Either g_type_register_static_simple (used by G_DEFINE_TYPE_EXTENDED)
and G_IMPLEMENT_INTERFACE use automatic variables for GTypeInfo and
GInterfaceInfo structs, while tutorials and source code often use
static variables. This commit consistently adopts the former method.
https://bugzilla.gnome.org/show_bug.cgi?id=600161
When the 'conditional' parameter is TRUE, the queue will only be frozen
(ie: have its freeze count increase by one) if it is already frozen.
This will allow us to avoid a freeze-notify-thaw in the case that we
just want to notify on a single property.
Another approach may have been to add an is_frozen() type call and avoid
even increasing the freeze count at all in this case. Unfortunately,
I'm not totally sure what is the exact expected semantics of
simultaneous notifications in multiple threads and this may interact
badly with someone freezing or thawing in between our check and
emission.
Lift the check-if-READABLE and redirect-target logic from out of
g_object_notify_queue_add() into its own function, get_notify_pspec().
Use that function at the site of our two calls to
g_object_notify_queue_add().
This was done as a separate file before, and #include brought it into
gobject.c. That's a bit mad, so stop doing that.
Unfortunately, the insanity steps up a level: gobjectnotifyqueue.c is
installed in the public include dir, so we can't just get rid of it
entirely.
Similar to G_PARAM_DEPRECATED. It will warn only for users of the
signals, so a signal can still be emited without warning, for
compatibility reasons.
Apparently, there is no way user flags could have been used before,
so that shouldn't break anyone.
https://bugzilla.gnome.org/show_bug.cgi?id=663581
Some links were broken due to typos, because functionality was removed
in GLib 2.0 or for various other reasons. Fix up as many of them as is
reasonable.
- remove all inline assembly versions
- implement the atomic operations using either GCC intrinsics, the
Windows interlocked API or a mutex-based fallback
- drop gatomic-gcc.c since these are now defined in the header file.
Adjust Makefile.am accordingly.
- expand the set of operations: support 'get', 'set', 'compare and
exchange', 'add', 'or', and 'xor' for both integers and pointers
- deprecate g_atomic_int_exchange_and_add since g_atomic_int_add (as
with all the new arithmetic operations) now returns the prior value
- unify the use of macros: all functions are now wrapped in macros that
perform the proper casts and checks
- remove G_GNUC_MAY_ALIAS use; it was never required for the integer
operations (since casting between pointers that only vary in
signedness of the target is explicitly permitted) and we avoid the
need for the pointer operations by using simple 'void *' instead of
'gpointer *' (which caused the 'type-punned pointer' warning)
- provide function implementations of g_atomic_int_inc and
g_atomic_int_dec_and_test: these were strictly macros before
- improve the documentation to make it very clear exactly which types
of pointers these operations may be used with
- remove a few uses of the now-deprecated g_atomic_int_exchange_and_add
- drop initialisation of gatomic from gthread (by using a GStaticMutex
instead of a GMutex)
- update glib.symbols and documentation sections files
Closes#650823 and #650935
I couldn't tell from reading the documentation whether I had to pass in
an uninitialized value, or a value initialized to the exact type, or
something else. It turns out (from reading the source) that you have to
pass in an initialized value, but you can use any type to which the
property's actual type can be transformed.
So, let's document this.
The code section guarded with toggle_refs_mutex includes a call to
g_object_unref(), which may call toggle_refs_notify(). As the latter
tries to acquire the same mutex, glib locks up.
https://bugzilla.gnome.org/show_bug.cgi?id=632884
Since we added g_object_notify_by_pspec(), an efficient way to install
and notify properties relies on storing the GParamSpec pointers inside
a static arrays, like we do for signal identifiers.
Instead of multiple calls to g_object_class_install_property(), we
should have a single function to take the static array of GParamSpecs
and iterate it.
https://bugzilla.gnome.org/show_bug.cgi?id=626919
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
This should fix bug #628952.
Don't include glib/gdatasetprivate.h directly. Especially don't define
GLIB_COMPILATION when doing that, as that causes breakage on Windows
because of the variable dllimport/dllexport stuff in gtypes.h that
checks GLIB_COMPILATION. That macro really should be defined only when
compiling code that goes into the libglib DLL. Otherwise the compiler
thinks that variables that should be imported from libglib are
actually defined in the code being compiled.
Just call g_atomic_pointer_get() as such, don't bother with
G_DATALIST_GET_FLAGS.
Signed-off-by: Tor Lillqvist <tml@iki.fi>
The gdatasetprivate.h header includes gatomic.h directly. It all works
well in GLib, but inside GObject it will trigger the single inclusion
guard.
Since this is a private header, and it's kind of a special case, one way
to fix it is to declare GLIB_COMPILATION around it and fool the single
inclusion guard in gatomic.h into thinking we're compiling GLib and not
GObject.
g_object_notify_by_pspec() will emit the "notify" signal on the given
pspec, short-circuiting the hash table lookup needed by
g_object_notify(). The suggested and documented way of using
g_object_notify_by_pspec() is similar to the way of emitting signals
with their ID.
Emission tests (with no handler attached to the notify signal) show a
10-15% speedup over using g_object_notify().
https://bugzilla.gnome.org/show_bug.cgi?id=615425
This adds static markers and systemtap tapsets for:
* type creation
* object lifetimes (creation, ref, unref, dispose, finalize)
* signal creation and emission
Signal emissions and finalization marker have a corresponding
*_end (or *-end in dtrace) version that is when the corresponding
operation is finished.
https://bugzilla.gnome.org/show_bug.cgi?id=606044
