Using static immutable Exceptions (or other way for NON-GC exceptions)

Liran Zvibel via D.gnu d.gnu at puremagic.com
Wed Feb 18 06:54:42 PST 2015


On Wednesday, 18 February 2015 at 13:07:12 UTC, Iain Buclaw wrote:
> It may be a better solution to have a static TLS pointer that 
> gets
> new'd upon thread start.  Perhaps even make it a pre-allocated 
> array
> so we might be able to get chained exceptions working in GDC 
> runtime.
>
> Iain

I like the idea of static TLS array that gets initialized at each 
thread.
Memory/startup time impact should be minimal, but it will allow 
throwing exceptions without touching the GC.
Some of our code is very latency sensitive, so we try very hard 
not to use the GC at all in these parts.


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