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?

Ganesh
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