in reply to Re^2: Threads memory consumption is infinite
in thread Threads memory consumption is infinite

quick question... how do i start/stop each thread?

in other words... so the thread finishes its job and i will immediately have another job for it. i dunno, i like the @ready strategy and reusing the threads, that seems like its exactly what i need, but i dont know how to implement it.

i looked at your code but, like you said, its a little more than i need. i dont need to share any data between threads except the queue which already works

can i send you a PM or an email or something? i love perlmonks but its a little bit of a low bandwidth form of communication

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Re^4: Threads memory consumption is infinite
by zentara (Cardinal) on Jun 11, 2008 at 17:32 UTC
    If you look closely at my thread's code block, you will see it is wrapped in a while loop.....I call it a sleeping thread, and you control it thru shared variables. When you create the thread, it keeps looping(and sleeping a bit) until it gets a go variable change. Here is a simple example of a sleeping thread. As you can see from my other complex example, you need to keep track of everything in hashes if you have more than one threads. It also helps to have an event-loop system, so you don't need difficult while() loops in main to watch the threads, but a clever while loop will work. SeeRoll your own Event-loop and Readkey with timer using Glib

    Don't forget, you can modify that thread's while loop to suit your purposes, you just need to be creative to suit your exact situation. Also remember, you can share filhandles across threads thru the fileno. So you might want to communicate by print to a filehandle in the thread, and reading it in main.

    #!/usr/bin/perl use strict; use warnings; use threads; use threads::shared; my $data:shared = ''; my $go_control:shared = 0; my $die_control:shared = 0; my $thr = threads->new(\&excecute); print "press a key to start thread\n"; <>; $go_control = 1; for( 1.. 10){ print "\t\t$data\n"; select(undef,undef,undef,.25); } print "press a key to stop thread\n"; <>; $go_control = 0; print "press a key to kill thread\n"; <>; $die_control = 1; print "press a key to exit\n"; <>; sub excecute{ my $count; while(1){ if($die_control){ print "thread finishing\n"; return} #wait for $go_control if($go_control){ if($die_control){ print "thread finishing\n"; return} $data = $count++; print $data,"\n"; select(undef,undef,undef,.25); }else{ select(undef,undef,undef,.25); }# sleep until awakened } return; }

    I'm not really a human, but I play one on earth CandyGram for Mongo