Re: [lwip-users] calling tcp_write outside tcp_accept callback

[address@hidden]

Vojtech Janasek wrote:
> Can I call tcp_write function outside callback functions tcp_accept()
> and tcp_poll()? (keeping in mind it isn't reentrant)
>   
As far as I can think, you can call tcp_write virtually from everywhere, 
not only from one of the callback.
However, there is one limitation: in multithreading environments, all 
the raw API functions may only be called from the tcpip_thread since the 
raw API is not locked against concurrent access. From your description 
it seems you are doing exactly this, which would explain why the stack 
locks up at some point.

Simon