+ | VIR_FROM_OPENVZ -> "VIR_FROM_OPENVZ"
+ | VIR_FROM_XENXM -> "VIR_FROM_XENXM"
+ | VIR_FROM_STATS_LINUX -> "VIR_FROM_STATS_LINUX"
+ | VIR_FROM_UNKNOWN i -> "VIR_FROM_" ^ string_of_int i
+
+ type level =
+ | VIR_ERR_NONE
+ | VIR_ERR_WARNING
+ | VIR_ERR_ERROR
+ | VIR_ERR_UNKNOWN_LEVEL of int
+
+ let string_of_level = function
+ | VIR_ERR_NONE -> "VIR_ERR_NONE"
+ | VIR_ERR_WARNING -> "VIR_ERR_WARNING"
+ | VIR_ERR_ERROR -> "VIR_ERR_ERROR"
+ | VIR_ERR_UNKNOWN_LEVEL i -> "VIR_ERR_LEVEL_" ^ string_of_int i