std.container.BinaryHeap + refCounted = WTF???

[Sean Kelly]

Steven Schveighoffer Wrote:
> 
> There is specific code in array appending that locks a global lock when  
> appending to shared arrays.  Appending to __gshared arrays from multiple  
> threads likely will not work in some cases though.  I don't know how to  
> get around this, since the runtime is not made aware that the data is  
> shared.

The shared attribute will have to become a part of the TypeInfo, much like const is now.  Knowing whether data is shared can affect where/how the memory block is allocated by the GC, etc.