tahoe-lafs/src/allmydata/history.py
2021-02-13 15:48:42 -05:00

115 lines
4.2 KiB
Python

"""Ported to Python 3.
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
from future.utils import PY2
if PY2:
from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, bytes, dict, list, object, range, str, max, min # noqa: F401
import weakref
class History(object):
"""Keep track of recent operations, for a status display."""
name = "history"
MAX_DOWNLOAD_STATUSES = 10
MAX_UPLOAD_STATUSES = 10
MAX_MAPUPDATE_STATUSES = 20
MAX_PUBLISH_STATUSES = 20
MAX_RETRIEVE_STATUSES = 20
def __init__(self, stats_provider=None):
self.stats_provider = stats_provider
self.all_downloads_statuses = weakref.WeakKeyDictionary()
self.recent_download_statuses = []
self.all_upload_statuses = weakref.WeakKeyDictionary()
self.recent_upload_statuses = []
self.all_mapupdate_status = weakref.WeakKeyDictionary()
self.recent_mapupdate_status = []
self.all_publish_status = weakref.WeakKeyDictionary()
self.recent_publish_status = []
self.all_retrieve_status = weakref.WeakKeyDictionary()
self.recent_retrieve_status = []
self.all_helper_upload_statuses = weakref.WeakKeyDictionary()
self.recent_helper_upload_statuses = []
def add_download(self, download_status):
self.all_downloads_statuses[download_status] = None
self.recent_download_statuses.append(download_status)
while len(self.recent_download_statuses) > self.MAX_DOWNLOAD_STATUSES:
self.recent_download_statuses.pop(0)
def list_all_download_statuses(self):
for ds in self.all_downloads_statuses:
yield ds
def add_upload(self, upload_status):
self.all_upload_statuses[upload_status] = None
self.recent_upload_statuses.append(upload_status)
while len(self.recent_upload_statuses) > self.MAX_UPLOAD_STATUSES:
self.recent_upload_statuses.pop(0)
def list_all_upload_statuses(self):
for us in self.all_upload_statuses:
yield us
def notify_mapupdate(self, p):
self.all_mapupdate_status[p] = None
self.recent_mapupdate_status.append(p)
while len(self.recent_mapupdate_status) > self.MAX_MAPUPDATE_STATUSES:
self.recent_mapupdate_status.pop(0)
def notify_publish(self, p, size):
self.all_publish_status[p] = None
self.recent_publish_status.append(p)
if self.stats_provider:
self.stats_provider.count('mutable.files_published', 1)
# We must be told bytes_published as an argument, since the
# publish_status does not yet know how much data it will be asked
# to send. When we move to MDMF we'll need to find a better way
# to handle this.
self.stats_provider.count('mutable.bytes_published', size)
while len(self.recent_publish_status) > self.MAX_PUBLISH_STATUSES:
self.recent_publish_status.pop(0)
def notify_retrieve(self, r):
self.all_retrieve_status[r] = None
self.recent_retrieve_status.append(r)
if self.stats_provider:
self.stats_provider.count('mutable.files_retrieved', 1)
self.stats_provider.count('mutable.bytes_retrieved', r.get_size())
while len(self.recent_retrieve_status) > self.MAX_RETRIEVE_STATUSES:
self.recent_retrieve_status.pop(0)
def list_all_mapupdate_statuses(self):
for s in self.all_mapupdate_status:
yield s
def list_all_publish_statuses(self):
for s in self.all_publish_status:
yield s
def list_all_retrieve_statuses(self):
for s in self.all_retrieve_status:
yield s
def notify_helper_upload(self, s):
self.all_helper_upload_statuses[s] = None
self.recent_helper_upload_statuses.append(s)
while len(self.recent_helper_upload_statuses) > self.MAX_UPLOAD_STATUSES:
self.recent_helper_upload_statuses.pop(0)
def list_all_helper_statuses(self):
for s in self.all_helper_upload_statuses:
yield s