Category Archives: Codemonkeying

February 8, 2008
15:37
by: Dan

When is foo == &foo?

The answer is “in the CMPI interface specification”. So, CMPI defines this massive union of every possible data type, called CMPIValue.  It looks something like this (but with many more types): union {    uint32_t uint32;    uint64_t uint64;    char *chars;    CMPIString … Continue reading →

Posted in Codemonkeying Tagged

January 22, 2008
19:51
by: Dan

Python programs for Windows with py2exe

If you know me, you know that I don’t often acknowledge the existence of Windows as an OS worth my attention.  However, I’m working on some code for a group of people who are predominantly Windows users that, aside from … Continue reading →

Posted in Codemonkeying Tagged ,

January 21, 2008
12:20
by: Dan

Debugging provider crashes on SFCB with gdb

I’ve never had to debug a multi-process program with GDB before.  Mostly because I do a lot of my debugging with printf() and elbow-grease.  However, a CIM provider is in an environment where a crash happen within the broker, which … Continue reading →

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January 9, 2008
17:13
by: Dan

libvirt-cim in Fedora

Today the first build of libvirt-cim hit the Fedora development tree.  This means that by just running “yum install libvirt-cim“, you can have a working CIM provider for Xen on your Fedora 8 machine (assuming you have the development repository … Continue reading →

Posted in Codemonkeying, Linux Tagged , ,

December 12, 2007
17:58
by: Dan

Testing with pywbem

Recently a colleague pointed out that our VirtualSystemManagementService’s RemoveResourceSettings method (in libvirt-cim) was marked with the wrong type.  This was done early on, and probably was just a mistake, given that AddResourceSettings and ModifyResourceSettings both took the same type: an … Continue reading →

Posted in Codemonkeying Tagged ,

December 1, 2007
08:48
by: Dan

Now available in rawhide: libcmpiutil

Yesterday we snapped the 0.1 release of libcmpiutil and I completed the Fedora packaging process.  This involved getting a CVS module created, importing the package, and requesting a build in Koji.  All in all, I found the procedure to be … Continue reading →

Posted in Codemonkeying

November 28, 2007
15:19
by: Dan

Easier association providers with libcmpiutil

In CIM, associations are the powerful links between instances that model relationships.  A particular association may relate any number of objects to any number of other objects.  This can make implementation of the association confusing, difficult, and error-prone. Take, for … Continue reading →

Posted in Codemonkeying Tagged

November 20, 2007
15:50
by: Dan

Mock Rocks!

I’ve been working through the process of getting a libcmpiutil package built for Fedora 9.  I’ve never packaged something for a distro before, so some of the things are a bit new to me.  Luckily, Daniel Veillard did a good … Continue reading →

Posted in Codemonkeying, Linux Tagged ,

November 17, 2007
14:02
by: Dan

Automatic Pidgin status with DBUS and NetworkManager

It’s official.  I have a new mistress and her name is DBUS.  After seeing how easy it was to take an action when a particular storage device was attached, I was hooked.  Since I know NetworkManager has a robust DBUS … Continue reading →

Posted in Codemonkeying, Linux

November 14, 2007
16:41
by: Dan

SBLIM and their broken ABI

The CMPI standard defines the interface between a conforming provider and the CIMOM that loads it.  It’s a massive set of data structures, types, and functions that allow the CIM server to delegate requests to providers, and for providers to … Continue reading →

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