$write_set is a scalar - a reference to an IO:Select object. Making that scalar sharable does not make the thing it references sharable.

Your post is remarkably similar to this which dates from June 2005. It looks like you cut and pasted it. How come?

In reply to Re: Invalid value for shared scalar error with shared class object by cdarke
in thread Invalid value for shared scalar error with shared class object by Anonymous Monk

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