Make the generated GDBus-based code use GVariantBuilder with a static
GVariantType to avoid copying the GVariantType on each use.
This is gated behind a GLib 2.83.0 check.
The license and copyright are already stated in human-readable form in
these files, so this should be uncontroversial.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
Helps: #1415
If we're writing the body to standard output, we cannot know what the
filename of the corresponding header is going to be, but it seems
vanishingly unlikely that it will be either `stdout.h` (which we would
traditionally have generated) or `-.h` (which we would have generated
since !3886).
This makes some of the output snippets sufficiently short that black(1)
requires that they are folded into a single line.
Signed-off-by: Simon McVittie <smcv@collabora.com>
In command-line tools, ordinary filenames normally do not have
special-cased meanings, so commit 3ef742eb "Don't skip dbus-codegen tests
on Win32" was a command-line API break: in the unlikely event that a
user wanted to write to a file named exactly `stdout`, this would have
been an incompatible change.
There is a conventional pseudo-filename to represent standard output,
which is `-` (for example `cat -` is a no-op filter). Adding support
for this is technically also a command-line API break (in the very
unlikely event that a user wants to write to a file named exactly `-`,
they would now have to write it as `./-`), but filenames starting with
a dash often require special treatment anyway, so this probably will not
come as a surprise to anyone.
When the output filename is `-` we don't want to use `#ifdef _____` as
a header guard, so special-case it as `__STDOUT__` as before.
Signed-off-by: Simon McVittie <smcv@collabora.com>
On CHERI-enabled systems we use uintptr_t as the underlying storage for
GType and therefore casting to gsize strips the upper bits from a pointer.
Fix this by casting via uintptr_t instead and introduce a new set of
macros to convert between GType and pointers.
Avoid generating more code than needed, so other than continuing using
the generic glib marshallers when possible, define once the custom ones
we need for each file we generate.
The marshallers are then re-used across all the interfaces defined
without duplicating the code size.
This is the same we're doing in code generated by glib-genmarshaller and
what gmarshal does internally.
Since the generated gdbus C code can be considered private too, this is
safe to do, and will allow faster access to GValue objects.
Get rid completely of the usage of the generic marshaller in gdbus
generated code, using instead specific marshallers.
Code is not yet optimized fully since we may still have duplicated
functions to be generated.
Closes: https://gitlab.gnome.org/GNOME/glib/-/issues/3028
We relied on g_cclosure_marshal_generic() to easily generate signal
marshallers, but this relies on inspecting each parameter type with ffi
and this implies a performance hit, other than breaking the stack-frame
unwinder used by Linux perf and so by sysprof.
Given that we know the types we work on, it's easy enough to generate
the marshallers ourself.
Helps with: https://gitlab.gnome.org/GNOME/glib/-/issues/3028
We were using emit_by_name which implies looking up for the signal name,
while the generated code can easily remember the signal ID and use it
instead, allowing direct access to the signal emission.
The version of `black` on the CI server wanted these changes. Make them
to keep the `style-check-diff` CI job from constantly failing.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This commit is the unmodified results of running
```
black $(git ls-files '*.py')
```
with black version 19.10b0. See #2046.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Like G_SOURCE_REMOVE and G_SOURCE_CONTINUE, these make it clearer what
it means to return TRUE or FALSE.
In particular, in GDBus methods that fail, the failure case still needs
to return TRUE (unlike the typical GError pattern), leading to comments
like this:
g_dbus_method_invocation_return_error (invocation, ...);
return TRUE; /* handled */
which can now be replaced by:
g_dbus_method_invocation_return_error (invocation, ...);
return G_DUS_METHOD_INVOCATION_HANDLED;
G_DBUS_METHOD_INVOCATION_UNHANDLED is added for symmetry, but is very
rarely (perhaps never?) useful in practice.
Signed-off-by: Simon McVittie <smcv@collabora.com>
This was mostly machine generated with the following command:
```
codespell \
--builtin clear,rare,usage \
--skip './po/*' --skip './.git/*' --skip './NEWS*' \
--write-changes .
```
using the latest git version of `codespell` as per [these
instructions](https://github.com/codespell-project/codespell#user-content-updating).
Then I manually checked each change using `git add -p`, made a few
manual fixups and dropped a load of incorrect changes.
