dahdi-tools/xpp/perl_modules/Dahdi/Config/Gen/Xpporder.pm
Asterisk Development Team 466357f5c2 Import DAHDI-Tools r9159
This revision of DAHDI-Tools is the base revision for the switch to
git.

git-svn-id: http://svn.astersk.org/svn/dahdi/tools/tools/trunk@9159
2010-08-18 13:49:24 +00:00

143 lines
3.7 KiB
Perl

package Dahdi::Config::Gen::Xpporder;
use strict;
use Dahdi::Config::Gen qw(is_true);
use Dahdi::Xpp;
sub new($$$) {
my $pack = shift || die;
my $gconfig = shift || die;
my $genopts = shift || die;
my $file = $ENV{XPPORDER_CONF} || "/etc/dahdi/xpp_order";
my $self = {
FILE => $file,
GCONFIG => $gconfig,
GENOPTS => $genopts,
};
bless $self, $pack;
return $self;
}
#
# Returns list of xbuses sorted by the span numbers assigned
# to their XPD's. Also checks that each XBUS span numbers are sequential.
sub get_sorted_xbuses(@) {
my @spans = @_; # Verify our spans
my @xbuses = Dahdi::Xpp::xbuses;
my %xbus_of_span;
my %xbus_beginning;
my %seen_spans;
my @sorted_xbuses;
foreach my $xbus (@xbuses) {
my $last_spanno;
foreach my $xpd ($xbus->xpds) {
my $spanno = $xpd->spanno;
if(!$spanno) {
printf STDERR "%s: Is not registered. Skipping.\n", $xpd->fqn;
next;
}
$seen_spans{$spanno}++;
if($xbus_of_span{$spanno}) {
printf STDERR "%s: Span %d already seen on %s\n",
$xpd->fqn, $spanno, $xbus_of_span{$spanno}->name;
die;
}
$xbus_of_span{$spanno} = $xbus;
# Check XPD's sequential numbering
if(defined $last_spanno) {
if($last_spanno + 1 != $spanno) {
printf STDERR "%s: Bad span numbers (%d, %d)\n",
$xpd->fqn, $last_spanno, $spanno;
die;
}
} else {
$xbus_beginning{$xbus} = $spanno;
}
$last_spanno = $spanno;
}
}
foreach my $span (@spans) {
my $spanno = $span->num;
if(!defined($seen_spans{$spanno})) {
warn "Span $spanno: Ignored: Does not belong to any XPD\n";
}
}
@sorted_xbuses = sort { $xbus_beginning{$a} <=> $xbus_beginning{$b} } @xbuses;
return @sorted_xbuses;
}
sub generate($$$) {
my $self = shift || die;
my $file = $self->{FILE};
my $gconfig = $self->{GCONFIG};
my $genopts = $self->{GENOPTS};
my @spans = @_; # Verify it's all our spans
my @xbuses = get_sorted_xbuses(@spans);
warn "Empty configuration -- no xbuses\n" unless @xbuses;
rename "$file", "$file.bak"
or $! == 2 # ENOENT (No dependency on Errno.pm)
or die "Failed to backup old config: $!\n";
#$gconfig->dump;
print "Generating $file\n" if $genopts->{verbose};
open(F, ">$file") || die "$0: Failed to open $file: $!\n";
my $old = select F;
printf "# Autogenerated by $0 on %s\n", scalar(localtime);
print "# If you edit this file and execute $0 again,\n";
print "# your manual changes will be LOST.\n";
print <<'HEAD';
#
# This is an optional configuration file for ordering
# Dahdi registration.
#
# It is read from /etc/dahdi/xpp_order. This location
# may be overridden via the environment variable XPPORDER_CONF
#
# Lines may contain:
# - The Astribank label (verbatim)
# - The Astribank connector string (prefixed with @)
# Ordering number of each listed Astribank is determined
# by its position in this file.
# Astribanks not listed in this file, get an ordering
# number of 99 (last).
#
# Astribanks with same ordering number are sorted by their
# connectors (to preserve legacy behavior).
#
# Examples:
#usb:1234
#@usb-0000:06:02.2-2
HEAD
foreach my $xbus (@xbuses) {
my $label = $xbus->label;
my $connector = $xbus->connector;
my $name = $xbus->name;
printf "%s\t# %s #(%s)\n", $label, $connector, $name;
}
close F;
select $old;
}
1;
__END__
=head1 NAME
Xpporder - Generate Astribank ordering information for dahdi_registration.
=head1 SYNOPSIS
use Dahdi::Config::Gen::Xpporder;
my $cfg = new Dahdi::Config::Gen::Xpporder(\%global_config, \%genopts);
$cfg->generate;
=head1 DESCRIPTION
Generate the F</etc/dahdi/xpp_order>.
This is the configuration for dahdi_registration(1).
The order is determined according to current Dahdi registration
order.
Its location may be overriden via the environment variable F<XPPORDER_CONF>.