Pre-fork and Re-use a child process

[rustic]

Hello, fellow monks. I'm following a column of merlyn Doing many things, like pings on how to run and fork processes and at the end there's an interesting statement I'm especially interested in: "One improvement to this program might be to pre-fork and re-use the children, using some sort of IPC (pipes or sockets) to communicate additional tasks to perform as each task completes". The idea is to run some other command upon the results of a ping test. Now, I know the perlipc documentation, but laziness is also a virtue of mine. So, I'd be grateful if somebody of you may point me to some nice examples or maybe already developed a working solution.

[Anonymous Monk]

Some ideas

The article mentions a non-preforking but nicer example http://search.cpan.org/dist/Parallel-ForkManager/lib/Parallel/ForkManager.pm#Data_structure_retrieval

forks version of threads offers an opportunity for a reusable pool of threads

you can also use threads version of threads to create a cue( not a Thread::Pool but yes a Thread::Queue )

Parallel::Fork::BossWorkerAsync looks tointerface be exactly what you're looking for, pre-forking re-use, main program talks to boss, boss keeps reusing children, talking to main

Those are three things I might try

[zentara]

Will a thread do instead of a fork? If so see Reusable threads demo