[boost] Re: Thread: Why is my prog aborting after 283 or so threads?

From: Michael Glassford (glassfordm_at_[hidden])
Date: 2004-11-24 10:09:24

What version of Boost? I seem to remember a Boost.Threads thread local 
storage problem that would cause a problem after about that many 
threads, which should be fixed in the latest release (1.32 from only a 
few days ago). I'm not sure if that's your problem, but if it is I 
recommend giving 1.32 a try.

Mike

"Tim Laplaca" <tlaplaca_at_[hidden]> wrote in message 
news:5D27A17F676E8648B2C4CB5DC4E40E0D9338DD_at_porsche.corp.voiceglo.com...
>
> I wrote a prog that spawns threads (RED HAT Fedora Core 2), and 
> after
> spawning 283 or so threads, it stops running and 'Aborted' is 
> printed.
>
> It doesn't matter if I spawn them one after each other, or only 10 
> at a
> time, or if the threads only last 1 second or if they all stick 
> around
> until the 283rd thread is spawned.  Every combination I've tried 
> results
> in the prog aborting at about the 283rd thread spawn.
>
> Does this sound familiar to anybody?
>
> Is there something my thread must do to properly shut itself down? 
> Does
> it need to call some kind of procedure to announce it is going away 
> for
> proper cleanup?  I couldn't see anything in the examples like that.
>
> And is there documentation explaining the examples?  I failed to 
> find
> any.
>
> My thread procedure:
>
>
> void updatethread(void* inparams)
> {
>
> thread_params *tparam;
> tparam=(thread_params *)inparams;
>
> int local_threadid = tparam->param1;
> std::string DID = tparam->param2;
>
>
> {
> boost::mutex::scoped_lock scoped_lock(io_mutex);
> std::cout << " Thread:" << local_threadid << " running. "
>      "UPDATE for " << DID << std::endl;
> }
>
>
> // wait some secs (just for debug, remove when real work is
> being done)
>  boost::xtime xt;
> boost::xtime_get(&xt, boost::TIME_UTC);
>      xt.sec += 2;
> boost::thread::sleep(xt);
>
>
>
> {
> boost::mutex::scoped_lock scoped_lock(io_mutex);
> std::cout << " Thread:" << local_threadid << " Exiting. "  <<
> std::endl;
> }
>
>
> {
> boost::mutex::scoped_lock scoped_lock(numthreads_mutex);
> --activethreads;
> }
>
> }
>
>
> MAIN calls it with this:
>
> //spawn thread
> tparam.param1=threadid;
> tparam.param2=dids[i];
> boost::thread *pt;
> pt = thrds.create_thread(thread_adapter(&updatethread, 
> (void*)&tparam));
>
> Thanks,
> Tim
>
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