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# Contains all of the metric reporting functions for the Canary Wrappers
# Needs to be installed prior to running
import psutil
cache_cpu_psutil_process = None
def get_metric_total_cpu_usage(psutil_process : psutil.Process):
global cache_cpu_psutil_process
try:
if (psutil_process == None):
print ("ERROR - No psutil.process passed! Cannot gather metric!", flush=True)
return None
# We always need to skip the first CPU poll
if (cache_cpu_psutil_process != psutil_process):
psutil.cpu_percent(interval=None)
cache_cpu_psutil_process = psutil_process
return None
return psutil.cpu_percent(interval=None)
except Exception as e:
print ("ERROR - exception occurred gathering metrics!")
print (f"Exception: {repr(e)}", flush=True)
return None
# Note: This value is in BYTES.
def get_metric_total_memory_usage_value(psutil_process : psutil.Process):
try:
if (psutil_process == None):
print ("ERROR - No psutil.process passed! Cannot gather metric!", flush=True)
return None
return psutil.virtual_memory()[3]
except Exception as e:
print ("ERROR - exception occurred gathering metrics!")
print (f"Exception: {repr(e)}", flush=True)
return None
def get_metric_total_memory_usage_percent(psutil_process : psutil.Process):
try:
if (psutil_process == None):
print ("ERROR - No psutil.process passed! Cannot gather metric!", flush=True)
return None
return psutil.virtual_memory()[2]
except Exception as e:
print ("ERROR - exception occurred gathering metrics!")
print (f"Exception: {repr(e)}", flush=True)
return None
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