def _connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
errno = _c.geterrno()
if self.timeout > 0.0 and res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
errno = _c.geterrno()
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if res < 0:
errno = _c.geterrno()
if errno == _c.EISCONN:
res = 0
elif timeout == -1:
return (errno, False)
else:
return (_c.EWOULDBLOCK, True)
if res == 0:
errno = 0
return (errno, False)
def _connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
errno = _c.geterrno()
if self.timeout > 0.0 and res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
errno = _c.geterrno()
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if res < 0:
errno = _c.geterrno()
if errno == _c.EISCONN:
res = 0
elif timeout == -1:
return (errno, False)
else:
return (_c.EWOULDBLOCK, True)
if res == 0:
errno = 0
return (errno, False)
def WRITE(self, data):
from pypy.rlib._rsocket_rffi import send, geterrno
length = send(self.fd, data, len(data), 0)
if length < 0:
raise WindowsError(geterrno(), "send")
return length
def poll(fddict, timeout=-1):
"""'fddict' maps file descriptors to interesting events.
'timeout' is an integer in milliseconds, and NOT a float
number of seconds, but it's the same in CPython. Use -1 for infinite.
Returns a list [(fd, events)].
"""
numfd = len(fddict)
pollfds = lltype.malloc(_c.pollfdarray, numfd, flavor='raw')
try:
i = 0
for fd, events in fddict.iteritems():
rffi.setintfield(pollfds[i], 'c_fd', fd)
rffi.setintfield(pollfds[i], 'c_events', events)
i += 1
assert i == numfd
ret = _c.poll(pollfds, numfd, timeout)
if ret < 0:
raise PollError(_c.geterrno())
retval = []
for i in range(numfd):
pollfd = pollfds[i]
fd = rffi.cast(lltype.Signed, pollfd.c_fd)
revents = rffi.cast(lltype.Signed, pollfd.c_revents)
if revents:
retval.append((fd, revents))
finally:
lltype.free(pollfds, flavor='raw')
return retval
def READ(self, size):
from pypy.rlib._rsocket_rffi import socketrecv, geterrno
with rffi.scoped_alloc_buffer(size) as buf:
length = socketrecv(self.fd, buf.raw, buf.size, 0)
if length < 0:
raise WindowsError(geterrno(), "recv")
return buf.str(length)
def poll(fddict, timeout=-1):
"""'fddict' maps file descriptors to interesting events.
'timeout' is an integer in milliseconds, and NOT a float
number of seconds, but it's the same in CPython. Use -1 for infinite.
Returns a list [(fd, events)].
"""
numfd = len(fddict)
pollfds = lltype.malloc(_c.pollfdarray, numfd, flavor='raw')
try:
i = 0
for fd, events in fddict.iteritems():
rffi.setintfield(pollfds[i], 'c_fd', fd)
rffi.setintfield(pollfds[i], 'c_events', events)
i += 1
assert i == numfd
ret = _c.poll(pollfds, numfd, timeout)
if ret < 0:
raise PollError(_c.geterrno())
retval = []
for i in range(numfd):
pollfd = pollfds[i]
fd = rffi.cast(lltype.Signed, pollfd.c_fd)
revents = rffi.cast(lltype.Signed, pollfd.c_revents)
if revents:
retval.append((fd, revents))
finally:
lltype.free(pollfds, flavor='raw')
