PERL Miscellaneous - passing objects to threads

Author

passing objects to threads

gaurava@lycos.com

2007-04-25, 8:01 am

Hi,
I am trying to create a new thread within my script and use a global
object reference within the thread. The global object is initialized
before it is passed to the thread. However the thread doesn't receive
an initialized copy. It gets a copy of the reference. I am doing:

use Thread;

Should I use threads and threads::shared? How do I share object
references?

Thanks,
Gaurav

zentara

2007-04-25, 7:02 pm

On 24 Apr 2007 21:43:08 -0700, gaurava@lycos.com wrote:

>Hi,
> I am trying to create a new thread within my script and use a global
>object reference within the thread. The global object is initialized
>before it is passed to the thread. However the thread doesn't receive
>an initialized copy. It gets a copy of the reference. I am doing:
>
>use Thread;
>
>Should I use threads and threads::shared? How do I share object
>references?
>
>Thanks,
>Gaurav

You are treading on quicksand, normally you don't share
objects across threads. Most objects should be consider
NOT-threadsafe, unless otherwise proven.

You are best to contain objects
within a single thread, and share data through shared scalars.
Think about a strategy where you have objects contained
in a single thread and you reuse them, by clearing them out
and feeding them new data through shared variables.

But read this if you really need it:
http://perlmonks.org?node_id=465380

zentara

--
I'm not really a human, but I play one on earth.
http://zentara.net/japh.html

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