[PD-dev] Is gensym() threadsafe?

[Kjetil S. Matheussen]

On Tue, 13 Dec 2005, Tim Blechmann wrote:

> hi kjetil,
>
>> I'm working on the snd external, and wonder about gensyms thread
>> safety. It looks to be, but I'm not quite sure. In case it isn't
>> is there a locking-mechanism or something I can use?
>>
>> I also see that there are some functions called sys_lock or
>> something, how does they work?
>
> gensym is basically not thread safe ... for the devel branch i made
> gensym threadsafe, but if you want to write code for miller's pd, you
> need to use the syslock ...
>

Thanks! So how do I use syslock from another thread?

Does this make sence:?

t_symbol *thread_safe_gensym(char *symbol){
  t_symbol *ret;
  sys_lock();
  ret=gensym(symbol);
  sys_unlock();
  return ret;
}


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