Onionr/src/communicator/uploadqueue/__init__.py
2020-08-10 01:03:32 -05:00

74 lines
2.3 KiB
Python

"""Onionr - Private P2P Communication.
Class to remember blocks that need to be uploaded
and not shared on startup/shutdown
"""
import atexit
import os
from typing import TYPE_CHECKING
import deadsimplekv
import filepaths
from onionrutils import localcommand
if TYPE_CHECKING:
from communicator import OnionrCommunicatorDaemon
from deadsimplekv import DeadSimpleKV
"""
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
UPLOAD_MEMORY_FILE = filepaths.upload_list
def _add_to_hidden_blocks(cache):
for bl in cache:
localcommand.local_command('waitforshare/' + bl, post=True)
class UploadQueue:
"""Saves and loads block upload info from json file."""
def __init__(self, communicator: 'OnionrCommunicatorDaemon'):
"""Start the UploadQueue object, loading left over uploads into queue.
register save shutdown function
"""
self.communicator = communicator
cache: deadsimplekv.DeadSimpleKV = deadsimplekv.DeadSimpleKV(
UPLOAD_MEMORY_FILE)
self.kv: "DeadSimpleKV" = \
communicator.shared_state.get_by_string("DeadSimpleKV")
self.store_obj = cache
cache = cache.get('uploads')
if cache is None:
cache = []
_add_to_hidden_blocks(cache)
self.kv.get('blocksToUpload').extend(cache)
atexit.register(self.save)
def save(self):
"""Save to disk on shutdown or if called manually."""
bl: deadsimplekv.DeadSimpleKV = self.kv.get('blocksToUpload')
if len(bl) == 0:
try:
os.remove(UPLOAD_MEMORY_FILE)
except FileNotFoundError:
pass
else:
self.store_obj.put('uploads', bl)
self.store_obj.flush()