134 lines
2.8 KiB
Python
Executable File
134 lines
2.8 KiB
Python
Executable File
"Socket wrapper for Windows, which does not support dup()."
|
|
|
|
# (And hence, fromfd() and makefile() are unimplemented in C....)
|
|
|
|
# XXX Living dangerously here -- close() is implemented by deleting a
|
|
# reference. Thus we rely on the real _socket module to close on
|
|
# deallocation, and also hope that nobody keeps a reference to our _sock
|
|
# member.
|
|
|
|
|
|
|
|
try:
|
|
from _socket import *
|
|
except ImportError:
|
|
from socket import *
|
|
|
|
_realsocketcall = socket
|
|
|
|
|
|
def socket(family, type, proto=0):
|
|
return _socketobject(_realsocketcall(family, type, proto))
|
|
|
|
|
|
class _socketobject:
|
|
|
|
def __init__(self, sock):
|
|
self._sock = sock
|
|
|
|
def close(self):
|
|
self._sock = 0
|
|
|
|
def __del__(self):
|
|
self.close()
|
|
|
|
def accept(self):
|
|
sock, addr = self._sock.accept()
|
|
return _socketobject(sock), addr
|
|
|
|
def dup(self):
|
|
return _socketobject(self._sock)
|
|
|
|
def makefile(self, mode='r', bufsize=-1):
|
|
return _fileobject(self._sock, mode, bufsize)
|
|
|
|
_s = "def %s(self, *args): return apply(self._sock.%s, args)\n\n"
|
|
for _m in ('bind', 'connect', 'fileno', 'listen',
|
|
'getpeername', 'getsockname',
|
|
'getsockopt', 'setsockopt',
|
|
'recv', 'recvfrom', 'send', 'sendto',
|
|
'setblocking',
|
|
'shutdown'):
|
|
exec _s % (_m, _m)
|
|
|
|
|
|
class _fileobject:
|
|
|
|
def __init__(self, sock, mode, bufsize):
|
|
self._sock = sock
|
|
self._mode = mode
|
|
if bufsize < 0:
|
|
bufsize = 512
|
|
self._rbufsize = max(1, bufsize)
|
|
self._wbufsize = bufsize
|
|
self._wbuf = self._rbuf = ""
|
|
|
|
def close(self):
|
|
try:
|
|
if self._sock:
|
|
self.flush()
|
|
finally:
|
|
self._sock = 0
|
|
|
|
def __del__(self):
|
|
self.close()
|
|
|
|
def flush(self):
|
|
if self._wbuf:
|
|
self._sock.send(self._wbuf)
|
|
self._wbuf = ""
|
|
|
|
def fileno(self):
|
|
return self._sock.fileno()
|
|
|
|
def write(self, data):
|
|
self._wbuf = self._wbuf + data
|
|
if self._wbufsize == 1:
|
|
if '\n' in data:
|
|
self.flush()
|
|
else:
|
|
if len(self._wbuf) >= self._wbufsize:
|
|
self.flush()
|
|
|
|
def writelines(self, list):
|
|
filter(self._sock.send, list)
|
|
self.flush()
|
|
|
|
def read(self, n=-1):
|
|
if n >= 0:
|
|
while len(self._rbuf) < n:
|
|
new = self._sock.recv(self._rbufsize)
|
|
if not new: break
|
|
self._rbuf = self._rbuf + new
|
|
data, self._rbuf = self._rbuf[:n], self._rbuf[n:]
|
|
return data
|
|
while 1:
|
|
new = self._sock.recv(self._rbufsize)
|
|
if not new: break
|
|
self._rbuf = self._rbuf + new
|
|
data, self._rbuf = self._rbuf, ""
|
|
return data
|
|
|
|
def readline(self):
|
|
import string
|
|
data = ""
|
|
i = string.find(self._rbuf, '\n')
|
|
while i < 0:
|
|
new = self._sock.recv(self._rbufsize)
|
|
if not new: break
|
|
i = string.find(new, '\n')
|
|
if i >= 0: i = i + len(self._rbuf)
|
|
self._rbuf = self._rbuf + new
|
|
if i < 0: i = len(self._rbuf)
|
|
else: i = i+1
|
|
data, self._rbuf = self._rbuf[:i], self._rbuf[i:]
|
|
return data
|
|
|
|
def readlines(self):
|
|
list = []
|
|
while 1:
|
|
line = self.readline()
|
|
if not line: break
|
|
list.append(line)
|
|
return list
|