qapi: Change data type of the FOO_lookup generated for enum FOO

Currently, a FOO_lookup is an array of strings terminated by a NULL
sentinel.

A future patch will generate enums with "holes".  NULL-termination
will cease to work then.

To prepare for that, store the length in the FOO_lookup by wrapping it
in a struct and adding a member for the length.

The sentinel will be dropped next.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170822132255.23945-13-marcandre.lureau@redhat.com>
[Basically redone]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1503564371-26090-16-git-send-email-armbru@redhat.com>
[Rebased]
This commit is contained in:
Marc-André Lureau 2017-08-24 10:46:10 +02:00 committed by Markus Armbruster
parent 788b305c91
commit f7abe0ecd4
33 changed files with 106 additions and 89 deletions

View file

@ -153,7 +153,7 @@ def gen_visit_enum(name):
void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error **errp)
{
int value = *obj;
visit_type_enum(v, name, &value, %(c_name)s_lookup, errp);
visit_type_enum(v, name, &value, &%(c_name)s_lookup, errp);
*obj = value;
}
''',