client.c

linux下面的文件锁和信号量的程序

/*
	File:server.c
	Description:client end of program for message queue test
	Author:Luke Huang
	Data:Jun.17 2002
*/

#include "key.h"

int main(int argc,char ** argv){
	key_t key;
	int mq_id;
	Message * p_message=calloc(1,sizeof(Message));;
	
	key=ftok(KEYPATH,KEYID);
	if((mq_id=msgget(key,KEYPERM))==-1){
		perror("could not open the message queue!\n");
		exit(1);
	}
	printf("message queue id %x\n",mq_id);
	msgrcv(mq_id,p_message,sizeof(Message),0,0);
	printf("the message is %s \n",p_message->message);
	exit(0);
}

/* END OF FILE:server.c */