Feature enhancement: Adding Pool.broadcast() for sending some data to all child workers

[stainleebakhla]

Hi,

It would be a useful feature if there could be a way to send some data to all of the child workers in a pool. Something like Pool.broadcast() function would work. This could be really useful in scenarios when some initial data needs to be sent to a worker before starting any actual work.

Thanks

[josdejong]

Thanks for your suggestion Stainlee.

I think your idea is similar to what is discussed in #65. If so let's please continue the discussion there.

[frankie-zeng]

is there a plan to use worker_thread broadcastchannel, which make all worker recevie a broadcast message and do some actions.

[josdejong]

I'm open to pull requests implementing this (see also #65).