server_us.c

linux/unix下使用unix域套接字通信与使用共享内存+信号量通信方式的用时测试比较代码。

#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <unistd.h>

#define NAME	"unix.socket"
#define QLEN 10
#define BUFF_SIZE 256

int main()
{
	int fd;
	int clifd;
	int len;
	int rval;

	int usec;	
	int sec;
	int min;
	struct timeval tvBefore;
	struct timeval tvAfter;
	struct timezone tzBefore;
	struct timezone tzAfter;

	struct sockaddr_un un;
	if((fd=socket(AF_UNIX,SOCK_STREAM,0)) < 0)
	{	
		printf("socket error!\n");
		return -1;
	}
	unlink(NAME);
	memset(&un,0,sizeof(un));
	un.sun_family = AF_UNIX;
	strcpy(un.sun_path,NAME);
	len = sizeof(un.sun_family)+strlen(NAME);
	if(bind(fd,(struct sockaddr*)&un,len)<0)
	{
		printf("bind error!\n");
		close(fd);
		return -1;
	}
	if(listen(fd,QLEN)<0)
	{
		printf("listen error\n!");
		close(fd);
		return -1;
	}
	if((clifd = accept(fd,(struct sockaddr *)&un,&len))<0)
	{
		printf("accept error!\n");
		close(fd);
		return -1;
	}
	unsigned int i = 1;
	char buf[BUFF_SIZE] = {0};
	gettimeofday (&tvBefore, &tzBefore);
	while(i<100000)
	{
		read(clifd,buf,BUFF_SIZE);
		i++;
	}
	gettimeofday (&tvAfter, &tzAfter);
	printf("i = %ld\n",i);
	usec = tvAfter.tv_usec - tvBefore.tv_usec;
	sec = tvAfter.tv_sec - tvBefore.tv_sec;
	min = tzAfter.tz_minuteswest - tzBefore.tz_minuteswest;
	printf("minutes = %d\nseconds = %d\n useconds = %d\n",min,sec,usec);
	close(clifd);
	close(fd);
}