Commit Graph

1863 Commits

Author SHA1 Message Date
Sebastian Dröge
730cc864ef Merge branch 'jomccambridge-master-patch-47329' into 'master'
Update signal accumulator docs.

Closes #2352

See merge request GNOME/glib!2058
2021-05-06 14:00:19 +00:00
Nishal Kulkarni
98050b756b gtype: use G_GNUC_CHECK_VERSION
Replace `__GLIBC__` with `G_GNUC_CHECK_VERSION`
2021-04-29 17:40:14 +05:30
John McCambridge
e010624309 Update signal accumulator docs.
Reflect that a FALSE returned from the accumulator will still emit signals in the RUN_CLEANUP state.
Fixes #2352
2021-04-29 09:41:44 +01:00
Marco Trevisan (Treviño)
b8a9f4b436 boxed: Register GPatternSpec as boxed type 2021-04-27 16:25:09 +02:00
Philip Withnall
856aeba9e4 glib-mkenums: Parse and skip deprecation/availability annotations
Teach `glib-mkenums` how to parse and ignore:
 - `GLIB_AVAILABLE_ENUMERATOR_IN_x_xx`
 - `GLIB_DEPRECATED_ENUMERATOR_IN_x_xx`
 - `GLIB_DEPRECATED_ENUMERATOR_IN_x_xx_FOR(x)`

Future work could expose the deprecation/availability information as
substitutions in the template file, but this commit does not do that.

It does, however, add some unit tests for the annotations.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Fixes: #2327
2021-03-11 13:37:49 +00:00
Aleksandr Mezin
f346b9c8ce glib-genmarshal: close output file
Close output file to ensure all buffered output actually gets written.

Otherwise, glib-genmarshal output is sometimes empty (for example, when trying
to build gdk-pixbuf on Windows, with Meson installed from .msi package).

argparse.FileType doesn't get closed automagically when the script exits:
https://bugs.python.org/issue13824

Fixes https://gitlab.gnome.org/GNOME/glib/-/issues/2341
2021-03-03 12:24:29 +06:00
Iain Lane
552b8fd862
glib/gmacros.h: Move <type_traits> include to consumers
When included inside an `extern "C"` block, this causes build failures
that look something like:

  /usr/include/c++/10/type_traits:2930:3: error: template with C linkage
   2930 |   template<typename _Fn, typename... _Args>
        |   ^~~~~~~~
  ../../disas/arm-a64.cc:20:1: note: ‘extern "C"’ linkage started here
     20 | extern "C" {
        | ^~~~~~~~~~

Commit 4273c43902 made this opt in for
projects which are defining `GLIB_VERSION_MIN_REQUIRED`, but the include
of `<type_traits>` via `gmacros.h` was not included in this. If we move
the include out to the places where `glib_typeof` is called, we can make
it covered by this macro too, and save a few consumers from FTBFSing.

That also means that, if you don't want to fix your use of the headers,
and as long as this version is sufficient for you, a quick workaround is
to define `GLIB_VERSION_MIN_REQUIRED` to `GLIB_VERSION_2_66` or lower.

Suggested by Simon McVittie.

Alternative to: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1935
Fixes: https://gitlab.gnome.org/GNOME/glib/-/issues/2331
2021-02-25 15:33:59 +00:00
Philip Withnall
f10101b909 gobject: Use g_memdup2() instead of g_memdup() in obvious places
Convert all the call sites which use `g_memdup()`’s length argument
trivially (for example, by passing a `sizeof()`), so that they use
`g_memdup2()` instead.

In almost all of these cases the use of `g_memdup()` would not have
caused problems, but it will soon be deprecated, so best port away from
it.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
2021-02-04 14:13:21 +00:00
Sebastian Dröge
e38982df4b Merge branch 'atomic-typeof' into 'master'
Define glib_typeof with C++11 decltype()

Closes #2226

See merge request GNOME/glib!1715
2021-02-02 10:51:50 +00:00
Thomas Haller
8416211231 gsignal: use g_clear_signal_handler() macro to implement g_clear_signal_handler() function
We have a "good" implementation of g_clear_signal_handler() in
form of a macro. Use it, and don't duplicate the code.

