This commit represents an API break to GAction in the following ways:
- the 'set_state' entry in the GActionInterface vtable has been
renamed to 'change_state'. The number and order of vtable items has
not otherwise changed.
- g_action_set_state() has been renamed to g_action_change_state() to
match the updated vtable entry.
- the "state" property of the GAction interface has been changed to
read-only to reflect the fact that g_action_set_state() no longer
exists.
- GSimpleActionClass has been hidden. GSimpleAction can no longer be
subclassed.
>> Rationale
g_action_set_state() has never been a true setter in the sense that
calling it will update the value of the "state" property. It has always
been closer to "request 'state' to be changed to this value" with
semantics defined by the implementor of the interface. This is why the
equivalent method in GActionGroup had its name changed from 'set' to
'change'. This change makes the two interfaces more consistent and
removes any implication about the effect that calling set_state() should
have on the 'state' property.
>> Impact
This incompatible API break was undertaken only because I strongly
suspect that it will go entirely unnoticed. If the break actually
affects anybody, then we will accommodate them (possibly going as far as
to revert this commit entirely).
The virtual table change only impacts implementors of GAction. I
strongly suspect that this is nobody (except for GSimpleAction).
The hiding of GSimpleActionClass only impacts impacts subclasses of
GSimpleAction. I strongly suspect that none of these exist.
The changing of the property to be read-only only affects people who
were trying to change the state by using GObject properties. I strongly
suspect that this is nobody at all.
The removal of the g_action_set_state() call is the most dangerous, but
I still suspect that it will impact nobody outside of GLib. If anybody
is impacted by this change then, at their request, I will reintroduce
the API as a deprecated alias for g_action_change_state().
To help cross compilation, don't use glib-genmarshal in our
build. This is easy now that we have g_cclosure_marshal_generic().
In gobject/, add gmarshal.[ch] to git (making the existing entry
points stubs).
In gio/, simply switch to using g_cclosure_marshal_generic().
https://bugzilla.gnome.org/show_bug.cgi?id=652168
... otherwise we might end up using the worker after it has been
freed. Reported by Dan Winship and Colin Walters.
This fix uncovered a bug in the /gdbus/nonce-tcp test case so "fix"
that as well to use a better way of having one thread wait for another
(using quotes for the word "fix" since it's pretty hackish to
busy-wait in one thread to wait for another).
Signed-off-by: David Zeuthen <davidz@redhat.com>
These will validate the resulting line, and throw a conversion error.
In practice these will likely be used by bindings, but it's good
for even C apps too that don't want to explode if that text file
they're reading into Pango actually has invalid UTF-8.
https://bugzilla.gnome.org/show_bug.cgi?id=652758
g_data_input_stream_read_line() and
g_data_input_stream_read_line_finish() don't do any encoding checks,
so we shouldn't call the returned value a "string" (which I'd like to
mean UTF-8). Annotate them as byte arrays and add encoding warnings
to the docstrings.
https://bugzilla.gnome.org/show_bug.cgi?id=652758
Matthew Bucknall pointed out
GDBusMessage does not serialize/deserialize double values correctly
on platforms with strict alignment constraints (in my particular
case, ARM926EJ-S).
This was reported in
https://bugzilla.gnome.org/show_bug.cgi?id=652197
Signed-off-by: David Zeuthen <davidz@redhat.com>
Rather than having the gtk-doc build machinery have a list of header
files to exclude, change the GLib build to dump a list of public
header files generated from the maintained Makefile.am files for
each of glib/, gobject/, gio/.
Also, for glib, always install glib-unix.h, even on non-Unix
platforms, for the same reason we install gwin32.h even on Unix.
https://bugzilla.gnome.org/show_bug.cgi?id=651745
See https://bugs.freedesktop.org/show_bug.cgi?id=37890#c6 where it was
discovered that dbus-send(1) actually doesn't work (either libdbus-1's
flush implementation or dbus-send(1)'s usage of it is broken) so it's
useful to have here.
Signed-off-by: David Zeuthen <davidz@redhat.com>
This avoids the generated types (e.g. ExampleAnimal, ExampleCat,
ExampleObject and ExampleObjectManagerClient) being referenced in the
core gio docs. This was requested by Matthias.
Signed-off-by: David Zeuthen <davidz@redhat.com>
I can't see a reason to spin until the worker thread runs, so don't.
This avoids ugly sched_yield() calls that show up in strace and
annoy me; the code is cleaner now too.
We now grab the types needed for the WebKit workaround in the
thread creation area, but only release them when the thread itself
exits.
https://bugzilla.gnome.org/show_bug.cgi?id=651650
In resolve_sync function in gthreadedresolver.c, if g_thread_pool_push
fails due to thread creation failure, we are just simply appending the
data to the queue of work to do. After the failure, we might wait
indefinitely in g_cond_wait. In case of g_thread_pool_push failure,
propagate the error so that this function does not blocks forever in
case of failure.
https://bugzilla.gnome.org/show_bug.cgi?id=651034
The fact that we return 0 here makes it clear that this
is not considered an error, so it makes sense to not
write these messages to stderr.
