qapi: introduce "size" type

v1->v2:
- fall back to uint64 rather than int

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/qapi/qapi-visit-core.h b/qapi/qapi-visit-core.h
index a19d70c104..60acedac77 100644
--- a/qapi/qapi-visit-core.h
+++ b/qapi/qapi-visit-core.h
@@ -60,6 +60,8 @@ struct Visitor
     void (*type_int16)(Visitor *v, int16_t *obj, const char *name, Error **errp);
     void (*type_int32)(Visitor *v, int32_t *obj, const char *name, Error **errp);
     void (*type_int64)(Visitor *v, int64_t *obj, const char *name, Error **errp);
+    /* visit_type_size() falls back to (*type_uint64)() if type_size is unset */
+    void (*type_size)(Visitor *v, uint64_t *obj, const char *name, Error **errp);
 };
 
 void visit_start_handle(Visitor *v, void **obj, const char *kind,
@@ -85,6 +87,7 @@ void visit_type_int8(Visitor *v, int8_t *obj, const char *name, Error **errp);
 void visit_type_int16(Visitor *v, int16_t *obj, const char *name, Error **errp);
 void visit_type_int32(Visitor *v, int32_t *obj, const char *name, Error **errp);
 void visit_type_int64(Visitor *v, int64_t *obj, const char *name, Error **errp);
+void visit_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp);
 void visit_type_bool(Visitor *v, bool *obj, const char *name, Error **errp);
 void visit_type_str(Visitor *v, char **obj, const char *name, Error **errp);
 void visit_type_number(Visitor *v, double *obj, const char *name, Error **errp);