def sysctl_kernel(key, value=None):
"""(Very) partial implementation of sysctl, for kernel params"""
if value:
# write
utils.write_one_line("/proc/sys/kernel/%s" % key, str(value))
else:
# read
out = utils.read_one_line("/proc/sys/kernel/%s" % key)
return int(re.search(r"\d+", out).group(0))
def sysctl_kernel(key, value=None):
"""(Very) partial implementation of sysctl, for kernel params"""
if value is not None:
# write
utils.write_one_line('/proc/sys/kernel/%s' % key, str(value))
else:
# read
out = utils.read_one_line('/proc/sys/kernel/%s' % key)
return int(re.search(r'\d+', out).group(0))
def _set_kernel_fw_update(self, disable=0):
"""Disable the FW update driver.
@param disable: 1 for disable, 0 for enable.
"""
utils.write_one_line(self.FW_UP_DISABLE_PATH, disable)
if not disable:
# Allow kernel driver time quiesce
time.sleep(2)
def sysctl(key, value=None):
"""Generic implementation of sysctl, to read and write.
@param key: A location under /proc/sys
@param value: If not None, a value to write into the sysctl.
@return The single-line sysctl value as a string.
"""
path = '/proc/sys/%s' % key
if value is not None:
utils.write_one_line(path, str(value))
return utils.read_one_line(path)
def sysctl(key, value=None):
"""Generic implementation of sysctl, to read and write.
@param key: A location under /proc/sys
@param value: If not None, a value to write into the sysctl.
@return The single-line sysctl value as a string.
"""
path = '/proc/sys/%s' % key
if value is not None:
utils.write_one_line(path, str(value))
return utils.read_one_line(path)
def initialize(self):
cpufreq_path = '/sys/devices/system/cpu/cpu*/cpufreq'
dirs = glob.glob(cpufreq_path)
if not dirs:
raise error.TestFail('cpufreq not supported')
self._cpufreq_dirs = dirs
self._cpus = [cpufreq(dirname) for dirname in dirs]
for cpu in self._cpus:
cpu.save_state()
# Store the setting if the system has CPUQuiet feature
if os.path.exists(SYSFS_CPUQUIET_ENABLE):
self.is_cpuquiet_enabled = utils.read_file(SYSFS_CPUQUIET_ENABLE)
utils.write_one_line(SYSFS_CPUQUIET_ENABLE, '0')
def _test_check_product_id(self):
"""
metrics_daemon should set the product id when it is specified.
The product id can be set through the GOOGLE_METRICS_PRODUCT_ID file in
/etc/os-release.d/.
"""
# The product id must be an integer, declared in the upstream UMA
# backend protobuf.
EXPECTED_PRODUCT_ID = 3
sys.path.append(self.srcdir)
from chrome_user_metrics_extension_pb2 import ChromeUserMetricsExtension
self._create_one_sample()
self.server = FakeServer()
self.server.Start()
osreleased_path = os.path.join(self._tempdir.name, 'etc',
'os-release.d')
file_utils.make_leaf_dir(osreleased_path)
utils.write_one_line(os.path.join(osreleased_path,
'GOOGLE_METRICS_PRODUCT_ID'),
str(EXPECTED_PRODUCT_ID))
utils.system_output('metrics_daemon -uploader_test '
'-server="%s" '
'-config_root="%s"' % (SERVER_ADDRESS,
self._tempdir.name),
retain_output=True)
self.server.Stop()
if len(self.server.messages) != 1:
raise error.TestFail('should have received 1 message. Received: '
+ str(len(self.server.messages)))
proto = ChromeUserMetricsExtension.FromString(self.server.messages[0])
logging.debug('Proto received is: ' + str(proto))
if proto.product != EXPECTED_PRODUCT_ID:
raise error.TestFail('Product id should be set to 3. Was: '
+ str(proto.product))
def get_write_one_line_output(self, content):
test_file = mock.SaveDataAfterCloseStringIO()
utils.open.expect_call("filename", "w").and_return(test_file)
utils.write_one_line("filename", content)
self.god.check_playback()
return test_file.final_data
def set_power_state(state):
"""
Set the system power state to 'state'.
"""
utils.write_one_line('/sys/power/state', state)
def set_wake_alarm(alarm_time):
"""
Set the hardware RTC-based wake alarm to 'alarm_time'.
"""
utils.write_one_line('/sys/class/rtc/rtc0/wakealarm', str(alarm_time))
def get_write_one_line_output(self, content):
test_file = mock.SaveDataAfterCloseStringIO()
utils.open.expect_call("filename", "w").and_return(test_file)
utils.write_one_line("filename", content)
self.god.check_playback()
return test_file.final_data
def set_power_state(state):
"""
Set the system power state to 'state'.
"""
utils.write_one_line('/sys/power/state', state)
def set_wake_alarm(alarm_time):
"""
Set the hardware RTC-based wake alarm to 'alarm_time'.
"""
utils.write_one_line('/sys/class/rtc/rtc0/wakealarm', str(alarm_time))
def initialize(self):
# Store the setting if the system has CPUQuiet feature
if os.path.exists(SYSFS_CPUQUIET_ENABLE):
self.is_cpuquiet_enabled = utils.read_file(SYSFS_CPUQUIET_ENABLE)
utils.write_one_line(SYSFS_CPUQUIET_ENABLE, '0')