return retval
def READ(self, size):
from pypy.rlib._rsocket_rffi import socketrecv, geterrno
with rffi.scoped_alloc_buffer(size) as buf:
length = socketrecv(self.fd, buf.raw, buf.size, 0)
if length < 0:
raise WindowsError(geterrno(), "recv")
return buf.str(length)
def _connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
errno = _c.geterrno()
timeout = self.timeout
if timeout > 0.0 and res < 0 and errno == _c.EWOULDBLOCK:
tv = rffi.make(_c.timeval)
rffi.setintfield(tv, 'c_tv_sec', int(timeout))
rffi.setintfield(tv, 'c_tv_usec',
int((timeout-int(timeout)) * 1000000))
fds = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(fds)
_c.FD_SET(self.fd, fds)
fds_exc = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(fds_exc)
_c.FD_SET(self.fd, fds_exc)
null = lltype.nullptr(_c.fd_set.TO)
try:
n = _c.select(self.fd + 1, null, fds, fds_exc, tv)
if n > 0:
if _c.FD_ISSET(self.fd, fds):
# socket writable == connected
return (0, False)
else:
# per MS docs, call getsockopt() to get error
assert _c.FD_ISSET(self.fd, fds_exc)
return (self.getsockopt_int(_c.SOL_SOCKET,
_c.SO_ERROR), False)
elif n == 0:
return (_c.EWOULDBLOCK, True)
else:
return (_c.geterrno(), False)
finally:
lltype.free(fds, flavor='raw')
lltype.free(fds_exc, flavor='raw')
lltype.free(tv, flavor='raw')
if res == 0:
errno = 0
return (errno, False)
def _connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
errno = _c.geterrno()
timeout = self.timeout
if timeout > 0.0 and res < 0 and errno == _c.EWOULDBLOCK:
tv = rffi.make(_c.timeval)
rffi.setintfield(tv, 'c_tv_sec', int(timeout))
rffi.setintfield(tv, 'c_tv_usec',
int((timeout - int(timeout)) * 1000000))
fds = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(fds)
_c.FD_SET(self.fd, fds)
fds_exc = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(fds_exc)
_c.FD_SET(self.fd, fds_exc)
null = lltype.nullptr(_c.fd_set.TO)
try:
n = _c.select(self.fd + 1, null, fds, fds_exc, tv)
if n > 0:
if _c.FD_ISSET(self.fd, fds):
# socket writable == connected
return (0, False)
else:
# per MS docs, call getsockopt() to get error
assert _c.FD_ISSET(self.fd, fds_exc)
return (self.getsockopt_int(
_c.SOL_SOCKET, _c.SO_ERROR), False)
elif n == 0:
return (_c.EWOULDBLOCK, True)
else:
return (_c.geterrno(), False)
finally:
lltype.free(fds, flavor='raw')
lltype.free(fds_exc, flavor='raw')
lltype.free(tv, flavor='raw')
if res == 0:
errno = 0
return (errno, False)
def select(inl, outl, excl, timeout=-1.0):
nfds = 0
if inl:
ll_inl = lltype.malloc(_c.fd_set.TO, flavor="raw")
_c.FD_ZERO(ll_inl)
for i in inl:
_c.FD_SET(i, ll_inl)
if i > nfds:
nfds = i
else:
ll_inl = lltype.nullptr(_c.fd_set.TO)
if outl:
ll_outl = lltype.malloc(_c.fd_set.TO, flavor="raw")
_c.FD_ZERO(ll_outl)
for i in outl:
_c.FD_SET(i, ll_outl)
if i > nfds:
nfds = i
else:
ll_outl = lltype.nullptr(_c.fd_set.TO)
if excl:
ll_excl = lltype.malloc(_c.fd_set.TO, flavor="raw")
_c.FD_ZERO(ll_excl)
for i in excl:
_c.FD_SET(i, ll_excl)
