msg_client.c

这是一个linux下的编程

//客户端的程序,发送消息的
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/msg.h>
struct my_message
{
	long int message_type;
	char text[1024];
};

int main(int argc,char **argv)
{
	int msgid;
	int snd;
	int running=1;
	char buffer[1024];
	struct my_message msg;

    memset(buffer,0,sizeof(buffer));
	msgid=msgget((key_t)1234,IPC_CREAT|0666);
	while(running)
	{
		printf("Entry some txt!\n");
		fgets(buffer,1024,stdin);
	 	strcpy(msg.text,buffer);
		printf("you input is :%s\n",msg.text);
		msg.message_type=1;
		if((strncmp(buffer,"end",3))==0)
		{
			running=0;
		}
		snd=msgsnd(msgid,(void *)&msg,1024,0);
		if(snd != 0)
		{
			printf("msgsnd is failure\n");
			exit(0);
		}
	}
	return 0;
}