There are still some outdated or loaded terms used in GLib, mostly to do
with git branch terminology. They will need to be changed later as part
of a wider migration of git terminology.
If I’ve missed anything, please file an issue!
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This adds three options to gdbus-codegen so that we may be able to
use a self-defined symbol decorator, such as _GLIB_EXTERN, to decorate
the generated prototypes, to be used possibly to export the symbols, if
needed.
The other two options allows including headers that are required for the
specified symbol decorator to be usable and preprocessor macros that are
required for the symbol decorator to be defined appropriately, also when
needed.
Python tuple comparisons actually do what we want for comparing major
and minor versions, so tidy things up by using that.
This introduces no functional changes.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This makes it consistent with the `GLIB_MIN_REQUIRED` defines which are
used for API stability/versioning in C code.
It doesn’t otherwise change the behaviour of the `--glib-min-version`
argument.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1993
Currently the code generated by gdbus-codegen uses
G_DBUS_CALL_FLAGS_NONE in its D-Bus calls, which occur for each method
defined by the input XML, and for proxy_set_property functions. This
means that if the daemon which implements the methods checks for
G_DBUS_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION and only does interactive
authorization if that flag is present, users of the generated code have
no way to cause the daemon to use interactive authorization (e.g. polkit
dialogs).
If we simply changed the generated code to always use
G_DBUS_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION, its users would have no
way to disallow interactive authorization (except for manually calling
the D-Bus method themselves).
So instead, this commit adds a GDBusCallFlags argument to method call
functions. Since this is an API break which will require changes in
projects using gdbus-codegen code, the change is conditional on the
command line argument --glib-min-version having the value 2.64 or
higher.
The impetus for this change is that I'm changing accountsservice to
properly respect G_DBUS_FLAGS_ALLOW_INTERACTIVE_AUTHORIZATION, and
libaccountsservice uses generated code for D-Bus method calls. So
these changes will allow libaccountsservice to continue allowing
interactive authorization, and avoid breaking any users of it which
expect that. See
https://gitlab.freedesktop.org/accountsservice/accountsservice/merge_requests/46
It might make sense to also let GDBusCallFlags be specified for property
set operations, but that is not needed in the case of accountsservice,
and would require significant work and breaking API in multiple places.
Similarly, the generated code currently hard codes -1 as the timeout
value when calling g_dbus_proxy_call*(). Add a timeout_msec argument so
the user of the generated code can specify the timeout as well.
Also, test this new API. In gio/tests/codegen.py we test that the new
arguments are generated if and only of --glib-min-version is used with a
value greater than or equal to 2.64, and in gio/tests/meson.build we
test that the generated code with the new API can be linked against.
The test_unix_fd_list() test also needed modification to continue
working now that we're using gdbus-test-codegen.c with code generated
with --glib-min-version=2.64 in one test.
Finally, update the docs for gdbus-codegen to explain the effect of
using --glib-min-version 2.64, both from this commit and from
"gdbus-codegen: Emit GUnixFDLists if an arg has type `h` w/
min-version".
This can be used by callers to opt-in to backwards-incompatible changes
to the behaviour or output of `gdbus-codegen` in future. This commit
doesn’t introduce any such changes, though.
Documentation and unit tests included.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1726
gtk-doc switched from DocBook to Markdown ages ago. There is no Markdown
equivalent for `<warning>`, so just drop it. It wasn’t adding anything
particularly valuable to the documentation.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1130
gtk-doc long since switched to Markdown, so we shouldn’t be emitting
DocBook `<link>` tags.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1130
It’s not particularly useful to put the gdbus-codegen version or the
name of the input file into the output from `gdbus-codegen`, and it
makes the output less reproducible. Drop it.
Also clarify the licensing.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1612
Whitelist a safe set of characters for use in header guards instead of
maintaining a (growing) blacklist.
The whitelist is intentionally short since reading up on all
peculiarities of the C and C++ standard for identifiers is not my idea
of fun. :)
Fixes#1379
If using the --interface-info-{body,header} options to gdbus-codegen,
and the first interface to be outputted has no methods, but does have
properties or signals, an uninitialised variable would be used for the
property/signal ‘since’ values.
