[lwip-users] tcp close question

[yueyue papa]

Hi all,

In this case:

lwIP  Device   ---------- connect --> Host
    Receive1      <---Response-----  Host
    Receive2     <---Response-----  Host
    Receive3    <---Response-----  Host

    Receiven   <---Response-----  Host
                     <-------close ---------Host

Is it possible lwip get socket error in read, but did not return data?

Some time I found I get the read error due to remote disconnect without response data.  

Is this caused by network or by socket implement problem ?

Lee