That wrapper is going to be used to safely log a json_object, as
libxl__json_object_to_json return NULL on error. In the error case,
JSON() will return an invalid json string.
Signed-off-by: Anthony PERARD <anthony.per...@citrix.com>
Acked-by: Ian Jackson <ian.jack...@eu.citrix.com>
---
Notes:
v8:
Acked
v7:
new patch
There are no user yet because the first users is going to be in
"libxl_qmp: Implementation of libxl__ev_qmp_*" which is already a
huge patch, that 3 lines might get lost.
tools/libxl/libxl_internal.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index aa9059ffec..16e6eb6c5e 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -2046,6 +2046,9 @@ _hidden libxl__json_object *libxl__json_parse(libxl__gc
*gc_opt, const char *s);
_hidden char *libxl__json_object_to_json(libxl__gc *gc,
const libxl__json_object *args);
+/* Always return a valid string, but invalid json on error. */
+#define JSON(o) \
+ (libxl__json_object_to_json(gc, (o)) ? : "<invalid-json-object>")
/* Based on /local/domain/$domid/dm-version xenstore key
* default is qemu xen traditional */
--
Anthony PERARD
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