def update_task_stats(self):
t0 = time.time()
self.duration = t0 - self._timestamp
self._timestamp = t0
self._request.send(TaskStatHelper.connection)
try:
reply = GeNlMessage.recv(TaskStatHelper.connection)
except OSError as e:
if e.errno == errno.ESRCH:
# OSError: Netlink error: No such process (3)
return
raise
for attr_type, attr_value in reply.attrs.items():
#if attr_type == TASKSTATS_TYPE_AGGR_TGID:
if attr_type == TASKSTATS_TYPE_AGGR_PID:
reply = attr_value.nested()
break
else:
return
taskstats_data = reply[TASKSTATS_TYPE_STATS].data
if len(taskstats_data) < 272:
# Short reply
return
taskstats_version = struct.unpack('H', taskstats_data[:2])[0]
assert taskstats_version >= 4
self._update_stats(Stats(taskstats_data))
return self._stats_delta
def update_task_stats(self):
t0 = time.time()
self.duration = t0 - self._timestamp
self._timestamp = t0
self._request.send(TaskStatHelper.connection)
try:
reply = GeNlMessage.recv(TaskStatHelper.connection)
except OSError as e:
if e.errno == errno.ESRCH:
# OSError: Netlink error: No such process (3)
return
raise
for attr_type, attr_value in reply.attrs.items():
#if attr_type == TASKSTATS_TYPE_AGGR_TGID:
if attr_type == TASKSTATS_TYPE_AGGR_PID:
reply = attr_value.nested()
break
else:
return
taskstats_data = reply[TASKSTATS_TYPE_STATS].data
if len(taskstats_data) < 272:
# Short reply
return
taskstats_version = struct.unpack('H', taskstats_data[:2])[0]
assert taskstats_version >= 4
self._update_stats(Stats(taskstats_data))
return self._stats_delta
def get_single_task_stats(self, thread):
thread.task_stats_request.send(self.connection)
try:
reply = GeNlMessage.recv(self.connection)
except OSError as e:
if e.errno == errno.ESRCH:
# OSError: Netlink error: No such process (3)
return
raise
for attr_type, attr_value in reply.attrs.items():
if attr_type == TASKSTATS_TYPE_AGGR_PID:
reply = attr_value.nested()
break
else:
return
taskstats_data = reply[TASKSTATS_TYPE_STATS].data
if len(taskstats_data) < 272:
# Short reply
return
taskstats_version = struct.unpack('H', taskstats_data[:2])[0]
assert taskstats_version >= 4
return Stats(taskstats_data)
def get_single_task_stats(self, thread):
thread.task_stats_request.send(self.connection)
try:
reply = GeNlMessage.recv(self.connection)
except OSError as e:
if e.errno == errno.ESRCH:
# OSError: Netlink error: No such process (3)
return
raise
for attr_type, attr_value in reply.attrs.items():
if attr_type == TASKSTATS_TYPE_AGGR_PID:
reply = attr_value.nested()
break
else:
return
taskstats_data = reply[TASKSTATS_TYPE_STATS].data
if len(taskstats_data) < 272:
# Short reply
return
taskstats_version = struct.unpack('H', taskstats_data[:2])[0]
assert taskstats_version >= 4
return Stats(taskstats_data)