add UNKNOWN AvailabilityStatus

Support cases where we're simply waiting for a callback to set our
variable to either AVAILABLE or NOT_AVAILABLE. Without the UNKNOWN
value, another boolean variable was needed to indicate if the
AvailabilityStatus was already set.

diff --git a/src/CommonAPI/types.h b/src/CommonAPI/types.h
index 69ebbd1..13c36aa 100644 (file)
--- a/src/CommonAPI/types.h
+++ b/src/CommonAPI/types.h
@@ -13,6 +13,7 @@
 namespace CommonAPI {
 
 enum class AvailabilityStatus {
+       UNKNOWN,
        AVAILABLE,
        NOT_AVAILABLE
 };