Also add a comment to the documentation that "instance" in fact must
not point to a valid GObject instance -- if the handler ID is unset.

Also reword the documentation about the reasoning for why a macro
version exists. The reason is not to use the function "without
pointer cast". I don't think the non-macro version requires any
pointer cast, since "instance" is a void pointer. Was this referring
to the handler_id_ptr? That doesn't seem right either, because the
caller should always provide a "gulong *" pointer and nothing else.
2021-02-01 09:45:46 +01:00
Thomas Haller
7777f3bdbe gsignal: let g_clear_signal_handler() evaluate argument only once
Preferably macros behave function-like to minimize surprises. That
means for example that they evaluate all arguments exactly once.

Rework g_clear_signal_handler() to assign the macro parameters
to auto variables so they are accessed exactly once.

Also, drop the static assert for the size of (*handler_id_ptr).
As we now assign to a "gulong *" pointer, the compiler already
checks the types. In fact, the check is now stricter than before.
Previously it would have allowed a pointer to a "signed long".
This is a change in behavior of the macro and the stricter compile
check could cause a build failure with broken code.

Also, clear the handler id first, before calling
g_signal_handler_disconnect(). Disconnecting a signal invokes the
destroy notify, which can have side effects. It just feels cleaner
to first reset the *_handler_id_ptr, before those side effects
can happen. Of course, in practice it makes little difference.
2021-02-01 09:45:16 +01:00
Thomas Haller
cc4ffe4742 gsignal: use stack allocate temporary buffer in g_signal_new_valist()
g_signal_new_valist() is called by g_signal_new(), which is probably
the most common way to create a signal.

Also, in almost all cases is the number of signal parameters small.

Let's optimize for that by using a stack allocated buffer if we have
few parameters.
2021-02-01 09:43:29 +01:00
Xavier Claessens
4273c43902 glib_typeof: It is an API break that should be opt-in
That changes the return type of functions like g_object_ref() that can
break C++ applications like Webkit. Note that it is not an ABI break.

It must thus be opt-in the same way we did when adding this to
g_object_ref() for GNU C compilers in the first place. Unfortunately it
cannot be done directly in gmacros.h because GLIB_VERSION_2_68 is not
defined there, and gversionmacros.h cannot be included there because
there is some strict ordering in which those headers must be included.

This means that applications that does not define
GLIB_VERSION_MIN_REQUIRED will still get an API break, so we encourage
them to declare their minimum requirement to avoir such issues in the
future too.
2021-01-27 09:26:39 -05:00
Philip Withnall
d4a875d8cd gtype: Improve formatting of GType documentation
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
2021-01-20 15:42:55 +00:00
Emmanuele Bassi
8199fd65a9 Merge branch '2227-gobject-annotation-fixes' into 'master'
Add more GIR annotations to gparam.c and gsignal.c

See merge request GNOME/glib!1804
2021-01-19 11:35:15 +00:00
Emmanuele Bassi
e97ebfe628 Fix the transfer annotations for GClosure constructors
The GClosure constructors in GObject return an instance with a floating
reference.

Fixes: #2299
2021-01-19 11:36:01 +02:00
Matthias Klumpp
1261461840 mkenums: Support public/private trigraphs again
This change was previously implemented in
9ba17d511e but got dropped during the
Python conversion of the Perl script.

See the commit message of this commit as well as
https://bugzilla.gnome.org/show_bug.cgi?id=782162
for more information.
This patch also adds a new test so we don't loose this feature again.
2021-01-10 20:51:54 +01:00
Matthias Klumpp
ca28a3fc29 trivial: Formatting changes 2021-01-10 18:59:45 +01:00
Timm Bäder
423bfa87d5 gparam: Remove pspec_list_remove_overridden_and_redirected()
Instead of collecting more pspecs than we need, just don't add them to
the list(s) in the first place.
2020-12-31 14:58:34 +01:00
Sebastian Dröge
3581eda9a2 gsignal: Allow return types for RUN_FIRST-only signals too
Also adds a test that checks that the G_SIGNAL_RUN flags are handled
correctly and the class signal handler is called at the right times.

