Linux does squawk!
piumarta at prof.inria.fr
Wed Feb 18 09:50:34 UTC 1998
> (Duh! Whus a pthread?) I'd like to rely on nothing beyond the
> relevant audio man pages and UNIX/Posix as desc- ribed in Stevens or
> Lewine. I was a curious a bit about the license on PThreads, and I was
> genuinely surprised that being Berkeley, it probably would not further
> restrict things.
There is no "license" with pthreads, unless you're on a platform that
does not have a vendor-supplied pthreads interface over whatever threads
(Solaris, Mach, ...) are supported in the kernel.
I have written a lot of code using very different threads libraries with
pthreads interfaces, and this code almost always compiles and runs
*unmodified* (with no #ifdefs or other nasties) on all of the platforms
(Linux, Solaris and Digital Unix for example). The fact that a pthreads
interface is not available on (e.g.) SunOS is not necessarily a problem:
SunOS has LWPs, and it's a trivial matter to write "stub functions" for
the (small) part of pthreads that Squeak sound would require in terms of
PS: Just one small caveat: non-blocking I/O is broken when using LWPs. (I
have a working version of the nbio library, but I'm not sure if I'm
allowed to make the soucre available. :-( ) But I doubt that this
would be a problem, since the use of threads is really an alternative
to a non-blocking approach.
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