[Haskell-cafe] Re: [Haskell] Top Level <-
ganesh at earth.li
Sun Aug 31 11:20:07 EDT 2008
On Sun, 31 Aug 2008, Brandon S. Allbery KF8NH wrote:
> On 2008 Aug 31, at 10:44, Ganesh Sittampalam wrote:
>> In that case it seems that any library that might be used from a runtime
>> that isn't the top-level of a process should avoid doing IO to those
>> handles, for fear of producing output corruption?
> You handle it the same way you handle I/O with concurrency: either one
> of the runtimes is "privileged" to the extent that it owns the
> filehandles and other runtimes must make an inter-runtime call to use
> them, or the filehandle structures include locking and are shared across
> runtimes. Both of these are used in Haskell (see most GUI libraries for
> the former, and the implementation of Handles for the latter).
Where do the filehandle structures live in the latter case?
More information about the Haskell-Cafe