Fixes https://gitlab.gnome.org/GNOME/glib/issues/513
2020-12-21 17:22:51 +00:00
Sebastian Dröge
9d1455444c gsignal: Add a new GSignalFlag to mark the first run of an accumulator function
Also add a test for signal accumulators. There was none before, and this
one now also covers the new flag.

Fixes https://gitlab.gnome.org/GNOME/glib/issues/514
2020-12-21 17:10:19 +00:00
Emmanuel Fleury
6ca38ccdd4 Fix missing initializer warning in gobject/tests/ifaceproperties.c:base_object_get_type()
gobject/tests/ifaceproperties.c: In function ‘base_object_get_type’:
gobject/tests/ifaceproperties.c:321:1: error: missing initializer for field ‘value_table’ of ‘GTypeInfo’ {aka ‘const struct _GTypeInfo’}
  321 | static DEFINE_TYPE_FULL (BaseObject, base_object,
      | ^~~~~~
In file included from gobject/gobject.h:24,
                 from gobject/gbinding.h:29,
                 from glib/glib-object.h:22,
                 from gobject/tests/ifaceproperties.c:21:
gobject/gtype.h:1063:26: note: ‘value_table’ declared here
 1063 |   const GTypeValueTable *value_table;
      |                          ^~~~~~~~~~~
2020-12-16 23:59:17 +01:00
Emmanuel Fleury
ff5d09af5e Fix missing initializer warning in gobject/tests/ifaceproperties.c:test_iface_get_type()
gobject/tests/ifaceproperties.c: In function ‘test_iface_get_type’:
gobject/tests/ifaceproperties.c:144:1: error: missing initializer for field ‘class_finalize’ of ‘GTypeInfo’ {aka ‘const struct _GTypeInfo’}
  144 | static DEFINE_IFACE (TestIface, test_iface, NULL, test_iface_default_init)
      | ^~~~~~
In file included from gobject/gobject.h:24,
                 from gobject/gbinding.h:29,
                 from glib/glib-object.h:22,
                 from gobject/tests/ifaceproperties.c:21:
gobject/gtype.h:1054:26: note: ‘class_finalize’ declared here
 1054 |   GClassFinalizeFunc     class_finalize;
      |                          ^~~~~~~~~~~~~~
2020-12-16 23:57:08 +01:00
Emmanuel Fleury
805053d09b Fix signedness warning in gobject/tests/signals.c:test_introspection()
gobject/tests/signals.c: In function ‘test_introspection’:
gobject/tests/signals.c:1180:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
 1180 |   for (i = 0; i < n_ids; i++)
      |                 ^
2020-12-16 23:26:34 +01:00
Emmanuel Fleury
176b204754 Fix signedness warnings in gobject/tests/properties.c:properties_get_property()
gobject/tests/properties.c: In function ‘properties_get_property’:
gobject/tests/properties.c:562:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
  562 |   for (i = 0; i < G_N_ELEMENTS (test_props); i++)
      |                 ^
gobject/tests/properties.c:583:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
  583 |   for (i = 0; i < G_N_ELEMENTS (test_props); i++)
      |                 ^
2020-12-16 23:26:34 +01:00
Philip Withnall
db70edb6ec Merge branch 'fix_more_warnings' into 'master'
Fix more warnings

