Introduced a alternated interface to rrd_graph using rrd_info style return

[rrdtool.git] / bindings / perl-shared / RRDs.pm

diff --git a/bindings/perl-shared/RRDs.pm b/bindings/perl-shared/RRDs.pm
index 7ed87c2..757e5ce 100644 (file)
--- a/bindings/perl-shared/RRDs.pm
+++ b/bindings/perl-shared/RRDs.pm
@@ -7,7 +7,7 @@ use vars qw(@ISA $VERSION);
 
 require DynaLoader;
 
 
 require DynaLoader;
 

-$VERSION = 1.000331;
+$VERSION=1.299907080300;

 
 bootstrap RRDs $VERSION;
 
 
 bootstrap RRDs $VERSION;
 


@@ -16,7 +16,7 @@ __END__
 
 =head1 NAME
 
 
 =head1 NAME
 

-RRDs - Access rrdtool as a shared module
+RRDs - Access RRDtool as a shared module

 
 =head1 SYNOPSIS
 
 
 =head1 SYNOPSIS
 


@@ -26,17 +26,21 @@ RRDs - Access rrdtool as a shared module
   RRDs::info ...
   RRDs::create ...
   RRDs::update ...
   RRDs::info ...
   RRDs::create ...
   RRDs::update ...

+  RRDs::updatev ...

   RRDs::graph ...
   RRDs::fetch ...
   RRDs::tune ...
   RRDs::graph ...
   RRDs::fetch ...
   RRDs::tune ...

+  RRDs::times(start, end)
+  RRDs::dump ...
+  RRDs::restore ...

 
 =head1 DESCRIPTION
 
 =head2 Calling Sequence
 
 
 =head1 DESCRIPTION
 
 =head2 Calling Sequence
 

-This module accesses rrdtool functionality directly from within perl. The
+This module accesses RRDtool functionality directly from within perl. The

 arguments to the functions listed in the SYNOPSIS are explained in the regular
 arguments to the functions listed in the SYNOPSIS are explained in the regular

-rrdtool documentation. The commandline call
+RRDtool documentation. The commandline call

 
  rrdtool update mydemo.rrd --template in:out N:12:13
 
 
  rrdtool update mydemo.rrd --template in:out N:12:13
 


@@ -50,6 +54,10 @@ Note that
 
 is also valid.
 
 
 is also valid.
 

+The RRDs::times function takes two parameters:  a "start" and "end" time.
+These should be specified in the B<AT-STYLE TIME SPECIFICATION> format
+used by RRDtool.  See the B<rrdfetch> documentation for a detailed
+explanation on how to specify time.

 
 =head2 Error Handling
 
 
 =head2 Error Handling
 


@@ -67,22 +75,22 @@ then the previous function has completed its task successfully.
 
 =head2 Return Values
 
 
 =head2 Return Values
 

-The functions RRDs::last, RRDs::graph, RRDs::info and RRDs::fetch return their
-findings.
+The functions RRDs::last, RRDs::graph, RRDs::info, RRDs::fetch and RRDs::times
+return their findings.

 
 B<RRDs::last> returns a single INTEGER representing the last update time.
 
  $lastupdate = RRDs::last ...
 
 B<RRDs::graph> returns an pointer to an ARRAY containing the x-size and y-size of the
 
 B<RRDs::last> returns a single INTEGER representing the last update time.
 
  $lastupdate = RRDs::last ...
 
 B<RRDs::graph> returns an pointer to an ARRAY containing the x-size and y-size of the

-created gif and results of the PRINT arguments.
+created image and results of the PRINT arguments.

 
  ($averages,$xsize,$ysize) = RRDs::graph ...
 
  ($averages,$xsize,$ysize) = RRDs::graph ...

- print "Gifsize: ${xsize}x${ysize}\n";
+ print "Imagesize: ${xsize}x${ysize}\n";

  print "Averages: ", (join ", ", @$averages);
 
 B<RRDs::info> returns a pointer to a hash. The keys of the hash
  print "Averages: ", (join ", ", @$averages);
 
 B<RRDs::info> returns a pointer to a hash. The keys of the hash

-represent the property names of the rrd and the values of the hash are
+represent the property names of the RRD and the values of the hash are

 the values of the properties.  
 
  $hash = RRDs::info "example.rrd";
 the values of the properties.  
 
  $hash = RRDs::info "example.rrd";


@@ -90,6 +98,17 @@ the values of the properties.
    print "$key = $$hash{$key}\n";
  }
 
    print "$key = $$hash{$key}\n";
  }
 

+B<RRDs::graphv> takes the same paramters as B<RRDs::graph> but it returns a
+pointer to hash. The hash returned contains meta information about the
+graph. Like its size as well as the position of the graph area on the image.
+When calling with and empty filename than the contents of the graph will be
+returned in the hash as well (key 'image').
+
+B<RRDs::updatev> also returns a pointer to hash. The keys of the hash
+are concatenated strings of a timestamp, RRA index, and data source name for
+each consolidated data point (CDP) written to disk as a result of the
+current update call. The hash values are CDP values.
+

 B<RRDs::fetch> is the most complex of
 the pack regarding return values. There are 4 values. Two normal
 integers, a pointer to an array and a pointer to a array of pointers.
 B<RRDs::fetch> is the most complex of
 the pack regarding return values. There are 4 values. Two normal
 integers, a pointer to an array and a pointer to a array of pointers.


@@ -109,10 +128,24 @@ integers, a pointer to an array and a pointer to a array of pointers.
     print "\n";
   }
 
     print "\n";
   }
 

+B<RRDs::times> returns two integers which are the number of seconds since
+epoch (1970-01-01) for the supplied "start" and "end" arguments, respectively.
+

 See the examples directory for more ways to use this extension.
 
 See the examples directory for more ways to use this extension.
 

+=head1 NOTE
+
+If you are manipulating the TZ variable you should also call the posixs
+function tzset to initialize all internal state of the library for properly
+operating in the timezone of your choice.
+
+ use POSIX qw(tzset);
+ $ENV{TZ} = 'CET';   
+ POSIX::tzset();     
+
+

 =head1 AUTHOR
 
 =head1 AUTHOR
 

-Tobias Oetiker E<lt>oetiker@ee.ethz.chE<gt>
+Tobias Oetiker E<lt>tobi@oetiker.chE<gt>

 
 =cut
 
 =cut