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This patch includes following functionality:
1) Fixed the invalid handling of the pointers in the collection
when last element is removed from the collection.
2) Added unit test to verify the fix.
3) Modified the three unit test to be verbose on demand.
4) Switched the main of the unit test to use array of functions
rather than big if statement.
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This object allows creation the arrays
with the reference count. Usefull when
there are many instances of some object
have to reference dynamically allocated array
which is common for all these instances.
In case of ELAPI the event object
keeps a referecne to the common array
of the sinks in the fail over order.
We decided that it will be a common object
not specific only to ELAPI.
All the review concerns related to this
object have been addressed in this patch.
It also has been moved to the common area.
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The original implementation was compressing the list,
throwing away empty strings.
The function that did that was pretty brain damaging.
I cleaned it up and adjusted so that it could return
list with empty values and without them.
The old function was turned into a wrapper and a new
high level function was intorduced to provide
ability to get both empty and non empty strings.
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This is the preferred way of setting the version in a file, as
autotools will properly monitor this file for changes and rerun
autoconf/configure when necessary to update the version. This
means that we don't need to manually perform an autoreconf in
order to build a new RPM
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Right now, the pkg-config checks for the system version of
libdhash are forcibly disabled, requiring the SSSD to build it
from its own tree. In the future, when we split the libraries off
from the SSSD, it will be easy to switch this check to the
external library.
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Some newlines are added, too.
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The previous patch included "config.h"
into the public header which caused all sorts
of redefinitions and warnings.
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Added configurable key length.
Changed comments for the functions that
are currently not used and reserved for
future functionality.
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I scanned through the code and made sure that the FIXME
comments are either addressed or a corresponding ticket exists.
I removed two comments that had "FIXME" in them.
The tickets for those comments are #72 and #308.
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This patch adds ability to create a reference to the top
level collection.
Previously one could get reference only to collection
inside other collection. With this change it becomes
possible to have two pointers to the same top level
collection from multiple places.
COLLECTION Adding comment.
COLLECTION: Some tracing
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Added more distingushable indication to
the trace messages that represent errors.
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Also pass a flag to the delete callback to tell it if this is a normal
entry removal or we are cleaning up the tbale definitively.
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Previously we were only building them but not running them.
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This reverts commit 9a446ad6d6445ed22f0d5132a241a3c8be5e1008.
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This reverts commit a7360aa07780133b77c7fa0ab629b5e660e1e49a.
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Until such time as ELAPI is in a usable state, it makes no sense
to be building and distributing it in the tarball. This patch
will disable it from building and inclusion in the tarball.
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Addreses ticket #94
Actually works pretty well.
To try use --enable-compat when build ELAPI.
It will use compatibility code instead of
getifaddr().
The trick in the elapi_ioctl.h with memory
allocation is taken from Stevens book.
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The issue was that the host IP was recorded twice,
once as a main address and another as IP alias.
It seemed that the IP was returned as name
but the issue turned out to be different.
See https://fedorahosted.org/sssd/ticket/207.
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Addressing Ticket #191.
Renamed all varibles from 'template' to 'tpl'.
Used 'tplt' in function names instead of 'templete'.
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Patch adds ability to read
configuration using already open
file descriptor.
Started by Steve G and refined a bit by me.
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This patch continues work started
with the previous patch.
It resolves message attribute.
Message attribute is a special attribute
in the event that may contain
references to other attributes in the
event. When message is resolved the
references are replaced with actual
values of the referenced attributes.
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Started working on the async processing
and realised that I need to have a good
copy of the event with all the fields resolved
so this patch has some foundation for the async
functions (module elapi_async.c) but they
are mostly stubbed out.
The actual code will be added down the road.
Instead the patch focuses on the code
introduced in elapi_resolve.c module
and the use of the functions from it.
It also adds the implementation of the
high level calls that initialize ELAPI
with the external callbacks to be used
during async processing (elapi_log.c).
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This is a feature that helps ELAPI.
It makes lookup of the fields that need
to be resolved for every event a bit faster.
The idea is to be able to put a 'pin'
into a specific place while iterating
the collection and make this place a new
"wrap around" place for the collection.
This means that next time you
iterate this collection you will start
iterating from the next item and
the item you got before pin will be last
in your iteration cycle.
Here is the example:
Assume you have two collections that you need
to compare and perform some action on collection
1 based on the presense of the item in collection 2.
Collection1 = A, B, C, D, E. F
Collection2 = A, C, F
The usual approach is to try A from collection 1
against A, B, C from collection 2. "A" will be found
right away. But to find "F" it has to be compared
to "A" and "C" first. The fact that the collections
are to some extent ordered can in some cases
help to reduce the number of comparisons.
If we found "C" in the list we can put a "pin"
into the collection there causing the iterator
to warp at this "pin" point. Since "D" and "E"
are not in the second collection we will have
to make same amount of comparisons in traditional
or "pinned" case to not find them.
To find "F" in pinned case there will be just one
comparison.
