int rel_close(int sock) {
// an empty packet signifies end of file
rel_send(sock,0,0);
while(packets_outstanding > 0) {
wait_for_ack(sock);
}
fprintf(stderr,"\nSent EOF. Now in final wait state.\n");
struct timeval t;
t.tv_sec = 2;
t.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &t, sizeof(t));
int wait_start = current_msec();
// wait for 5 seconds
while(current_msec() - wait_start < 5000) {
rel_recv(sock,0,0);
}
close(sock);
}
int rel_close(int sock) {
fprintf(stderr, "<SHUBHAM>, rel_close called.\n");
fprintf(stderr, "<SHUBHAM>, rel_close: sending close and waiting for ack of close packet(packet_len = 0).\n");
if(user == SENDER){
// an empty packet signifies end of file
rel_send(sock,0,0);
}
fprintf(stderr,"\nSent EOF. Now in final wait state.\n");
fprintf(stderr, "<SHUBHAM>, rel_close: rel_send ended, waiting for 2 more seconds to process close packet.\n");
fprintf(stderr, "<SHUBHAM>, rel_close: exiting\n");
close(sock);
}
int rel_close(int sock) {
rel_send(sock, 0, 0); // send an empty packet to signify end of file
close(sock);
}
