There's a race condition somewhere in GTestDBus that can result in
the next test being started at a time when g_bus_get() would still
return the connection that is in the process of closing. This can
be reproduced reasonably reliably by running the gapplication test
10K times in a loop.
Instead of relying on waiting for the weak reference to be released,
we can force the issue by clearing it.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=768996
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=894677
It incorrectly said that an error could only be returned if the GVariant
was incorrect for the D-Bus API, but that’s not true: an error will also
be returned if you call it on a closed GDBusConnection.
Clarify that, and mention the actual error codes which are returned.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Reviewed-by: nobody
The g_dbus_connection_call() documentation doesn’t make it clear that
the reply type is always a tuple.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Reviewed-by: nobody
Where we were already treating GHashTables as sets, modify them to use
the set-specific APIs g_hash_table_add() and g_hash_table_contains(), to
make that usage more obvious and less prone to being broken.
Heavily based on patches by Garrett Regier <garrettregier@gmail.com>.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=749371
g_dbus_connection_call_internal() accesses the user data it passes to
g_dbus_connection_send_message_with_reply() after the call. That data
might be freed already in the case that the callback is called
immediately.
Fix this by removing the 'serial' field from the user data altogether
and fetch the serial from the message in the callback.
https://bugzilla.gnome.org/show_bug.cgi?id=748263
Some annotations I made while trying to debug bug #781847. They
introduce no behavioural changes.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Actually, Unicode changes to this file got reverted in
2d56c49b10. Also, there is
"No such interface '%s'" string already, so we avoid
breaking the string freeze.
This highlighted a bug in GDBusConnection, where an interface name was
not included in a message referring to it.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=780032
If we have an input parameter (or return value) we need to use (nullable).
However, if it is an (inout) or (out) parameter, (optional) is sufficient.
It looks like (nullable) could be used for everything according to the
Annotation documentation, but (optional) is more specific.
This commit broke some tests, and I don't have the time
to fix up all the expected output, so I'll revert the changes
to the affected files for now.
This needs to be redone with the necessary test fixes.
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
