xemu/include/qapi
David Hildenbrand c9fba9de89 qapi: Rewrite string-input-visitor's integer and list parsing
The input visitor has some problems right now, especially
- unsigned type "Range" is used to process signed ranges, resulting in
  inconsistent behavior and ugly/magical code
- uint64_t are parsed like int64_t, so big uint64_t values are not
  supported and error messages are misleading
- lists/ranges of int64_t are accepted although no list is parsed and
  we should rather report an error
- lists/ranges are preparsed using int64_t, making it hard to
  implement uint64_t values or uint64_t lists
- types that don't support lists don't bail out
- visiting beyond the end of a list is not handled properly
- we don't actually parse lists, we parse *sets*: members are sorted,
  and duplicates eliminated

So let's rewrite it by getting rid of usage of the type "Range" and
properly supporting lists of int64_t and uint64_t (including ranges of
both types), fixing the above mentioned issues.

Lists of other types are not supported and will properly report an
error. Virtual walks are now supported.

Tests have to be fixed up:
- Two BUGs were hardcoded that are fixed now
- The string-input-visitor now actually returns a parsed list and not
  an ordered set.

Please note that no users/callers have to be fixed up. Candidates using
visit_type_uint16List() and friends are:
- backends/hostmem.c:host_memory_backend_set_host_nodes()
-- Code can deal with duplicates/unsorted lists
- numa.c::query_memdev()
-- via object_property_get_uint16List(), the list will still be sorted
   and without duplicates (via host_memory_backend_get_host_nodes())
- qapi-visit.c::visit_type_Memdev_members()
- qapi-visit.c::visit_type_NumaNodeOptions_members()
- qapi-visit.c::visit_type_RockerOfDpaGroup_members
- qapi-visit.c::visit_type_RxFilterInfo_members()
-- Not used with string-input-visitor.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181121164421.20780-7-david@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13 19:10:06 +01:00
..
qmp scripts: Remove check-qerror.sh 2018-10-19 14:40:15 +02:00
clone-visitor.h Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
dealloc-visitor.h include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00
error.h error: Fix use of error_prepend() with &error_fatal, &error_abort 2018-10-19 14:51:34 +02:00
opts-visitor.h Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
qmp-event.h qapi: Drop qapi_event_send_FOO()'s Error ** argument 2018-08-28 18:21:38 +02:00
qobject-input-visitor.h Include qapi/qmp/qobject.h exactly where needed 2018-02-09 13:52:15 +01:00
qobject-output-visitor.h Include qapi/qmp/qobject.h exactly where needed 2018-02-09 13:52:15 +01:00
string-input-visitor.h qapi: Rewrite string-input-visitor's integer and list parsing 2018-12-13 19:10:06 +01:00
string-output-visitor.h qapi: Add new visit_complete() function 2016-07-06 10:52:04 +02:00
util.h qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
visitor-impl.h qapi: Use QNull for a more regular visit_type_null() 2017-07-24 13:35:11 +02:00
visitor.h qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-02 13:45:57 -06:00