Re: [lwip-users] Thread safety in LWIP core

[Simon Goldschmidt]

Rajesh wrote:

> I am trying to run multi instances of LWIP core on different threads. I know 
> that LWIP core does not supports thread safety

Running multiple instances in different threads is a different thing to thread 
safety. Thread safety is required when calling from different threads into the 
same lwIP core, whereas you won't multiple instances.

Since lwIP heavily relies on global variables that are only available once for 
your CPU, using multiple threads doesn't help you. You either need multiple 
processes, each with their own memory or you need to completely change lwIP to 
not use global variables. I think the latter is what the ReactOS guys did, so 
you might use their lwIP port.

Simon