In other situations, the ‘since’ value for a prior method would have
been incorrectly used for the properties/signals.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Previously, method and signal arguments were sorted by name, which
(assuming you don't happen to give your arguments
lexicographically-ordered names) means the generated signatures were
incorrect when there is more than 1 argument.
While sorting the methods and signals themselves (and properties, and
annotations on all these) is fine, it's easiest to not sort anything.
Since 1217b1bc4f, LICENSE_STR has taken two
parameters, not one. Without this change, running either mode fails
with a traceback like:
Traceback (most recent call last):
File "../gdbus-codegen", line 55, in <module>
sys.exit(codegen_main.codegen_main())
File ".../codegen_main.py", line 294, in codegen_main
gen.generate()
File ".../codegen.py", line 896, in generate
self.generate_body_preamble()
File ".../codegen.py", line 682, in generate_body_preamble
self.outfile.write(LICENSE_STR.format(config.VERSION))
IndexError: tuple index out of range
8916874ee6, which introduced these flags,
was actually merged after that commit, but I assume it was written
beforehand.
If a D-Bus interface was annotated with o.fd.DBus.Deprecated, then the
corresponding GObject property, in the common GInterface implemented
by the generated GDBusObjectProxies and GDBusObjectSkeletons, to
access the generated code for the D-Bus interface was not being marked
with G_PARAM_DEPRECATED, even though the gtk-doc snippet had the
'Deprecated: ' tag.
G_PARAM_DEPRECATED is older than gdbus-codegen, 2.26 and 2.30
respectively, hence it can be used unconditionally.
https://gitlab.gnome.org/GNOME/glib/merge_requests/485
If a D-Bus interface has a property that's annotated with
o.fd.DBus.Deprecated, then the corresponding GObject property was not
being marked with G_PARAM_DEPRECATED, even though the gtk-doc snippet
had the 'Deprecated: ' tag.
G_PARAM_DEPRECATED is older than gdbus-codegen, 2.26 and 2.30
respectively, hence it can be used unconditionally.
https://gitlab.gnome.org/GNOME/glib/merge_requests/485
The existing code was generating code with undefined results that modern compilers warn about:
accounts-generated.c:204:23: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
(GDBusArgInfo **) &_accounts_accounts_method_info_list_cached_users_OUT_ARG_pointers,
PEP8 says that:
"Comparisons to singletons like None should always be done with is or
is not, never the equality operators."
glib uses a mix of "== None" and "is None". This patch changes all
cases to the latter.
These generate basic .c and .h files containing the GDBusInterfaceInfo
for a D-Bus introspection XML file, but no other code (no skeletons,
proxies, GObjects, etc.).
This is useful for projects who want to describe their D-Bus interfaces
using introspection XML, but who wish to implement the interfaces
manually (for various reasons, typically because the skeletons generated
by gdbus-codegen are too simplistic and limiting). Previously, these
projects would have had to write the GDBusInterfaceInfo manually, which
is painstaking and error-prone.
The new --interface-info-[body|header] options are very similar to
--[body|header], but mutually exclusive with them.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795304
This makes it a bit easier for debugging which files were generated from
which introspection XML.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=650875
g_variant_get_objpathv() doesn’t exist. The code actually meant
g_variant_get_objv().
This fixes a leak with `ao`-type properties in generated code.
Previously they wouldn’t be freed; now the container is (correctly)
freed.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=770335
The class that generated both C header and code has been split into
two classes. These clases are now specialized on creating the header
or the body code.
All parameters that do not belong to each class have also been
deleted, so only the necessary parameters still remain. These also
includes the header and code file descriptors, leaving only the
corresponding file descriptor necessary for each class.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
The generation of the C header and code preambles have been split
in order to be able to generate both files separately in the future.
The functions for generating preambles and postambles have also been
renamed following the function names used in the glib-genmarshal
rewrite, so that they stay consistent.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
The #pragma once is widely supported preprocessor directive that can
be used instead of include guards.
This adds support for using optionally this directive instead of
include guards.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
`glib-genmarshal` and `glib-mkenums` use a `Color` class which
implements a number of print_* methods to print colored messages
to the standard error output.
In order to be consistent with those programs' output,
`gdbus-codegen` has also started using that same class and methods.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
