Collectd::Unixsock: Update `putnotif', fix a bug in `getval', better debug output.

The `putnotif' method now handles identifiers and options with spaces
correctly. The `getval' plugin now reads the returned data line wise,
which is the right thing to do anyway. The new `_debug' function prints
debugging output if the (module)global $Debug variable is set.

diff --git a/bindings/perl/Collectd/Unixsock.pm b/bindings/perl/Collectd/Unixsock.pm
index c136221..eb6e389 100644 (file)
--- a/bindings/perl/Collectd/Unixsock.pm
+++ b/bindings/perl/Collectd/Unixsock.pm
@@ -57,8 +57,19 @@ use Carp (qw(cluck confess));
 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;
@@ -200,12 +211,12 @@ sub getval
        $identifier = _create_identifier (\%args) or return;
 
        $msg = 'GETVAL ' . _escape_argument ($identifier) . "\n";
-       #print "-> $msg";
-       send ($fh, $msg, 0) or confess ("send: $!");
+       _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)
@@ -214,9 +225,12 @@ sub getval
                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->{$1} = undef;
@@ -281,11 +295,12 @@ sub putval
        . _escape_argument ($identifier)
        . $interval
        . ' ' . _escape_argument ($values) . "\n";
-       #print "-> $msg";
-       send ($fh, $msg, 0) or confess ("send: $!");
-       $msg = undef;
-       recv ($fh, $msg, 1024, 0) or confess ("recv: $!");
-       #print "<- $msg";
+       _debug "-> $msg";
+       print $fh $msg;
+
+       $msg = <$fh>;
+       chomp ($msg);
+       _debug "<- $msg\n";
 
        ($status, $msg) = split (' ', $msg, 2);
        return (1) if ($status == 0);
@@ -310,10 +325,12 @@ sub listval
        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)
        {
@@ -328,6 +345,7 @@ sub listval
 
                $msg = <$fh>;
                chomp ($msg);
+               _debug "<- $msg\n";
 
                ($time, $ident) = split (' ', $msg, 2);
 
@@ -382,7 +400,6 @@ sub putnotif
        my $fh = $obj->{'sock'} or confess;
 
        my $msg; # message sent to the socket
-       my $opt_msg; # message of the notification
        
        if (!$args{'message'})
        {
@@ -408,16 +425,16 @@ sub putnotif
                $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";
+
+       _debug "-> $msg";
+       print $fh $msg;
 
-       send ($fh, $msg, 0) or confess ("send: $!");
-       $msg = undef;
-       recv ($fh, $msg, 1024, 0) or confess ("recv: $!");
+       $msg = <$fh>;
+       chomp ($msg);
+       _debug "<- $msg\n";
 
        ($status, $msg) = split (' ', $msg, 2);
        return (1) if ($status == 0);
@@ -504,9 +521,12 @@ sub flush
 
        $msg .= "\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);
@@ -515,6 +535,16 @@ sub flush
        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