C++: Utilize 'currentScanType' for start/stop discovery same as for Java code; use atomic<ScanType> avoiding race conditions

C++/Java: Only update the discovering state for false in DISCOVERING listener if keepAlive == false.

C++ like Java pendant, only perform start/stop discovery in appropriate discovery state

C++ expose discovery state 'currentScanType'

1 files changed, 4 insertions, 0 deletions

diff --git a/java/direct_bt/tinyb/DBTAdapter.java b/java/direct_bt/tinyb/DBTAdapter.java
index 4f0d1025..4cbc071f 100644
--- a/java/direct_bt/tinyb/DBTAdapter.java
+++ b/java/direct_bt/tinyb/DBTAdapter.java
@@ -429,6 +429,10 @@ public class DBTAdapter extends DBTObject implements BluetoothAdapter
             if( DEBUG ) {
                 System.err.println("Adapter.StatusListener.DISCOVERING: enabled "+enabled+", keepAlive "+keepAlive+" on "+adapter);
             }
+            if( !enabled && keepAlive ) {
+                // Don't update isDiscovering:=false and don't notify user IF keepAlive!
+                return;
+            }
             if( isDiscovering.compareAndSet(!enabled, enabled) ) {
                 synchronized(userCallbackLock) {
                     if( null != userDiscoveringNotificationCB ) {