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move transfers into sqlitedict

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This commit is contained in:
j 2016-02-11 21:25:41 +05:30
parent 9a9185d3d5
commit 9d7a553b95
6 changed files with 69 additions and 45 deletions
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31
oml/downloads.py
View file

@ -1,17 +1,17 @@
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
import os
from threading import Thread
import time
from sqlitedict import SqliteDict
import db
import state
import settings
import update
from websocket import trigger_event
import logging
logger = logging.getLogger(__name__)
@ -21,6 +21,8 @@ class Downloads(Thread):
Thread.__init__(self)
self.daemon = True
self.start()
self._dbpath = os.path.join(settings.data_path, 'transfers.db')
self.transfers = SqliteDict(self._dbpath, tablename='transfers', autocommit=False)
def download_updates(self):
now = int(time.mktime(time.gmtime()))
@ -32,18 +34,19 @@ class Downloads(Thread):
def download_next(self):
import item.models
self.download_updates()
for t in item.models.Transfer.query.filter(
item.models.Transfer.added!=None,
item.models.Transfer.progress<1).order_by(item.models.Transfer.added):
downloads = list(self.transfers.items())
downloads.sort(key=lambda t: t[1].get('added'))
for itemid, t in downloads:
if state.shutdown:
return False
for u in t.item.users:
if state.shutdown:
return False
if state.nodes.is_online(u.id):
logger.debug('DOWNLOAD %s %s', t.item, u)
r = state.nodes.download(u.id, t.item)
return True
if t.get('added') and t.get('progress', -1) < 1:
i = item.models.Item.get(itemid)
for u in i.users:
if state.shutdown:
return False
if state.nodes.is_online(u.id):
logger.debug('DOWNLOAD %s %s', i, u)
r = state.nodes.download(u.id, i)
return False
def run(self):
@ -55,6 +58,8 @@ class Downloads(Thread):
self.wait(10)
def join(self):
self.transfers.commit()
self.transfers.close()
return Thread.join(self)
def wait_online(self):

6
oml/item/api.py
View file

@ -271,11 +271,9 @@ def cancelDownloads(data):
ids = data['ids']
if ids:
for item in models.Item.query.filter(models.Item.id.in_(ids)):
t = models.Transfer.get(item.id)
t = state.downloads.transfers.get(item.id)
if t:
t.progress = None
t.added = None
t.save()
del state.downloads.transfers[item.id]
p = state.user()
if p in item.users:
item.users.remove(p)

44
oml/item/models.py
View file

@ -120,11 +120,11 @@ class Item(db.Model):
j['timesaccessed'] = self.timesaccessed
j['accessed'] = self.accessed
j['added'] = self.added
t = Transfer.get(self.id)
if t:
j['transferadded'] = t.added
j['transferprogress'] = t.progress
if state.downloads:
t = state.downloads.transfers.get(self.id)
if t:
j['transferadded'] = t['added']
j['transferprogress'] = t['progress']
# unused and slow
#j['users'] = list(map(str, list(self.users)))
@ -261,9 +261,12 @@ class Item(db.Model):
def update_mediastate(self):
# available, unavailable, transferring
t = Transfer.get(self.id)
if t and t.added and t.progress < 1:
self.info['mediastate'] = 'transferring'
if state.downloads:
t = state.downloads.transfers.get(self.id)
if t and t.get('added') and t.get('progress', 0) < 1:
self.info['mediastate'] = 'transferring'
else:
self.info['mediastate'] = 'available' if self.files.count() else 'unavailable'
else:
self.info['mediastate'] = 'available' if self.files.count() else 'unavailable'
@ -286,7 +289,8 @@ class Item(db.Model):
def delete(self, commit=True):
Sort.query.filter_by(item_id=self.id).delete()
Transfer.query.filter_by(item_id=self.id).delete()
if state.downloads and self.id in state.downloads.transfers:
del state.downloads.transfers[self.id]
state.db.session.delete(self)
icons.clear('cover:%s' % self.id)
icons.clear('preview:%s' % self.id)
@ -491,11 +495,10 @@ class Item(db.Model):
def queue_download(self):
u = state.user()
if not u in self.users:
t = Transfer.get_or_create(self.id)
if not t.added:
t.added = datetime.utcnow()
t.progress = 0
t.save()
state.downloads.transfers[self.id] = {
'added': datetime.utcnow(),
'progress': 0
}
logger.debug('queue %s for download', self.id)
self.add_user(u)
@ -525,9 +528,8 @@ class Item(db.Model):
self.meta[key] = f.info[key]
if u not in self.users:
self.add_user(u)
t = Transfer.get_or_create(self.id)
t.progress = 1
t.save()
if state.downloads and self.id in state.downloads.transfers:
del state.downloads.transfers[self.id]
self.added = datetime.utcnow()
Changelog.record(u, 'additem', self.id, f.info)
Changelog.record(u, 'edititem', self.id, self.meta)
@ -541,9 +543,8 @@ class Item(db.Model):
return True
else:
logger.debug('TRIED TO SAVE EXISTING FILE!!!')
t = Transfer.get_or_create(self.id)
t.progress = 1
t.save()
if state.downloads and self.id in state.downloads.transfers:
del state.downloads.transfers[self.id]
self.update()
return False
@ -566,7 +567,8 @@ class Item(db.Model):
else:
self.added = None
self.update()
Transfer.query.filter_by(item_id=self.id).delete()
if self.id in state.downloads.transfers:
del state.downloads.transfers[self.id]
Changelog.record(user, 'removeitem', self.id)
class Sort(db.Model):

