use IO::Socket::UNIX;
use Regexp::Common (qw(number));
+our $Debug = 0;
+
return (1);
+sub _debug
+{
+ if (!$Debug)
+ {
+ return;
+ }
+ print @_;
+}
+
sub _create_socket
{
my $path = shift;
return ($sock);
} # _create_socket
-=head1 VALUE IDENTIFIER
+=head1 VALUE IDENTIFIERS
The values in the collectd are identified using an five-tuple (host, plugin,
plugin-instance, type, type-instance) where only plugin-instance and
return ($ident);
} # _parse_identifier
+sub _escape_argument
+{
+ my $string = shift;
+
+ if ($string =~ m/^\w+$/)
+ {
+ return ("$string");
+ }
+
+ $string =~ s#\\#\\\\#g;
+ $string =~ s#"#\\"#g;
+ $string = "\"$string\"";
+
+ return ($string);
+}
+
=head1 PUBLIC METHODS
=over 4
my %args = @_;
my $status;
- my $fh = $obj->{'sock'} or confess;
+ my $fh = $obj->{'sock'} or confess ('object has no filehandle');
my $msg;
my $identifier;
$identifier = _create_identifier (\%args) or return;
- $msg = "GETVAL $identifier\n";
- #print "-> $msg";
- send ($fh, $msg, 0) or confess ("send: $!");
+ $msg = 'GETVAL ' . _escape_argument ($identifier) . "\n";
+ _debug "-> $msg";
+ print $fh $msg;
- $msg = undef;
- recv ($fh, $msg, 1024, 0) or confess ("recv: $!");
- #print "<- $msg";
+ $msg = <$fh>;
+ chomp ($msg);
+ _debug "<- $msg\n";
($status, $msg) = split (' ', $msg, 2);
if ($status <= 0)
return;
}
- for (split (' ', $msg))
+ for (my $i = 0; $i < $status; $i++)
{
- my $entry = $_;
+ my $entry = <$fh>;
+ chomp ($entry);
+ _debug "<- $entry\n";
+
if ($entry =~ m/^(\w+)=NaN$/)
{
$ret->{$1} = undef;
Submits a value-list to the daemon. If the B<time> argument is omitted
C<time()> is used. The required argument B<values> is a reference to an array
of values that is to be submitted. The number of values must match the number
-of values expected for the given B<type> (see L<VALUE IDENTIFIER>), though this
-is checked by the daemon, not the Perl module. Also, gauge data-sources
+of values expected for the given B<type> (see L<VALUE IDENTIFIERS>), though
+this is checked by the daemon, not the Perl module. Also, gauge data-sources
(e.E<nbsp>g. system-load) may be C<undef>. Returns true upon success and false
otherwise.
if (defined $args{'interval'})
{
- $interval = ' interval=' . $args{'interval'};
+ $interval = ' interval='
+ . _escape_argument ($args{'interval'});
}
$identifier = _create_identifier (\%args) or return;
}
else
{
- my $time = $args{'time'} ? $args{'time'} : time ();
+ my $time;
+
+ if ("ARRAY" ne ref ($args{'values'}))
+ {
+ cluck ("Invalid `values' argument (expected an array ref)");
+ return;
+ }
+
+ if (! scalar @{$args{'values'}})
+ {
+ cluck ("Empty `values' array");
+ return;
+ }
+
+ $time = $args{'time'} ? $args{'time'} : time ();
$values = join (':', $time, map { defined ($_) ? $_ : 'U' } (@{$args{'values'}}));
}
- $msg = "PUTVAL $identifier$interval $values\n";
- #print "-> $msg";
- send ($fh, $msg, 0) or confess ("send: $!");
- $msg = undef;
- recv ($fh, $msg, 1024, 0) or confess ("recv: $!");
- #print "<- $msg";
+ $msg = 'PUTVAL '
+ . _escape_argument ($identifier)
+ . $interval
+ . ' ' . _escape_argument ($values) . "\n";
+ _debug "-> $msg";
+ print $fh $msg;
+
+ $msg = <$fh>;
