In the event that a GSettings object is being destroyed just as a change
signal is being delivered, the destroying thread will race with the
dconf worker thread for acquiring the lock on the GSettingsBackend.
If the signalling thread gets there first then the destroying thread
will block on the lock. The signalling thread adds a reference to the
GSettings object that is being destroyed and releases the lock. The
idea is that this should prevent the GSettings object from being
destroyed and thus maintain its entry in the list. Unfortunately, the
weak reference notify function is already running and as soon as we
release the lock, the list entry is removed.
The signalling thread crashes.
This bug is indicative of a serious problem encountered in many
situations where GObject instances are touched from multiple threads.
Ideally, we will move to a place where g_object_ref() is not called at
all on the GSettings object from the dconf worker thread and instead, a
dispatch will be done without holding a reference (similar to how
GAppInfoMonitor presently works). This would also prevent the
unfortunate case of someone dropping what they assume to be the last
reference on a GSettings object, only to have an already-pending signal
delivered once they return to the mainloop, crashing their program.
Making this change for GSettings (with multiple instances per thread,
the possibility of multiple backends and each instance being interested
in different events) is going to be extremely non-trivial, so it's not a
change that makes sense at this point in the cycle.
For now, we can do a relatively small and isolated tweak so that we
never access the list except under a lock. We still perform the bad
pattern of acquiring a ref in a foreign thread which means that we still
risk delivering a signal to a GSettings object that the user has assumed
is dead (unless they explicitly disconnect their signal handler). This
is a problem that we already had, however.
https://bugzilla.gnome.org/show_bug.cgi?id=710367
Change the order of the arguments on the (internal) keys_changed callback in
GSettingsListenerVTable.
This means that all functions in the table now fit the following signature:
void (* f) (GObject *target,
GSettingsBackend *backend,
const gchar *name_or_path,
gpointer origin_tag,
const gchar * const *names);
allowing the possibility of arguments ignored at the end.
This allows us to simplify our dispatch-to-thread code in GSettingsBackend,
making it a bit less generic.
So far, this should be a straight refactor.
https://bugzilla.gnome.org/show_bug.cgi?id=710367
The _finish functions for GUnixVolume _mount and _eject functions were
never implemented, having been simply stubbed out as 'return TRUE;'.
Implement them.
https://bugzilla.gnome.org/show_bug.cgi?id=724916
The existing code is buggy and now that we have GSubprocess, we should just use
it instead, allowing for some substantial reduction in complexity.
https://bugzilla.gnome.org/show_bug.cgi?id=724916
As of e6af432, g_content_type_get_symbolic_icon() returns non-symbolic
fallbacks. Thus, we can't append another symbolic icon to the fallbacks.
The special case was a bit of a hack anyway. It was only applied to
themed icons and there was no generic fallback for mime types that are
not folders.
https://bugzilla.gnome.org/show_bug.cgi?id=726046
We need to have these in BUILT_SOURCES so that 'make' knows to generate them
before attempting to compile other .c files in the same directory (since some
of these files include the header).
Should fix up remaining issues about partial versions of this file being
included under parallel builds.
https://bugzilla.gnome.org/show_bug.cgi?id=725891
Add a test for GSubprocess to test setting, unsetting and inheritance of
environment variables. Use communicate() to give it a bit more of a
workout as well.
https://bugzilla.gnome.org/show_bug.cgi?id=725651
On the splice for stdout or stderr completing, GSubprocess calls
_slice_finish() to collect the result.
We assume that a zero return value here means failure, but in fact this
function returns a gssize -- the number of bytes transferred, or -1 for
an error.
This causes GSubprocess to mistakenly think that it has an error when it
actually just has an empty buffer (as would be the case when collecting
stderr from a successful command).
Check for -1 instead of FALSE to detect the error.
https://bugzilla.gnome.org/show_bug.cgi?id=724916
Add the basename from the first component of the Exec line to the list of
strings to search for via g_desktop_app_info_search().
We treat Exec as a fairly strong match -- just below the visible name.
Add a testcase to make sure everything is working OK.
https://bugzilla.gnome.org/show_bug.cgi?id=725023
Visual C++ is quite zealous about checking against the types used in the
initializing of array of structures, even up to Visual C++ 2013. Fix this
by splitting up the initializing steps.
https://bugzilla.gnome.org/show_bug.cgi?id=724609
There is no longer any code left in the check/prepare functions on UNIX,
so put %NULL in the GSourceFuncs vtable.
This also allows us to simplify some logic.
https://bugzilla.gnome.org/show_bug.cgi?id=724707
We are reusing the GPollFD.revents field of the source to store a
temporary value. Use a local variable for that instead.