1
oml/library.py
View file

@ -173,6 +173,7 @@ class Peer(object):
def join(self):
#self.library.join()
self.library.commit()
self.library.close()
self.sync_info()

14
oml/nodes.py
View file

@ -290,7 +290,6 @@ class Node(Thread):
}
def download(self, item):
from item.models import Transfer
self.resolve()
url = '%s/get/%s' % (self.url, item.id)
t1 = datetime.utcnow()
@ -316,19 +315,22 @@ class Node(Thread):
since_ct = (datetime.utcnow() - ct).total_seconds()
if since_ct > 1:
ct = datetime.utcnow()
t = Transfer.get(item.id)
if not t.added:
if state.shutdown:
return False
t = state.downloads.transfers.get(item.id)
if not t:
# transfer was canceled
trigger_event('transfer', {
'id': item.id, 'progress': -1
})
return False
else:
t.progress = size / item.info['size']
t.save()
t['progress'] = size / item.info['size']
state.downloads.transfers[item.id] = t
trigger_event('transfer', {
'id': item.id, 'progress': t.progress
'id': item.id, 'progress': t['progress']
})
state.downloads.transfers[item.id] = t
if state.bandwidth:
while not state.bandwidth.download(chunk_size) and not state.shutdown:
time.sleep(0.1)

18
oml/update.py
View file

@ -518,7 +518,8 @@ def migrate_10():
def migrate_11():
with db.session() as session:
from user.models import User, Metadata
from user.models import User, Metadata, List
from item.models import Transfer
from changelog import Changelog
import utils
for u in User.query.filter_by(peered=True):
@ -526,6 +527,9 @@ def migrate_11():
last = Changelog.query.filter_by(user_id=u.id).order_by('-revision').first()
if last:
peer.info['revision'] = last.revision
for l in List.query.filter_by(user_id=u.id):
if l.name:
peer.info['lists'][l.lame] = [i.id for i in l.get_items()]
for m in Metadata.query.filter_by(user_id=u.id):
peer.library[m.item_id] = {
'meta': dict(m.data),
@ -538,4 +542,16 @@ def migrate_11():
Changelog.query.filter_by(user_id=u.id).delete()
Metadata.query.filter_by(user_id=u.id).delete()
session.commit()
import state
import downloads
state.downloads = downloads.Downloads()
for t in Transfer.query:
if t.added:
state.downloads.transfers[t.item_id] = {
'added': t.added,
'progress': t.progress
}
state.db.session.add(t)
state.db.session.commit()
downloads.join()
return 11