NAME

Devel::DTrace::Probe - a live DTrace probe

SYNOPSIS

  use Devel::DTrace::Provider;
    
  my $provider = Devel::DTrace::Provider->new('provider1', 'perl');
  $provider->probe('probe1', 'string');
  my $probes = $provider->enable;
  
  if ($probes->{probe1}->is_enabled()) {
    $probes->{probe1}->fire('foo');
  }

DESCRIPTION

This is the actual probe object, providing methods to call the 'is_enabled' tracepoint function, and the actual 'fire' tracepoint function.

METHODS

is_enabled

Returns a true value if the probe is currently enabled by DTrace. You can use this to determine whether to spend time gathering arguments for the probe.

fire

Fires the probe. Expects to be called with as many arguments of the appropriate type as were declared for the probe.