On recent Linux distros /etc/mtab is just a symlink to /proc/mounts
and GFileMonitor does not work there because of how the kernel conveys
that the file changes.
https://bugzilla.gnome.org/show_bug.cgi?id=660511
Signed-off-by: David Zeuthen <davidz@redhat.com>
gdb by default will only print strings up to 200 characters. After that
it abbreviates them. This affects the run-assert-msg-test.sh script if
the path to the glib installation is too long (in our case it was 133
characters, 132 would still have worked...)
By having gdb execute "set print elements 0" before printing the assert
string, the limit on maximum number of characters to print is set to
unlimited.
Signed-off-by: Peter Kjellerstedt <pkj@axis.com>
https://bugzilla.gnome.org/show_bug.cgi?id=670218
foo_free is conceptually "worth" one unref; not decrementing the
refcount here means the GArray or GPtrArray wrapper (but not its
contents) would leak in the following call sequence:
p = g_ptr_array_new ();
g_ptr_array_ref (p);
g_ptr_array_free (p, TRUE);
g_ptr_array_unref (p);
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666113
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Depending how the array is freed, we may want to free the underlying
array (the "segment"), the struct wrapper or both.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666113
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Calling this function with a NULL argument is considered to be invalid,
but one of the regression tests does it anyway (to watch it crash), which
seems a good indication that it's expected to be somewhat common.
Let's check it rather than segfaulting.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666113
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Reviewed-by: Matthias Clasen <mclasen@redhat.com>
These were leaked. Valgrind was sad.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666113
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
My previous fix for GNOME#662100 was incomplete: it seems that with some
timings, the stream can be closed with an async read in-flight. This
can make the read fail immediately with G_IO_ERROR_CLOSED instead of
becoming cancelled.
This happens reliably on an embedded device, and rarely on my laptop;
repeating the test 100 times in quick succession reliably reproduces
the bug on my laptop.
It seems as though what we really want is to ignore read errors, once
we've established that we want to close the connection anyway - this
means that after asking to close, you're immune to exit-on-close,
which seems like a good rule.
An additional subtlety is that continuing to read after we know we
want to close is still required, otherwise we'll never emit ::closed.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=662100
Bug-NB: NB#287088
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Colin Walters <walters@verbum.org>
This was mistakenly omitted from the 2.28 version.
(cherry picked from commit d65b80fb547ef3eed80ae970f858e7d110d90b40)
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=662100
Bug-NB: NB#287088
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Colin Walters <walters@verbum.org>
We didn't previously test anything except the implicit default of TRUE.
Now we test implicit TRUE, explicit TRUE, explicit FALSE, and
disconnecting at the local end (which regressed while fixing Bug #651268).
Also avoid some questionable use of a main context, which fell foul of
Bug #658999 and caused this test to be disabled in master.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=662100
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
This was a regression caused by my previous work on GDBusWorker thread-safety
(Bug #651268). The symptom is that if you disconnect a GDBusConnection
locally, the default implementation of GDBusConnection::closed
terminates your process, even though it shouldn't do that for
locally-closed connections; this is because GDBusWorker didn't think a
cancelled read was a local close.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=662100
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Otherwise, if the caller of _g_dbus_worker_new immediately unrefs the
worker, calling _g_dbus_worker_thread_begin_func in the worker thread
could be a use-after-free.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=651268
Bug-NB: NB#271520
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: David Zeuthen <davidz@redhat.com>
This member is written in _g_dbus_worker_stop from arbitrary threads, and
read by the worker thread, so it should be accessed atomically.
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=651268
Bug-NB: NB#271520
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: David Zeuthen <davidz@redhat.com>
We can't safely close the output part of the I/O stream until any
pending write or flush has been completed. In the worst case, this could
lead to an assertion failure in the worker (when the close wins the
race) or not closing the stream at all (when the write wins the race).
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=651268
Bug-NB: NB#271520
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: David Zeuthen <davidz@redhat.com>
num_writes_pending was a counter, but it only took values 0 or 1, so make
it a boolean: it would never make sense to be trying to write out two
messages at the same time (they'd get interleaved).
Similarly, we can never be writing and flushing at the same time (that'd
mean we were flushing halfway through a message, which would be pointless)
so combine it with flush_pending too, calling the result output_pending.
Also assert that it takes the expected value whenever we change it,
and document the locking discipline used for it, including a subtle
case in write_message_in_idle_cb where it's not obvious at first glance
why we don't need the lock.
(Having the combined boolean at the top of the block of write-related
struct members improves struct packing on 64-bit platforms, by packing
read_num_ancillary_messages and output_pending into one word.)
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=651268
Bug-NB: NB#271520
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: David Zeuthen <davidz@redhat.com>
* Do not ignore the system default
* Do not exclude the last used being set from the default list
This fixes the default applications dialog in control-center.
https://bugzilla.gnome.org/show_bug.cgi?id=658188
Define USE_SYSTEM_PCRE for all configurations which uses the PCRE that was
already built and "installed" beforehand (i.e. the *_ExtPCRE
configurations) so that the compilation will not pick up the GLib-bundled
pcre.h when one wants to use the PCRE "installation" on his/her system.
