[lwip-devel] [bug #28652] sockets/netconn: speed up rx by calling do_recv asynchronously

[Simon Goldschmidt]

Update of bug #28652 (project lwip):

                  Status:                    None => Need Info              
             Assigned to:                    None => goldsimon              

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Follow-up Comment #1:

Simply not pending on op_completed while do_recv is running might not do the
trick for an embedded OS with static priorities.

The solution favoured by me to implement this is to add a counter of received
data to struct netconn or tcp_pcb and increase this counter instead of
directly calling do_recv and then somehow letting the tcp-fasttimer handle the
window updates.

However, that would leave us either with threading problems (SYS_ARCH_PROTECT
etc.) in the tcp-fasttimer or with yet another timer to handle window updates
on netconn-level.

Any other ideas? This additional task-switch while receiving socket data is
so ugly and slow!

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  <http://savannah.nongnu.org/bugs/?28652>

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