tobi et al- i talked a couple weeks ago about how we might change the heart of rrdtool to make it more portable and developer friendly. i think i have a basic code base to get us started toward that goal. you can download the code and try is yourself at
http://www.cs.berkeley.edu/~massie/librrd/ i've compiled and tested the code on Linux, Solaris, MacOS X, FreeBSD, NetBSD and Windows/Cygwin. MacOS users will have to add the line... extern "C" int isnan(double); to the top of some of the source (i'll add the autoconf code to do that later). there is a bug on macosx that occurs when iostream and cmath are used together (as librrd does). anyway. the ./src directory has all the code for building the rrd library and ./test has a simple program for testing it. the test program creates a database with two datasources and two archives, dumps in 62,000+ random samples and then serializes the database into a human-readable text (this test only takes about a second on my laptop.. very fast). the human-readable text format is not the format i recommend for storing the databases .. .it's just there for debugging. adding the xdr code would be pretty trivial. i haven't implemented the fetch code yet but it would not take long at all. it would be pretty easy to wrap this code using SWIG (http://www.swig.org/) to provide Perl, Python, Tcl/Tk, Guile, MzScheme, Ruby, Java, PHP, CHICKEN, Lisp, etc interfaces to librrd. i would be happy to continue working on this on the side as much as i can but things are getting pretty busy now for me. please let me know what you think about this code/approach. btw, i want to give credit where credit is due.. this code is based pretty closely to jrobin (http://www.jrobin.org/). you'll see a "librrd-C-0.1.0.tar.gz" file on my web site which was my first failed approach to solving this problem. i quickly realized the C wasn't going to cut it and i needed C++ (i'm not trying to start any religious wars here). let me know what you think. -matt -- PGP fingerprint 'A7C2 3C2F 8445 AD3C 135E F40B 242A 5984 ACBC 91D3' They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. --Benjamin Franklin, Historical Review of Pennsylvania, 1759 -- Attached file removed by Ecartis and put at URL below -- -- Type: application/pgp-signature -- Desc: OpenPGP digital signature -- Size: 257 bytes -- URL : http://lists.ee.ethz.ch/p/4266A10918194-signature.asc -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-developers WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
