And rework the init functions at the same time to reflect that data
files can now be placed under a subdirectory.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I'm going to create a unified struct file that should be able to share
code between data and cache files. The first step is to push the old
structure to the side so it can still be used in other places.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This is useful for user playlists so they can store their playlist-id
directly, letting us remove the entire playlist_get_id() function.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
Sometimes database entry keys change, so this gives us a way to update
them in the database keys hash table.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This was added so tracks could bump the libary tag size. Now that the
size field has been removed, we can remove this function.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This makes file versioning way easier, since every file will have the
same version. I'll still need to manage minimum-supported versions, but
that shouldn't be too difficult going forward.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
Removing items from the database leaves a NULL pointer "hole" that is
never filled in. This doesn't affect correctness, but it could be
wasteful as items are added and removed. This patch adds a function to
defragment the database without changing the order of items.
Implements #66: Add support for rebalancing databases
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I plan to change the file format of some tags, so add versioning so we
can change things at different times.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I need to have integer playlist ids to store into the settings database
once I allow changing the default playlist.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
It doesn't make sense to have a subdirectory with a single file. Let's
move it back to core/
Implements #45: Move database into core/
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
We now have an interface for controlling everything through struct
db_entry, so let's just have the database store a db_entry directly.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Track tags need to add themselves to the filter index and update the
library track count once added to the database.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
The Track tag needs to do some cleanup when removed from a database, so
we need to use this op when removing items.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
For allocating new database items from a given key. Tracks do not need
this function since we have special handling for creation and insertion.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This function is similar to Linux's list_for_each_safe(), and lets you
iterate over a database even if the current item is removed.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I also take the chance to modify this function slightly. Now, if a
matching item could not be found a new item will be allocated.
I added the new function db_get() if callers just want to get an item
without allocating.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This variable should only be set by the Database when a DatabaseItem is
first created. This means I should hide _index from the rest of the
world to prevent accidental modifications. I also add an accessor
function for other code that needs to read _index.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I transfer everything from my DESIGN file into doxygen, and then remove
the section from DESIGN.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I plan to introduce a new lib/ that sits between the gui and the backend
files (similar to how glibc sits between the kernel and userspace).
This gets the rename out of the way before I change my mind again.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Anna Schumaker
Anna Schumaker