request.c

来自「scounix编译通过,c/s完整实现」· C语言 代码 · 共 32 行

/***
*./request.c
*给服务器发送请求
*/
#include <errno.h>
#include <sys/types.h>       
#include  <sys/ipc.h>
#include <sys/msg.h>

#define MSGKEY 3756

main()
{
	struct msgbuf{
		int mtype ;
		int mtext ;
	}buf ;
	int msqid , pid ;
	msqid = msgget(MSGKEY, 0666|IPC_CREAT);
	pid = getpid();
	buf.mtext = pid ;
	buf.mtype = 1 ;

	/*向服务方发送请求,消息类型是1*/
	msgsnd(msqid, &buf, sizeof(buf.mtext), 0);

	/*从服务方接受应答消息*/
	msgrcv(msqid, &buf, 256, pid, MSG_NOERROR);

	printf("process %d receive a acknowledgment from server, type is :%d\n",pid, buf.mtype);
}