X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=bindings%2Fperl-shared%2FRRDs.pm;h=6ee4b3d36cb21e5712e6bcc8054724a14cbb1f6d;hb=07c45ee5163cc2c621c356f437f1bf584f10c14c;hp=7ed87c20be4148ec5bd22d03def2e4d7b794fb70;hpb=5837606887a6d81e8b1f7588525cb1c8783fb62b;p=rrdtool.git diff --git a/bindings/perl-shared/RRDs.pm b/bindings/perl-shared/RRDs.pm index 7ed87c2..6ee4b3d 100644 --- a/bindings/perl-shared/RRDs.pm +++ b/bindings/perl-shared/RRDs.pm @@ -7,7 +7,7 @@ use vars qw(@ISA $VERSION); require DynaLoader; -$VERSION = 1.000331; +$VERSION = 1.100001; bootstrap RRDs $VERSION; @@ -29,6 +29,7 @@ RRDs - Access rrdtool as a shared module RRDs::graph ... RRDs::fetch ... RRDs::tune ... + RRDs::times(start, end) =head1 DESCRIPTION @@ -51,6 +52,11 @@ Note that is also valid. +The RRDs::times function takes two parameters: a "start" and "end" time. +These should be specified in the U format +used by rrdtool. See the U documentation for a detailed +explanation on how to specify time. + =head2 Error Handling The RRD functions will not abort your program even when they can not make @@ -67,18 +73,18 @@ then the previous function has completed its task successfully. =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 returns a single INTEGER representing the last update time. $lastupdate = RRDs::last ... B returns an pointer to an ARRAY containing the x-size and y-size of the -created gif and results of the PRINT arguments. +created image and results of the PRINT arguments. ($averages,$xsize,$ysize) = RRDs::graph ... - print "Gifsize: ${xsize}x${ysize}\n"; + print "Imagesize: ${xsize}x${ysize}\n"; print "Averages: ", (join ", ", @$averages); B returns a pointer to a hash. The keys of the hash @@ -90,6 +96,11 @@ the values of the properties. print "$key = $$hash{$key}\n"; } +B 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 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. @@ -109,8 +120,22 @@ integers, a pointer to an array and a pointer to a array of pointers. print "\n"; } +B 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. +=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 Tobias Oetiker Eoetiker@ee.ethz.chE