无名管道

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1 #include 
     
       2 #include 
      
        3 #include 
       
         4 #include 
        
          5  6 int main(void) 7 { 8     char buf[1024]; 9     int pipefd[2];10 11     if( pipe( pipefd ) ){  // 创建无名管道12         perror("pipe failed");13         exit(1);14     }15 16     pid_t pid = fork();           // fork 亲缘进程通讯17     if(pid<0){18         perror("fork failed");19         exit;20     }21 22 23     else if(pid>0){                // 父进程发送数据24         close(pipefd[0]); // 关闭读 25 26         while(1){27             bzero(buf,1024);28             fgets(buf,1024,stdin);29             30             write(pipefd[1],buf,strlen(buf));31 32             if(strncmp(buf,"quit",4)==0)33                 break;34         }35         exit(0);36     }37 38     else if(pid==0){                // 子进程接收数据39         close(pipefd[1]); // 关闭写40 41         while(1){42             bzero(buf,1024);43             read(pipefd[0],buf,1024);44             printf("chiid read: %s",buf);45 46             if(strncmp(buf,"quit",4)==0)47                 break;48         }49         exit(0);50     }51 52     return 0 ;53 }
        
       
      
     

 

 

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success ！

 

 

 

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