spindance/lwip — pull request #3 by mikes-spindance (2014-11-25 19:29:26+00:00)
Title: ALII-4573 WIP Purge always returns

@raensink @karlj-spindance please review.

These changes keep lwIP from hanging when it times out TCP/IP connection (a PCB). We book keep if a task was blocking on PCB and we return an error to
the blocking task when we delete the connection. Typical reason is that it is sitting idle for 2*MSL which is current 2*4 seconds or 8 seconds.

Signed-off-by: Mike Stitt