操作系统：进程的管道通信实验

#include<stdio.h>#include<unistd.h>#include<signal.h>#include<stdlib.h>#include<sys/wait.h>int pid1,pid2;int main(){int fd[2];char outpipe[100],inpipe[100];while((pid1 = fork()) == -1);if(pid1 == 0){lockf(fd[1], 1, 0);sprintf(outpipe,"\n child process 1 is sending message!\n");write(fd[1], outpipe, 50);sleep(5);lockf(fd[1], 0, 0);exit(0);}else{while((pid2 = fork()) == -1);if(pid2 == 0){lockf(fd[1], 1, 0);sprintf(outpipe,"\n child process 2 is sending message !\n");write(fd[1], outpipe, 50);sleep(5);lockf(fd[1], 0, 0);exit(0);}else{wait(0);read(fd[0], inpipe, 50);printf("%s\n",inpipe);wait(0);read(fd[0], inpipe, 50);printf("%s\n",inpipe);exit(0);}}}