-#!/usr/bin/perl
-
-# Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License, version 2 only, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Software Foundation, Inc., 51
-# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-use strict;
-use warnings;
-
-use Getopt::Long;
-
-my $opt_tracepoint;
-
-GetOptions('tracepoint=s' => \$opt_tracepoint)
- or die("Invalid command-line option\n");
-
-defined($opt_tracepoint)
- or die("Missing tracepoint, use --tracepoint <name>");
-
-# Parse an array string.
-# The format is as follow: [ [index] = value, ... ]
-sub parse_array
-{
- my ($arr_str) = @_;
- my @array = ();
-
- # Strip leading and ending brackets, remove whitespace
- $arr_str =~ s/^\[//;
- $arr_str =~ s/\]$//;
- $arr_str =~ s/\s//g;
-
- my @entries = split(',', $arr_str);
-
- foreach my $entry (@entries) {
- if ($entry =~ /^\[(\d+)\]=(\d+)$/) {
- my $index = $1;
- my $value = $2;
- splice @array, $index, 0, $value;
- }
- }
-
- return \@array;
-}
-
-# Parse fields values.
-# Format can either be a name = array or a name = value pair.
-sub parse_fields
-{
- my ($fields_str) = @_;
- my %fields_hash;
-
- my $field_name = '[\w\d_]+';
- my $field_value = '[\w\d_\\\*"]+';
- my $array = '\[(?:\s\[\d+\]\s=\s\d+,)*\s\[\d+\]\s=\s\d+\s\]';
-
- # Split the various fields
- my @fields = ($fields_str =~ /$field_name\s=\s(?:$array|$field_value)/g);
-
- foreach my $field (@fields) {
- if ($field =~ /($field_name)\s=\s($array)/) {
- my $name = $1;
- my $value = parse_array($2);
- $fields_hash{$name} = $value;
- }
-
- if ($field =~ /($field_name)\s=\s($field_value)/) {
- my $name = $1;
- my $value = $2;
- $fields_hash{$name} = $value;
- }
- }
-
- return \%fields_hash;
-}
-
-# Using an event array, merge all the fields
-# of a particular tracepoint.
-sub merge_fields
-{
- my ($events_ref) = @_;
- my %merged;
-
- foreach my $event (@{$events_ref}) {
- my $tp_provider = $event->{'tp_provider'};
- my $tp_name = $event->{'tp_name'};
- my $tracepoint = "$tp_provider:$tp_name";
-
- foreach my $key (keys %{$event->{'fields'}}) {
- my $val = $event->{'fields'}->{$key};
-
- # TODO: Merge of array is not implemented.
- next if (ref($val) eq 'ARRAY');
- $merged{$tracepoint}{$key}{$val} = undef;
- }
- }
-
- return \%merged;
-}
-
-# Print the minimum and maximum of each fields
-# for a particular tracepoint.
-sub print_fields_stats
-{
- my ($merged_ref, $tracepoint) = @_;
-
- return unless ($tracepoint && exists $merged_ref->{$tracepoint});
-
- foreach my $field (keys %{$merged_ref->{$tracepoint}}) {
- my @sorted;
- my @val = keys ($merged_ref->{$tracepoint}->{$field});
-
- if ($val[0] =~ /^\d+$/) {
- # Sort numerically
- @sorted = sort { $a <=> $b } @val;
- } elsif ($val[0] =~ /^0x[\da-f]+$/i) {
- # Convert the hex values and sort numerically
- @sorted = sort { hex($a) <=> hex($b) } @val;
- } else {
- # Fallback, alphabetical sort
- @sorted = sort { lc($a) cmp lc($b) } @val;
- }
-
- my $min = $sorted[0];
- my $max = $sorted[-1];
-
- print "$field $min $max\n";
- }
-}
-
-my @events;
-
-while (<>)
-{
- my $timestamp = '\[(.*)\]';
- my $elapsed = '\((.*)\)';
- my $hostname = '.*';
- my $pname = '.*';
- my $pinfo = '.*';
- my $pid = '\d+';
- my $tp_provider = '.*';
- my $tp_name = '.*';
- my $cpu_info = '{\scpu_id\s=\s(\d+)\s\}';
- my $fields = '{(.*)}';
-
- # Parse babeltrace text output format
- if (/$timestamp\s$elapsed\s($pinfo)\s($tp_provider):($tp_name):\s$cpu_info,\s$fields/) {
- my %event_hash;
- $event_hash{'timestamp'} = $1;
- $event_hash{'elapsed'} = $2;
- $event_hash{'pinfo'} = $3;
-
-# my @split_pinfo = split(':', $3);
-# $event_hash{'hostname'} = $split_pinfo[0];
-# $event_hash{'pname'} = defined($split_pinfo[1]) ? $split_pinfo[1] : undef;
-# $event_hash{'pid'} = defined($split_pinfo[2]) ? $split_pinfo[2] : undef;
-
- $event_hash{'tp_provider'} = $4;
- $event_hash{'tp_name'} = $5;
- $event_hash{'cpu_id'} = $6;
- $event_hash{'fields'} = parse_fields($7);
-
- push @events, \%event_hash;
- }
-}
-
-my %merged_fields = %{merge_fields(\@{events})};
-print_fields_stats(\%merged_fields, $opt_tracepoint);