C++ multithreading fixes and example

DBTAdapter:
  - Add HCI mutex
  - openHCI() returns already open HCIComm
  - Notify device on disconnected

DBTDevice:
  - Add data mutex, covering race-condition on data update(..) and data usage
  - notifyDisconnected(): Clear hciConnHandle
  - getServices() -> getGATTServices() to differenciate from scan-result

+++

Java/JNI DBTAdapter:
  - Remove open/openImpl() in favor of implicit openHCI() @ connect call.

+++

Added multithreading example dbt_scanner10.cpp

1 files changed, 0 insertions, 9 deletions

diff --git a/java/direct_bt/tinyb/DBTAdapter.java b/java/direct_bt/tinyb/DBTAdapter.java
index 6c9e9f03..9b60d27b 100644
--- a/java/direct_bt/tinyb/DBTAdapter.java
+++ b/java/direct_bt/tinyb/DBTAdapter.java
@@ -233,13 +233,6 @@ public class DBTAdapter extends DBTObject implements BluetoothAdapter
 
     /* internal */
 
-    private synchronized void open() {
-        if( !isOpen ) {
-            isOpen = openImpl();
-        }
-    }
-    private native boolean openImpl();
-
     @Override
     protected native void deleteImpl();
 
@@ -247,7 +240,6 @@ public class DBTAdapter extends DBTObject implements BluetoothAdapter
 
     @Override
     public synchronized boolean startDiscovery() throws BluetoothException {
-        open();
         removeDevices();
         final boolean res = startDiscoveryImpl();
         isDiscovering = res;
@@ -278,7 +270,6 @@ public class DBTAdapter extends DBTObject implements BluetoothAdapter
 
     @Override
     public int removeDevices() throws BluetoothException {
-        open();
         final int cj = removeDiscoveredDevices();
         final int cn = removeDevicesImpl();
         if( cj != cn ) {