upload android base code part6

android/system/extras/tests/bootloader/bootctl.py

@@ -0,0 +1,61 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+class Bootctl(object):
+    def __init__(self, device):
+        self.device = device
+        self.base = ["bootctl"]
+
+    def _exec(self, cmd):
+        return self.device.shell_nocheck(self.base + [cmd])
+
+    def get_number_slots(self):
+        """returns number of slots"""
+
+        return int(self._exec("get-number-slots")[1])
+
+    def get_current_slot(self):
+        """returns current slot number"""
+
+        return int(self._exec("get-current-slot")[1])
+
+    def mark_boot_successful(self):
+        """returns true on success, false on failure"""
+
+        return self._exec("mark-boot-successful")[0] == 0
+
+    def set_active_boot_slot(self, slot):
+        """returns true on success, false on failure"""
+
+        return self._exec("set-active-boot-slot " + str(slot))[0] == 0
+
+    def set_slot_as_unbootable_slot(self, slot):
+        """returns true on success, false on failure"""
+
+        return self._exec("set-slot-as-unbootable " + str(slot))[0] == 0
+
+    def is_slot_bootable(self, slot):
+        """Returns true if slot is bootable"""
+
+        return self._exec("is-slot-bootable " + str(slot))[0] == 0
+
+    def is_slot_marked_successful(self, slot):
+        """returns true on success, false on failure"""
+
+        return self._exec("is-slot-marked-successful " + str(slot))[0] == 0
+
+    def get_suffix(self, slot):
+        """returns suffix string for specified slot number"""
+
+        return self._exec("get-suffix " + str(slot))[1].strip()