//FILE: common/constants.h

//Description: this file contains constants used by srt protocol

//Date: April 18,200

#ifndef CONSTANTS_H
#define CONSTANTS_H

//overlay port opened by the server. the client will connect to this port. You should choose a random port to avoid conflicts with your classmates. Because you may log onto the same computer.
#define OVERLAY_PORT 9009
//this is the MAX connections can be supported by SRT. You TCB table should contain MAX_TRANSPORT_CONNECTIONS entries
#define MAX_TRANSPORT_CONNECTIONS 10
//Maximum segment length
//MAX_SEG_LEN = 1500 - sizeof(seg header) - sizeof(ip header)
#define MAX_SEG_LEN  1464
//The packet loss rate is 10%
#define PKT_LOSS_RATE 0.1
//SYN_TIMEOUT value in nano seconds
#define SYN_TIMEOUT 100000000
//SYN_TIMEOUT value in nano seconds
#define FIN_TIMEOUT 100000000
//max number of SYN retransmissions in srt_client_connect()
#define SYN_MAX_RETRY 5
//max number of FIN retransmission in srt_client_disconnect()
#define FIN_MAX_RETRY 5
//server close wait timeout value in seconds
#define CLOSEWAIT_TIMEOUT 1
//sendBuf_timer thread's polling interval in nanoseconds
#define SENDBUF_POLLING_INTERVAL 100000000
//srt client polls the receive buffer with this time interval in order 
//to check if requested data is available in srt_srv_recv() function
//in seconds
#define RECVBUF_POLLING_INTERVAL 1
//srt_svr_accept() function uses this interval to busy wait on the tcb state
#define ACCEPT_POLLING_INTERVAL 100000000
//size of receive buffer
#define RECEIVE_BUF_SIZE 1000000
//DATA segment timeout value in microseconds
#define DATA_TIMEOUT 100000
//GBN window size
#define GBN_WINDOW 10
#endif