Traditional case = 1 + 3 + 2 + 3 + 3 + 3 = 15
Pinned case = 1 + 3 + 1 + 3 + 3 + 1 = 12
It is a 20% comparison reduction.
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Created a new module to hold functions
related to iterator and iterating
collections. Planning to add new functions
but the main collection module is already
too big. So this patch just moves code around
and fixes the build making foundation for
the next patch.
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Needed item comparison functions and realized
that the easiest way to test them would be using
sorting. Since there already been a ticket #73
to do that I added function to sort collection
based on different properties of the item.
COLLECTION Fixing issues with comparisons
COLLECTION Adding do-while to macro
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members
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Necessary for RPM builds on RHEL5
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Inspired by issue #173 I reviewed the
other function of the interface and
found a lot of problems with its
error handling.
Also made INI use collection public interfaces.
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This patch eliminates the need to include
collection's private header and uses only
public interface.
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The hashing logic was internal to the collection item.
But if someone wants to effectively deal with
the items and compare the property to a string
he should compare hashes first. But it was not possible
without the provided functions. As a result some
of the ELAPI modules had to take advantage of
knowledge of the item structure. This is bad.
So this patch lays foundation for refactoring
of the ELAPI code that was using internals of the item
directly (file_util.c mostly).
Also patch adds a unit test that was required for
testing new functionality and for ticket #83
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This patch adds better options for
copying collections in flat mode.
It allows caller of the interface
to control prefixing of the fields
when one collection is appended to another.
It also avoids creating prefixes when the
collection is simply copied in flat mode.
Also for ELAPI I realized that the most efficient
way to deal with the "resolved" event
(event where all templeted values are actually replaced
with the real values) is to add a callback
capability to a copy collection function
so that the callback can be used to modify
the data (resolve it) while the copy operation
is in progress. This approach eliminates the need
for separate set of lookups after the event
is already copied.
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This patch addresses several issues:
a) Adds capability to add or copy the collections
in flattened mode but construct names of attributes
in dotted notation. For example when you append collection
"sub" with items "foo" and "bar" previously you
could add them as "foo" and "bar" not you can
flatten them and the names will be "sub.foo"
and "sub.bar" this allows better processing of the
attributes in the elapi message.
b) Removes old implemntation of the
copy collection function.
c) Removes the col_set_timestamp,
this functionality has been moved to ELAPI
long ago.
d) Updates collection unit test.
e) Updates elapi to use new functionality
f) Updates elapi unit test
Have run under valgrind with no problems.
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A relatively small patch aligning headers
and a small portion of code for upcoming
implementation of the async event processing.
Cleanup of the test config file.
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This patch creates the infrastructure for
logging of the event from the top of the interface
to the bottom. It is a start. A lot of functionality
is left aside.
The attempt of this patch is pass event from caller
of the ELAPI interface via targets to sinks
then to providers and do serialization creating
entity that is ready to be written to a file.
It also implements more specific provider related
configuration parameters.
Also it addresses couple suggestions that were
brought up against previous patch.
ELAPI Correcting issues
This patch addresses the issues found during the
review of the previous patches and addresses
ticket #166.
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This patch drills down to the next level of ELAPI functionality.
I adds the creation and loading of the sinks. It also
implements a skeleton for the first low level provider
which will be capable of writing to a file.
The configuration ini file is extended to define
new configuration parameters and their meanings.
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- replaced mailing list address
- let sssd base components read version from VERSION
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Per ticket #118 shortened naimes of some functions and structs I added
into ELAPI during last big functional patch .
There is no plan to do a global shortening of all names
but miving forward I will try to make them shorter than I used to.
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Started looking at the ticket #107 related to
traverse functions. Realized that the return values
are not consistent. That ovelapped with the work
that I wanted to do for ticket #103 - errno cleanup.
So I (across collection, INI and ELAPI):
* Made the return codes consistent (where found)
* Removed errno where it is not needed
While was testing used valgrind and found a nasty
problem when the value was added to collection with
overwriting duplicates the count was decreased improperly.
Fixing collection.c to not decrease count made
valgrind happy. While I was debugging this
I also spotted several build warnings in trace
statements when the " exp ? v1 : v2 " was used.
Fixed those.
In ini_config.c there was a trace stament that used
variable after it was freed. Removed trace stament.
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The targets are the destinations which
caller wants to send the events to.
The sinks are now on the second level
under targets and constitute a so called
fail over chain for a target.
Such approach eliminates the need for complex
routing function.
The dispatcher keeps the list of targets in a collection.
The element in the collection is the target context.
Also gispatcher keeps the list of the sinks
in a separate collection.
Each target context has a list of the sinks
associated with this target. But those are just
pointers (at least for now) to the sinks
form the list kept by dispatcher.
I had to add some internal debug callbacks
to be able to see that all the internals of
the dispatcher are actually in order.
See the conttent of config file for more comments.
Also see information posted on SSSD wiki.
https://fedorahosted.org/sssd/wiki/WikiPage/ELAPIInterface
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Patch adds checks for NULL to the trace macros.
It also eliminates the unused trace.h in the collection directory.
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