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Re: [lwip-users] server send data to client failed
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From: |
Sergio R. Caprile |
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Subject: |
Re: [lwip-users] server send data to client failed |
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Date: |
Fri, 28 Sep 2018 10:14:26 -0300 |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
If I guessed correctly, you seem to be talking about the TCP reopen
issue, but your scenario is not clear to me.
You have an lwIP client connecting to a server
Someone closes the connection, or it is lost somehow.
The client retries the connection, does it succeed ? Apparently it does.
If connection succeeds, then both ends must be able to talk to each
other, if this does not happen, then it is not a socket reuse issue but
a bug somewhere.
If connection does not succeed, what is the reason, the result code ?
Unless you setup so_reuseaddress, then you have to wait, but connection
either succeeds or not, there is no "ok, connect but data flows in only
one direction" unless there is a bug. What do you mean by "the port is
in an invalid status" ?
What API are you using ? RAW, netconn, socket ?