lib/MojoFacets/Plugin/NYTProf.pm

   1 package MojoFacets::Plugin::NYTProf;
   2
   3 use Devel::NYTProf;
   4 use Time::HiRes ();
   5
   6 sub register {
   7         my ($self, $app) = @_;
   8
   9         # Start timer
  10         $app->plugins->add_hook(
  11                 before_dispatch => sub {
  12                         my ($self, $c) = @_;
  13                         return unless $ENV{PROFILE};
  14                         my $id = Time::HiRes::gettimeofday();
  15                         $c->stash('nytprof.id' => $id);
  16                         my $path = "/tmp/nytprof.$id";
  17                         DB::enable_profile($path);
  18                 }
  19         );
  20
  21         # End timer
  22         $app->plugins->add_hook(
  23                 after_dispatch => sub {
  24                         my ($self, $c) = @_;
  25                         my $p = $ENV{PROFILE} || return;
  26                         DB::disable_profile();
  27                         return unless my $id = $c->stash('nytprof.id');
  28                         my $duration = Time::HiRes::gettimeofday() - $id;
  29                         if ( $c->stash('nytprof.disabled') ) {
  30                                 warn "profile disabled";
  31                                 unlink $path;
  32                         } elsif ( $duration > $p ) {
  33                                 my $path = "/tmp/nytprof.$id";
  34                                 my $new  = "/tmp/MojoFacets.profile.$id-$duration";
  35                                 rename $path, $new;
  36                                 warn "profile $new $duration ", -s $new, " bytes\n";
  37                         } else {
  38                                 warn "profile $path $duration < $p unlink\n";
  39                                 unlink $path;
  40                         }
  41                 }
  42         );
  43 }
  44
  45 1;