hydra/src/lib/Hydra/Schema/ResultSet/TaskRetries.pm

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package Hydra::Schema::ResultSet::TaskRetries;
use strict;
use warnings;
use utf8;
use base 'DBIx::Class::ResultSet';
use List::Util qw(max);
=head2 get_seconds_to_next_retry
Query the database to identify how soon the next retryable task is due
for being attempted again.
If there are no tasks to be reattempted it returns undef.
If a task's scheduled retry has passed, it returns 0.
Otherwise, returns the number of seconds from now to look for work.
=cut
sub get_seconds_to_next_retry {
my ($self) = @_;
my $next_retry = $self->search(
{}, # any task
{
order_by => {
-asc => 'retry_at'
},
rows => 1,
}
)->get_column('retry_at')->first;
if (defined($next_retry)) {
return max(0, $next_retry - time());
} else {
return undef;
}
}
1;