if i > nfds:
nfds = i
else:
ll_excl = lltype.nullptr(_c.fd_set.TO)
if timeout != -1.0:
ll_timeval = lltype.malloc(_c.timeval, flavor="raw")
frac = math.fmod(timeout, 1.0)
ll_timeval.c_tv_sec = int(timeout)
ll_timeval.c_tv_usec = int((timeout - int(timeout)) * 1000000.0)
else:
ll_timeval = lltype.nullptr(_c.timeval)
try:
res = _c.select(nfds + 1, ll_inl, ll_outl, ll_excl, ll_timeval)
if res == -1:
raise SelectError(_c.geterrno())
if res == 0:
return ([], [], [])
else:
return (
[i for i in inl if _c.FD_ISSET(i, ll_inl)],
[i for i in outl if _c.FD_ISSET(i, ll_outl)],
[i for i in excl if _c.FD_ISSET(i, ll_excl)],
)
finally:
if ll_inl:
lltype.free(ll_inl, flavor="raw")
if ll_outl:
lltype.free(ll_outl, flavor="raw")
if ll_excl:
lltype.free(ll_excl, flavor="raw")
if ll_timeval:
lltype.free(ll_timeval, flavor="raw")
def select(inl, outl, excl, timeout=-1.0):
nfds = 0
if inl:
ll_inl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_inl)
for i in inl:
_c.FD_SET(i, ll_inl)
if i > nfds:
nfds = i
else:
ll_inl = lltype.nullptr(_c.fd_set.TO)
if outl:
ll_outl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_outl)
for i in outl:
_c.FD_SET(i, ll_outl)
if i > nfds:
nfds = i
else:
ll_outl = lltype.nullptr(_c.fd_set.TO)
if excl:
ll_excl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_excl)
for i in excl:
_c.FD_SET(i, ll_excl)
if i > nfds:
nfds = i
else:
ll_excl = lltype.nullptr(_c.fd_set.TO)
if timeout != -1.0:
ll_timeval = rffi.make(_c.timeval)
rffi.setintfield(ll_timeval, 'c_tv_sec', int(timeout))
rffi.setintfield(ll_timeval, 'c_tv_usec', int((timeout-int(timeout))
* 1000000))
else:
ll_timeval = lltype.nullptr(_c.timeval)
try:
res = _c.select(nfds + 1, ll_inl, ll_outl, ll_excl, ll_timeval)
if res == -1:
raise SelectError(_c.geterrno())
if res == 0:
return ([], [], [])
else:
return (
[i for i in inl if _c.FD_ISSET(i, ll_inl)],
[i for i in outl if _c.FD_ISSET(i, ll_outl)],
[i for i in excl if _c.FD_ISSET(i, ll_excl)])
finally:
if ll_inl:
lltype.free(ll_inl, flavor='raw')
if ll_outl:
lltype.free(ll_outl, flavor='raw')
if ll_excl:
lltype.free(ll_excl, flavor='raw')
if ll_timeval:
lltype.free(ll_timeval, flavor='raw')
def select(inl, outl, excl, timeout=-1.0):
nfds = 0
if inl:
ll_inl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_inl)
for i in inl:
_c.FD_SET(i, ll_inl)
if i > nfds:
nfds = i
else:
ll_inl = lltype.nullptr(_c.fd_set.TO)
if outl:
ll_outl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_outl)
for i in outl:
_c.FD_SET(i, ll_outl)
if i > nfds:
nfds = i
else:
ll_outl = lltype.nullptr(_c.fd_set.TO)
if excl:
ll_excl = lltype.malloc(_c.fd_set.TO, flavor='raw')
_c.FD_ZERO(ll_excl)
for i in excl:
_c.FD_SET(i, ll_excl)
if i > nfds:
nfds = i
else:
ll_excl = lltype.nullptr(_c.fd_set.TO)
if timeout != -1.0:
ll_timeval = rffi.make(_c.timeval)
rffi.setintfield(ll_timeval, 'c_tv_sec', int(timeout))
rffi.setintfield(ll_timeval, 'c_tv_usec', int((timeout-int(timeout))
* 1000000))
