def monitor_disp(self):
os.putenv('DISPLAY', ':0.0')
os.environ['DISPLAY'] = ':0.0'
count = 0
stdout = ''
while self.stop is False or not shutdown_event.is_set():
xset = subprocess.Popen(['xset', 'q'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
try:
stdout = xset.communicate(timeout=15) # [0]
except subprocess.TimeoutExpired as e:
xset.kill()
eprint(str(e))
if xset.returncode == 0:
sed = subprocess.Popen(['sed', 'ne', "'s/^[ ]*Monitor is //p'"], stdout=subprocess.PIPE,
stdin=subprocess.PIPE, stderr=subprocess.STDOUT)
try:
stdout = sed.communicate(input=stdout[0], timeout=15)[0]
except subprocess.TimeoutExpired as e:
xset.kill()
eprint(str(e))
else:
if stdout == 'Off':
count += 1
else:
count = 0
if count * 2 >= self.monitor_time:
self.do_action()
return
time.sleep(2)
def monitor_net(self):
transfer_rate = deque(maxlen=1)
event = threading.Event()
t = threading.Thread(target=network_usage,
kwargs={'rate': transfer_rate, 'interval': 1, 'e': event})
t.daemon = True
t.start()
n_usage = list()
while self.stop is False or not shutdown_event.is_set():
time.sleep(1)
try:
upload = transfer_rate[-1][0]
download = transfer_rate[-1][1]
except IndexError:
...
else:
n_usage.append(upload + download)
if len(n_usage) >= self.monitor_time:
n_usage.pop(0)
if len(n_usage) == self.monitor_time:
avg = sum(n_usage) / len(n_usage)
if avg < self.monitor_value:
event.set()
self.do_action()
return
def monitor_cpu(self):
while self.stop is False or not shutdown_event.is_set():
if psutil.cpu_percent(interval=self.monitor_time) <= self.monitor_value:
self.do_action()
return
time.sleep(1)
def monitor_proc(self):
while self.stop is False or not shutdown_event.is_set():
if psutil.pid_exists(self.monitor_value):
process = psutil.Process(self.monitor_value)
stat = process.status()
if stat is psutil.STATUS_DEAD:
self.do_action()
return
else:
self.do_action()
return
time.sleep(5)
def monitor_audio(self):
count = 0
while self.stop is False or not shutdown_event.is_set():
out = subprocess.call(['grep', 'state:'] + glob.glob('/proc/asound/card*/pcm*/sub*/status'))
if out == 1: # grep return 0 when 'state:' is found; 1 when not found
count += 1
elif out == 0:
count = 0
if count == self.monitor_time:
self.do_action()
return
time.sleep(1)
def monitor_ram(self):
l_usage = list()
while self.stop is False or not shutdown_event.is_set():
l_usage.append(psutil.virtual_memory().percent)
if len(l_usage) > self.monitor_time:
l_usage = l_usage.pop(0)
if len(l_usage) == self.monitor_time:
avg = sum(l_usage) / len(l_usage)
if avg < self.monitor_value:
self.do_action()
return
time.sleep(1)
def network_usage(rate: deque, interval: int, e: threading.Event):
t0 = time.time()
counter = psutil.net_io_counters()
tot = (counter.bytes_sent, counter.bytes_recv)
while not e.is_set() or not shutdown_event.is_set():
last_tot = tot
time.sleep(interval)
counter = psutil.net_io_counters()
t1 = time.time()
tot = (counter.bytes_sent, counter.bytes_recv)
ul, dl = [(now - last) / (t1 - t0) / 1000.0
for now, last in zip(tot, last_tot)]
rate.append((ul, dl))
t0 = time.time()