Proposed by Antoine Jacoutot,
https://bugzilla.gnome.org/show_bug.cgi?id=650882
The grouping in files/headers is not used anymore, and
the function attributes neither. Adapt abicheck scripts
and .def file generation rules accordingly.
There are some bugs caused by the way that gsettings-tool currently
attempts to help the user when they leave the quotes off of a string
value that they are setting.
Simplify the code to make it more robust and add some comments about why
it should be done this way.
https://bugzilla.gnome.org/show_bug.cgi?id=649915
For example, if setting a property on a skeleton from another thread
than where it was constructed, the idle handler responsible for
emitting the PropertiesChanged() signal could run immediately and
clear skeleton->priv->changed_properties_idle_source causing
g_source_unref() to be called with a NULL pointer. This race was
easily be fixed by adding a lock to the skeleton object.
In addition to fixing this race, also move the code for setting up the
idle handler to a class handler for the GObject::notify signal. This
change allows use of g_object_freeze_notify() and g_object_thaw_notify()
to perform atomic property changes from another thread than the one
that the skeleton was created in.
Signed-off-by: David Zeuthen <davidz@redhat.com>
Don't drop resets from a GDelayedSettingsBackend when the writability
changes. Resets will always succeed, even against non-writable keys and
some people (gnome-screensaver) are using them in a way that they would
want them not to be forgotten.
This can easily happen if the owner of the remote object vanishes. Of
course, when that happens, user code is already notified (by e.g. the
notify::g-name-owner signal) so it can avoid using the proxy but
requiring that is a bit harsh. IOW, before this patch this critical
error was printed
GLib-GIO-CRITICAL **: g_dbus_gvariant_to_gvalue: assertion `value != NULL' failed
when that happened. With this patch, we just avoid setting the GValue
so the user will get the default value for its type instead. So, for
example, if the user code is getting a GVariant property on such a
defunct proxy, then he gets a NULL back. So unless said user code
checks the return value, criticals will still be printed if the NULL
GVariant is used for anything interesting.
Signed-off-by: David Zeuthen <davidz@redhat.com>
The code generator sprinkles a few asserts in its output of the form:
g_assert (prop_id - 1 >= 0 && prop_id - 1 < %d);\n
prop_id is unsigned, though, so this generates a compiler warning for
me.
This commit changes the code to merely check for prop_id != 0 instead of
prop_id - 1 >= 0
.. and add a C setter to do this. Also make the C getter return a
reference since the property may be set from another thread. Also
change the constructor to _not_ take a GDBusConnection since this is
something you almost always want to do _after_ creating it. The
API/ABI break is fine as there has never been a GLib release with this
type.
https://bugzilla.gnome.org/show_bug.cgi?id=648959
Signed-off-by: David Zeuthen <davidz@redhat.com>
_GNU_SOURCE must be defined before including any other (system)
header, so defining it in glib-unix.h (and hoping no one has included
anything else before that) is wrong. And the "#define _USE_GNU"
workaround for this problem in gnetworkingprivate.h is even wronger
(and still prone to failure anyway due to single-include guards).
Fix this by defining _GNU_SOURCE in config.h when building against
glibc. In theory this is bad because new releases of glibc may include
symbols that conflict with glib symbols, which could then cause
compile failures. However, most people only see new releases of glibc
when they upgrade their distro, at which point they also generally get
new releases of gcc, which have new warnings/errors to clean up
anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=649201
GDesktopAppInfo violates the GObject rule that your C constructors
should just be thin wrappers around g_object_new(). While GKeyFile
isn't introspctable, this patch allows from JavaScript:
var app = new Gio.DesktopAppInfo({ filename: '/path/to/foo.desktop' });
https://bugzilla.gnome.org/show_bug.cgi?id=648425
When an old pre-thread-default-context API that takes an explicit
GMainContext wants to call a gio API, it must call
g_main_context_push_thread_default() before, and
g_main_context_pop_thread_default() after the gio call, so that the
gio method will return its result to the desired GMainContext.
But this fails for methods like g_socket_client_connect_async() that
make a chain of multiple async calls, since the pushed/popped context
will only affect the initial call.
Fix this by having GSimpleAsyncResult itself push/pop the context
around the callback invocation, so that if the callback queues another
async request, it will stay in the same context as the original one.
https://bugzilla.gnome.org/show_bug.cgi?id=646957
This is nice to have if using gtk-doc on the generated code. We could
also generate -sections.txt and .types files but we don't do that
right now...
Signed-off-by: David Zeuthen <davidz@redhat.com>
Specific changes
- Use get_type(), not get_gtype() for the GType function
- so we need to use the lower-case name type_ for properties called type
- Don't return a function pointer, just make the function returned
available instead
- Add (type) annotations in constructors so g-ir-scanner detects them as such
- Add (transfer none) annotations to property getters
- Add (out) annotations to D-Bus method call functions
Signed-off-by: David Zeuthen <davidz@redhat.com>
It's not that it's actually a bug to do so per se, strictly speaking,
it's just pointless and wasteful.
