disk_read.py

#     Copyright (C) 2023  Coretex LLC
 
#     This file is part of Coretex.ai
 
#     This program is free software: you can redistribute it and/or modify
#     it under the terms of the GNU Affero General Public License as
#     published by the Free Software Foundation, either version 3 of the
#     License, or (at your option) any later version.
 
#     This program is distributed in the hope that it will be useful,
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#     GNU Affero General Public License for more details.
 
#     You should have received a copy of the GNU Affero General Public License
#     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
from ..metric import Metric
from .....statistics import getDiskRead
 
 
class MetricDiskRead(Metric):
 
    def __init__(self) -> None:
        self.previousValue = getDiskRead()
 
    def extract(self) -> float:
        currentValue = getDiskRead()
        diff = currentValue - self.previousValue
 
        self.previousValue = currentValue
        return diff