1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
# The contents of this file are subject to the BitTorrent Open Source License
# Version 1.1 (the License). You may not copy or use this file, in either
# source code or executable form, except in compliance with the License. You
# may obtain a copy of the License at http://www.bittorrent.com/license/.
#
# Software distributed under the License is distributed on an AS IS basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
# Written by Bram Cohen, Uoti Urpala
from __future__ import division
class DownloaderFeedback(object):
def __init__(self, choker, upfunc, upfunc2, downfunc, uptotal, downtotal,
remainingfunc, leftfunc, file_length, finflag, downloader,
files, ever_got_incoming, rerequester):
self.downloader = downloader
self.picker = downloader.picker
self.storage = downloader.storage
self.choker = choker
self.upfunc = upfunc
self.upfunc2 = upfunc2
self.downfunc = downfunc
self.uptotal = uptotal
self.downtotal = downtotal
self.remainingfunc = remainingfunc
self.leftfunc = leftfunc
self.file_length = file_length
self.finflag = finflag
self.files = files
self.ever_got_incoming = ever_got_incoming
self.rerequester = rerequester
self.lastids = []
def _rotate(self):
cs = self.choker.connections
for peerid in self.lastids:
for i in xrange(len(cs)):
if cs[i].id == peerid:
return cs[i:] + cs[:i]
return cs
def collect_spew(self):
l = [ ]
cs = self._rotate()
self.lastids = [c.id for c in cs]
for c in cs:
rec = {}
rec['id'] = c.id
rec["ip"] = c.ip
rec["is_optimistic_unchoke"] = (c is self.choker.connections[0])
if c.locally_initiated:
rec["initiation"] = "L"
else:
rec["initiation"] = "R"
u = c.upload
rec["upload"] = (u.measure.get_total(), int(u.measure.get_rate()),
u.interested, u.choked)
d = c.download
rec["download"] = (d.measure.get_total(),int(d.measure.get_rate()),
d.interested, d.choked, d.is_snubbed())
rec['completed'] = 1 - d.have.numfalse / len(d.have)
rec['speed'] = d.connection.download.peermeasure.get_rate()
l.append(rec)
return l
def get_statistics(self, spewflag=False, fileflag=False):
status = {}
numSeeds = 0
numPeers = 0
for d in self.downloader.downloads:
if d.have.numfalse == 0:
numSeeds += 1
else:
numPeers += 1
status['numSeeds'] = numSeeds
status['numPeers'] = numPeers
status['trackerSeeds'] = self.rerequester.tracker_num_seeds
status['trackerPeers'] = self.rerequester.tracker_num_peers
status['upRate'] = self.upfunc()
status['upRate2'] = self.upfunc2()
status['upTotal'] = self.uptotal()
status['ever_got_incoming'] = self.ever_got_incoming()
missingPieces = 0
numCopyList = []
numCopies = 0
for i in self.picker.crosscount:
missingPieces += i
if missingPieces == 0:
numCopies += 1
else:
fraction = 1 - missingPieces / self.picker.numpieces
numCopyList.append(fraction)
if fraction == 0 or len(numCopyList) >= 3:
break
numCopies -= numSeeds
if self.picker.numgot == self.picker.numpieces:
numCopies -= 1
status['numCopies'] = numCopies
status['numCopyList'] = numCopyList
status['discarded'] = self.downloader.discarded_bytes
status['storage_numcomplete'] = self.storage.stat_numfound + \
self.storage.stat_numdownloaded
status['storage_dirty'] = len(self.storage.stat_dirty)
status['storage_active'] = len(self.storage.stat_active)
status['storage_new'] = len(self.storage.stat_new)
status['storage_numflunked'] = self.storage.stat_numflunked
if spewflag:
status['spew'] = self.collect_spew()
status['bad_peers'] = self.downloader.bad_peers
if fileflag:
undl = self.storage.storage.undownloaded
unal = self.storage.storage.unallocated
status['files_left'] = [undl[fname] for fname in self.files]
status['files_allocated'] = [not unal[fn] for fn in self.files]
if self.finflag.isSet():
status['downRate'] = 0
status['downTotal'] = self.downtotal()
status['fractionDone'] = 1
return status
timeEst = self.remainingfunc()
status['timeEst'] = timeEst
if self.file_length > 0:
fractionDone = 1 - self.leftfunc() / self.file_length
else:
fractionDone = 1
status.update({
"fractionDone" : fractionDone,
"downRate" : self.downfunc(),
"downTotal" : self.downtotal()
})
return status
|
