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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
# Test suite for SocketServer.py
from test import test_support
from test.test_support import (verbose, verify, TESTFN, TestSkipped,
reap_children)
test_support.requires('network')
from SocketServer import *
import socket
import errno
import select
import time
import threading
import os
NREQ = 3
DELAY = 0.5
class MyMixinHandler:
def handle(self):
time.sleep(DELAY)
line = self.rfile.readline()
time.sleep(DELAY)
self.wfile.write(line)
class MyStreamHandler(MyMixinHandler, StreamRequestHandler):
pass
class MyDatagramHandler(MyMixinHandler, DatagramRequestHandler):
pass
class MyMixinServer:
def serve_a_few(self):
for i in range(NREQ):
self.handle_request()
def handle_error(self, request, client_address):
self.close_request(request)
self.server_close()
raise
teststring = "hello world\n"
def receive(sock, n, timeout=20):
r, w, x = select.select([sock], [], [], timeout)
if sock in r:
return sock.recv(n)
else:
raise RuntimeError, "timed out on %r" % (sock,)
def testdgram(proto, addr):
s = socket.socket(proto, socket.SOCK_DGRAM)
s.sendto(teststring, addr)
buf = data = receive(s, 100)
while data and '\n' not in buf:
data = receive(s, 100)
buf += data
verify(buf == teststring)
s.close()
def teststream(proto, addr):
s = socket.socket(proto, socket.SOCK_STREAM)
s.connect(addr)
s.sendall(teststring)
buf = data = receive(s, 100)
while data and '\n' not in buf:
data = receive(s, 100)
buf += data
verify(buf == teststring)
s.close()
class ServerThread(threading.Thread):
def __init__(self, addr, svrcls, hdlrcls):
threading.Thread.__init__(self)
self.__addr = addr
self.__svrcls = svrcls
self.__hdlrcls = hdlrcls
def run(self):
class svrcls(MyMixinServer, self.__svrcls):
pass
if verbose: print "thread: creating server"
svr = svrcls(self.__addr, self.__hdlrcls)
# pull the address out of the server in case it changed
# this can happen if another process is using the port
addr = getattr(svr, 'server_address')
if addr:
self.__addr = addr
if verbose: print "thread: serving three times"
svr.serve_a_few()
if verbose: print "thread: done"
seed = 0
def pickport():
global seed
seed += 1
return 10000 + (os.getpid() % 1000)*10 + seed
host = "localhost"
testfiles = []
def pickaddr(proto):
if proto == socket.AF_INET:
return (host, pickport())
else:
fn = TESTFN + str(pickport())
if os.name == 'os2':
# AF_UNIX socket names on OS/2 require a specific prefix
# which can't include a drive letter and must also use
# backslashes as directory separators
if fn[1] == ':':
fn = fn[2:]
if fn[0] in (os.sep, os.altsep):
fn = fn[1:]
fn = os.path.join('\socket', fn)
if os.sep == '/':
fn = fn.replace(os.sep, os.altsep)
else:
fn = fn.replace(os.altsep, os.sep)
testfiles.append(fn)
return fn
def cleanup():
for fn in testfiles:
try:
os.remove(fn)
except os.error:
pass
testfiles[:] = []
def testloop(proto, servers, hdlrcls, testfunc):
for svrcls in servers:
addr = pickaddr(proto)
if verbose:
print "ADDR =", addr
print "CLASS =", svrcls
t = ServerThread(addr, svrcls, hdlrcls)
if verbose: print "server created"
t.start()
if verbose: print "server running"
for i in range(NREQ):
time.sleep(DELAY)
if verbose: print "test client", i
testfunc(proto, addr)
if verbose: print "waiting for server"
t.join()
if verbose: print "done"
class ForgivingTCPServer(TCPServer):
# prevent errors if another process is using the port we want
def server_bind(self):
host, default_port = self.server_address
# this code shamelessly stolen from test.test_support
# the ports were changed to protect the innocent
import sys
for port in [default_port, 3434, 8798, 23833]:
try:
self.server_address = host, port
TCPServer.server_bind(self)
break
except socket.error as e:
(err, msg) = e
if err != errno.EADDRINUSE:
raise
print >>sys.__stderr__, \
' WARNING: failed to listen on port %d, trying another' % port
tcpservers = [ForgivingTCPServer, ThreadingTCPServer]
if hasattr(os, 'fork') and os.name not in ('os2',):
tcpservers.append(ForkingTCPServer)
udpservers = [UDPServer, ThreadingUDPServer]
if hasattr(os, 'fork') and os.name not in ('os2',):
udpservers.append(ForkingUDPServer)
if not hasattr(socket, 'AF_UNIX'):
streamservers = []
dgramservers = []
else:
class ForkingUnixStreamServer(ForkingMixIn, UnixStreamServer): pass
streamservers = [UnixStreamServer, ThreadingUnixStreamServer]
if hasattr(os, 'fork') and os.name not in ('os2',):
streamservers.append(ForkingUnixStreamServer)
class ForkingUnixDatagramServer(ForkingMixIn, UnixDatagramServer): pass
dgramservers = [UnixDatagramServer, ThreadingUnixDatagramServer]
if hasattr(os, 'fork') and os.name not in ('os2',):
dgramservers.append(ForkingUnixDatagramServer)
def sloppy_cleanup():
# See http://python.org/sf/1540386
# We need to reap children here otherwise a child from one server
# can be left running for the next server and cause a test failure.
time.sleep(DELAY)
reap_children()
def testall():
testloop(socket.AF_INET, tcpservers, MyStreamHandler, teststream)
sloppy_cleanup()
testloop(socket.AF_INET, udpservers, MyDatagramHandler, testdgram)
if hasattr(socket, 'AF_UNIX'):
sloppy_cleanup()
testloop(socket.AF_UNIX, streamservers, MyStreamHandler, teststream)
# Alas, on Linux (at least) recvfrom() doesn't return a meaningful
# client address so this cannot work:
##testloop(socket.AF_UNIX, dgramservers, MyDatagramHandler, testdgram)
def test_main():
import imp
if imp.lock_held():
# If the import lock is held, the threads will hang.
raise TestSkipped("can't run when import lock is held")
try:
testall()
finally:
cleanup()
reap_children()
if __name__ == "__main__":
test_main()
|
