\u5ff5\u3002\u5173\u4e8e\u8fdb\u7a0b\u56de\u6536\uff0c\u8be6\u7ec6\u8bb2\u89e3\u4e86wait()\u548cwaitpid()\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5\u53ca\u533a\u522b\uff0c\u5305\u62ec\u963b\u585e\/\u975e\u963b\u585e\u56de\u6536\u65b9\u5f0f\u3002\u5bf9exec\u51fd\u6570\u65cf\u8fdb\u884c\u4e86\u7cfb\u7edf\u68b3\u7406\uff0c\u6bd4\u8f83\u4e86\u4e0d\u540cexec\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u65b9\u5f0f\u3002\u5728\u7ebf\u7a0b\u90e8\u5206\uff0c\u9610\u8ff0\u4e86\u7ebf\u7a0b\u4e0e\u8fdb\u7a0b\u7684\u533a\u522b\uff0c\u91cd\u70b9\u8bb2\u89e3\u4e86\u7ebf\u7a0b\u521b\u5efa\u51fd\u6570pthread_create()\u7684\u4f7f\u7528\u3002\u6587\u7ae0\u8fd8\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u5c55\u793a\u4e86system\u51fd\u6570\u4e0eexec\u51fd\u6570\u7684\u5b9e\u73b0\u5dee\u5f02\uff0c\u4ee5\u53ca\u7ebf\u7a0b\u521b\u5efa\u7684\u57fa\u672c\u7f16\u7a0b\u65b9\u6cd5\u3002\u8fd9\u4e9b\u5185\u5bb9\u4e3a\u7406\u89e3Linux\u7cfb\u7edf\u8fdb\u7a0b\u7ba1\u7406\u548c\u591a\u7ebf\u7a0b\u7f16\u7a0b\u63d0\u4f9b\u4e86\u5b9e\u7528\u6307\u5bfc\u3002<\/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],"topic":[],"class_list":["post-57768","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux"],"yoast_head":"\nLinux\u8f6f\u4ef6\u7f16\u7a0b-\u8fdb\u7a0b\uff082\uff09\u53ca\u7ebf\u7a0b\uff081\uff09 - 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