The validate() vfunc for GParamSpecParam returns FALSE for empty GValue,
which means the is_valid() vfunc should do the same.
This avoids a segfault when calling g_param_value_is_valid() on a
GParamSpecParam.
Fixes: #2770
- Insert missing word "from".
- Remove space between function name and "()" so syntax highlighting
can recognise it as a function.
- Avoid "you"/"your" when discussing the reentrancy issues of regular
UNIX signal handlers, because it gives the false impression that
these issues are applicable to g_unix_signal_source_new().
Unrelated:
- Fix missing space in documentation of g_signal_new_class_handler().
If a deprecated property only gets set because it is G_PARAM_CONSTRUCT
or G_PARAM_CONSTRUCT_ONLY, then there is nothing for the library user
to fix, and we should not emit a deprecation warning.
Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/2748
Signed-off-by: Simon McVittie <smcv@collabora.com>
Those tools are not needed at runtime for typical applications,
distributions typically package them separately.
This makes `meson install --tag runtime` skip installation of those
tools. Omitting `--tag` argument will still install them, as well as
with `--tag bin,bin-devel`.
See https://mesonbuild.com/Installing.html#installation-tags.
GCC isn't smart enough to recognise that the assertion on the size of
N_PROPERTIES also affects the assertion on the GParamSpec array access,
so we need to coalesce the two checks into one to avoid an array-bounds
compiler warning.
GParamSpec nicks and blurbs are effectively a deprecated feature,
or at least unused by most libraries these days. Since a number
of C libraries (i.e. GTK4) have started to null these out, annotate
them as `(nullable)` so bindings can do the same.
Closes#2719
All of these warnings indicate programmer error, so critical is most
appropriate here.
Exceptions: deprecation warnings are just warnings. Also, warnings that
are worded with uncertainty can remain warnings rather than criticals.
The prefix for GMarkupParseFlags enumeration members is G_MARKUP; this
means that G_MARKUP_PARSE_FLAGS_NONE gets split into
GLib.MarkupParseFlags.PARSE_FLAGS_NONE by the introspection scanner.
The `/*< nick=none >*/` trigraph attribute is a glib-mkenum thing, and
does not affect the introspection scanner; it would also only affect the
GEnumValue nickname, which is not used by language bindings to resolve
the name of the enumeration member. Plus, GMarkupParseFlags does not
have a corresponding GType anyway.
ginsttest-runner defaults to timing out each test after 5 minutes,
but gobject/tests/performance/performance.c defaults to running each
of 18 tests for 15 seconds. The result is close enough to 5 minutes
that the setup overhead is enough to make it time out.
We're only running these tests to prove that they still work, not to
get meaningful performance numbers, so cut them down to 1 second per
test-case (the result of which is that performance.c takes about a
minute).
Signed-off-by: Simon McVittie <smcv@collabora.com>
We don't need a cpp toolchain for building glib so lets just
automatically disable tests requiring one when not available.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
In g_signal_parse_name we were looking up for the signal from the name
keeping the mutex locked, but we then retrieved and checked the node
data without keeping the lock, so with another thread potentially
changing that.
We used to perform unneeded lock/unlock dances to perform block, unblock
and disconnect actions, and these were potentially unsafe because we
might have looped in data that could be potentially be changed by other
threads.
We could have also done the same by saving the handlers ids in a
temporary array and eventually remove them, but I don't see a reason for
that since we can just keep all locked without the risk of creating
deadlocks.
Coverity CID: #1474757, #1474771, #1474429
We're calling g_object_notify so let's not make gobject to call it for
us.
This also allows to test that changing a property again doesn't lead to
dispatch properties being called.
This tests that we call a custom dispatch_properties_changed,
even in the absence of connected notify handlers. (A recent
optimization broke that and caused a regression in GTK).
When I optimized GObject to skip property notification
in some cases, I looked for whether the class has a
custom notify vfunc. I overlooked that that
dispatch_properties_changed can also be customized,
and if it is, we better not skip change notification.
This showed up as breakage in the adjustment tests
in the GTK testsuite.
Add tests in which `g_object_run_dispose()` is called on the source or target
of a `GBinding`. After commit a4fa456e67,
the target test caused a failed assertion in `g_weak_ref_set()` that was not
found by the existing tests. Commit 94ba14d542
weakens the assertion to allow the test to succeed.
See https://gitlab.gnome.org/GNOME/glib/-/issues/2676
When weak references are being cleaned up, it is possible for the `qdata` for
both `quark_weak_locations` and `quark_weak_refs` to have been deallocated,
so that `g_datalist_id_get_data()` returns `NULL` for both. This happens
when `g_object_run_dispose()` is called for the target of a `GBinding`,
and is not an error.
See https://gitlab.gnome.org/GNOME/glib/-/issues/2676
We should mention glib-mkenums in the documentation for
G_DEFINE_ENUM_TYPE and G_DEFINE_FLAGS_TYPE.
We should also mention the macros in the documentation for glib-mkenums.
This way, developers can choose the most appropriate tool for their use
case.
While you might want to use automated tools like glib-mkenums to
generate enumeration types for your library, it's often not entirely
necessary to complicate your build system in order to handle a couple of
enumerations with few values.
Just like we have G_DEFINE macros for object, interface, pointer, and
boxed types, we should provide macros for defining enum and flags types.
We can use pointer exchange now to avoid doing two operations to switch
to the new data pointer.
Since we're asserting in case of invalid data, we can just do this check
at later point, without involving any different behavior.
This changes in the unlikely case that G_DISABLE_ASSERT is defined, as in such
case we should undo the operation.
This makes calls to g_signal_connect_data() and g_signal_connect_object()
with default flags more self-documenting.
Signed-off-by: Simon McVittie <smcv@collabora.com>
