If you called g_dbus_connection_remove_filter() on a filter while it
was running (or about to be run) in another thread, its GDestroyNotify
would be run immediately, potentially causing the filter thread to
crash.
Fix this by refcounting the filters, and using the existing mechanism
for running a GDestroyNotify in another thread in the case where the
the gdbus thread is the one that frees it.
Also, add a bit of documentation explaining this (and add a related
clarification to g_dbus_connection_signal_subscribe()).
https://bugzilla.gnome.org/show_bug.cgi?id=704568
This is a binding-friendly version of g_dbus_connection_register_object.
Based on a patch by Martin Pitt and the code of g_bus_watch_name_with_closures.
https://bugzilla.gnome.org/show_bug.cgi?id=656325
exit-on-close for a DBus connection is a completely normal thing. On
a regular GNOME login, gdm retains the X server, but terminates the
session login bus and associated helpers like gnome-settings-dameon,
the a11y tools, etc.
I've seen several downstream reports of confusion as to what these
apparent error messages mean in the system log. It doesn't help
that they're so obtuse.
We're also printing them to stderr, when this is not an error.
The reason this was introduced is presumably some people were confused
as to why their process exited when the system bus did. But the
solution for that I believe is documentation, not printing stuff to
everyone's system log in normal operation.
https://bugzilla.gnome.org/show_bug.cgi?id=742386
DBus has recently introduced new message flag
DBUS_HEADER_FLAG_ALLOW_INTERACTIVE_AUTHORIZATION, which tells that
caller is willing to wait for unspecified amount of time for the call
to return, as the service may perform interactive authorization (e.g.
using polkit).
https://bugzilla.gnome.org/show_bug.cgi?id=739616
In path_rule_matches(), the given paths may be of 0-length. Do not
access memory before the array in those case. This is for example
triggered by:
test_match_rule (con, G_DBUS_SIGNAL_FLAGS_MATCH_ARG0_PATH, "/", "", FALSE);
in test_connection_signal_match_rules().
This bug was found thanks to GCC AddressSanitizer.
https://bugzilla.gnome.org/show_bug.cgi?id=745745
The gdbus GTask port introduced a deadlock because some code had been
using g_simple_async_result_complete_in_idle() to ensure that the
callback didn't run until after a mutex was unlocked, but in the gtask
version, the callback was being run immediately. Fix it to drop the
mutex before calling g_task_return*(). Also, tweak
tests/gdbus-connection to test this.
https://bugzilla.gnome.org/show_bug.cgi?id=747349
When losing the D-Bus connection, we would write to stdout about it just
before killing ourselves with SIGTERM. We're a library, so we should
probably use stderr instead.
https://bugzilla.gnome.org/show_bug.cgi?id=721324
In Windows development environments that have it, <unistd.h> is mostly
just a wrapper around several other native headers (in particular,
<io.h>, which contains read(), close(), etc, and <process.h>, which
contains getpid()). But given that some Windows dev environments don't
have <unistd.h>, everything that uses those functions on Windows
already needed to include the correct Windows header as well, and so
there is never any point to including <unistd.h> on Windows.
Also, remove some <unistd.h> includes (and a few others) that were
unnecessary even on unix.
https://bugzilla.gnome.org/show_bug.cgi?id=710519
It's possible to get a org.freedesktop.Properties.GetAll call even if we
have no readable properties in the introspection, in which case we
should return the empty list in the usual way.
We should certainly _not_ be dispatching to the method call handler of
an interface which has no properties (since it will not be expecting
this).
Add a check to make sure that there is at least one readable property
before assuming that a NULL get_property handler implies that we want to
handle properties asynchronously.
Add a testcase that was failing before the change and works after it.
https://bugzilla.gnome.org/show_bug.cgi?id=703437
The existing advice in the documentation to "simply" register the
"org.freedesktop.DBus.Properties" interface if you want to handle
properties asynchronously is pretty unreasonable. If you want to handle
this interface you have to deal with all properties for all interfaces
on the path, and you have to do all of the checking for yourself. You
also have to provide your own introspection data.
Introduce a new convention for dealing with properties asynchronously.
