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X-Received-From: 2607:f8b0:4864:20::b4a X-Mailman-Approved-At: Wed, 22 May 2019 21:19:54 -0400 Subject: [Qemu-devel] [PATCH] vmstate: Add VMSTATE_OPAQUE to save/load complex data structures X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: rkir--- via Qemu-devel Reply-To: rkir@google.com Cc: Roman Kiryanov Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Roman Kiryanov VMSTATE_OPAQUE allows passing user defined functions to save and load vmstate for cases when data structures do not fit into int/struct/array terms. Signed-off-by: Roman Kiryanov --- include/migration/vmstate.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 9224370ed5..2736daef17 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -737,6 +737,19 @@ extern const VMStateInfo vmstate_info_qtailq; .start =3D offsetof(_type, _next), = \ } =20 +/* Provides a way to save/load complex data structures that do not + * fit into int/struct/array terms. + * _info: a user defined instance of VMStateInfo to handle saving and load= ing. + */ +#define VMSTATE_OPAQUE(_name, _version, _info) { \ + .name =3D _name, \ + .version_id =3D (_version), \ + .size =3D 0, \ + .info =3D &(_info), \ + .flags =3D VMS_SINGLE, \ + .offset =3D 0, \ +} + /* _f : field name _f_n : num of elements field_name _n : num of elements --=20 2.21.0.1020.gf2820cf01a-goog