97 lines
3.1 KiB
Python
Executable File
97 lines
3.1 KiB
Python
Executable File
"""
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Onionr - Private P2P Communication.
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Keep track of how much disk space we're using
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"""
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from pathlib import Path
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from threading import Thread
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from watchdog.observers import Observer
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from watchdog.events import FileSystemEventHandler
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import config
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from filepaths import usage_file
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"""
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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config.reload()
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def _read_data_file(f) -> int:
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amount = 0
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try:
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with open(f, 'r') as f:
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amount = int(f.read())
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except FileNotFoundError:
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pass
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except ValueError:
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pass # Possibly happens when the file is empty
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return amount
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class StorageCounter:
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def __init__(self):
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self.data_file = usage_file
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self.amount: int = None
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Path(self.data_file).touch()
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def auto_refresher():
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class Refresher(FileSystemEventHandler):
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@staticmethod
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def on_modified(event):
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self.amount = _read_data_file(self.data_file)
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observer = Observer()
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observer.schedule(Refresher(), usage_file)
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observer.start()
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while observer.is_alive():
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# call import func with timeout
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observer.join(120)
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Thread(target=auto_refresher, daemon=True).start()
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self.amount = _read_data_file(self.data_file)
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def is_full(self) -> bool:
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"""Returns if the allocated disk space is full (this is Onionr config,
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not true FS capacity)"""
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ret_data = False
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if config.get('allocations.disk', 1073741824) <= (self.amount + 1000):
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ret_data = True
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return ret_data
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def _update(self, data):
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with open(self.data_file, 'w') as data_file:
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data_file.write(str(data))
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def get_percent(self) -> int:
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"""Return percent (decimal/float) of disk space we're using"""
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amount = self.amount
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return round(amount / config.get('allocations.disk', 2000000000), 2)
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def add_bytes(self, amount) -> int:
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"""Record that we are now using more disk space,
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unless doing so would exceed configured max"""
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new_amount = amount + self.amount
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ret_data = new_amount
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if new_amount > config.get('allocations.disk', 2000000000):
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ret_data = False
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else:
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self._update(new_amount)
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return ret_data
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def remove_bytes(self, amount) -> int:
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"""Record that we are now using less disk space"""
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new_amount = self.amount - amount
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self._update(new_amount)
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return new_amount
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