int process_chunk_response(px_config_t * config, px_conn_t * px_conn) {
server_conn_t * s_conn = px_conn->s_conn;
browser_conn_t* b_conn = px_conn->b_conn;
// find maximum bitrates;
int max_bitrate = -1;
bitrate_t* p = s_conn->bitrates;
while (p) {
max_bitrate = (max_bitrate < p->bitrate) ? p->bitrate : max_bitrate;
p = p->next;
}
if (max_bitrate == -1)
return -1;
// calculate throughput
struct timeval now, result;
gettimeofday(&now, NULL);
timersub(&now, &px_conn->timer, &result);
double elapse = result.tv_sec + (double)result.tv_usec / 1000000;
calculate_throughput(config, px_conn, s_conn->cur_size, elapse,max_bitrate);
save_history_bitrates(config, px_conn);
if (send_data_to_socket(b_conn->fd, s_conn->file_data, s_conn->cur_size)< 0)
return -1;
return 0;
}
int main(int argc,char *argv[]){
check_parameters_number(0, argc, argv);
struct sockaddr_in server_addr;
int byte_sent,server_addr_length = sizeof(server_addr);
char buffer[6] = "hello\0";
struct timeval start;
struct timeval end;
float timeUse = 0;
int dataCount = 0;
// 建立socket
int sock = create_socket();
bzero(&server_addr, server_addr_length);
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(atoi(argv[1]));
server_addr.sin_addr.s_addr = inet_addr(argv[2]);
if(connect(sock, (struct sockaddr *)&server_addr, server_addr_length) == -1)
{
printf("connect failed.\n");
close(sock);
}
// 開始計時
gettimeofday(&start,NULL);
byte_sent = send(sock, "start", sizeof("start"), 0);
if(byte_sent < 0) {
printf("Error sending start packet\n");
} else {
dataCount++;
}
do
{
// int len = strlen(buffer);
// byte_sent = sendall(sock, buffer, &len);
byte_sent = send(sock, buffer, sizeof(buffer), 0);
dataCount++;
gettimeofday(&end,NULL);
// 傳送不成功
if(byte_sent < 0)
{
printf("Error sending packet\n");
}
timeUse = (end.tv_sec-start.tv_sec)+(end.tv_usec-start.tv_usec);//微秒
}while(timeUse < 3000); //執行0.003秒
// 結束訊息
byte_sent = send(sock, "exit", sizeof("exit"), 0);
if(byte_sent < 0) {
printf("Error sending packet\n");
}
printf("Throughput : %f Mbps\n", calculate_throughput(dataCount, sizeof(buffer), timeUse));
close(sock);
return 0;
};
