Everytime Bluetooth was turned off two file descriptors were not closed

Using close instead of shutdown on the file descriptors and only clear the file
descriptor that was closed. If both file descriptors are cleared the thread
will not be able to close it.

Author: Johannes Carlsson

core/jni/android_server_BluetoothEventLoop.cpp

@@ -564,7 +564,10 @@ static void *eventLoopMain(void *ptr) {
                                 NULL, NULL, NULL, NULL, NULL);
                         tearDownEventLoop(nat);
                         nat->vm->DetachCurrentThread();
-                        shutdown(nat->controlFdR,SHUT_RDWR);
+
+                        int fd = nat->controlFdR;
+                        nat->controlFdR = 0;
+                        close(fd);
                         return NULL;
                     }
                     case EVENT_LOOP_ADD:
@@ -653,9 +656,12 @@ static jboolean startEventLoopNative(JNIEnv *env, jobject object) {
 
 done:
     if (JNI_FALSE == result) {
-        if (nat->controlFdW || nat->controlFdR) {
-            shutdown(nat->controlFdW, SHUT_RDWR);
+        if (nat->controlFdW) {
+            close(nat->controlFdW);
             nat->controlFdW = 0;
+        }
+        if (nat->controlFdR) {
+            close(nat->controlFdR);
             nat->controlFdR = 0;
         }
         if (nat->me) env->DeleteGlobalRef(nat->me);
@@ -692,9 +698,10 @@ static void stopEventLoopNative(JNIEnv *env, jobject object) {
         nat->watchData = NULL;
         nat->pollDataSize = 0;
         nat->pollMemberCount = 0;
-        shutdown(nat->controlFdW, SHUT_RDWR);
+
+        int fd = nat->controlFdW;
         nat->controlFdW = 0;
-        nat->controlFdR = 0;
+        close(fd);
     }
     pthread_mutex_unlock(&(nat->thread_mutex));
 #endif // HAVE_BLUETOOTH