[time-nuts] Lady Heather coming soon to a Linux box near you...

Nick Sayer nsayer at kfu.com
Thu Apr 21 06:59:40 UTC 2016


select() is the best way to keep from blocking, at least if you’re not going to use threads or sub-processes.

Unless you’re going to support one or more of the intermediate sound libraries (ALSA comes to mind), then playing a sound involves opening a device, using ioctl()s to set the format and rate and the like, and then writing the samples out and closing, which takes me back to select().

> On Apr 20, 2016, at 10:13 PM, Mark Sims <holrum at hotmail.com> wrote:
> 
> Well,  Lady Heather finally got off her ample ass and dug into the tao of X11 and all things Linuxy.   The program is currently working well enough to display log files, etc.  Serial port initialization for non-blocking asynchronous I/O needs to be completed.   I have it working on a couple of Ubuntu Mate boxes  (X86 and Mac Mini power pc G4) and a Raspberry Pi 3.  I need to tweak the Pi color palette initialization code... the bastards defaulted it to a 16 bit RGB 565 frame buffer...
> One thing that will probably not be supported is sound file support...  playing .WAV files asynchronously does not seem to come naturally to Linux.  Does anybody know of a simple / lazy bastard way to play a sound file in the background from a C/C++ program...  I'd really like my GPS disciplined singing clock to work.
> 
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