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[lwip-users] Blocking functions questions

From: Konrad, Guido
Subject: [lwip-users] Blocking functions questions
Date: Mon, 29 Sep 2003 11:45:24 +0200


we are now successfully running lwip on Motorola PowerPC with uC/OS-II.

Along with working with the system new questions arise. We realized that
the sockets and netconn block during receive. This is rather inconvenient
since it needs an additional task for every service that is supported. A
non blocking mode would be much easier to use and should be even easier to
implement. What is necessary to change the behaving from blocking to non
blocking mode or even support that feature as an option? Speaking about
options and concerning your experience what are the options the most
useful/needed for a TCP/IP stack? As far as I know are there no options
implemented at all with the current version. In a short test we tried a
send-receive within the same station which failed. I am not sure whether
that's because it's not supported, blocking mode or something else went
wrong. Should that work with lwIP? A comparable test under Windows NT
showed positive results.

Thank you in advance!
-- Guido Konrad

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