1 files changed, 154 insertions, 0 deletions
diff --git a/src/android/bluetooth/src/org/qtproject/qt/android/bluetooth/QtBluetoothSocketServer.java b/src/android/bluetooth/src/org/qtproject/qt/android/bluetooth/QtBluetoothSocketServer.java
new file mode 100644
index 00000000..cc78c5d7
--- /dev/null
+++ b/src/android/bluetooth/src/org/qtproject/qt/android/bluetooth/QtBluetoothSocketServer.java
@@ -0,0 +1,154 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+package org.qtproject.qt.android.bluetooth;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothServerSocket;
+import android.bluetooth.BluetoothManager;
+import android.bluetooth.BluetoothSocket;
+import android.content.Context;
+import android.util.Log;
+import java.io.IOException;
+import java.util.UUID;
+
+@SuppressWarnings("WeakerAccess")
+public class QtBluetoothSocketServer extends Thread
+{
+
+    /* Pointer to the Qt object that "owns" the Java object */
+    @SuppressWarnings({"WeakerAccess", "CanBeFinal"})
+    long qtObject = 0;
+    @SuppressWarnings({"WeakerAccess", "CanBeFinal"})
+    public boolean logEnabled = false;
+    @SuppressWarnings("WeakerAccess")
+    static Context qtContext = null;
+
+    private static final String TAG = "QtBluetooth";
+    private boolean m_isSecure = false;
+    private UUID m_uuid;
+    private String m_serviceName;
+    private BluetoothServerSocket m_serverSocket = null;
+
+    //error codes
+    private static final int QT_NO_BLUETOOTH_SUPPORTED = 0;
+    private static final int QT_LISTEN_FAILED = 1;
+    private static final int QT_ACCEPT_FAILED = 2;
+
+    public QtBluetoothSocketServer(Context context)
+    {
+        qtContext = context;
+        setName("QtSocketServerThread");
+    }
+
+    public void setServiceDetails(String uuid, String serviceName, boolean isSecure)
+    {
+        m_uuid = UUID.fromString(uuid);
+        m_serviceName = serviceName;
+        m_isSecure = isSecure;
+
+    }
+
+    public void run()
+    {
+        BluetoothManager manager =
+            (BluetoothManager)qtContext.getSystemService(Context.BLUETOOTH_SERVICE);
+
+        if (manager == null) {
+            errorOccurred(qtObject, QT_NO_BLUETOOTH_SUPPORTED);
+            return;
+        }
+
+        BluetoothAdapter adapter = manager.getAdapter();
+        if (adapter == null) {
+            errorOccurred(qtObject, QT_NO_BLUETOOTH_SUPPORTED);
+            return;
+        }
+
+        try {
+            if (m_isSecure) {
+                m_serverSocket = adapter.listenUsingRfcommWithServiceRecord(m_serviceName, m_uuid);
+                if (logEnabled)
+                    Log.d(TAG, "Using secure socket listener");
+            } else {
+                m_serverSocket = adapter.listenUsingInsecureRfcommWithServiceRecord(m_serviceName, m_uuid);
+                if (logEnabled)
+                    Log.d(TAG, "Using insecure socket listener");
+            }
+        } catch (IOException ex) {
+            if (logEnabled)
+                Log.d(TAG, "Server socket listen() failed:" + ex.toString());
+            ex.printStackTrace();
+            errorOccurred(qtObject, QT_LISTEN_FAILED);
+            return;
+        }
+
+        if (isInterrupted()) // close() may have been called
+            return;
+
+        BluetoothSocket s;
+        if (m_serverSocket != null) {
+            try {
+                while (!isInterrupted()) {
+                    //this blocks until we see incoming connection
+                    //or close() is called
+                    if (logEnabled)
+                        Log.d(TAG, "Waiting for new incoming socket");
+                    s = m_serverSocket.accept();
+
+                    if (logEnabled)
+                        Log.d(TAG, "New socket accepted");
+                    newSocket(qtObject, s);
+                }
+            } catch (IOException ex) {
+                if (logEnabled)
+                    Log.d(TAG, "Server socket accept() failed:" + ex.toString());
+                ex.printStackTrace();
+                errorOccurred(qtObject, QT_ACCEPT_FAILED);
+            }
+        }
+
+        Log.d(TAG, "Leaving server socket thread.");
+    }
+
+    // This function closes the socket server
+    //
+    // A note on threading behavior
+    // 1. This function is called from Qt thread which is different from the Java thread (run())
+    // 2. The caller of this function expects the Java thread to be finished upon return
+    //
+    // First we mark the Java thread as interrupted, then call close() on the
+    // listening socket if it had been created, and lastly wait for the thread to finish.
+    // The close() method of the socket is intended to be used to abort the accept() from
+    // another thread, as per the accept() documentation.
+    //
+    // If the Java thread was in the middle of creating a socket with the non-blocking
+    // listen* call, the run() will notice after the returning from the listen* that it has
+    // been interrupted and returns early from the run().
+    //
+    // If the Java thread was in the middle of the blocking accept() call, it will get
+    // interrupated by the close() call on the socket. After returning the run() will
+    // notice it has been interrupted and return from the run()
+    public void close()
+    {
+        if (!isAlive())
+            return;
+
+        try {
+            //ensure closing of thread if we are not currently blocking on accept()
+            interrupt();
+
+            //interrupts accept() call above
+            if (m_serverSocket != null)
+                m_serverSocket.close();
+            // Wait for the thread to finish
+            join(20); // Maximum wait in ms, typically takes < 1ms
+        } catch (Exception ex) {
+            Log.d(TAG, "Closing server socket close() failed:" + ex.toString());
+            ex.printStackTrace();
+        }
+    }
+
+    public static native void errorOccurred(long qtObject, int errorCode);
+    public static native void newSocket(long qtObject, BluetoothSocket socket);
+}