Re: Thread library: get thread id

From: olivier_debels olivier_debels_at_[hidden])
Date: 2002-12-18 04:34:36

--- In Boost-Users_at_[hidden], "William E. Kempf" 
<wekempf_at_c...> wrote:
> > <alternative exemplar>
> > When I implemented the Leader-Follower thread pattern described 
by
> > Schmidt, et al in Pattern-Oriented Software Architecture, I 
couldn't
> > figure out a way around comparing the thread id to the current 
leader in
> > the
> > promote_new_leader function.  Probably lack of imagination and/or
> > experience on my part, but having the thread id sure made it 
easier.
> > </alternative exemplar>
> 
> If all you need is comparisons, the boost::thread class provides 
this
> today.  That's why I wanted specific requirements for a thread id. 
> Currently the things a thread id can provide that thread does not, 
AFAIK,
> are the following:
> 
> * Can be copied.
> * Can be turned into a unique string for printing/etc.
> 
> These features will be accounted for, I just need to be sure these 
are the
> only features missing.
> 
> William E. Kempf

Ok,

So instead of comparing id's we compare threads.  Fine.  This means 
I need a map of thread references instead of ids.

If I have a thread reference and I want to check if it is the 
current active thread I can do the following?

           thread_ref == Thread();

As far as I understood calling the constructor without arguments 
returns the current thread.  So I can compare that one with my 
thread references.  That would be great! (I guess it is great)

thx,

Olivier.