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World: r3wp

[!REBOL3 Schemes] Implementors guide

Graham
11-Jan-2010
[1172]
so what's the fix?
Andreas
11-Jan-2010
[1173]
dropped the SYST write from 230
Graham
11-Jan-2010
[1174]
I think that might help with directory parsing ...
Andreas
11-Jan-2010
[1175]
made the last "read client" in the read event handler block conditional:
unless client/spec/ready [read client]
Graham
11-Jan-2010
[1176x2]
in case it's an Amiga ftp server ...
:)
Andreas
11-Jan-2010
[1178x2]
returned "client/spec/ready" instead of "false" from the awake
one problem remains: the read after RETR does not return
Graham
11-Jan-2010
[1180x5]
hmm... my 0.0.5 added a return true
on a successful download
so just comment out line 261 ?
write-cmdport/only client [SYST]
so where do I set the state then?
Andreas
11-Jan-2010
[1185x2]
here's a diff of my changes: http://gist.github.com/274796
that's a diff against the 0.0.5 from wik.is
Graham
11-Jan-2010
[1187]
wow .. you managed to nuke my 'read !
Andreas
11-Jan-2010
[1188x6]
hehe :)
now what's expected sequence on the cmd connection for RETR?
ah!!
it completes :)
i'll have to print timestamps to even get an idea how long that stalls 
:)
but now i know that it's 150 for when the transfer starts and 226 
when it finishes
Graham
11-Jan-2010
[1194]
150 is just a mark ... comment
Andreas
11-Jan-2010
[1195]
ok
Graham
11-Jan-2010
[1196x3]
all those can be ignored
can you email the new version?  mine is corrupted now ...with the 
manually applied diff's!
Or upload it ... using the credentials I sent you.
Andreas
11-Jan-2010
[1199x7]
sec, still debugging
closed 12-Jan-2010/2:48:18+1:00
fin 12-Jan-2010/2:51:18+1:00
wow, stalls for precisely 3 minutes
ah, found it
it takes two to takedown a TCP connection
i.e. even if the server closes it's side, until the client also closes, 
the connection is still open
or even more plainly: in the dataport's close handler, you need to 
close the port as well
Graham
11-Jan-2010
[1206x3]
I close cmd ...
oh ... I read that I don't need to close the port ...
oh .. misunderstood ... what I read
Andreas
11-Jan-2010
[1209]
if the dataport is closed on you, you need to close it as well
Graham
11-Jan-2010
[1210x3]
Clients closing connections


The client can simply close the connection without sending QUIT. 
This saves time and memory for both the client and the server.

There are a few broken TCP implementations, such as MacTCP 2.0.6, 
that fail to acknowledge TCP FINs after a local close. If the client 
is running on such a host, it shouldn't close the connection until 
after it sends QUIT and sees the server close the connection; otherwise 
the server will waste time repeatedly transmitting the FIN until 
it times out.
ok, need to close
must be why when I login to chat .. .I start getting more messages 
from my ftp handler!
Andreas
11-Jan-2010
[1213x4]
here's the updated version (i also bumped the version number): http://bolka.at/share/prot-ftp.r, 
here's the full diff to 0.0.5: http://gist.github.com/274796
there's also a lovely gem contained in that code, btw
your dataport is never WAITed on
as there's a WAIT on the ftp scheme port already, simply OPENing 
the dataport suffices to have it scheduled and receiving events
Graham
11-Jan-2010
[1217x2]
ahh... I wondered how that worked
Impressive .. it works fast!
Andreas
11-Jan-2010
[1219x3]
yes
and that with all the debug output
das RETR take full paths?