Any integral id of posix thread?

[Imre Vadasz]

On 16:12 Sun 07 Feb , Vasily Postnicov wrote:
> Is there any way in pthread to get a unique descriptor of a thread like
> pthread_self() but with an integer type? Like pthread_getthreadid_np()? If
> no, I can send you a patch for it.

There doesn't seem to be a pthread function available on DragonFly
for this purpose yet.
But you can use lwp_gettid() on DragonFly (from /usr/include/unistd.h),
the lwpid_t return value is just an int.

On DragonFly the thread id returned by lwp_gettid() is only unique within
each process, not globally (whereas AFAIK the thread id, returned by
FreeBSD's thr_self() or pthread_getthreadid_np() is globally unique in the
system).
So on DragonFly, to globally identify a specific thread in a specific
process, you'd need both the pid (from getpid()), and the thread id (from
lwp_gettid()).