[PD] object using a thread?

Olaf Matthes olaf.matthes at gmx.de
Sun Aug 28 18:49:33 CEST 2005

Christian Klippel wrote:

> after all, i dont need any lock.
> the thread only reads the usb bus with a really high timeout value.
> it then fills one side of a double_buffer, while the other side is read by the 
> metro-like tick in the ps object.
> if that reading buffer is empty, the thread will switch the buffers, thats 
> all. no pd functions involved in the thread.

But you still need locks! When you write data to a buffer you should 
lock the buffer (or if there are two of them, lock the variable that 
indicates which one is currently used). Also do so when reading from the 
buffer, or you'll get sooner or later hard to reproduce crashes...


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