[lwip-commits] [SCM] lwIP - A Lightweight TCPIP stack branch, master, updated. 5030fa81a020280c467126568027608fa08e5136

[Joel Cunningham]

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- Log -----------------------------------------------------------------
commit 5030fa81a020280c467126568027608fa08e5136
Author: Joel Cunningham <address@hidden>
Date:   Wed Nov 23 09:45:38 2016 -0600

    bug #49684, api_msg: treat non-blocking ERR_MEM as ERR_WOULDBLOCK
    
    This corrects a case in lwip_netconn_do_writemore() where if a
    non-blocking socket receives ERR_MEM in a call to tcp_write(), it would
    return ERR_MEM, which would result in ENOMEM coming out of the socket
    layer
    
    This case can be gracefully handled by returning ERR_WOULDBLOCK since the
    socket is already marked as no longer writable and sent_tcp/poll_tcp will
    mark the socket as writable again based on available buffer space
    
    This is very similiar to how ERR_MEM is resolved for blocking sockets

-----------------------------------------------------------------------

Summary of changes:
 src/api/api_msg.c |   14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)


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