else:
ll_timeval = lltype.nullptr(_c.timeval)
try:
res = _c.select(nfds + 1, ll_inl, ll_outl, ll_excl, ll_timeval)
if res == -1:
raise SelectError(_c.geterrno())
if res == 0:
return ([], [], [])
else:
return (
[i for i in inl if _c.FD_ISSET(i, ll_inl)],
[i for i in outl if _c.FD_ISSET(i, ll_outl)],
[i for i in excl if _c.FD_ISSET(i, ll_excl)])
finally:
if ll_inl:
lltype.free(ll_inl, flavor='raw')
if ll_outl:
lltype.free(ll_outl, flavor='raw')
if ll_excl:
lltype.free(ll_excl, flavor='raw')
if ll_timeval:
lltype.free(ll_timeval, flavor='raw')
def connect_ex(self, address):
"""This is like connect(address), but returns an error code (the errno
value) instead of raising an exception when an error occurs."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if self.timeout > 0.0:
errno = _c.geterrno()
if res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
elif timeout == -1:
return _c.geterrno()
else:
return _c.EWOULDBLOCK
if res != 0:
return _c.geterrno()
return res
def connect_ex(self, address):
"""This is like connect(address), but returns an error code (the errno
value) instead of raising an exception when an error occurs."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if self.timeout > 0.0:
errno = _c.geterrno()
if res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
elif timeout == -1:
return _c.geterrno()
else:
return _c.EWOULDBLOCK
if res != 0:
return _c.geterrno()
return res
def connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if self.timeout > 0.0:
errno = _c.geterrno()
if res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
elif timeout == -1:
raise self.error_handler()
else:
raise SocketTimeout
if res != 0:
raise self.error_handler()
def connect(self, address):
"""Connect the socket to a remote address."""
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
if self.timeout > 0.0:
errno = _c.geterrno()
if res < 0 and errno == _c.EINPROGRESS:
timeout = self._select(True)
if timeout == 0:
addr = address.lock()
res = _c.socketconnect(self.fd, addr, address.addrlen)
address.unlock()
elif timeout == -1:
raise self.error_handler()
else:
raise SocketTimeout
if res != 0:
raise self.error_handler()
def poll(fddict, timeout=-1):
"""'fddict' maps file descriptors to interesting events.
'timeout' is an integer in milliseconds, and NOT a float
number of seconds, but it's the same in CPython. Use -1 for infinite.
Returns a list [(fd, events)].
"""
numfd = len(fddict)
numevents = 0
socketevents = lltype.malloc(_c.WSAEVENT_ARRAY, numfd, flavor='raw')
try:
eventdict = {}
for fd, events in fddict.iteritems():
# select desired events
wsaEvents = 0
if events & _c.POLLIN:
wsaEvents |= _c.FD_READ | _c.FD_ACCEPT | _c.FD_CLOSE
if events & _c.POLLOUT:
wsaEvents |= _c.FD_WRITE | _c.FD_CONNECT | _c.FD_CLOSE
# if no events then ignore socket
if wsaEvents == 0:
continue
# select socket for desired events
event = _c.WSACreateEvent()
_c.WSAEventSelect(fd, event, wsaEvents)
