Commit 2cf01486 authored by Dr. David Alan Gilbert's avatar Dr. David Alan Gilbert Committed by Michael S. Tsirkin
Browse files

Add VMSTATE_STRUCT_VARRAY_KNOWN 



At the moment we have VMSTATE_STRUCT_ARRAY that requires
the field is declared as an array of fixed size.
We also have VMSTATE_STRUCT_VARRAY_UINT* that allows
a field declared as a pointer, but requires that the length
is a field member in the structure being loaded/saved.

VMSTATE_STRUCT_VARRAY_KNOWN is for arrays defined as pointers
yet we somehow know the length of.

Signed-off-by: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: default avatarAmit Shah <amit.shah@redhat.com>
parent 424e4a87

include/migration/vmstate.h

+13 −0
Original line number Diff line number Diff line
@@ -374,6 +374,19 @@ extern const VMStateInfo vmstate_info_bitmap; 
    .offset       = vmstate_offset_array(_state, _field, _type, _num),\

}



/* a variable length array (i.e. _type *_field) but we know the

 * length

 */

#define VMSTATE_STRUCT_VARRAY_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \

    .name       = (stringify(_field)),                               \

    .num          = (_num),                                          \

    .version_id = (_version),                                        \

    .vmsd       = &(_vmsd),                                          \

    .size       = sizeof(_type),                                     \

    .flags      = VMS_STRUCT|VMS_ARRAY,                              \

    .offset     = offsetof(_state, _field),                          \

}



#define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \

    .name       = (stringify(_field)),                               \

    .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \