[Haskell-cafe] thread safety, IO arrays, and IO refs
marlowsd at gmail.com
Wed Jan 5 16:23:51 CET 2011
On 31/12/2010 09:19, Eric Stansifer wrote:
> I wish to use a mutable array in multiple threads. Can IO arrays be
> used in any thread, or only the thread they are created in? (So if I
> create an IO array in one thread, pass it to another via an MVar, can
> I read / edit it in that other thread?) Similarly about IORefs... can
> they be used across threads?
There are no restrictions, you can use an IOArray or IORef in any thread.
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