From: Suraj Kurapati <snk@...>
Date: 2008-03-02T16:34:09+09:00
Subject: Re: Ruby 1.9 - equivalent of Fiber.current ?

Suraj Kurapati wrote:
> Is it possible to detect whether a method 
> is being called by a Fiber in Ruby 1.9?

Heh, I should have just tried it:

>> Fiber.yield
FiberError: can't yield from root fiber

So the solution is:

begin
  # inside a fiber
  Fiber.yield
rescue FiberError
  # not inside a fiber...
end

But I suppose Fiber.yield could raise FiberError for other reasons... 
is there a better way to do this detection?
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