Previously events used to use class name as a prefix and ignored eo_prefix
when specified. This is no longer the case. Events follow eo_prefix by default
now. In order to get around this for classes where this is undesirable, a new
field event_prefix was added which takes priority over eo_prefix. If neither
is specified, class name is used like previously.
@feature
This commit breaks behaviour!
Re-parenting no longer detaches composite objects, so watch out.
Now you can have an object be a composite object of an object although
it's not its child. This allows widgets to do things like having an
object as the child of a child object while still making it a composite
object to the main object.
With this change, composite objects don't keep a reference to the child,
but instead composite "bonds" are implicitly removed when either the
parent or the child are destructed.
Imagine this. You have an object. You pass this object handle as a
message to another thread. Let's say it's not a UI object, so
something you might expect to be able to be accessed from multiple
threads. In order to keep the object alive you eo_ref() it when
placing the message on a queue and eo_unref() it once the message is
"done" in the other thread. If the original sender unref()ed the
object before the message is done, then the object will be destroyed
in the reciever thread. This is bad for objects "expecting" not to be
destroyed outside their owning thread.
This allows thius situation to be fixed. A constructor in a class of
an object can set up a delete interceptor. For example if we have a
"loop ownership" class you multi-ple-inherit from/use as a mixin. This
class will set up the interceptor to ensure that on destruction if
pthread_self() != owning loop thread id, then add object to "delete
me" queue on the owning loop and wake it up. the owning loop thread
will wake up and then process this queue and delete the queued objects
nicely and safely within the "owning context".
This can also be used in this same manner to defer deletion within a
loop "until later" in the same delete_me queue.
You can even use this as a caching mechanism for objects to prevernt
their actual destruction and instead place them in a cached area to be
picked from at a later date.
The uses are many for this and this is a basic building block for
future EFL features like generic messages where a message payload
could be an eo object and thus the above loop onwership issue can
happen and needs fixing.
This adds APIs, implementation, documentation (doxy reference) and tests.
@feature
The syntax is described in: https://phab.enlightenment.org/w/eo/
Summary:
eo_do(obj, a_set(1)) -> a_set(obj, 1)
eo_do_super(obj, CLASS, a_set(1)) -> a_set(eo_super(obj, CLASS), 1)
eo_do_*_ret() set of functions are no longer needed.
This is the first step, the next step would be to also fix up eo_add()
which currently still uses the old syntax and is not 100% portable.
@feature
This is another cleanup in perparation for the Eo stable release.
This is no longer needed thanks to the proper error reporting with
eo_constructor()'s new return value.
The finalizer change cleans it up a bit so it catches more cases/issues.
This also means that the finalizer cleans up the object in all cases,
and not only some.
@feature.
Before this fix, when a deletion was invoked twice on an object, a
wrong message ("...You wrongly call eo_unref() within a destructor...")
was printed. This was caused by the del_triggered flag that was not
resetted when the destruction finished.
This patch fixes this behavior by printing the right message on a double
deletion.
For some reason, they were normal functions instead of eo functions,
which makes them harder to bind, less safe, and just wrong.
This commit fixes that.
Now it's more clear and consistent. This commit complements the previous
eo_add commit (a7560dbc61).
Now eo_add should be matched with eo_del
eo_ref with eo_unref
eo_add_ref with eo_unref + eo_del
Essentially, the change is that if you have the ref to an object, you
need to unref it. Thus making ref/unref unneeded for most people who use
things (carefully) in c. If however, you would like to delete an object
previously created by you, you should eo_del (counter-part to eo_add).
It's still recommended you ref/unref when dealing with objects in
scopes, as you can't know when an object might just get deleted as a
by-product of another call.
This fixes an issue found by JackDanielZ.
Before this change eo_add() used to create an object with 1 ref, and if
the object had a parent, a second ref.
Now, eo_add() always returns an object with 1 ref, and eo_add_ref()
preserves the old behaviour (for bindings).
eo_unref now un-parents if refcount is 0, and eo_del() is an alias for
eo_unref (will change to be a way to ensure an object is dead and goes
to zombie-land even if still refed).
This enables checking if an object is being created, or has already been
finalized. This is useful in functions that you want to allow
only during the creation phase (i.e inside the eo_add()).
Comp objects are rare, and since we allow using classes as interfaces,
we end up allocating a lot of memory for something we don't even use.
That's why it was a linked list in the first place, and that's why it
should remain a list.
This is almost a complete revert. I reverted the code itself, and the
intent (use of array instead of list), but not the tests, or the new
return value added to comp_detach, which is useful.
This reverts commit ef09ef7489.
This function lets you hook at the end of eo_add and override it for a
class. This is essentially the first step towards killing custom
constructors. Instead of having a custom constructor, you should just
do:
eo_add(CLASS, parent, a_set(3), b_set("eou"));
eo_constructor is called at the beginning for pre-init things.
eo_finalize is called at the end, for actually finalizing and doing
things. This cleans up the API and possibly saves a lot of things that
would have been stupid and slow in the past, like loading an elm widget
with an existing theme, and then changing the theme.
** This breaks Eo ABI, please recompile elementary and everything else that
creates eo objects.
@feature
We want to have normal functions as non-default constructors, not va_arg
ones. What we should do is split the object creation to two parts again.
The creation, the constructing (changes using the macro) and the
verification/end part that checks the constructor has been called.
This reverts commit 2ff2ce1894f173b306a896bda595e1a7768c074d.
as we don't support multiple composites of the same class,
and know at class elaboration how many composites we should have,
we can create the composites array and pack it at the end of the object.
as we don't support multiple composites of the same class,
and know at class elaboration how many composites we should have,
we can create the composites array and pack it at the end of the object.
Being annoyed by different types of eina critical macros - CRI, CRIT,
CRITICAL -, I concluded to unify them to one. Discussed on IRC and
finally, CRI was chosen to meet the consistency with other macros -
ERR, WRN, INF, DBG - in terms of the number of characters.
If there is any missing bits, please let me know.
This reverts commit ee1b0833ed
I did it manually because the code changed too much.
We actually want this type, it makes things more clear and easier to
understand.
Daniel Kolesa
Tom Hacohen
Carsten Haitzler
Jean-Philippe Andre
Daniel Zaoui
Jérémy Zurcher
Lukasz Stanislawski
Daniel Juyung Seo
Cedric Bail