add reboot and shutdown to `svc power` command

a runtime shutdown will be performed first, then device will
reboot with the provided reason or power off.

Change-Id: I44cfbae19626c46147fad3bc8e91434970daa5d5
diff --git a/cmds/svc/src/com/android/commands/svc/PowerCommand.java b/cmds/svc/src/com/android/commands/svc/PowerCommand.java
index 58105fa..da8586c 100644
--- a/cmds/svc/src/com/android/commands/svc/PowerCommand.java
+++ b/cmds/svc/src/com/android/commands/svc/PowerCommand.java
@@ -36,12 +36,18 @@
         return shortHelp() + "\n"
                 + "\n"
                 + "usage: svc power stayon [true|false|usb|ac|wireless]\n"
-                + "         Set the 'keep awake while plugged in' setting.\n";
+                + "         Set the 'keep awake while plugged in' setting.\n"
+                + "       svc power reboot [reason]\n"
+                + "         Perform a runtime shutdown and reboot device with specified reason.\n"
+                + "       svc power shutdown\n"
+                + "         Perform a runtime shutdown and power off the device.\n";
     }
 
     public void run(String[] args) {
         fail: {
             if (args.length >= 2) {
+                IPowerManager pm = IPowerManager.Stub.asInterface(
+                        ServiceManager.getService(Context.POWER_SERVICE));
                 if ("stayon".equals(args[1]) && args.length == 3) {
                     int val;
                     if ("true".equals(args[2])) {
@@ -60,8 +66,6 @@
                     } else {
                         break fail;
                     }
-                    IPowerManager pm
-                            = IPowerManager.Stub.asInterface(ServiceManager.getService(Context.POWER_SERVICE));
                     try {
                         if (val != 0) {
                             // if the request is not to set it to false, wake up the screen so that
@@ -74,6 +78,26 @@
                         System.err.println("Faild to set setting: " + e);
                     }
                     return;
+                } else if ("reboot".equals(args[1])) {
+                    String mode = null;
+                    if (args.length == 3) {
+                        mode = args[2];
+                    }
+                    try {
+                        // no confirm, wait till device is rebooted
+                        pm.reboot(false, mode, true);
+                    } catch (RemoteException e) {
+                        System.err.println("Failed to reboot.");
+                    }
+                    return;
+                } else if ("shutdown".equals(args[1])) {
+                    try {
+                        // no confirm, wait till device is off
+                        pm.shutdown(false, true);
+                    } catch (RemoteException e) {
+                        System.err.println("Failed to shutdown.");
+                    }
+                    return;
                 }
             }
         }