I am trying to learn how to fork() standalone processes from a parent Perl script. When I execute my learning script it does fork the sub functions, but one at a time. What I am trying to learn is how do I launch all the sub functions immediately so that all the forks are running together with the parent. Here is my learning code. I have tried reading the man on fork(), but I must be dense, stupid or both, because I can't seem to figure it out.
#!/usr/bin/perl $SIG{CHLD} = "IGNORE"; $f1="file1.txt"; $f2="file2.txt"; $f3="file3.txt"; $naptime=5; sub count{ print "Starting Fork 1\n"; open(FILE1, ">$f1"); while($x < 10){ $x=$x+1; print FILE1 "$x\n"; sleep($naptime); } close(FILE1); fork && exit; } sub count2{ print "Starting Fork 2\n"; open(FILE2, ">$f2"); while($y < 10){ $y=$y+1; print FILE2 "$y\n"; sleep($naptime); } close(FILE2); fork && exit; } count(); count2(); print "Starting Parent Process\n"; open(FILE3, ">$f3"); while($z < 10){ $z=$z+1; print FILE3 "$z\n"; sleep($naptime); } close(FILE3); print "Parent Script Finished!\n"; ########################################################
Somebody please put me out of my misery!
Thanks,
Danny

update (broquaint): added <code> tags


In reply to fork() && exit; by onegative

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