Commit Graph

3 Commits

Author SHA1 Message Date
Jordan Hrycaj 8e00143313
Aristo db code massage n cosmetics (#1745)
* Rewrite remaining `AristoError` return code into `Result[void,AristoError]`

why:
  Better code maintenance

* Update import sections

* Update Aristo DB paths

why:
 More systematic so directory can be shared with other DB types

* More cosmetcs

* Update unit tests runners

why:
  Proper handling of persistent and mem-only DB. The latter can be
  consistently triggered by an empty DB path.
2023-09-12 19:45:12 +01:00
Jordan Hrycaj 3936d4d0ad
Aristo db fixes n updates needed for filter fifo (#1728)
* Set scheduler state as part of the backend descriptor

details:
  Moved type definitions `QidLayoutRef` and `QidSchedRef` to
 `desc_structural.nim` so that it shares the same folder as
  `desc_backend.nim`

* Automatic filter queue table initialisation in backend

details:
  Scheduler can be tweaked or completely disabled

* Updated backend unit tests

details:
+ some code clean up/beautification, reads better now
+ disabled persistent filters so that there is no automated filter
   management which will be implemented next

* Prettify/update unit tests source code

details:
  Mostly replacing the `check()` paradigm by `xCheck()`

* Somewhat simplified backend type management

why:
  Backend objects are labelled with a `BackendType` symbol where the
  `BackendVoid` label is implicitly assumed for a `nil` backend object
  reference.

  To make it easier, a `kind()` function is used now applicable to
  `nil` references as well.

* Fix DB storage layout for filter objects

why:
  Need to store the filter ID with the object

* Implement reverse [] index on fifo

why:
  An integer index argument on `[]` retrieves the QueueID (label) of the
  fifo item while a QueueID argument on `[]` retrieves the index (so
  it is inverse to the former variant).

* Provide iterator over filters as fifo

why:
  This iterator goes along the cascased fifo structure (i.e. in
  historical order)
2023-09-05 14:57:20 +01:00
Jordan Hrycaj 465d694834
Aristo db implement filter storage scheduler (#1713)
* Rename FilterID => QueueID

why:
  The current usage does not identify a particular filter but uses it as
  storage tag to manage it on the database (to be organised in a set of
  FIFOs or queues.)

* Split `aristo_filter` source into sub-files

why:
  Make space for filter management API

* Store filter queue IDs in pairs on the backend

why:
  Any pair will will describe a FIFO accessed by bottom/top IDs

* Reorg some source file names

why:
  The "aristo_" prefix for make local/private files is tedious to
  use, so removed.

* Implement filter slot scheduler

details:
  Filters will be stored on the database on cascaded FIFOs. When a FIFO
  queue is full, some filter items are bundled together and stored on the
  next FIFO.
2023-08-25 23:53:59 +01:00