Re: [boost] singleton and thread safety

From: Jason Hise (chaos_at_[hidden])
Date: 2005-07-31 22:05:45

Jonathan Turkanis wrote:

>Jason Hise wrote:
>
>  
>
>>How can I ensure that initialization is performed before main is
>>entered?  If I cannot, is there some other way to make initialization
>>of static variables thread-safe?  I cannot lock a mutex to manage
>>this, because the mutex lives inside the threading policy instance and the
>>threading policy instance lives in the policy bundle that I am trying
>>to create in the first place.
>>    
>>
>
>You might want to look at this thread:
>
>http://tinyurl.com/9xe83
>
>Jonathan
>
That does indeed confirm that function-local statics are not initialized 
in a thread-safe manner on some current popular C++ compilers.  So to 
avoid the whole mess regarding the DCLP, the best approach would 
probably be eager initialization, before the program enters a 
multi-threaded context.  Is initializing from the constructor of a 
namespace-scope global enough to ensure this?

-Jason