This is a refactor to make the next commit easier to understand.
https://bugzilla.gnome.org/show_bug.cgi?id=724707
Now that GCancellable's GSource is based on _set_ready_time() instead of
an fd, we should use it as a child source, instead of forcing the
creation of the fd and adding it as a poll.
https://bugzilla.gnome.org/show_bug.cgi?id=724707
Windows does not come with inet_aton(), and this check on IPv4 addresses
is actually not needed on Windows as the getaddrinfo() implementation on
Windows already rejects non-standard and non-real IPv4 numbers-and-dots
addresses.
https://bugzilla.gnome.org/show_bug.cgi?id=724609
After getting an EINTR, g_socket_condition_timed_wait() has to adjust
its timeout, but it was trying to convert from nanoseconds to
microseconds by multiplying by 1000 rather than dividing... Oops.
https://bugzilla.gnome.org/show_bug.cgi?id=724239
There is a race condition in the makefile that can result in build failures like this in parallel builds:
| ./gdbus-test-codegen-generated.h:7:0: error: unterminated #ifndef
| #ifndef __GDBUS_TEST_CODEGEN_GENERATED_H__
This is because a rule like this:
x.c x.h: prerequisites
@commands
doesn't consider x.c and x.h together. Instead, it expands to two rules, one to
generate x.c and one to generate x.h, which happen to run the same commands. In
the worst case they execute in parallel, overwriting each other's output.
Signed-off-by: Ross Burton <ross.burton@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=723616
If a GSimpleAsyncResult has a NULL source tag, allow it to compare
valid to a non-NULL source tag in g_simple_async_result_is_valid(), to
simplify cases where, eg, g_simple_async_result_new() and
g_simple_async_result_report_error_in_idle() are both used.
https://bugzilla.gnome.org/show_bug.cgi?id=721458
We have a configure.ac check for lib.exe that attempts to enable
creation of .lib files for our 5 public libraries. That has been broken
for a long time for two reasons:
1) the Makefiles hardcode 'lib' instead of 'lib.exe'
2) we dropped generation of .def files quite some time ago (except for
in gthread where we have the two-symbol file under version control)
Add new rules for creating .def files from dumpbin.exe (which you should
have if you have lib.exe) and fix the .lib rules to use lib.exe.
Add a bit of $(AM_V_GEN) all around, as well.
https://bugzilla.gnome.org/show_bug.cgi?id=722033
In addition to the standard "192.168.1.1" format, there are numerous
legacy IPv4 address formats (such as "192.168.257",
"0xc0.0xa8.0x01.0x01", "0300.0250.0001.0001", "3232235777", and
"0xc0a80101"). However, none of these forms are ever used any more
except in phishing attempts. GLib wasn't supposed to be accepting
these addresses (neither g_hostname_is_ip_address() nor
g_inet_address_new_from_string() recognizes them), but getaddrinfo()
accepts them, and so the parts of gio that use getaddrinfo()
accidentally did accept those formats.
Fix GNetworkAddress and GResolver to reject these address formats.
https://bugzilla.gnome.org/show_bug.cgi?id=679957
Windows needs a special inefficient hack to implement
g_socket_get_available() correctly for UDP sockets, but that hack
isn't needed for TCP, and in fact, might give the wrong answer in that
case. Fix it to only use the hack with UDP.
Also, fix that case to handle non-blocking sockets as well.
And add a test case for g_socket_get_available() with TCP.
https://bugzilla.gnome.org/show_bug.cgi?id=723422
Since we are no longer using sgml mode, using /* */ to
escape block comments inside examples does not work anymore.
Switch to using line comments with //
Our check for inotify_init1() being defined is broken. We happily
declare that inotify is supported, even if the check fails.
This was originally intended to check for inotify_init1 in the libc so
that we could fall back to inotify_init if it was not yet defined.
FreeBSD has a libinotify that emulates the inotify API via kqueue. It
installs a <sys/inotify.h> header and requires linking to -linotify. We
don't want to falsely detect working inotify in this case.
Treat the lack of inotify_init1() in the libc as a lack of inotify
support. This requires only a new libc -- we still support old kernels:
in the case that inotify1_init() fails, we fall back to inotify_init().
https://bugzilla.gnome.org/show_bug.cgi?id=724330
It’s not enough to close a connection by calling g_input_stream_close()
and g_output_stream_close() on its two substreams: to close the
underlying socket, one must use g_io_stream_close(). Document that.
https://bugzilla.gnome.org/show_bug.cgi?id=724278
Since all element markup is now gone from the doc comments,
we can turn off the gtk-doc sgml mode, which means that from
now on, docbook markup is no longer allowed in doc comments.
To make this possible, we have to replace all remaining
entities in doc comments by their replacement text, & -> &
and so on.
