I'm looking for the best way to transmit file/socket/pipe handles between threads. I've been using Storable to communicate jobs to a worker thread (by freezing the job data structure into a shared queue which the thread then pops and thaws it from - is this regarded as Good Practice?), but since Storable can't serialise globs, I can't pass the thread a new IO::Handle to work with.

My first reaction was to try to locally add STORABLE_freeze and STORABLE_thaw methods to IO::Handle, but this doesn't work since IO::Handle objects are actually blessed globs, and (looking at the .xs source) Storable dies (because of its problematic underlying type) before I get the opportunity to use my own "smart" serialising code on the blessed glob.

Beginning to think my only option is to break IO::Handles down to tuples containing something like

.. and recreate using $class->new_from_fd($fd, $mode), but here I'm stumped as to how to work out what the opening mode of the thing is just from its glob.

Any suggestions please?

Addition #1: I've added example code below.

Addition #2: I'm actually not stumped by the open mode thing, was just being lazy - but is this the best way to do things?

In reply to Passing globs between threads by conrad

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