[PD-dev] Is gensym() threadsafe?
Kjetil S. Matheussen
kjetil at ccrma.stanford.edu
Wed Dec 14 00:13:05 CET 2005
On Wed, 14 Dec 2005, Thomas Grill wrote:
>
>
> Kjetil S. Matheussen schrieb:
>
>>
>> How about changing sys_lock to something like this:
>>
>> void sys_lock(){
>> if(pd_is_running_realtime() && caller_is_not_running_realtime()){
>> post("Error! You must run your thread with realtime priority to be
>> allowed to call sys_lock. Period!");
>> abort();
>> }
>> ...
>> }
>>
> What would be gained by that?
>
To ensure that the caller won't block PD, unless the caller explicitly
calls fread, usleep or other non-realtime functions while holding the
lock.
I definitely think something like that should go in. If you are not
running realtime and aquire the lock you potentionally can screw up the
sound in a way that can only be solved by letting yourself be running
realtime.
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