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[lwip-users] lwip 1.4 - no FIN sent!
From: |
m8847 |
Subject: |
[lwip-users] lwip 1.4 - no FIN sent! |
Date: |
Thu, 18 Aug 2011 16:46:42 +0200 |
User-agent: |
Roundcube Webmail/0.4.2 |
Hi,
During this summer, my collegue upgraded lwip from 1.3.1 to 1.4.0 (I
think he used 1.4.0 code from June), and while most things looks just
great, I have stumbled on a problem (and he's on vacation right now)
with shutdown.
Basically, I had a very simple webserver, which used to read from a
file, and post back requests to the browser.
I all worked just fine with 1.3.1.
Excerpt of the sending function;
while( (b_read = vfile_read( vfh, temp_buff, HTTP_TEMP_BUFF_SIZE )) )
{
write ( pc_sock, temp_buff, b_read );
}
shutdown( pc_sock, 0 );
(parser and everything else is stripped)
Well, now, with 1.4.0, the same function never gives a FIN when file is
sent. Same code.
Most of (all?) the time, a PSH where sent on the last packet though.
The browser sometimes seamed unhappy about missing FIN, so I tried to
change the code a bit;
while( (b_read = vfile_read( vfh, temp_buff, HTTP_TEMP_BUFF_SIZE )) )
{
so_write ( pc_sock, temp_buff, b_read );
}
shutdown( pc_sock, SHUT_RDWR );
sleep( 100 ); // 100 ms sleep.
close( pc_sock );
And while it works better now (the browser gets a RST with the close()
(still no FIN), and understands this way, not to expect any more data),
it seams wrong?
Or, is this natural behavior? I get into trouble primarily with
Java/Java script stuff, pure html seams to do ok without the FIN.
Any ideas are greatly welcome!
Micael
- [lwip-users] lwip 1.4 - no FIN sent!,
m8847 <=
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Stephane Lesage, 2011/08/18
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Kieran Mansley, 2011/08/18
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Stephane Lesage, 2011/08/18
- Re: [lwip-users] lwip 1.4 - no FIN sent!, MB, 2011/08/18
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Stephane Lesage, 2011/08/19
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Micael, 2011/08/20
- Re: [lwip-users] lwip 1.4 - no FIN sent!, address@hidden, 2011/08/20
- Re: [lwip-users] lwip 1.4 - no FIN sent!, Stephane Lesage, 2011/08/19