See merge request GNOME/glib!1773
2020-12-16 11:45:41 +00:00
Emmanuel Fleury
8fb696e003 Fix missing initializer warning in gobject/tests/dynamictests.c:test_module_get_type()
gobject/tests/dynamictests.c: In function ‘test_module_get_type’:
gobject/tests/dynamictests.c:97:7: error: missing initializer for field ‘value_table’ of ‘GTypeInfo’ {aka ‘const struct _GTypeInfo’}
   97 |       };
      |       ^
In file included from gobject/gobject.h:24,
                 from gobject/gbinding.h:29,
                 from glib/glib-object.h:22,
                 from gobject/tests/dynamictests.c:23:
gobject/gtype.h:1063:26: note: ‘value_table’ declared here
 1063 |   const GTypeValueTable *value_table;
      |                          ^~~~~~~~~~~
2020-12-16 10:56:32 +01:00
Emmanuel Fleury
34cb225543 Fix missing initializer warning in gobject/gparam.c:g_param_type_register_static()
gobject/gparam.c: In function ‘g_param_type_register_static’:
gobject/gparam.c:1434:3: error: missing initializer for field ‘value_table’ of ‘GTypeInfo’ {aka ‘struct _GTypeInfo’}
 1434 |   };
      |   ^
In file included from gobject/gvalue.h:26,
                 from gobject/gparam.h:26,
                 from gobject/gparam.c:26:
gobject/gtype.h:1063:26: note: ‘value_table’ declared here
 1063 |   const GTypeValueTable *value_table;
      |                          ^~~~~~~~~~~
2020-12-16 10:56:32 +01:00
Emmanuel Fleury
dd16d1e879 Fix missing initializer warning in gobject/gtypemodule.c:g_type_module_get_type()
gobject/gtypemodule.c: In function ‘g_type_module_get_type’:
gobject/gtypemodule.c:154:7: error: missing initializer for field ‘value_table’ of ‘GTypeInfo’ {aka ‘const struct _GTypeInfo’}
  154 |       };
      |       ^
In file included from gobject/gtypeplugin.h:24,
                 from gobject/gtypemodule.c:22:
gobject/gtype.h:1063:26: note: ‘value_table’ declared here
 1063 |   const GTypeValueTable *value_table;
      |                          ^~~~~~~~~~~
2020-12-16 10:56:32 +01:00
Emmanuel Fleury
12ec1eb062 Fix missing initializer warning in gobject/gtypeplugin.c:g_type_plugin_get_type()
gobject/gtypeplugin.c: In function ‘g_type_plugin_get_type’:
gobject/gtypeplugin.c:91:7: error: missing initializer for field ‘class_init’ of ‘GTypeInfo’ {aka ‘const struct _GTypeInfo’}
   91 |       };
      |       ^
In file included from gobject/gtypeplugin.h:24,
                 from gobject/gtypeplugin.c:20:
gobject/gtype.h:1053:26: note: ‘class_init’ declared here
 1053 |   GClassInitFunc         class_init;
      |                          ^~~~~~~~~~
2020-12-16 10:56:32 +01:00
Emmanuel Fleury
cc7540909f Fix signedness warning in gobject/gtype.c:iface_node_has_available_offset_L()
gobject/gtype.c: In function ‘iface_node_has_available_offset_L’:
gobject/gtype.c:1288:42: error: comparison of integer expressions of different signedness: ‘gsize’ {aka ‘long unsigned int’} and ‘int’
 1288 |   if (G_ATOMIC_ARRAY_DATA_SIZE (offsets) <= offset)
      |                                          ^~
2020-12-16 10:56:24 +01:00
Philip Withnall
39f33412db python: Reformat some files to keep style-check-diff happy
The version of `black` on the CI server wanted these changes. Make them
to keep the `style-check-diff` CI job from constantly failing.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
2020-12-12 18:40:57 +00:00
Philip Withnall
7ad0c3a0f4 gsignal: Add (closure) and (destroy) annotations
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
2020-12-12 18:08:40 +00:00
Philip Withnall
d2cd34969a gparam: Fix transfer annotation for g_param_spec_internal()
`GParamSpec`s are floating by default.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
2020-12-12 17:59:45 +00:00
Philip Withnall
181a12c393 gsignal: Add missing (transfer) and (nullable) return annotations
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Helps: #2227
2020-12-11 23:49:30 +00:00
Philip Withnall
c7a7dd9ae3 gparam: Add missing (transfer) and (nullable) return annotations
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Helps: #2227
2020-12-11 23:49:14 +00:00
Philip Withnall
a9e3e3715a genums: Add missing (transfer) and (nullable) return annotations
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Helps: #2227
2020-12-11 23:48:35 +00:00
Sebastian Dröge
e82eb490fe Handle the case of g_object_run_dispose() in GBinding
When this is called on the source or target, the weak notify of the
corresponding object is called without the GWeakRef being cleared.
See https://gitlab.gnome.org/GNOME/glib/-/issues/2266 for that issue.

This means that a strong reference to these zombie objects can be
retrieved from the GWeakRefs and the previous assumption that this can't
happen was wrong. Remove the assertion for that accordingly and handle
this case.

