/
Scheduler.pm
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/
Scheduler.pm
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package FusionInventory::Agent::Scheduler;
use strict;
use warnings;
use FusionInventory::Agent::Logger;
sub new {
my ($class, %params) = @_;
my $self = {
logger => $params{logger} ||
FusionInventory::Agent::Logger->new(),
lazy => $params{lazy},
background => $params{background},
targets => []
};
bless $self, $class;
return $self;
}
sub addTarget {
my ($self, $target) = @_;
push @{$self->{targets}}, $target;
}
sub getNextTarget {
my ($self) = @_;
my $logger = $self->{'logger'};
return unless @{$self->{targets}};
if ($self->{background}) {
# block until a target is eligible to run, then return it
while (1) {
foreach my $target (@{$self->{targets}}) {
if (time > $target->getNextRunDate()) {
return $target;
}
}
sleep(10);
}
}
my $target = shift @{$self->{targets}};
if ($self->{lazy}) {
# return next target if eligible, nothing otherwise
if (time > $target->getNextRunDate()) {
$logger->debug("[scheduler] $target->{id} is ready");
return $target;
} else {
$logger->info(
"$target->{id} is not ready yet, next server " .
"contact planned for " . localtime($target->getNextRunDate())
);
return;
}
}
# return next target immediatly
return $target;
}
sub getTargets {
my ($self) = @_;
return @{$self->{targets}}
}
1;
__END__
=head1 NAME
FusionInventory::Agent::Scheduler - A target scheduler
=head1 DESCRIPTION
This is the object used by the agent to schedule various targets.
=head1 METHODS
=head2 new(%params)
The constructor. The following parameters are allowed, as keys of the %params
hash:
=over
=item I<logger>
the logger object to use (default: a new stderr logger)
=item I<lazy>
a flag to ensure targets whose next scheduled execution date has not been
reached yet will get ignored. Only useful when I<background> flag is not set.
=item I<background>
a flag to set if the agent is running as a resident program, aka a daemon in
Unix world, and a service in Windows world (default: false)
=back
=head2 addTarget()
Add a new target to schedule.
=head2 getNextTarget()
Get the next scheduled target.
=head2 getTargets()
Get all targets.