GLib currently tries to use FAM volume monitor for monitoring files
within home on NFS. If FAM support is not available, it fallbacks by
default to GInotifyFileMonitor. I think we should fallback to
GPollFileMonitor instead, because inotify is not reliable on NFS,
which may cause issues for dconf. With this patch, it should be safe to
not build libgiofam and still be sure that dconf works properly if home
is mounted on NFS. I think this might be a first step to remove FAM
support from GLib completely, because gamin is buggy and dead for
several years already. Gamin just polls files on NFS anyway. This
change applies on files only, because GPollFileMonitor seems doesn't
support dirs, however it should be enough for dconf. The other
drawback is that one can't set poll timeout currently. Just a note
that this can still be overwritten by GIO_USE_FILE_MONITOR.
Since it’s deprecated in favour of positional arguments, including it in
the help output is confusing.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795304
These generate basic .c and .h files containing the GDBusInterfaceInfo
for a D-Bus introspection XML file, but no other code (no skeletons,
proxies, GObjects, etc.).
This is useful for projects who want to describe their D-Bus interfaces
using introspection XML, but who wish to implement the interfaces
manually (for various reasons, typically because the skeletons generated
by gdbus-codegen are too simplistic and limiting). Previously, these
projects would have had to write the GDBusInterfaceInfo manually, which
is painstaking and error-prone.
The new --interface-info-[body|header] options are very similar to
--[body|header], but mutually exclusive with them.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795304
Recursive annotations do seem to be supported, so we should support them
properly in the type system representation. This currently introduces no
behavioural changes, but will be used in upcoming commits.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795304
We don’t strictly require this, but given that our CI runs it, we
essentially never test with 0.46.0, so it might as well be broken.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
It's been 4 years and 8 development cycles since we introduced
G_ADD_PRIVATE and offset-based private data access. It is now
time to finally deprecate the old mechanism.
Closes: #699
This is to avoid race between dispose() being called on the
GFdoNotificationBackend instance, and any pending operations which are
still waiting on a D-Bus reply when it’s disposed.
(thx to Philip Withnall for pointing that out)
Signed-off-by: Arnaud Rebillout <elboulangero@gmail.com>
Previously, calling:
g_dbus_is_supported_address ("some-imaginary-transport:", NULL)
correctly returned FALSE; but calling:
g_dbus_is_supported_address ("some-imaginary-transport:", &error)
crashed with:
GLib-GIO:ERROR:../gio/gdbusaddress.c:434:g_dbus_is_supported_address:
assertion failed: (ret || (!ret && (error == NULL || *error != NULL)))
This was because, if the address component did not start with a known
transport, no error was set. Fix this, reusing an error string used by
the corresponding else branch in g_dbus_address_connect(), and adjust
the test to pass both NULL and non-NULL GError **s to this function in
every test case. This case:
g_assert (!g_dbus_is_supported_address ("some-imaginary-transport:foo=bar;unix:path=/this/is/valid", NULL));
would have caught this bug with a non-NULL GError **.
The way things were before: a FreedesktopNotification struct is
allocated before the dbus call, and this same struct is possibly re-used
for other dbus calls. If the server becomes unavailable, the callback
will be invoked after the call times out, which leaves a long time where
other dbus calls can happen, re-using the same FreedesktopNotification
as user data. When the first call times out, the callback is invoked,
and the user data is freed. Subsequent calls that used the same user
data will time out later on, and try to free a pointer that was already
freed, hence segfaults.
This bug can be reproduced in Cinnamon 3.6.7, as mentioned in:
<https://github.com/linuxmint/Cinnamon/issues/7491>
This commit fixes that by always allocating a new
FreedesktopNotification before invoking dbus_call(), ensuring that the
callback always have a valid user data.
Signed-off-by: Arnaud Rebillout <elboulangero@gmail.com>
A slightly modified patch originally written by Morten Welinder
<terra@gnome.org> to make the error codes returned by g_spawn_*()
functions more specific when on Windows. They are already this specific
on Linux.
Add a unit test for the ENOENT case.
https://gitlab.gnome.org/GNOME/glib/issues/303
Signed-off-by: Philip Withnall <withnall@endlessm.com>
The error number was saved after some g_debug() and g_free() calls, in
various places, which meant it could have been overwritten since the
error we care about happened.
https://gitlab.gnome.org/GNOME/glib/issues/303
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Use a GOnce to make sure we only warn about notifications not being
supported on Windows once, rather than on each attempted notification.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: https://gitlab.gnome.org/GNOME/glib/issues/1234
This allows test calls to produce output with \n
line separators on Windows, instead of \r\n.
Reduces the number of ifdefs, since all checks
can be done against one template on all platforms.
Test that the API behaves as expected, especially when we get to
saturation.
Additionally, check that both the function and the macro versions of the
API behave identically.
If we're using GCC we can use __extension__ to inline the grefcount and
gatomicrefcount API, and avoid the function call.
These macros are only enabled if G_DISABLE_CHECKS is defined, as they
remove critical warnings when the reference counters achieve saturation.
We have a common pattern for reference counting in GLib, but we always
implement it with ad hoc code. This is a good chance at trying to
standardise the implementation and make it public, so that other code
using GLib can take advantage of shared behaviour and semantics.
Instead of simply taking an integer variable, we should create type
aliases, to immediately distinguish the reference counting semantics of
the code; we can handle mixing atomic reference counting with a
non-atomic type (and vice versa) by using differently signed values for
the atomic and non-atomic cases.
The gatomicrefcount type is modelled on the Linux kernel refcount_t
type; the grefcount type is added to let single-threaded code bases to
avoid paying the price of atomic memory barriers on reference counting
operations.
On an Android build, API 22, at least, I got a:
> warning: "UNIX_PATH_MAX" redefined
We were currently defining it as:
> #define UNIX_PATH_MAX sizeof (((struct sockaddr_un *) 0)->sun_path)
Whereas Android's headers define this variable of sockaddr_un as:
> char sun_path[UNIX_PATH_MAX];
So by definition, we will still get the right result in the end by just
using the original value of UNIX_PATH_MAX.
