[PD] object using a thread?

Thomas Grill gr at grrrr.org
Sun Aug 28 18:20:12 CEST 2005

Hi Christian,
> otherwise, using threads in PD is just like using threads anywhere 
> else.
> use the pthread stuff (which also works on windoze mitlerweile), and 
> just
> put some mutex's around your read/write operations.

threads in PD is more difficult if you need to use PD functions therein.
For that you can use sys_lock/sys_unlock (flext::Lock(), 
flext::Unlock()) to be sure to be the only thread, but that's 
sub-optimal because it may cause priority inversion (locking to 
real-time thread for too long a time).
In flext you don't need to lock if you just want to send messages to 
the outlets. These and some other functions are thread-safe.
The devel branch has some other very nice feature, namely idle 
processing via callback... in many cases this is much better than using 
a thread.

all the best,

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