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Latest revisions

# Date Author Comment
6915fe26 10/17/2011 06:05 pm Michael Hanselmann

utils.cfunc: Cleanup, more flexibility

- Split code using ctypes directly into a helper class
- Don't load “”, but use handle for main program instead (see
comment in code)
- Clarify comment on errno with older ctypes versions
- Rename unittest since it can't be used for other functions (modifies...

57ca011e 10/17/2011 06:05 pm Michael Hanselmann

Rename utils.mlock to utils.cfunc

Renaming so that more code using ctypes could be added to the same file.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: Iustin Pop <>

6b898285 10/14/2011 01:37 pm Iustin Pop

Add design doc for virtual(ised) clusters

I am currently able to run a 2-node virtual cluster on my machine,
with a very ad-hoc setup. But the results show clearly that this is
doable, and that given the right tools, setting up such a cluster will
be quite easy....

ef958f2a 10/14/2011 01:37 pm Iustin Pop

Document some useful Haskell tips

This improves devnotes.rst with some tricks for Haskell development,
and additionally it does two Makefile improvements:

- properly document lib/ as a requirement for
Constants.hs (but do not require rebuild when updated)...

e86f7f65 10/14/2011 01:37 pm Iustin Pop

Further cleanup in hspace

This moves the checking of results from the allocation functions to a
separate function, so that we have less code duplication. It also does
a bit of simplification in the printing functions.

Signed-off-by: Iustin Pop <>...

5296ee23 10/14/2011 01:37 pm Iustin Pop

A bit of cleanup in hspace

The node offline/mcpu is identical to hbal's setNodesStatus, so let's
move that to CLI.hs and reuse it in hspace (also, rename it and drop
one 's').

Also, the check for the number of nodes is obsolete, as we compute
that from the disk template....

7eda951b 10/14/2011 01:37 pm Iustin Pop

Add a type synonym for the allocation function sig

Both iterateAlloc and tieredAlloc share the same signature, but it's
not documented nor exported (needed for refactoring).

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>

d12f50b2 10/14/2011 01:37 pm Iustin Pop

htools: Simplify Luxi query results parsing

The logic is not entirely correct—the new Query interface exports the
field status, and we don't use that yet. But the new code should be
more readable.

Signed-off-by: Iustin Pop <>
Reviewed-by: Guido Trotter <>

b20cbf06 10/14/2011 01:37 pm Iustin Pop

Adjust htools code to new Luxi argument format

This partially undoes commit 92678b3, more specifically it removes the
Store data type and the associated code, since all Luxi arguments are
now lists.

Furthermore, since the qfilter field on Query is complex (it's...

b8d51bb2 10/13/2011 05:40 pm Michael Hanselmann

constants: Verify exported names

The “constants” module is a bit special in the sense that we don't want
to export random stuff from it. This unittest checks the naming
convention and removes imported modules from the module's namespace.

Signed-off-by: Michael Hanselmann <>...

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