Subject: ftpd's yyparse() routine
To: None <>
From: Aidan Cully <>
List: tech-userlevel
Date: 08/27/2000 14:33:02
Readers of this list may remember that I'm working on reorganizing how
ftpd handles its I/O, to make it stop blocking, to better enable ABOR
to work with rfc2228 support.  My code is starting to get ugly, and I'm
thinking a bit of a change in approach is needed...  I'd like to change
ftpd's yyparse() routine to operate on a line at a time, and move all
socket input all out of the .y file.  The end of the main() routine
would no longer look like:
	for (;;)
		(void) yyparse();
but would instead look more like:
	while ((poll_result = ftp_poll(&cmd_timeout)) >= 0)
	if (poll_result == 0)
		/* timeout on input. */
ftp_poll would process all I/O (directly or not), and the handler
for input on the control channel would process telnet codes, and call
yyparse() for every line of data it receives.

Does this sound OK?