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bh=JiBAY8Ph8pCMCkLPiTkLWgfEcm4xATm5/gqCF2fhqjM=; b=i2wNnZ8kbxHOGTVtGDeoqYp5voOKQHlSVL2VGDRV+3cs6NYjh9dwmppW+k/2GuaHOottAd 429p62as4ewTFq5yJNYcT/nL7wE6/8IPd0/PjFsHU0yMD6d7sAlQYXpLiT7zUPU+Ai89jH WZw2OGMp7QlxIS/TX3YOMxCl1FTULNg= X-MC-Unique: TExDeZRXMbmvjxNJn3wE0A-1 From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH v6 06/10] qapi: Implement deprecated-output=hide for QMP introspection Date: Fri, 12 Mar 2021 16:32:06 +0100 Message-Id: <20210312153210.2810514-7-armbru@redhat.com> In-Reply-To: <20210312153210.2810514-1-armbru@redhat.com> References: <20210312153210.2810514-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=63.128.21.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcandre.lureau@gmail.com, mdroth@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This policy suppresses deprecated bits in output, and thus permits "testing the future". Implement it for QMP command query-qmp-schema: suppress information on deprecated commands, events and object type members, i.e. anything that has the special feature flag "deprecated". Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake --- monitor/qmp-cmds-control.c | 71 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/monitor/qmp-cmds-control.c b/monitor/qmp-cmds-control.c index 25afd0867f..bcfccc4ac4 100644 --- a/monitor/qmp-cmds-control.c +++ b/monitor/qmp-cmds-control.c @@ -158,6 +158,74 @@ EventInfoList *qmp_query_events(Error **errp) return ev_list; } =20 +static void *split_off_generic_list(void *list, + bool (*splitp)(void *elt), + void **part) +{ + GenericList *keep =3D NULL, **keep_tailp =3D &keep; + GenericList *split =3D NULL, **split_tailp =3D &split; + GenericList *tail; + + for (tail =3D list; tail; tail =3D tail->next) { + if (splitp(tail)) { + *split_tailp =3D tail; + split_tailp =3D &tail->next; + } else { + *keep_tailp =3D tail; + keep_tailp =3D &tail->next; + } + } + + *keep_tailp =3D *split_tailp =3D NULL; + *part =3D split; + return keep; +} + +static bool is_in(const char *s, strList *list) +{ + strList *tail; + + for (tail =3D list; tail; tail =3D tail->next) { + if (!strcmp(tail->value, s)) { + return true; + } + } + return false; +} + +static bool is_entity_deprecated(void *link) +{ + return is_in("deprecated", ((SchemaInfoList *)link)->value->features); +} + +static bool is_member_deprecated(void *link) +{ + return is_in("deprecated", + ((SchemaInfoObjectMemberList *)link)->value->features); +} + +static SchemaInfoList *zap_deprecated(SchemaInfoList *schema) +{ + void *to_zap; + SchemaInfoList *tail; + SchemaInfo *ent; + + schema =3D split_off_generic_list(schema, is_entity_deprecated, &to_za= p); + qapi_free_SchemaInfoList(to_zap); + + for (tail =3D schema; tail; tail =3D tail->next) { + ent =3D tail->value; + if (ent->meta_type =3D=3D SCHEMA_META_TYPE_OBJECT) { + ent->u.object.members + =3D split_off_generic_list(ent->u.object.members, + is_member_deprecated, &to_zap); + qapi_free_SchemaInfoObjectMemberList(to_zap); + } + } + + return schema; +} + SchemaInfoList *qmp_query_qmp_schema(Error **errp) { QObject *obj =3D qobject_from_qlit(&qmp_schema_qlit); @@ -171,5 +239,8 @@ SchemaInfoList *qmp_query_qmp_schema(Error **errp) qobject_unref(obj); visit_free(v); =20 + if (compat_policy.deprecated_output =3D=3D COMPAT_POLICY_OUTPUT_HIDE) { + return zap_deprecated(schema); + } return schema; } --=20 2.26.2