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>
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
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.
C_IN macro was added years ago in bcbaf1bef0, using same value as the
internal code of Android with the reasonning that "some parts of the API
used by the resolver objects is not public in the Android NDK (yet)".
Well since then things are changed, since it is definitely available (at
least on the API 22 of Android which I am using) in the public header
arpa/nameser_compat.h.
Let's just add a #ifndef to handle both cases when you build with an
older or recent API.
Meson has the ability to classify tests according to "suites", a list of
tags. This is especially useful when we want to run specific sets of
tests — e.g. only GLib's tests — instead of the whole test suite. It
also allows us to classify special tests, like "slow" ones, so that we
can only run them when needed.
FIONREAD ioctl on Linux reports the size of payload on UDP sockets.
However, other systems usually add internal header size to the reported
size, which vary between different operating systems and socket types.
To make it work on more systems, we should follow what we do on Windows
instead of using this unreliable FIONREAD ioctl.
This fixes socket test on FreeBSD.
libelf, just like libc, is not a single project. It is an interface
which can be implemented independently by different operating systems.
Therefore, we cannot expect all systems to provide a .pc file, and we
should fallback to cc.find_library and cc.has_function like what we
already do in autotools build.
Non-glibc gettext implementation seems to decide the language from
LC_MESSAGES environment variable instead of LC_MESSAGES locale, so
we should set both environment variable and locale when running tests
which need translation from specific languages.
G_IO_ERROR_NOT_SUPPORTED is used as parameter for g_set_io_error(),
however, errno is expected instead and thus error code is set to 0,
which is wrong. Let's use ENOTSUP instead.
To be honest, I am not sure why, but in some special environments (e.g.
our CI integration) can happen, that file device number is different from
parent device number. Return "Unable to find or create trash directory for
%s" error from g_local_file_trash() in that case and also set
G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH appropriately.
Make the --help output more consistent with the man page, making it more
obvious that --sourcedir only applies to the files referenced in FILE,
not to the location of FILE itself.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://gitlab.gnome.org/GNOME/glib/issues/1406
Change G_FILE_ATTRIBUTE_ACCESS_CAN_TRASH logic to be consistent
with recent g_local_file_trash changes, i.e. set this to FALSE for
locations on system-internal mounts.
https://gitlab.gnome.org/GNOME/glib/issues/251
New bugs appears periodically in nautilus/gvfs/glib components that not
all trashed files are shown in trash:///. It used to be problem mostly
for "bind mounts" and btrfs subvolumes only. Currently, it is also
problem for nfs, cifs and other filesystems, which have been recently
added by commmit 0d69462f on the list of system internal filesystems.
This happens because the trash backend doesn't monitor files on system
internal mounts. Such behavior is not against the trash-spec, however,
we should be consistent within GNOME.
This behavior has the nice side-effect that it solves issues with hangs
on network filesystems: https://gitlab.gnome.org/GNOME/glib/issues/605,
because those are currently on the system internal filesystem list.
https://gitlab.gnome.org/GNOME/glib/issues/251
Autoconf macro AC_HEADER_MAJOR doesn't define a macro in config.h when
major is defined in sys/types.h. This was not a problem because major
is assumed to be always available. However, commit aefffa3fbc
changes this assumption in order to fix build on systems without major,
which causes code using major to be disabled on systems putting major
in sys/types.h.
This commit defines a new macro MAJOR_IN_TYPES for both autotools and
meson builds to make major useful on these systems again.
gio-querymodules-wrapper.py is copied from glib-networking. This python
wrapper script is needed because meson.build cannot check for DESTDIR
env variable itself, unlike Makefile.am. It is used to update
giomodule.cache file when installing GIO modules like fam.
The previously implementation considered a file to be a mountpoint if
its parent is on a different device. / is its own parent, so by this
definition it is not a mountpoint.
But / is (generally) listed in fstab, and fstab(5) defines the
directories it contains to be mountpoints. This attribute should follow
that definition (and reasonable expectation): the root directory is a
mountpoint.
So, add a special-case for the case where the file's parent has the same
st_dev and st_ino as the file, which is true only at the root.
Test this attribute at / (only on POSIX), /proc (but only on Linux), and
at many files and directories created by the test suite (which cannot be
mountpoints).
Sometimes file monitor events may be slow to emit. Using g_idle_add
makes it less possible for events to be scheduled later than the main
loop quit, preventing test failure caused by missing events.
This fixes test failure on FreeBSD.
The check in _ke_is_excluded, which causes GKqueueFileMonitor to
fallback to GPollFileMonitor when it returns TRUE, was made to prevent
file monitor from blocking unmount of removable drives on systems not
supporting O_EVTONLY flag in open. However, since g_mount_can_unmount
always returns TRUE on Unix-like platforms, the check always returns
TRUE on non-standard mount points, which is very likely to cause all
programs on the desktop to use the polling fallback if GNOME is
installed in a different prefix for development. This makes the desktop
sluggish and results in bad developer experience on *BSD.
Kqueue isn't good at detecting rapid file creation and deletion. It
tends to miss events because events returned by the kernel don't include
filename information. Since the size of struct kevent is fixed, it is
probably not possible to extend the API to include file names without
breaking ABI. Therefore, we disables the test here to avoid test failure
that is impossible to fix in a reliable way.
The test 'file' uses non-standard '--bytes' option when running du,
which may cause error on non-GNU systems. To keep the test working,
we skips the du check as if we don't find a du command when du fails.
-export-dynamic is a libtool flag. It is also supported by GCC as an
undocumented flag, but it is not supported by Clang. Since we don't use
libtool in meson, we should use -Wl,--export-dynamic instead.
In master, it is already possible to build GLib using Visual Studio
using Meson[1] for some time, so we should focus on maintaining only the
Meson build files for building GLib with Visual Studio.
[1]: There are caveats when building with Visual Studio 2008, namely
that one needs to use the mt command to embed the manifests that
are generated with the .exe/DLLs, for all builds, and that in the
case where the compilation hangs on Visual Studio 2008 x64, as a
workaround, should stop the build by terminating all cl.exe tasks
and change the compiler optimization flag from /O2 (full speed) to
/O1 (optimize for size), due to compiler optimization issues.
