[llvm-commits] [PATCH] LockedManagedStatic

[Owen Anderson]

Just for everyone's information, Chris and I discussed this patch  
offline, and we think we have a much better version planned.

--Owen

On Jun 15, 2009, at 10:16 AM, Owen Anderson wrote:

> Here's my next proposal for the long-term goal of making LLVM thread- 
> safe.  The concept here is to create a new subclass of  
> ManagedStaticBase, LockedManagedStatic.  These objects pair a mutex  
> with the object that they're guarding, and hook the mutex up to be  
> initialized automatically when llvm_start_multithreaded() is called.
>
> This does have slight overhead in that it adds a pointer to  
> ManagedStaticBase.  This could probably be avoided by adding another  
> class to the hierarch (LockedManagedStaticBase?), but that seemed  
> overly complex for fairly small benefit.
>
> Comments welcome!
>
> --Owen
>
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