protected class members for shared_work scheduler

[danichcr72]

Hi,

First of all, thanks for the great contributions of fibers to the boost libraries!

I used fibers to build a runtime system for a distributed database system and had the need to create a custom scheduler. The scheduler that I needed was pretty similar to your provided shared_work scheduler with the caveat that the "system" or dispatcher fibers must be scheduled with some frequency to garbage-collect terminated tasks. I proceeded to derive my scheduler from your shared_work but unfortunately needed to change your code to declare the members of the shared_work class to be protected instead of private.

Would it be possible to change these class members to be protected so that they can be accessed by derived classes?

Thanks,

Daniel Chavarria
Trovares Inc.

[olk]

I plan to re-factor the API for custom-schedulers - but unfortunately I'm very busy.

[olk]

related to #113

[olk]

Please, use work_stealing scheduler instead of shared_work. work_stealing is much faster and does schedule dispatcher fibers correctly.
But could you show me your modifications, please?