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<TITLE>sane-devel: Re: saned & win32 problem</TITLE>
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<META NAME="Author" CONTENT="Oliver Rauch (oliver.rauch@Wolfsburg.DE)">
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<META NAME="Subject" CONTENT="Re: saned & win32 problem">
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<H1>Re: saned & win32 problem</H1>
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<STRONG>From:</STRONG> Oliver Rauch (<A HREF="mailto:oliver.rauch@Wolfsburg.DE?Subject=Re:%20saned%20&%20win32%20problem&In-Reply-To=<39EDCEB0.6D161A0@wolfsburg.de>"><EM>oliver.rauch@Wolfsburg.DE</EM></A>)<BR>
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<STRONG>Date:</STRONG> Wed Oct 18 2000 - 09:24:16 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0201.html">David McCormick: "Re: Xsane Library"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0199.html">Oliver Rauch: "Re: What about the #include <sane/...> statements in the header files?"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0192.html">Brian Craft: "saned & win32 problem"</A>
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<P>
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Brian Craft wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> This is following up the problem I reported earlier, where during a scan, at the
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</EM><BR>
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<EM>> last second xsane-win32 reports an IO error during read & erases the output
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</EM><BR>
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<EM>> file.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> The IO error occurs when reading the next buffer length in
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</EM><BR>
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<EM>> sane_read() in net.c, i.e. right after "if (s->bytes_remaining == 0)".
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</EM><BR>
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<EM>> The error occurs on about the 3rd from last buffer that is sent.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Comparing the debug output of xsane-win32 with a trace of the
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</EM><BR>
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<EM>> TCP data connection, the win95 box is returning the error on read()
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</EM><BR>
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<EM>> even though the stack has already ACK'd the rest of the stream. I.e.
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</EM><BR>
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<EM>> they've been received by the stack, but read() fails. WTF?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> When the linux box finishes sending the data it sends a FIN, the win95 box
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</EM><BR>
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<EM>> sends a couple ACK's, and the linux box sends a RST.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Could the RST be causing the socket to be shut down asynchronously? so RST
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</EM><BR>
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<EM>> arrives, the socket shuts down, read() returns error with data sitting in
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</EM><BR>
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<EM>> the buffer?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Anyone have any clue what would cause problems like this?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<P>Hi Brian,
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<BR>
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<P>do you use sane-1.0.3 on the server?
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<BR>
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<P>Are you able to test xsane-win32 with an other
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<BR>
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computer with winNT or win98?
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<BR>
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<P>Does anyone else have that problem?
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<BR>
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I did several tests with win98SE to a linux box
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<BR>
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and with winNT to a SGI and never had that problem.
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<BR>
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<P><P>What happens if you scan large images (600 dpi A4 size)?
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<BR>
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<P>bye
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<BR>
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Oliver
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<BR>
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<P><PRE>
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--
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Homepage: <A HREF="http://www.wolfsburg.de/~rauch">http://www.wolfsburg.de/~rauch</A>
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sane-umax: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-umax.html">http://www.wolfsburg.de/~rauch/sane/sane-umax.html</A>
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xsane: <A HREF="http://www.wolfsburg.de/~rauch/sane/sane-xsane.html">http://www.wolfsburg.de/~rauch/sane/sane-xsane.html</A>
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E-Mail: mailto:<A HREF="mailto:Oliver.Rauch@Wolfsburg.DE?Subject=Re:%20saned%20&%20win32%20problem&In-Reply-To=<39EDCEB0.6D161A0@wolfsburg.de>">Oliver.Rauch@Wolfsburg.DE</A>
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<P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20saned%20&%20win32%20problem&In-Reply-To=<39EDCEB0.6D161A0@wolfsburg.de>">majordomo@mostang.com</A>
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</PRE>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Wed Oct 18 2000 - 09:18:05 PDT</EM>
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