enums are stored in v_long but need to be marshalled as signed
integers. On platforms where int is 32 bits, taking the
address of v_long resulted in the wrong 32 bits being marshalled.
So we need to stuff the enum's int-sized value to a temporary
int-sized variable and marshall that instead.
Second, on return, libffi actually returns a pointer to a value
that's sized according to platform conventions, not according to
what the caller requested. ie if ffi_type_sint was requested, the
value can still be a 64-bit sign-extended long on a 64-bit
architecture like PPC64, thus the caller cannot simply cast
the return value as a pointer to the desired type, but must cast
as a pointer to an integral type and then cast to the desired
type to remove any sign extension complications.
For more information on how to correctly handle libffi return
values, see the following bug, specifically comment 35:
https://bugzilla.redhat.com/show_bug.cgi?id=736489
"For 64-bit ABIs that extend integral returns types to 64-bits, libffi always
returns full 64-bit values that you can truncate in the calling code. It's
just the way it is has always been. Please don't change libffi. I'll document
this clearly for the next version (perhaps there is a mention of this, I
haven't looked yet).
The same is true for returning 8-bit values, for instance, on 32-bit systems.
All ABIs extend those results to the full 32-bits so you need to provide a
properly aligned buffer that's big enough to hold the result."
https://bugzilla.gnome.org/show_bug.cgi?id=659881
0e3f530185 introduced a compiler warning
about implicit declaration of g_get_prgname(). Fix that.
Problem caught and fix suggested by Rico Tzschichholz.
Since it is valid for a D-Bus interface / service to add new methods,
signals or properties we must NEVER warn about unknown properties or
drop unknown signals or disallow unknown method invocations when we
have an expected interface.
So this means that the expected_interface machinery is only useful for
checking that the service didn't break ABI.
Also update the docs so it is clear exactly what it means to have an
expected interface.
https://bugzilla.gnome.org/show_bug.cgi?id=660886
Signed-off-by: David Zeuthen <davidz@redhat.com>
We can just assume that strerror/strsignal are available
nowadays. At the same time, drop use of thread-private storage.
Instead, always return interned strings.
https://bugzilla.gnome.org/show_bug.cgi?id=660849
These were the last users of the dynamic allocation API.
Keep the uses in glib/tests/mutex.c since this is actually meant to test
the API (which has to continue working, even if it is deprecated).
https://bugzilla.gnome.org/show_bug.cgi?id=660739
GTimer no longer uses the thread system for time information and
g_thread_init() no longer does anything, so remove the doubly-untrue
warning about these topics.
https://bugzilla.gnome.org/show_bug.cgi?id=527214
We can't initialise gslice from a ctor because g_slice_set_config() must
be called before gslice initialisation.
Instead, do the initialisation in a threadsafe way from the
initialisation function for the thread private data. This will only be
called once per thread so the synchronisation doesn't pose a significant
overhead here.
Ensure that we try to grab the thread private data directly on entrance
to g_slice_alloc() so that we force the initialisation to occur.
Grabbing the private data is the common case anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=660887
Instead of running the GPrivate destructors from our thread proxy code,
run it from the DllMain handler for the DLL_THREAD_DETACH case.
This should ensure that thread-local data is free at the exit of all
threads -- not just the ones we created for ourselves.
https://bugzilla.gnome.org/show_bug.cgi?id=660745
Make sure that it calls absolutely nothing that may ever recurse back
into GLib again:
- g_ascii_strcasecmp() is unsafe because it has g_return_if_fail() at
the top. As far as I know, the only ASCII character letter that
would get special treatment here is "i" and that appears in neither
"help" nor "all".
- g_getenv() is very complicated on Windows, so use a simple version
that is sufficient for our purposes.
Now that it's completely safe, we can just call it from g_logv() in the
usual way without all of the hacks.
https://bugzilla.gnome.org/show_bug.cgi?id=660744
Add _g_io_module_get_default(), which implements the
figure-out-the-best-available-module-that-is-actually-usable logic,
and use that to simplify g_proxy_resolver_get_default(),
g_settings_backend_get_default(), g_tls_backend_get_default(), and
g_vfs_get_default().
https://bugzilla.gnome.org/show_bug.cgi?id=620932
g_file_make_directory_with_parents() will fail for already
existing directories, unlike g_mkdir_with_parents(), so mention
this clearly in the docs.
https://bugzilla.gnome.org/show_bug.cgi?id=660791
The GIOScheduler was using a GCond in a way that didn't deal with the
possibility of spurious wakeups. Add an explicit predicate and a loop.
Problem caught by Matthias Clasen.
https://bugzilla.gnome.org/show_bug.cgi?id=660739