Specifically, all signal handlers and weak notifies of the object are
already gone and must not be disconnected/removed a second time, or
otherwise memory corruption would be caused. Instead just set the
GWeakRef to NULL and handle it otherwise as if the GWeakRef didn't give
a strong reference to begin with.

Fixes https://gitlab.gnome.org/GNOME/glib/-/issues/2265
2020-12-08 18:41:27 +02:00
Sebastian Dröge
a2de4b2479 Clarify in g_object_weak_ref() docs that the callback is called during disposing and not finalizing
This especially has the effect that any GWeakRefs to the object will not
necessarily be set to NULL yet if called as part of
g_object_run_dispose() and not as part of g_object_unref().
2020-12-08 18:09:50 +02:00
Emmanuel Fleury
bbb9ef19ce Fix signedness warnings in gobject/tests/value.c:test_valuearray_basic()
gobject/tests/value.c: In function ‘test_valuearray_basic’:
gobject/tests/value.c:253:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
  253 |   for (i = 0; i < a->n_values - 1; i++)
      |                 ^
gobject/tests/value.c:257:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
  257 |   for (i = 0; i < a->n_values; i++)
      |                 ^
2020-12-05 17:11:55 +01:00
Philip Withnall
5e1d368eec Merge branch 'binding-threadsafe-2' into 'master'
Make GBinding thread-safe (alternative approach)

See merge request GNOME/glib!1745
2020-12-04 14:23:10 +00:00
Sebastian Dröge
52261f0abe Deprecate g_binding_get_source() and get_target() in favour of dup_source() and dup_target()
The old functions are not thread-safe by design.
2020-11-26 19:51:56 +02:00
Sebastian Dröge
7367c5d367 Release GBinding transform functions also when implicitly unbinding because source/target are finalized
This was inconsistently handled before and only explicit unbinding or
finalizing the binding would've previously released the transform
function. If the source/target were finalized while more strong
references to the binding still existed then the transform function
would stay alive and only the binding itself would be deactivated.
2020-11-26 19:51:56 +02:00
Sebastian Dröge
cc15c933b3 Add tests for GBinding thread-safety 2020-11-26 19:51:56 +02:00
Sebastian Dröge
d296ad435d Factor out common GBinding unbind code into a separate function
This was previously duplicated in two places.
2020-11-26 19:30:54 +02:00
Sebastian Dröge
98bbe4f4d1 Make transform function handling in GBinding thread-safe
Unbinding can happen from one thread while a property notification is
being handled concurrently in another one.

To solve this, introduce a reference counter for the transform function
that ensures that it always stays valid while in use and protect access
to the one stored inside the binding with the unbind mutex.
2020-11-26 19:30:48 +02:00
Sebastian Dröge
1daee6ac64 Make explicit/implicit GBinding unbinding thread-safe
It's possible for g_binding_unbind() to be called at the same time as
one (or both) of source and target are being finalized. The resulting
unbinding needs to be protected with a mutex to ensure that it only
happens exactly once.

As the first reference is owned by both weak notifies and the caller of
g_object_bind_property(), additional indirections are needed to ensure that
unreffing the first reference after creation still unbinds the binding
as before. This seems to be a common code pattern and how this was
intended to be used, but is only safe in single-threaded contexts as it
relies on both the source and target object to be still alive.

Add a lot of comments to the code about all these dependencies and a
couple of assertions to ensure they hold valid.

Also document that inconsistent reference ownership handling of
g_binding_unbind() that makes it unfit for automatically generated
language bindings.
2020-11-26 16:15:36 +02:00
Sebastian Dröge
c8c829fa42 Add g_binding_dup_target() and g_binding_dup_source()
These new getters prevent the source/target from simply disappearing if
they're finalized from another thread in the meantime.
2020-11-26 10:49:23 +02:00
Sebastian Dröge
51ee5cf1c2 Use GWeakRef in GBinding
This makes GBinding slightly more thread-safe as the source/target can't
simply disappear.
2020-11-26 10:49:18 +02:00
Philip Withnall
77361ef45e Merge branch 'fix_extra_warnings' into 'master'
Fix more warnings

See merge request GNOME/glib!1765
2020-11-24 15:37:21 +00:00