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#!/usr/bin/perl -w
BEGIN {
# copied from t/op/fork.t from Perl 5.8.0:
require Config; import Config;
unless ($Config{'d_fork'}
or (($^O eq 'MSWin32' || $^O eq 'NetWare') and $Config{useithreads}
and $Config{ccflags} =~ /-DPERL_IMPLICIT_SYS/
))
{
print "1..0 # Skip: no fork\n";
exit 0;
}
}
use strict;
use File::CounterFile;
my $counter = "./zz-counter-$$";
unlink($counter);
$| = 1;
my $num_rounds = 100;
my $num_kids = 10;
my $num_incs = 10;
print "1..$num_rounds\n";
for my $round (1 .. $num_rounds) {
for (1 .. $num_kids) {
my $kid = fork();
die "Can't fork: $!" unless defined $kid;
next if $kid;
#print "Child $$\n";
#select(undef, undef, undef, 0.01);
my $c = File::CounterFile->new($counter);
for (1 .. $num_incs) {
#select(undef, undef, undef, 0.01);
my $v = $c->inc;
#print "$$: $v\n";
}
exit;
}
for (1 .. $num_kids) {
my $pid = wait;
die "Can't wait: $!" if $pid == -1;
#print "Kid $pid done\n";
}
#print "All done\n";
my $c = File::CounterFile->new($counter);
print "not " unless $c->value == $num_kids * $num_incs;
print "ok $round\n";
unlink($counter) || warn "Can't unlink $counter: $!";
}
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