Add support for wait-on-handlers command.

Add support for wait on handlers adb telecom command.  Used in CTS
tests to ensure work is completed once all Telecom handlers have finished
their current work.

Test: CTS, Manual
Bug: 34159263
Change-Id: I14acc0a04710b445c172629c2327813ee73a5a55

cmds/telecom/src/com/android/commands/telecom/Telecom.java

@@ -20,7 +20,6 @@ import android.content.ComponentName;
 import android.content.Context;
 import android.net.Uri;
 import android.os.IUserManager;
-import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
@@ -51,6 +50,7 @@ public final class Telecom extends BaseCommand {
     private static final String COMMAND_SET_DEFAULT_DIALER = "set-default-dialer";
     private static final String COMMAND_GET_DEFAULT_DIALER = "get-default-dialer";
     private static final String COMMAND_GET_SYSTEM_DIALER = "get-system-dialer";
+    private static final String COMMAND_WAIT_ON_HANDLERS = "wait-on-handlers";
 
     private ComponentName mComponent;
     private String mAccountId;
@@ -69,6 +69,7 @@ public final class Telecom extends BaseCommand {
                 "usage: telecom set-default-dialer <PACKAGE>\n" +
                 "usage: telecom get-default-dialer\n" +
                 "usage: telecom get-system-dialer\n" +
+                "usage: telecom wait-on-handlers\n" +
                 "\n" +
                 "telecom set-phone-account-enabled: Enables the given phone account, if it has \n" +
                 " already been registered with Telecom.\n" +
@@ -80,7 +81,9 @@ public final class Telecom extends BaseCommand {
                 "\n" +
                 "telecom get-default-dialer: Displays the current default dialer. \n" +
                 "\n" +
-                "telecom get-system-dialer: Displays the current system dialer. \n"
+                "telecom get-system-dialer: Displays the current system dialer. \n" +
+                "\n" +
+                "telecom wait-on-handlers: Wait until all handlers finish their work. \n"
                 );
     }
 
@@ -125,6 +128,9 @@ public final class Telecom extends BaseCommand {
             case COMMAND_GET_SYSTEM_DIALER:
                 runGetSystemDialer();
                 break;
+            case COMMAND_WAIT_ON_HANDLERS:
+                runWaitOnHandler();
+                break;
             default:
                 throw new IllegalArgumentException ("unknown command '" + command + "'");
         }
@@ -192,6 +198,10 @@ public final class Telecom extends BaseCommand {
         System.out.println(mTelecomService.getSystemDialerPackage());
     }
 
+    private void runWaitOnHandler() throws RemoteException {
+
+    }
+
     private PhoneAccountHandle getPhoneAccountHandleFromArgs() throws RemoteException{
         final ComponentName component = parseComponentName(nextArgRequired());
         final String accountId = nextArgRequired();

telecomm/java/com/android/internal/telecom/ITelecomService.aidl

@@ -259,4 +259,9 @@ interface ITelecomService {
      * @see TelecomServiceImpl#isOutgoingCallPermitted
      */
     boolean isOutgoingCallPermitted(in PhoneAccountHandle phoneAccountHandle);
+
+    /**
+     * @see TelecomServiceImpl#waitOnHandler
+     */
+    void waitOnHandlers();
 }