BluetoothAdapter.getManager() added; BluetoothManager.Settings added; D*Manager.getManager() use 'Magic Statics' now

- Magic Statics usage to avoid synchronization for singletons, like C++11

- BluetoothManager.Settings provide the Direct-BT related settings of isCharacteristicValueCacheNotificationSupported(),
  moved from the BluetoothFactory.

- Having implementation agnostic access to the Manager from Adapter is helpful for user applications,
  as this notion was lost during the interface abstraction (refactoring split for having multiple implementations).

1 files changed, 1 insertions, 1 deletions

diff --git a/api/direct_bt/DBTAdapter.hpp b/api/direct_bt/DBTAdapter.hpp
index 7130b1e0..0b0adaba 100644
--- a/api/direct_bt/DBTAdapter.hpp
+++ b/api/direct_bt/DBTAdapter.hpp
@@ -346,7 +346,7 @@ namespace direct_bt {
             void setBondable(bool value) noexcept;
 
             /**
-             * Returns a reference to the used singleton DBTManager instance.
+             * Returns a reference to the used singleton DBTManager instance, used to create this adapter.
              */
             DBTManager& getManager() const noexcept { return mgmt; }