If the user provides NULL for their get_property() or set_property()
functions in the vtable and has properties registered then the
properties are sent to the method_call() handler. We get lucky here
that this function takes an "interface_name" parameter that we can set
to "org.freedesktop.DBus.Properties".
We also do the user the favour of setting the GDBusPropertyInfo on the
GDBusMethodInvocation for their convenience (for much the same reasons
as they might want the already-available GDBusMethodInfo).
Add a testcase as well as a bunch of documentation about this new
feature.
https://bugzilla.gnome.org/show_bug.cgi?id=698375
Separate the code for validating a method call from the code for
actually scheduling it for dispatch.
This will allow property Get/Set/GetAll calls to be dispatched to the
method_call handler without duplicating a lot of code.
https://bugzilla.gnome.org/show_bug.cgi?id=698375
We presently do a lot of checks on property sets (signature check,
correct interface, property exists, etc.) from the worker thread before
dispatching the call to the user's thread. The typecheck, however, is
saved until just before calling the user's vfunc, in their thread.
My best guess is that this was done to save having to unpack the value
from the tuple twice (since we don't unpack it until we're just about
the call the user).
This patch moves the check to the same place as all of the other checks.
The purpose of this change is to allow for sharing this check with the
(soon-to-be-introduced) case of handing property sets from
method_call().
This change has a minor side effect: error messages generated by sending
invalid values to property sets are no longer guaranteed to be correctly
ordered with respect to the void returns from successful property sets.
They will instead be correctly ordered with respect to the other error
messages.
https://bugzilla.gnome.org/show_bug.cgi?id=698375
Back in the far-off twentieth century, it was normal on unix
workstations for U+0060 GRAVE ACCENT to be drawn as "‛" and for U+0027
APOSTROPHE to be drawn as "’". This led to the convention of using
them as poor-man's ‛smart quotes’ in ASCII-only text.
However, "'" is now universally drawn as a vertical line, and "`" at a
45-degree angle, making them an `odd couple' when used together.
Unfortunately, there are lots of very old strings in glib, and also
lots of new strings in which people have kept up the old tradition,
perhaps entirely unaware that it used to not look stupid.
Fix this by just using 'dumb quotes' everywhere.
https://bugzilla.gnome.org/show_bug.cgi?id=700746
g_dbus_connection_call_with_unix_fd_list_sync () and
g_dbus_connection_call_sync () should allow None for the
bus_name parameter.
https://bugzilla.gnome.org/show_bug.cgi?id=683771
Signed-off-by: Richard Hughes <richard@hughsie.com>
Now that we're using g_simple_async_result_set_check_cancellable() we
no longer need this terrible hack of carrying the GCancellable on the
GSimpleAsyncResult using qdata. See bug 672013 for more details.
https://bugzilla.gnome.org/show_bug.cgi?id=672013
Signed-off-by: David Zeuthen <davidz@redhat.com>
Call g_simple_async_result_set_check_cancellable() after all
GSimpleAsyncResult creation in order to take advantage of the new
reliable cancellation feature.
The guarantee of reliable cancellation fixes a bug in dbusmenu (which
was already assuming that cancellation was reliable). See this bug:
https://bugs.launchpad.net/ubuntu/+source/libdbusmenu/+bug/953562https://bugzilla.gnome.org/show_bug.cgi?id=672013
Signed-off-by: David Zeuthen <davidz@redhat.com>
g_bus_get_finish() and g_bus_get_sync() both document that the returned
object will usually have exit-on-close set to TRUE, but the property's
documentation specified that its default is FALSE. While that's
technically true from a GObject perspective, it's not accurate from the
API user's perspective.
https://bugzilla.gnome.org/show_bug.cgi?id=668163
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: David Zeuthen <zeuthen@gmail.com>
Previously, this would fail the assertion
"connection->initialization_error != NULL" after the label "out".
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=665067
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: David Zeuthen <davidz@redhat.com>
This happens to work at the moment (because GDBusWorker.frozen is a
gboolean and not just a 1-bit bitfield), but isn't right: the gboolean
ends up with values 0 or G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING
(which is more than 1).
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=664558
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: David Zeuthen <davidz@redhat.com>
