在Linux系统中进程间的通信有很多的方法,这次利用消息队列实现进程的通信
进程一的代码实现
#include <sys/types.h>
#include <sys/ipc.h>
#include <stdio.h>
#include <sys/msg.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <string.h>
struct msgbuf{
long type;
char info[50];
};
struct msgbuf m={1,0};//发送的1号信息存放
struct msgbuf n={2,0};//接收的2号信息存放
int main()
{
while(1)
{
memset(m.info,0,sizeof(50));
memset(n.info,0,sizeof(50));//重置消息内容
printf("开始发送!!!!!!!!!!!!!\n");
key_t key=ftok("./",1);//设置键值
int msgid=msgget(key,IPC_CREAT|0666);//创建消息队列
printf("请输入你要发送的内容\n");
scanf("%s",m.info);
msgsnd(msgid,&m,sizeof(m)-sizeof(long),0);//向消息队列中写入数据
printf("发送成功!\n");
if(!strcmp(m.info,"quit"))//设置退出函数
{
printf("程序退出\n");
return 0;
}
printf("开始接收!!!!!!!!!!!!!\n");
msgrcv(msgid,&n,sizeof(n)-sizeof(long),n.type,0);
if(!strcmp(n.info,"quit"))
{
printf("程序退出\n");
return 0;
}
printf("收到:%s\n",n.info);
}
return 0;
}
进程二的代码实现
#include <sys/types.h>
#include <sys/ipc.h>
#include <stdio.h>
#include <sys/msg.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <string.h>
struct msgbuf{
long type;
char info[50];
};
struct msgbuf m={1,0};
struct msgbuf n={2,0};
int main()
{
while(1)
{
memset(m.info,0,sizeof(50));
memset(n.info,0,sizeof(50));
printf("开始接收!!!!!!!!!!!!!\n");
key_t key=ftok("./",1);
int msgid=msgget(key,IPC_CREAT|0666);
msgrcv(msgid,&m,sizeof(m)-sizeof(long),m.type,0);
if(!strcmp(m.info,"quit"))
{
printf("程序退出\n");
return 0;
}
printf("收到:%s\n",m.info);
printf("开始发送!!!!!!!!!!!!!\n");
printf("请输入你要发送的内容\n");
scanf("%s",n.info);
msgsnd(msgid,&n,sizeof(n)-sizeof(long),0);
printf("发送成功!\n");
if(!strcmp(n.info,"quit"))
{
printf("程序退出\n");
return 0;
}
}
return 0;
}
实现效果图如下
标签:info,msgbuf,struct,队列,Linux,通信,printf,sizeof,include From: https://blog.csdn.net/m0_69863374/article/details/141436710