Re: [lwip-users] Using MEM_LIBC_MALLOC == 1 in an OS

[address@hidden]

Edward Harris wrote:
> Can anyone advise on SYS_LIGHTWEIGHT_PROT, please?
>   
SYS_LIGHTWEIGHT_PROT should be set to 1 if you are using pbufs or 
memp-pools from different execution contexts (e.g. more than one thread 
or interrupt context). The name is somewhat misleading as 0 does not 
lead to 'heavyweight' protection but no protection at all! This is 
useful when running the stack with NO_SYS=1 in a big loop without 
(de-)allocating pbufs from interrupt context (-> only one execution 
context at all).

Simon