pc_client.c

ARM9200+嵌入式linux下的网络驱动

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <string.h>
#include <sys/times.h>
#include <sys/time.h>



int recv_data(int fd);

#define PORT        80
#define HOST        "192.168.0.200"
#define BUFSIZE     1024
char buf[BUFSIZE];
char sbuf[BUFSIZE];
char *cmd[5]={
	"##Start:",
	"##Stop:",
	"##Get status:"
	};
int	 sd;

/////////////////////////////////////////////////////////////////////
int main(int argc, char **argv)
{
    char hostname[100];
	struct sockaddr_in sin;
	struct sockaddr_in pin;
	struct hostent *hp;
	int i=0;
	int recv_count=0;
    strcpy(hostname,HOST);
    if (argc>2){
		strcpy(hostname,argv[2]); 
	}

	/* go find out about the desired host machine */
	if ((hp = gethostbyname(hostname)) == 0) {
		perror("gethostbyname");
		exit(1);
	}

	/* fill in the socket structure with host information */
	memset(&pin, 0, sizeof(pin));
	pin.sin_family = AF_INET;
	pin.sin_addr.s_addr = ((struct in_addr *)(hp->h_addr))->s_addr;
	pin.sin_port = htons(PORT);

for(;;){
	
	
	/* grab an Internet domain socket */
	if ((sd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
		perror("socket");
		exit(1);
	}

	/* connect to PORT on HOST */
	if (connect(sd,(struct sockaddr *)  &pin, sizeof(pin)) == -1) {
		perror("connect failed\n");
		exit(1);
	}
	printf("connect to server ok!\n");
//-------------------------------------------------------------------------	
	sprintf(sbuf,"%s\n",cmd[0]);
		if (send(sd, sbuf, strlen(sbuf), 0) == -1) {
			perror("send");
			exit(1);
		}
		
		for(;;){
			if(recv(sd, buf, BUFSIZE, 0)<=0){
				perror("recv");
				//exit(0);
				break;
			}
			if((i++)%10000 ==0)
				printf("recv %d\r\n",i);
		}
		close(sd);
		sleep(2);
		
//		recv_data(sd);
	}
	return 0;	
//-------------------------------------------------------------------------	
	
}
/////////////////////////////////////////////////////////////////////
static double timeval_sub(struct timeval *x,struct timeval *y)
{
	double result=(x->tv_sec - y->tv_sec)*1000000+(x->tv_usec - y->tv_usec);
	return result/1000000;
}

/////////////////////////////////////////////////////////////////////
static int recv_data(int fd)
{	
	struct timeval start,stop,diff;
	double total_sec;
	int i,j,n;
	int recv_count=0;
	int len;
	FILE *fd_data;
	
	//fd_data=fopen()
	
	printf("receive data from server...\n");
	gettimeofday(&start,NULL);
	while(1){
		len=recv(fd, buf, BUFSIZE, 0);
		if(len <= 0) {
        	perror("recv data complete\n");
        	break;
    	}
		recv_count +=len;
		if(recv_count  % 0x100000 == 0){
			gettimeofday(&stop,NULL);
			printf("receive data %ld KB\n",recv_count>>10);
			total_sec=timeval_sub(&stop,&start);
			printf("=======================================\r\n");
			printf("Receive %dKB data OK!\n",		recv_count>>10);
			printf("Use time = %10.5f seconds!\n", total_sec);
			printf("SPEED    = %10.4f KB/S\n",		(recv_count>>10)/total_sec);
			printf("=======================================\r\n");
		}
	}

}

/////////////////////////////////////////////////////////////////////
/*test all command to server*/
int test_cmd(int argc,char** argv)
{
	int i;
    while(1){
		
		sprintf(sbuf,"%s\n",cmd[i]);
		i++;
		if(i>2)break;
		if(argc>1) sprintf(sbuf,"%s",argv[1]);
		if (send(sd, sbuf, strlen(sbuf), 0) == -1) {
			perror("send");
			exit(1);
		}
		printf("send data to server ok!\n");
		if (recv(sd, buf, sizeof(buf), 0) == -1) {
        	perror("recv");
        	exit(1);
    	}
		printf("recv data from server !\n");
 		printf(buf);	
		sleep(2);
	}
	close(sd);
}