The test performs implicit autolaunching of a bus
and checks if it is connectible.
In build the test is moved from "only non-windows with have_dbus_daemon"
to "anywhere".
This is intentional: actually it doesn't execute any external
binaries on unix (so doesn't require dbus_daemon)
and now has win32 implementation.
The test has some problems that are not problems of test itself,
but are reasoned by current win32 implementation:
- since the implementation uses global win32 kernel objects
with fixed names not depending on g_get_user_runtime_dir or other context
if preexisting bus running by some other libgio-using application
the test would silently pass.
- since the implementation uses problematic time-based synchronization,
that has a race condition between opening and reading mmaped address,
the test may randomly fail (I'd not seen this in practice).
- since the implementation autolaunched process works for 3 seconds
after last client disconnects, the executed subprocess runs for 3 seconds
after test exit, maybe locking the libgio-2.0-0.dll file for that time.
This is a bit of breaking change:
After this commit the apps relying of win32 dbus autolaunching,
need to install gdbus.exe alongside with libgio-2.0-0.dll.
A new command for gdbus tool is used for running server:
gdbus.exe _win32_run_session_bus
To implement it gdbus.exe uses the same exported function
g_win32_run_session_bus that earlier was used by rundll.
So (private) ABI was not changed.
It runs the bus syncronously, exiting after inactivity timeout -
all exactly like it was runed earlier with the help of rundll32.
While private exported function may have _some_
version compatibility issues between gdbus.exe and libgio-2.0-0.dll
compiling dbus server registration logic directly into gdbus.exe
can lead to _more hidden and more complex_ compatibility issues
since the names and behaviour of syncronization objects
used to publish server address would be required compatible between
gdbus.exe and libgio-2.0-0.dll.
So using "private" exported function to call
looks like more safe behaviour.
gdbus.exe binary was selected for this task since
it has corresponding name and at least for msys2 is shippied
in same package with libgio-2.0-0.dll
turn_off_the_starting_cursor function is also kept as is,
however it is not obvious if it is still needed
(by now I failed reproducing original issue).
Explicit g_warnings added to help with possible
problematic cases for absent or incompatible gdbus.exe
Mainloop is created after successful daemon creation
Before this change the function leaked mainloop on daemon creation fail
nm_conn_to_g_conn already handles UNKNOWN like NONE (returning
G_NETWORK_CONNECTIVITY_LOCAL in both cases). So in sync_properties
we should also set new_connectivity to G_NETWORK_CONNECTIVITY_LOCAL
for both NM_CONNECTIVITY_UNKNOWN and NM_CONNECTIVITY_NONE.
This has the added benefit that when NetworkManager returns the network
connectivity is UNKNOWN, we set network_available to FALSE as it should
be. Previously, there were cases in a laptop with no network access,
that g_network_monitor_get_network_available returned true, which was
wrong and is also fixed with this commit.
We want GLib to build correctly with this defined, and for all its tests
to still pass.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1708
Both GCC and Clang treat this as a hint that the code won’t be reached,
which helps in the cases where they might not have automatically
detected it already.
It doesn’t change any behaviour of the compiled code, other than
allowing the compiler to go off into undefined behaviour.
See
https://gcc.gnu.org/onlinedocs/gcc-8.3.0/gcc/Other-Builtins.html#index-_005f_005fbuiltin_005funreachable.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative failure messages, and aren’t compiled
out when building with G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
In order to allow GLib itself to be built with G_DISABLE_ASSERT defined,
we need to explicitly undefine it when building the tests, otherwise
g_test_init() turns into an abort.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1708
Move them next to their definitions, so they’re more likely to be kept
up to date.
This doesn’t modify any of the documentation comments at all.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
g_assert_*() give more informative error messages on failure, and can’t
be disabled by G_DISABLE_ASSERT.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This allows referencig them from more than single .c file.
Implementation moved without changes
from gdbusaddress.c to gdbusprivate.c
g_win32_run_session_bus signature also kept, so ABI unchanged.
Closes: https://gitlab.gnome.org/GNOME/glib/issues/1566
Short names were used in win32 implementation to allow launching
on installations where full path to libgio-2.0-0.dll contain spaces.
However, short names are optional on windows: so if they were disabled
that method fails - see issue linked above.
Since rundll32 doesn't support neither spaces, nor quotes in cmdline
this patch changes rundll32 argument to just .\gio-dll-name.dll
and uses the entire path directory containing gio dll as rundll32
current directory.
Added comments informing about potential subtleties discovered during
writing test for gdbusaddress on win32.
There are not known to have real-world user-visible effect,
so by now I'm only adding comments without creating issues.
Any function which requires g_quark_init() to have been called first
cannot be called before the library constructors have finished running.
In particular, this means that g_quark_from_static_string() or
g_intern_static_string() can’t be used to initialize C++ globals.
Do this, rather than adding a conditional call to g_quark_init() to all
these functions, because such a call was previously removed from the
functions to improve performance (quarks are used a lot in the
implementation of GObject for properties and signals). That’s the reason
why g_quark_init() was originally moved out to a library constructor.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1177
g_object_set_data() should only ever be used with a small, bounded set
of keys, or the memory usage of the quark lookup table will grow
unbounded. Document that.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #682
Those lists were getting very long. We can’t quite entirely automate the
list generation since Meson doesn’t have a range() function, but we can
at least combine three of them into one.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
One test is for _g_win32_subst_pid_and_event().
Two tests for crashing with different exceptions (access violation
and illegal instruction).
And one test for running a debugger.
Install a Vectored Exception Handler[0]. Its sole purpose is to catch
some exceptions (access violations, stack overflows, illegal
instructions and debug breaks - by default, but it can be made to catch
any exception for which a code is known) and run a debugger in response.
This allows W32 glib applications to be run without a debugger,
but at the same time allows a debugger to be attached in case
something happens.
The debugger is run with a new console, unless an environment variable
is set to allow it to inherit the console of the crashing process.
The short list of handleable exceptions is there to ensure that
this handler won't run a debugger to "handle" utility exceptions,
such as the one that is used to communicate thread names to a debugger.
The handler is installed to be called last, and shouldn't interfere
with any user-installed handlers.
There's nothing fancy about the way it runs a debugger (it doesn't even
support unicode in paths), and it deliberately avoids using glib code.
The handler will also print a bit of information about the exception
that it caught, and even more information for well-known exceptions,
such as access violation.
The whole scheme is similar to AeDebug[1] and, in fact, the signal-event
gdb command was originally implemented for this very purpose.
[0]: https://docs.microsoft.com/en-us/windows/desktop/debug/vectored-exception-handling
[1]: https://docs.microsoft.com/en-us/windows/desktop/debug/configuring-automatic-debugging
Commit f975858e86 removed the NULL check in g_cancellable_cancel() by
accident which makes it crash when called with NULL.
Add the check back and add a test so this doesn't happen again.
Fixes#1710
