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Date: Wed, 9 Jul 2003 17:17:44 -0700
From: Brooks Davis <brooks@one-eyed-alien.net>
To: freebsd-threads@freebsd.org
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Subject: null pthread_t
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I've got some Linux pthread code that goes something like this that I'm
porting to FreeBSD:

------
pthread_t tid;

tid =3D -1;

/* Do stuff including maybe creating a thread. */

if (tid !=3D -1) {
	pthread_cancel(tid);
	pthread_join(tid, NULL);
}
------

Since FreeBSD uses pointers instead of integers for pthread_t's, this
generates warnings which go away if you replace -1 with NULL, but
it seems like that is likely to do bad things on linux.  Is there a
portable NULL-equivalent pthread_t?  I'm not seeing anything jump out at
me in the headers.

-- Brooks

--=20
Any statement of the form "X is the one, true Y" is FALSE.
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