Transport protocols and bulk file transfer

[Yunhong Gu <>]

int x_setsockopt

"QTTL int msec after which data will be retransmitted"

Maybe I missed something but I wonder why TTL is used to do the
retransmission. I think usually RTO is used to do this and it shouldn't be
set by applications.


int x_sockerror(X_SOCKET skt)

I think the parameter "skt" is not very useful because the error is
always checked right after a socket function is called. For example, on
*nix "errno" is used; on Windows "GetLastError()" or "WSAGetLastError()"
is used. Those global variable or functions simply record the most recent
error.