eventdict[fd] = event
socketevents[numevents] = event
numevents += 1
assert numevents <= numfd
# if no sockets then return immediately
# XXX commented out by arigo - we just want to sleep for
# 'timeout' milliseconds in this case, which is what
# I hope WSAWaitForMultipleEvents will do, no?
#if numevents == 0:
# return []
# prepare timeout
if timeout < 0:
timeout = _c.INFINITE
ret = _c.WSAWaitForMultipleEvents(numevents, socketevents, False,
timeout, False)
if ret == _c.WSA_WAIT_TIMEOUT:
return []
if ret == _c.WSA_WAIT_FAILED:
raise PollError(_c.geterrno())
retval = []
info = rffi.make(_c.WSANETWORKEVENTS)
for fd, event in eventdict.iteritems():
if _c.WSAEnumNetworkEvents(fd, event, info) < 0:
continue
revents = 0
if info.c_lNetworkEvents & _c.FD_READ:
revents |= _c.POLLIN
if info.c_lNetworkEvents & _c.FD_ACCEPT:
revents |= _c.POLLIN
if info.c_lNetworkEvents & _c.FD_WRITE:
revents |= _c.POLLOUT
if info.c_lNetworkEvents & _c.FD_CONNECT:
if info.c_iErrorCode[_c.FD_CONNECT_BIT]:
revents |= _c.POLLERR
else:
revents |= _c.POLLOUT
if info.c_lNetworkEvents & _c.FD_CLOSE:
if info.c_iErrorCode[_c.FD_CLOSE_BIT]:
revents |= _c.POLLERR
else:
if fddict[fd] & _c.POLLIN:
revents |= _c.POLLIN
if fddict[fd] & _c.POLLOUT:
revents |= _c.POLLOUT
if revents:
retval.append((fd, revents))
lltype.free(info, flavor='raw')
finally:
for i in range(numevents):
_c.WSACloseEvent(socketevents[i])
lltype.free(socketevents, flavor='raw')
return retval
def last_error():
return CSocketError(_c.geterrno())
def last_error():
return CSocketError(_c.geterrno())
def WRITE(self, data):
from pypy.rlib._rsocket_rffi import send, geterrno
length = send(self.fd, data, len(data), 0)
if length < 0:
raise WindowsError(geterrno(), "send")
return length
def poll(fddict, timeout=-1):
"""'fddict' maps file descriptors to interesting events.
'timeout' is an integer in milliseconds, and NOT a float
number of seconds, but it's the same in CPython. Use -1 for infinite.
Returns a list [(fd, events)].
"""
numfd = len(fddict)
numevents = 0
socketevents = lltype.malloc(_c.WSAEVENT_ARRAY, numfd, flavor='raw')
try:
eventdict = {}
for fd, events in fddict.iteritems():
# select desired events
wsaEvents = 0
if events & _c.POLLIN:
wsaEvents |= _c.FD_READ | _c.FD_ACCEPT | _c.FD_CLOSE
if events & _c.POLLOUT:
wsaEvents |= _c.FD_WRITE | _c.FD_CONNECT | _c.FD_CLOSE
# if no events then ignore socket
if wsaEvents == 0:
continue
# select socket for desired events
event = _c.WSACreateEvent()
if _c.WSAEventSelect(fd, event, wsaEvents) != 0:
raise PollError(_c.geterrno())
eventdict[fd] = event
socketevents[numevents] = event
numevents += 1
assert numevents <= numfd
# if no sockets then return immediately
# XXX commented out by arigo - we just want to sleep for
# 'timeout' milliseconds in this case, which is what
# I hope WSAWaitForMultipleEvents will do, no?
#if numevents == 0:
# return []
# prepare timeout
if timeout < 0:
timeout = _c.INFINITE
ret = _c.WSAWaitForMultipleEvents(numevents, socketevents,
False, timeout, False)
if ret == _c.WSA_WAIT_TIMEOUT:
return []
if ret == r_uint(_c.WSA_WAIT_FAILED):
raise PollError(_c.geterrno())
retval = []
info = rffi.make(_c.WSANETWORKEVENTS)
for fd, event in eventdict.iteritems():
if _c.WSAEnumNetworkEvents(fd, event, info) < 0:
continue
revents = 0
if info.c_lNetworkEvents & _c.FD_READ:
revents |= _c.POLLIN
if info.c_lNetworkEvents & _c.FD_ACCEPT:
revents |= _c.POLLIN
if info.c_lNetworkEvents & _c.FD_WRITE:
revents |= _c.POLLOUT
if info.c_lNetworkEvents & _c.FD_CONNECT:
if info.c_iErrorCode[_c.FD_CONNECT_BIT]:
revents |= _c.POLLERR
else:
revents |= _c.POLLOUT
if info.c_lNetworkEvents & _c.FD_CLOSE:
if info.c_iErrorCode[_c.FD_CLOSE_BIT]:
revents |= _c.POLLERR
else:
if fddict[fd] & _c.POLLIN:
revents |= _c.POLLIN
if fddict[fd] & _c.POLLOUT:
revents |= _c.POLLOUT
if revents:
retval.append((fd, revents))
lltype.free(info, flavor='raw')
finally:
for fd, event in eventdict.iteritems():
_c.WSAEventSelect(fd, event, 0)
_c.WSACloseEvent(event)
lltype.free(socketevents, flavor='raw')
return retval
def select(space, w_iwtd, w_owtd, w_ewtd, w_timeout=None):
"""Wait until one or more file descriptors are ready for some kind of I/O.
