server.c

进程间通信的实验代码

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <sys/msg.h>
#include <sys/ipc.h>
#include "message.h"

int msqid=-1;

void sig_handle(int signo)
{
	if (msqid!=-1)
		msgctl(msqid,IPC_RMID,NULL);
        printf("server quit...\n");
	exit(0);
}

int main()
{
	struct mymsgbuf msgbuf;
	int left,right;
	char c;
        int length;
	if ((msqid=msgget(999,0666))!=-1)
	{
		msgctl(msqid,IPC_RMID,NULL);
	}
	if ((msqid=msgget(999,IPC_CREAT|0666))==-1)
	{
		printf("error:getmsg\n");
		exit(1);
	}
	signal(SIGINT,sig_handle);  /*LINUX-CTRL-D*/
	for (;;)
        {
	   if (msgrcv(msqid,&msgbuf,256,1L,0)==-1)
	   {
	      	printf("error:msgrcv\n");
		    exit(1);
	   }  
           printf("Receive message :\n");
	   printf("\tid:\t %s\n",msgbuf.student.id);
	   printf("\tname:\t %s\n",msgbuf.student.name);
	   printf("\tage:\t %d\n",msgbuf.student.age);
	   printf("\tEmail:\t %s\n\n",msgbuf.student.e_mail);
        }
       	msgctl(msqid,IPC_RMID,NULL);
	exit(0);
}