def RecoverDevices(devices, blacklist, enable_usb_reset=False):
"""Attempts to recover any inoperable devices in the provided list.
Args:
devices: The list of devices to attempt to recover.
blacklist: The current device blacklist, which will be used then
reset.
"""
statuses = device_status.DeviceStatus(devices, blacklist)
should_restart_usb = set(
status['serial'] for status in statuses
if (not status['usb_status']
or status['adb_status'] in ('offline', 'missing')))
should_restart_adb = should_restart_usb.union(set(
status['serial'] for status in statuses
if status['adb_status'] == 'unauthorized'))
should_reboot_device = should_restart_usb.union(set(
status['serial'] for status in statuses
if status['blacklisted']))
logger.debug('Should restart USB for:')
for d in should_restart_usb:
logger.debug(' %s', d)
logger.debug('Should restart ADB for:')
for d in should_restart_adb:
logger.debug(' %s', d)
logger.debug('Should reboot:')
for d in should_reboot_device:
logger.debug(' %s', d)
if blacklist:
blacklist.Reset()
if should_restart_adb:
KillAllAdb()
adb_wrapper.AdbWrapper.StartServer()
for serial in should_restart_usb:
try:
# TODO(crbug.com/642194): Resetting may be causing more harm
# (specifically, kernel panics) than it does good.
if enable_usb_reset:
reset_usb.reset_android_usb(serial)
else:
logger.warning('USB reset disabled for %s (crbug.com/642914)',
serial)
except IOError:
logger.exception('Unable to reset USB for %s.', serial)
if blacklist:
blacklist.Extend([serial], reason='USB failure')
except device_errors.DeviceUnreachableError:
logger.exception('Unable to reset USB for %s.', serial)
if blacklist:
blacklist.Extend([serial], reason='offline')
device_utils.DeviceUtils.parallel(devices).pMap(
RecoverDevice, blacklist,
should_reboot=lambda device: device.serial in should_reboot_device)
def RecoverDevices(devices, blacklist):
"""Attempts to recover any inoperable devices in the provided list.
Args:
devices: The list of devices to attempt to recover.
blacklist: The current device blacklist, which will be used then
reset.
"""
statuses = device_status.DeviceStatus(devices, blacklist)
should_restart_usb = set(
status['serial'] for status in statuses
if (not status['usb_status']
or status['adb_status'] in ('offline', 'missing')))
should_restart_adb = should_restart_usb.union(set(
status['serial'] for status in statuses
if status['adb_status'] == 'unauthorized'))
should_reboot_device = should_restart_adb.union(set(
status['serial'] for status in statuses
if status['blacklisted']))
logging.debug('Should restart USB for:')
for d in should_restart_usb:
logging.debug(' %s', d)
logging.debug('Should restart ADB for:')
for d in should_restart_adb:
logging.debug(' %s', d)
logging.debug('Should reboot:')
for d in should_reboot_device:
logging.debug(' %s', d)
if blacklist:
blacklist.Reset()
if should_restart_adb:
KillAllAdb()
for serial in should_restart_usb:
try:
reset_usb.reset_android_usb(serial)
except IOError:
logging.exception('Unable to reset USB for %s.', serial)
if blacklist:
blacklist.Extend([serial], reason='USB failure')
except device_errors.DeviceUnreachableError:
logging.exception('Unable to reset USB for %s.', serial)
if blacklist:
blacklist.Extend([serial], reason='offline')
device_utils.DeviceUtils.parallel(devices).pMap(
RecoverDevice, blacklist,
should_reboot=lambda device: device in should_reboot_device)
