At 10:24 AM 7/24/02 +0200, Elizabeth Mattijsen wrote:
>>In the future I hope to be able to clone just specific data that is
>>needed for a thread, how this is supposed to work isn't really thought
>>out yet, ideas welcome.
>I was thinking of a combination of a new pragma (or possibly a parameter
>to thread::shared) and a new attribute.
>The attribute would be ": private", the opposite of shared. The pragma
>would set the default for variables defined in the scope, to be either
>shared or thread private.
>
>So:
>
> sub name {
> use threads::shared ':all';
> my $scalar; # would have : shared attribute
> my $other : private; # would _not_ have : shared attribute
> }
Actually, I think we need a third attribute: ': public'.
public current state if not shared: copied when cloning
shared accessible to all threads, not copied
private only accessible in thread, not copied
An execution error should occur when you try to access a variable marked
"private" that was not copied to your thread.
Liz
