Re: playing files from disk [was: Help for dumb *****]
Re: playing files from disk [was: Help for dumb *****]
- Subject: Re: playing files from disk [was: Help for dumb *****]
- From: "AUDIOSYNTH.COM" <email@hidden>
- Date: Wed, 27 Mar 2002 08:24:56 -0600 (CST)
On Tue, 26 Mar 2002, Arthur Clemens wrote:
>
Is there a reason to use pthreads instead of NSThreads in a Cocoa application?
My own preference is to use pthreads in engine code and a higher level
lib in GUI code. Then I can port the engine to linux if I like.
>
One other question: if I want to play multiple files from disk, would
>
I need multiple IOprocs, or could I use one IOproc that iterates
>
through all the channels?
No you only need one IOProc. There are ways to deal with multiple buffers.
I use a command queue to message between the IOproc and lower priority
thread. I send a command whenever there is something to do. The feeder
thread waits for a condition to check the command queue. You could use
a lock free ring buffer, or an atomic linked list stack for the command
queue.
--
--- james mccartney email@hidden <
http://www.audiosynth.com>
SuperCollider - a real time synthesis programming language for the PowerMac.
<
ftp://www.audiosynth.com/pub/updates/SC2.2.14.sea.hqx>
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