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Latest revisions

# Date Author Comment
13d26b66 02/26/2014 02:06 pm Petr Pudlak

Add more general conf. handling functions to WConfd's Monad

Add functions for reading and writing the configuration. Writing
triggers the asynchronous worker which saves the configuration into the
master file. The actual action that saves the configuration is passed as...
a6a6a1b5 02/26/2014 02:06 pm Petr Pudlak

Add functions for saving the configuration to Ganeti.Config

.. so that it can be not only read, but also written to the master
configuration file.

Signed-off-by: Petr Pudlak <>
Reviewed-by: Klaus Aehlig <>
c5f6dcdf 02/26/2014 02:06 pm Petr Pudlak

Add a module for creating and using asynchronous workers

Each such worker has its own background thread and performs a given
task when triggered. Triggers arriving when the worker is processing are
accumulated and processed together in a subsequent worker action....
5f6515b6 02/26/2014 02:06 pm Petr Pudlak

A separate module for functions for atomic file operations

Utils is getting too big, so better split this new set of functions into
a separate sub-module. This also allows us to use ResultG there.

Signed-off-by: Petr Pudlak <>
Reviewed-by: Klaus Aehlig <>
0efada2a 02/26/2014 02:06 pm Petr Pudlak

Add a function for lifting ResultT from a MonadBase

Often we have `ResultT e IO a` as the return type of our primitive
functions and we need to lift them into a monad stack that is also based
on IO. This function accomplishes this by lifting a ResultT in a base...
32be18fc 02/26/2014 02:06 pm Petr Pudlak

Add a type alias for "ResultT GanetiException IO"

This type occurs often in the upcoming code so it's worth having an
alias for it.

It's included in Errors instead of Utils, because it depends on
GanetiException, and importing Errors from Utils causes a cyclic...
015278eb 02/26/2014 02:06 pm Petr Pudlak

Add logging functions lifted into MonadBase

Calling logging functions in a monad transformer stack requires
instances for all the transformers.
This patch adds a module with functions named just as in Ganeti.Logging,
but lifted into MonadBase. This allows using them in any transformer...
78e0f701 02/26/2014 02:06 pm Petr Pudlak

Add a MonadLog instance for strict StateT and IdentityT

This will be used for asynchronous workers, for which it's convenient to
use StateT to keep their internal state.

Signed-off-by: Petr Pudlak <>
Reviewed-by: Klaus Aehlig <>
5349519d 02/26/2014 02:06 pm Petr Pudlak

Require lifted-base >= 0.1.2 for lifted IORef operations

This allows to use them in any IO-based monad.

Signed-off-by: Petr Pudlak <>
Reviewed-by: Klaus Aehlig <>
a8d64f26 02/26/2014 02:06 pm Petr Pudlak

Add default arguments for WConfd to scripts

In particular, this enables debug logging for WConfd on our test
environment.

Signed-off-by: Petr Pudlak <>
Reviewed-by: Klaus Aehlig <>

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