boost::thread not started

From: justin_michel (justin_michel_at_[hidden])
Date: 2003-03-10 11:51:30

Platform : Windows XP, Pentium 4, Visual C++ 6 sp5

I've traced down my problem with starting a thread from a DLL called 
from Java JNI. If you look at the source code thread.cpp in boost, 
you can see that a condition variable is used block the creating 
thread until the new thread function is started. Basically, what I 
am seeing is that if you wait on this condition variable, then the 
thread will never start. If I remove the call to param.wait() at the 
bottom of the constructor then everything works fine. I can't think 
of a logical explanation, but it's very repeatable. I was also able 
to recreate this problem using the latest source from CVS. 

The simple solution would be to remove the condition variable from 
thread_param code entirely. This would simplify everything, and I 
don't really see the value anyway. All that is currently guaranteed 
is that thread_proxy will be called before the boost::thread() 
constructor is finished. But it doesn't guarantee that threadfunc() 
will be called before the constructor is finished. 

Thanks,

Justin Michel
OCI