Re: [lwip-users] Freeing memory after http transfer

[Simon Goldschmidt]

> 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?

You did the correct thing, tcp_sent should do the trick. If not, that's a bug 
(either in lwIP, the way you are using it, or in your code or port) which needs 
to be analysed.

Simon
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