The first three arguments are sequences of file descriptors to be waited for:
rlist -- wait until ready for reading
wlist -- wait until ready for writing
xlist -- wait for an ``exceptional condition''
If only one kind of condition is required, pass [] for the other lists.
A file descriptor is either a socket or file object, or a small integer
gotten from a fileno() method call on one of those.
The optional 4th argument specifies a timeout in seconds; it may be
a floating point number to specify fractions of seconds. If it is absent
or None, the call will never time out.
The return value is a tuple of three lists corresponding to the first three
arguments; each contains the subset of the corresponding file descriptors
that are ready.
*** IMPORTANT NOTICE ***
On Windows, only sockets are supported; on Unix, all file descriptors.
"""
iwtd_w = space.listview(w_iwtd)
owtd_w = space.listview(w_owtd)
ewtd_w = space.listview(w_ewtd)
ll_inl = lltype.nullptr(_c.fd_set.TO)
ll_outl = lltype.nullptr(_c.fd_set.TO)
ll_errl = lltype.nullptr(_c.fd_set.TO)
ll_timeval = lltype.nullptr(_c.timeval)
try:
fdlistin = None
fdlistout = None
fdlisterr = None
nfds = -1
if len(iwtd_w) > 0:
ll_inl = lltype.malloc(_c.fd_set.TO, flavor='raw')
fdlistin, nfds = _build_fd_set(space, iwtd_w, ll_inl, nfds)
if len(owtd_w) > 0:
ll_outl = lltype.malloc(_c.fd_set.TO, flavor='raw')
fdlistout, nfds = _build_fd_set(space, owtd_w, ll_outl, nfds)
if len(ewtd_w) > 0:
ll_errl = lltype.malloc(_c.fd_set.TO, flavor='raw')
fdlisterr, nfds = _build_fd_set(space, ewtd_w, ll_errl, nfds)
if space.is_w(w_timeout, space.w_None):
timeout = -1.0
else:
timeout = space.float_w(w_timeout)
if timeout >= 0.0:
ll_timeval = rffi.make(_c.timeval)
i = int(timeout)
rffi.setintfield(ll_timeval, 'c_tv_sec', i)
rffi.setintfield(ll_timeval, 'c_tv_usec', int((timeout-i)*1000000))
res = _c.select(nfds + 1, ll_inl, ll_outl, ll_errl, ll_timeval)
if res < 0:
errno = _c.geterrno()
msg = _c.socket_strerror_str(errno)
w_errortype = space.fromcache(Cache).w_error
raise OperationError(w_errortype, space.newtuple([
space.wrap(errno), space.wrap(msg)]))
resin_w = []
resout_w = []
reserr_w = []
if res > 0:
if fdlistin is not None:
_unbuild_fd_set(space, iwtd_w, fdlistin, ll_inl, resin_w)
if fdlistout is not None:
_unbuild_fd_set(space, owtd_w, fdlistout, ll_outl, resout_w)
if fdlisterr is not None:
_unbuild_fd_set(space, ewtd_w, fdlisterr, ll_errl, reserr_w)
finally:
if ll_timeval: lltype.free(ll_timeval, flavor='raw')
if ll_errl: lltype.free(ll_errl, flavor='raw')
if ll_outl: lltype.free(ll_outl, flavor='raw')
if ll_inl: lltype.free(ll_inl, flavor='raw')
return space.newtuple([space.newlist(resin_w),
space.newlist(resout_w),
space.newlist(reserr_w)])
