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>
