tcpexample.h

嵌入式系统中实现双机通信的程序

/* tcpExample.h - header used by both TCP server and client examples */  
/*定义结构体，保存待传输的信息，是否回应,以及信息长度*/

#define SERVER_PORT_NUM        7901  /* server's port number for bind() */ 
#define SERVER_WORK_PRIORITY   100    /* priority of server's work task */ 
#define SERVER_STACK_SIZE      10000  /* stack size of server's work task */ 
#define SERVER_MAX_CONNECTIONS  4  /* max clients connected at a time */ 
#define REQUEST_MSG_SIZE       1024   /* max size of request message */ 
#define REPLY_MSG_SIZE			500    /* max size of reply message */ 

/* structure for requests from clients to server */ 
struct request 
    { 
    int reply;                         /* TRUE = request reply from server */  
    int msgLen;                        /* length of message text */ 
    char message[REQUEST_MSG_SIZE];    /* message buffer */  
};