Signed-off-by: David Zeuthen <davidz@redhat.com>
A fairly typical pattern is to have code that does
foo_set_bar (object, "");
if (some_condition)
{
foo_set_bar (object, "yes");
}
where some_condition is often true every time @object is updated.
With this code, bar is essentially always "yes" but because of how
gdbus-codegen works, useless PropertiesChanged events got scheduled
and sent out. With this patch, we avoid that by always keeping the
original value around and comparing it only when we deem it's time to
send out the ::PropertiesChanged signal (typically in an idle but can
be forced by the user via flush()).
Also add a test case for this.
Signed-off-by: David Zeuthen <davidz@redhat.com>
More precisely, include this line
The license of this code is the same as for the source it was derived from.
Signed-off-by: David Zeuthen <davidz@redhat.com>
Older versions of libdbus would let you construct an invalid
DBusMessage, but that's a bug, which will be fixed in 1.4.8/1.5.0.
Instead, construct a valid message of the same length, then replace
substrings in the serialized blob with their invalid counterparts.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=646326
Signed-off-by: David Zeuthen <davidz@redhat.com>
... this was causing a GDBus test-case to fail so now that it is
fixed, also reenable the test case.
https://bugzilla.gnome.org/show_bug.cgi?id=631379
Signed-off-by: David Zeuthen <davidz@redhat.com>
If g_bus_get_sync() fails in authentication (because e.g. the process
uid, doesn't match the expected in EXTERNAL), a secondary call to
g_bus_get_sync() would notice we aren't initialized, and try
to initialize.
The assertion here is just wrong; we now explicitly and clearly handle
both cases where we already have an error, or we already succeeded.
https://bugzilla.gnome.org/show_bug.cgi?id=635694
And use this for a) documentation purposes; and b) to preserve C ABI
when an interface is extended. See
https://bugzilla.gnome.org/show_bug.cgi?id=647577#c5
for more details. Also add test cases for this.
Signed-off-by: David Zeuthen <davidz@redhat.com>
This is because gtk-doc scans the function in the H file but reads the
docs from the C file. Annoying.
Signed-off-by: David Zeuthen <davidz@redhat.com>
Call g_settings_sync() just before g_applcation_run() returns. This is
really the correct thing to do in every case that you're using GSettings
and it prevents every single application from having to do it for
themselves.
Closes bug #647419.
If GSettings is uninitialised then g_settings_sync() should very
obviously just return right away (rather than attempting to initialise
GSettings first).
Add a flag to essentially short-circuit g_application_register(). The
application makes no attempt to acquire the bus name or check for
existing instances with that name. The application is never considered
as being 'remote' and all requests are handled locally.
Closes#646985.
Several flaws were pointed out by Shaun McCance. We were
leaking handled arguments, and we were mishandling the last
argument, and we were actually skipping arguments too.
https://bugzilla.gnome.org/show_bug.cgi?id=647031
When using GOption to handle commandlines, we need to disable
the builtin help handling, since it calls exit(). Also mention
this particular pitfall in the docs.
For child schemas, verify that the named schema actually exists and
issue a warning if not. This error in schema files will cause runtime
errors when iterating over the list of child schemas and attempting to
instantiate each one.
This will move from being merely a warning to a hard error in the
future.
Bug #646039.
g_tls_certificate_list_new_from_file() was leaking the file contents,
and GSource was leaking the GSourcePrivate structure that got
created when using child sources.
Without getting into a debate about the reasons why you may or may not
want to use unsigned integers, it's sufficient to note that people have
been using them and requesting this functionality.
Bug #641755.
If we have an expected interface and receive a signal not mentioned in
the interface, simply drop it. This way, the application won't have to
check for the signal itself.
This was pointed out in
https://bugzilla.gnome.org/show_bug.cgi?id=642724#c5
Signed-off-by: David Zeuthen <davidz@redhat.com>
If the proxy has an GInterfaceInfo set, validate properties against it
so the application doesn't have to do it.
Signed-off-by: David Zeuthen <davidz@redhat.com>
* gio/gfileattribute.c: (_g_file_attribute_value_get_string,
_g_file_attribute_value_set_string): These use
G_FILE_ATTRIBUTE_TYPE_STRING, which is documented as UTF-8, so
document these private functions as using UTF-8.
* gio/gfileinfo.c: (g_file_info_get_attribute_string,
g_file_info_set_attribute_string, and stringv versions):
Document that the strings are UTF-8 because the implementation uses
those private functions, that use UTF-8.
This helps language bindings (such as glibmm) whose API
distinguishes between known and unknown encodings.
* gio/application.c (g_application_real_command_line): Check that the
default signal handler is not the current one before complaining, because
it is not unusual for overloads to call the base class implementation as
a matter of habit.
g_application_real_open() and g_application_real_activate() already do this
extra check.
