[lwip-users] Freeing memory after http transfer

[Bernhard 'Gustl' Bauer]

Hi,

I'm using a http server on lwip 1.3.0

Under special circumstances I need to transfer about 500kB of data from 
lwip to a browser. To do this I borrow some memory from another task. 
After the data is transfered I need to clear the borrowed memory and 
return it to the other task.

I tried using tcp_sent() to trigger this. Unfortunately the last part of 
the data is cleared when I do so. This means tcp_sent is called when the 
memory is still in use.

Any idea what I can use as trigger?

TIA

Gustl