altosui: Ensure serial device is closed after eeprom download finishes

As this code is all event-driven, track which events will trigger
further work and block closing the device in those specific cases,
ensuring that all other code paths end up closing the device.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altosui/AltosEepromManage.java b/altosui/AltosEepromManage.java
index c7efe478e5f652cf5d2d9a678fcb23cfe6840a47..d10f79549b5bf242bac0fdfed6e13a461a12766e 100644 (file)
--- a/altosui/AltosEepromManage.java
+++ b/altosui/AltosEepromManage.java
@@ -44,7 +44,7 @@ public class AltosEepromManage implements ActionListener {
 
        public void finish() {
                if (serial_line != null) {
-                       serial_line.flush_output();
+                       serial_line.flush_input();
                        serial_line.close();
                        serial_line = null;
                }
@@ -67,14 +67,15 @@ public class AltosEepromManage implements ActionListener {
        public void actionPerformed(ActionEvent e) {
                String  cmd = e.getActionCommand();
                boolean success = e.getID() != 0;
+               boolean running = false;
 
                System.out.printf("Eeprom manager action %s %d\n", cmd, e.getID());
                if (cmd.equals("download")) {
                        if (success) {
-                               if (any_delete)
+                               if (any_delete) {
                                        delete.start();
-                               else
-                                       finish();
+                                       running = true;
+                               }
                        }
                } else if (cmd.equals("delete")) {
                        if (success) {
@@ -84,12 +85,15 @@ public class AltosEepromManage implements ActionListener {
                                                              serial_line.device.toShortString(),
                                                              JOptionPane.INFORMATION_MESSAGE);
                        }
-                       finish();
                }
+               if (!running)
+                       finish();
        }
 
        public AltosEepromManage(JFrame given_frame) {
 
+               boolean running = false;
+
                frame = given_frame;
                device = AltosDeviceDialog.show(frame, AltosDevice.product_any);
 
@@ -139,15 +143,15 @@ public class AltosEepromManage implements ActionListener {
                                                 * Start flight log download
                                                 */
 
-                                               if (any_download)
+                                               if (any_download) {
                                                        download.start();
-                                               else if (any_delete)
+                                                       running = true;
+                                               }
+                                               else if (any_delete) {
                                                        delete.start();
-                                               else
-                                                       finish();
+                                                       running = true;
+                                               }
                                        }
-                               } else {
-                                       finish();
                                }
                        } catch (FileNotFoundException ee) {
                                JOptionPane.showMessageDialog(frame,
@@ -166,17 +170,16 @@ public class AltosEepromManage implements ActionListener {
                                                              device.toShortString(),
                                                              ee.getLocalizedMessage(),
                                                              JOptionPane.ERROR_MESSAGE);
-                               finish();
                        } catch (TimeoutException te) {
                                JOptionPane.showMessageDialog(frame,
                                                              String.format("Communications failed with \"%s\"",
                                                                            device.toShortString()),
                                                              "Cannot open target device",
                                                              JOptionPane.ERROR_MESSAGE);
-                               finish();
                        } catch (InterruptedException ie) {
-                               finish();
                        }
+                       if (!running)
+                               finish();
                }
        }
 }