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Thu, 20 Apr 2023 08:57:28 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Elena Ufimtseva , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , peter.maydell@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , Thomas Huth , Markus Armbruster , Alexandre Iooss , John G Johnson , Jagannathan Raman , Juan Quintela , Eduardo Habkost , Richard Henderson , Mahmoud Mandour , Mark Cave-Ayland Subject: [PATCH 8/9] docs/devel: mention the spacing requirement for QOM Date: Thu, 20 Apr 2023 16:57:22 +0100 Message-Id: <20230420155723.1711048-9-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230420155723.1711048-1-alex.bennee@linaro.org> References: <20230420155723.1711048-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32f; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1682006282355100002 We have a more complete document on QOM but we should at least mention the style requirements in the style guide. Signed-off-by: Alex Benn=C3=A9e Cc: Mark Cave-Ayland Reviewed-by: Juan Quintela --- docs/devel/qom.rst | 2 ++ docs/devel/style.rst | 29 +++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/docs/devel/qom.rst b/docs/devel/qom.rst index 3e34b07c98..c9237950d0 100644 --- a/docs/devel/qom.rst +++ b/docs/devel/qom.rst @@ -1,3 +1,5 @@ +.. _qom: + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D The QEMU Object Model (QOM) =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D diff --git a/docs/devel/style.rst b/docs/devel/style.rst index 5bc6f2f095..0bd01f3fca 100644 --- a/docs/devel/style.rst +++ b/docs/devel/style.rst @@ -628,6 +628,35 @@ are still some caveats to beware of QEMU Specific Idioms ******************** =20 +QEMU Object Model Declarations +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D + +The QEMU Object Model (QOM) provides a framework for handling objects +in the base C language. The first declaration of a storage or class +structure should always be the parent and leave a visual space between +that declaration and the new code. + +.. code-block:: c + + typedef struct MyDeviceState { + DeviceState parent_obj; + + /* Properties */ + int prop_a; + char *prob_b; + /* Other stuff */ + int internal_state; + } MyDeviceState; + + typedef struct MyDeviceClass { + ObjectClass parent_class; + + void (*new_fn1)(void); + bool (*new_fn2)(CPUState *); + } MyDeviceClass; + +See :ref:`qom` for more details. + Error handling and reporting =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =20 --=20 2.39.2