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- Subject: Re: The differences between lua coroutine and golang goroutine?
- From: Javier Guerra Giraldez <javier@...>
- Date: Wed, 23 Mar 2011 22:03:40 -0500
On Wed, Mar 23, 2011 at 9:50 PM, Tang Daogang <email@example.com> wrote:
> Anybody knows the differences between lua coroutine and golang goroutine,
> and further 'channel'?
(note: i hadn't read the code, so i'm just guessing from the docs and
a little observations)
my guess is that a goroutine is initially implemented as a coroutine,
with some clear points of control transfer (at the channel operations
and maybe IO) but with less 'no non-preemptive' guarantees. That, and
the lack of complex environment structures (the global space seems to
be similar to C globals, not a thick web of mutable objects
references, like Lua's), allows the runtime to 'promote' a goroutine
acting as a coroutine into thread-like behavior. the exact criteria
used is left implementation-defined.
there are also some notes about the current runtime not being too
smart nor optimal; but with the promise of future uncertainty :-)