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>
I also introduced a file_readf() function to make it easier to read a
formatted string from the file.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I also introduced a file_writef() function to make it easier to write a
formatted string to the file.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
And replace it with the function file_init(). Let's take this chance to
rework parts of the unit test as well.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This change also lets me remove the destructor, since code is expected
to call file_close() when IO is complete.
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 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>
