Detect the following two errors:
- attempting to unlock a mutex that is not locked
- attempting to clear a mutex that was not initialised or was
initialised but is still locked
Both of these are fatal errors. We avoid using g_error() here because
doing so would involve calls back into the GMutex code, and if things
are going off the rails then we want to avoid that.
https://bugzilla.gnome.org/show_bug.cgi?id=731986
If we have futex(2) then we can implement GMutex natively and gain a
substantial performance increase (vs. using pthreads).
This also avoids the need to allocate an extra structure in memory when
using GMutex or GCond: we can use the structure directly.
The main reason for the increase in performance is that our
implementation can be made more simple: we don't need to support the
array of options on pthread_mutex_t (which includes the possibility, for
example, of being recursive).
The result is a ~30% improvement in uncontended cases and a much larger
increase (3 to 4 times) in contended cases for a simple testcase.
https://bugzilla.gnome.org/show_bug.cgi?id=731986
When GLib had been told to expect message X, but then actually saw
message Y, it would log the "did not see expected message" error with
message Y's log level and domain, which makes no sense. Change it to
log with domain "GLib" and G_LOG_LEVEL_CRITICAL instead.
Also, include the expected domain in the error message, so that if
that's the reason why the expectation didn't match, you can tell that
from the error message.
Update glib/tests/testing.c for these changes; for all other test
programs in GLib and elsewhere, this change should not break any
existing tests, it should only improve the output on failure.
https://bugzilla.gnome.org/show_bug.cgi?id=727974
We don't use this for anything inside of GApplication yet, but Gtk is
about to start using it to find various bits of the application (such as
its menus, icons, etc.).
By default, we form the base path from the application ID to end up with
the familiar /org/example/app style.
https://bugzilla.gnome.org/show_bug.cgi?id=722092
This is not a functional change, as the hints field is static and hence
automatically initialised to zero — which happens to be what AF_UNSPEC
and the unspecified protocol are defined as. However, it’s best to be
explicit about this, in case AF_UNSPEC is _not_ defined as zero.
https://bugzilla.gnome.org/show_bug.cgi?id=732739
I recently needed to nul-terminate the returned buffer, and I wasn't
sure if g_input_stream_read() does that or not. I've checked
glocalfileinputstream.c, which calls read(2) which doesn't nul-terminate
the buffer. So I assume it's the same behavior for all GInputStream
subclasses.
https://bugzilla.gnome.org/show_bug.cgi?id=732704
When using this API, I wasn't sure what the cancellable does. I think
it's generally desirable to kill the subprocess if the wait operation is
cancelled, since in this case the application is no longer interested by
the subprocess.
https://bugzilla.gnome.org/show_bug.cgi?id=732704
Be a bit more careful when copying and updating the property sheets, so that
we don't accidently change fields with '10' in them that are actually not
indicating the Visual Studio version.
...so that builds of GLib on x64 Visual C++ can be restored, as the build
fails in line 449 of valgrind.h as it only supports MinGW/GCC for x64
Windows and simply will not build otherwise. Make the x64 Visual C++
builds compile again by defining NVALGRIND when GLib is being built for
Windows on x64 Visual C++.
https://bugzilla.gnome.org/show_bug.cgi?id=732465
A critical message is printed when a parameter of g_file_equal() is not
a GFile. When we read the documentation before this commit, we can think
that passing NULL or another type than GFile is allowed, but it is not
the case.
Another option is to allow NULL parameters. But for consistency with
e.g. g_str_equal(), it's probably better to keep the code as is.
https://bugzilla.gnome.org/show_bug.cgi?id=732357
- g_subprocess_launcher_spawn() and spawnv(): there is no other way
AFAIK to create a GSubprocess from a launcher. So these
functions are not "convenience helper".
- annotate optional arguments for g_shell_parse_argv().
- other trivial fix
https://bugzilla.gnome.org/show_bug.cgi?id=732357
Document that giving %NULL for the activate handler is supported since
GLib 2.40. We documented this on GSimpleAction itself (where the
default handler functionality is implemented) but expecting the user to
dig that up is asking a bit much.
Also, add some more explicit documentation about the conditions under
which each field is expected to be filled in.
https://bugzilla.gnome.org/show_bug.cgi?id=732429
Our internal call to g_io_channel_read_line_backend() may return
G_IO_STATUS_ERROR, in which case two things will be true:
- the GError will have been set (if appropriate)
- the &got_length return value may not have been set
Since it's our convention to leave 'out' parameters untouched in
exception cases, this is perfectly fine. Unfortunately,
g_io_channel_read_line(), in wrapping this internal function, always
promotes the length parameter, even in the case of error.
Stop doing that in order to avoid overwriting the callers's variable
with junk in the error case.
https://bugzilla.gnome.org/show_bug.cgi?id=731339
Move width table generation into the gen-unicode-tables.pl script. This makes
updating the tables automatic without the previously required manual editing
required to insert the tables in the right place of the source code.
Don't emit property deprecation warnings for construct properties that
are being set to their default value during construction, but _do_ emit
them in all cases when the property was explicitly given to
g_object_new().
https://bugzilla.gnome.org/show_bug.cgi?id=732184
By default G_PARAM_DEPRECATED means absolutely nothing. We only emit a
warning if G_ENABLE_DIAGNOSTIC is set to '1' and then, only on sets.
Turn the logic on its head: emit the warning by default, unless
G_ENABLE_DIAGNOSTIC is set to 0. In order to avoid a torrent of output, only
emit a warning once per property name.
https://bugzilla.gnome.org/show_bug.cgi?id=732184
Used for the commonly used case (in signal emission) where we
initialize and set a GValue for an instance
Includes a fast-path for GObject
Overall makes it 6 times faster than the previous combination
of g_value_init + g_value_set_instance
Makes signal emission around 10% faster
https://bugzilla.gnome.org/show_bug.cgi?id=731950
memcmp() is declared by glibc as follows:
/* Compare N bytes of S1 and S2. */
extern int memcmp (const void *__s1, const void *__s2, size_t __n)
__THROW __attribute_pure__ __nonnull ((1, 2));
despite the fact that it is valid to call it with a null pointer if the
size is zero.
gcc 4.9.0 contains a new optimisation that sees that we pass a pointer
to this function and concludes that it certainly must not be null,
removing a later check and thereby causing a crash.
We protect the invocation of memcmp() with a condition to prevent gcc
from making this false assumption (arguably under wrong advice from
glibc).
