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/* Lossless_UDP testclient
* A program that connects and sends a file using our lossless UDP algorithm.
*
* Best used in combination with Lossless_UDP_testserver
*
* Compile with: gcc -O2 -Wall -o testclient ../core/network.c ../core/Lossless_UDP.c Lossless_UDP_testclient.c
*
* Command line arguments are the ip and port to cennect and send the file to.
* EX: ./test 127.0.0.1 33445 filename.txt
*/
#include "../core/network.h"
#include "../core/Lossless_UDP.h"
#ifdef WIN32
#define c_sleep(x) Sleep(1*x)
#else
#include <unistd.h>
#include <arpa/inet.h>
#define c_sleep(x) usleep(1000*x)
#endif
#define PORT 33446
void printpacket(char * data, uint32_t length, IP_Port ip_port)
{
uint32_t i;
printf("UNHANDLED PACKET RECEIVED\nLENGTH:%u\nCONTENTS:\n", length);
printf("--------------------BEGIN-----------------------------\n");
for(i = 0; i < length; i++)
{
if(data[i] < 16)
printf("0");
printf("%hhX",data[i]);
}
printf("\n--------------------END-----------------------------\n\n\n");
}
//recieve packets and send them to the packethandler
//run doLossless_UDP();
void Lossless_UDP()
{
IP_Port ip_port;
char data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while(recievepacket(&ip_port, data, &length) != -1)
{
if(LosslessUDP_handlepacket(data, length, ip_port))
{
printpacket(data, length, ip_port);
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
doLossless_UDP();
}
int main(int argc, char *argv[])
{
if (argc < 4)
{
printf("usage: %s ip port filename\n", argv[0]);
exit(0);
}
char buffer[128];
int read;
FILE *file = fopen(argv[3], "rb");
if ( file==NULL ){return 1;}
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
perror("Initialization");
IP_Port serverip = {{{inet_addr(argv[1])}}, htons(atoi(argv[2]))};
int connection = new_connection(serverip);
uint64_t timer = current_time();
while(1)
{
Lossless_UDP();
if(is_connected(connection) == 3)
{
printf("Connecting took: %llu us", (unsigned long long)(current_time() - timer));
break;
}
if(is_connected(connection) == 0)
{
printf("Connection timeout after: %llu us", (unsigned long long)(current_time() - timer));
break;
}
c_sleep(1);
}
timer = current_time();
//read first part of file
read = fread(buffer, 1, 128, file);
while(1)
{
Lossless_UDP();
if(is_connected(connection) == 1)
{
if(write_packet(connection, buffer, read))
{
read = fread(buffer, 1, 128, file);
}
if(sendqueue(connection) == 0)
{
if(read == 0)
{
printf("Sent file successfully in: %llu us", (unsigned long long)(current_time() - timer));
break;
}
}
}
else
{
printf("Connecting Lost after: %llu us", (unsigned long long)(current_time() - timer));
}
c_sleep(1);
}
return 0;
}
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