+ chomp ($msg);
+ _debug "<- $msg\n";
($status, $msg) = split (' ', $msg, 2);
return (1) if ($status == 0);
my $status;
my $fh = $obj->{'sock'} or confess;
- $msg = "LISTVAL\n";
- send ($fh, $msg, 0) or confess ("send: $!");
+ _debug "LISTVAL\n";
+ print $fh "LISTVAL\n";
$msg = <$fh>;
+ chomp ($msg);
+ _debug "<- $msg\n";
($status, $msg) = split (' ', $msg, 2);
if ($status < 0)
{
$msg = <$fh>;
chomp ($msg);
+ _debug "<- $msg\n";
($time, $ident) = split (' ', $msg, 2);
my $fh = $obj->{'sock'} or confess;
my $msg; # message sent to the socket
- my $opt_msg; # message of the notification
if (!$args{'message'})
{
$args{'time'} = time ();
}
- $opt_msg = $args{'message'};
- delete ($args{'message'});
-
$msg = 'PUTNOTIF '
- . join (' ', map { $_ . '=' . $args{$_} } (keys %args))
- . " message=$opt_msg\n";
+ . join (' ', map { $_ . '=' . _escape_argument ($args{$_}) } (keys %args))
+ . "\n";
- send ($fh, $msg, 0) or confess ("send: $!");
- $msg = undef;
- recv ($fh, $msg, 1024, 0) or confess ("recv: $!");
+ _debug "-> $msg";
+ print $fh $msg;
+
+ $msg = <$fh>;
+ chomp ($msg);
+ _debug "<- $msg\n";
($status, $msg) = split (' ', $msg, 2);
return (1) if ($status == 0);
return;
} # putnotif
+=item I<$obj>-E<gt>B<flush> (B<timeout> =E<gt> I<$timeout>, B<plugins> =E<gt> [...], B<identifier> =E<gt> [...]);
+
+Flush cached data.
+
+Valid options are:
+
+=over 4
+
+=item B<timeout>
+
+If this option is specified, only data older than I<$timeout> seconds is
+flushed.
+
+=item B<plugins>
+
+If this option is specified, only the selected plugins will be flushed. The
+argument is a reference to an array of strings.
+
+=item B<identifier>
+
+If this option is specified, only the given identifier(s) will be flushed. The
+argument is a reference to an array of identifiers. Identifiers, in this case,
+are hash references and have the members as outlined in L<VALUE IDENTIFIERS>.
+
+=back
+
+=cut
+
+sub flush
+{
+ my $obj = shift;
+ my %args = @_;
+
+ my $fh = $obj->{'sock'} or confess;
+
+ my $status = 0;
+ my $msg = "FLUSH";
+
+ if (defined ($args{'timeout'}))
+ {
+ $msg .= " timeout=" . $args{'timeout'};
+ }
+
+ if ($args{'plugins'})
+ {
+ foreach my $plugin (@{$args{'plugins'}})
+ {
+ $msg .= " plugin=" . $plugin;
+ }
+ }
+
+ if ($args{'identifier'})
+ {
+ for (@{$args{'identifier'}})
+ {
+ my $identifier = $_;
+ my $ident_str;
+
+ if (ref ($identifier) ne 'HASH')
+ {
+ cluck ("The argument of the `identifier' "
+ . "option must be an array reference "
+ . "of hash references.");
+ return;
+ }
+
+ $ident_str = _create_identifier ($identifier);
+ if (!$ident_str)
+ {
+ return;
+ }
+
+ $msg .= ' identifier=' . _escape_argument ($ident_str);
+ }
+ }
+
+ $msg .= "\n";
+
+ _debug "-> $msg";
+ print $fh $msg;
+
+ $msg = <$fh>;
+ chomp ($msg);
+ _debug "<- $msg\n";
+
+ ($status, $msg) = split (' ', $msg, 2);
+ return (1) if ($status == 0);
+
+ $obj->{'error'} = $msg;
+ return;
+}
+
+sub error
+{
+ my $obj = shift;
+ if ($obj->{'error'})
+ {
+ return ($obj->{'error'});
+ }
+ return;
+}
+
=item I<$obj>-E<gt>destroy ();
Closes the socket before the object is destroyed. This function is also
projects / collectd.git / blobdiff