1# Copyright (C) 2016 The Android Open Source Project 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15class Bootctl(object): 16 def __init__(self, device): 17 self.device = device 18 self.base = ["bootctl"] 19 20 def _exec(self, cmd): 21 return self.device.shell_nocheck(self.base + [cmd]) 22 23 def get_number_slots(self): 24 """returns number of slots""" 25 26 return int(self._exec("get-number-slots")[1]) 27 28 def get_current_slot(self): 29 """returns current slot number""" 30 31 return int(self._exec("get-current-slot")[1]) 32 33 def mark_boot_successful(self): 34 """returns true on success, false on failure""" 35 36 return self._exec("mark-boot-successful")[0] == 0 37 38 def set_active_boot_slot(self, slot): 39 """returns true on success, false on failure""" 40 41 return self._exec("set-active-boot-slot " + str(slot))[0] == 0 42 43 def set_slot_as_unbootable_slot(self, slot): 44 """returns true on success, false on failure""" 45 46 return self._exec("set-slot-as-unbootable " + str(slot))[0] == 0 47 48 def is_slot_bootable(self, slot): 49 """Returns true if slot is bootable""" 50 51 return self._exec("is-slot-bootable " + str(slot))[0] == 0 52 53 def is_slot_marked_successful(self, slot): 54 """returns true on success, false on failure""" 55 56 return self._exec("is-slot-marked-successful " + str(slot))[0] == 0 57 58 def get_suffix(self, slot): 59 """returns suffix string for specified slot number""" 60 61 return self._exec("get-suffix " + str(slot))[1].strip() 62