svmsg.h

配套光盘网络编程进程间的通信,网络编程进程间的通信是一本很经典的好书

#ifndef MY_SVMSG_H
#define	MY_SVMSG_H

#define	MAXMESGDATA	256
#define	MQ_KEY1	1234L
#define	MQ_KEY2	2345L
#define	SVMSG_MODE	0660
typedef struct MYMESG_TAG{
	long	mesg_len;  //bytes in mesg_data,can be 0
	long	mesg_type;  //message type,must be >0
	char	mesg_data[MAXMESGDATA];
}mymesg;

#endif