def select(rlist, wlist, xlist, timeout=None):
rlist_norm = _normalize_fd_list(rlist)
wlist_norm = _normalize_fd_list(wlist)
xlist_norm = _normalize_fd_list(xlist)
all_fds = rlist_norm + wlist_norm + xlist_norm
if not all_fds:
nfd = 0
else:
nfd = max(all_fds) + 1
rfds = _make_fdset(rlist_norm)
wfds = _make_fdset(wlist_norm)
xfds = _make_fdset(xlist_norm)
if timeout is None:
timeval = None
else:
timeval = _Timeval.new()
frac, integer = math.modf(timeout)
timeval.Sec = int(integer)
timeval.Usec = int(frac * 1000000.0)
_syscall.invoke(_Select, nfd, rfds, wfds, xfds, timeval)
return ([
rlist[i] for i, fd in enumerate(rlist_norm) if _fdset_isset(fd, rfds)
], [
wlist[i] for i, fd in enumerate(wlist_norm) if _fdset_isset(fd, wfds)
], [xlist[i] for i, fd in enumerate(xlist_norm) if _fdset_isset(fd, xfds)])
def select(rlist, wlist, xlist, timeout=None):
rlist_norm = _normalize_fd_list(rlist)
wlist_norm = _normalize_fd_list(wlist)
xlist_norm = _normalize_fd_list(xlist)
all_fds = rlist_norm + wlist_norm + xlist_norm
if not all_fds:
nfd = 0
else:
nfd = max(all_fds) + 1
rfds = _make_fdset(rlist_norm)
wfds = _make_fdset(wlist_norm)
xfds = _make_fdset(xlist_norm)
if timeout is None:
timeval = None
else:
timeval = _Timeval.new()
frac, integer = math.modf(timeout)
timeval.Sec = int(integer)
timeval.Usec = int(frac * 1000000.0)
_syscall.invoke(_Select, nfd, rfds, wfds, xfds, timeval)
return ([rlist[i] for i, fd in enumerate(rlist_norm) if _fdset_isset(fd, rfds)],
[wlist[i] for i, fd in enumerate(wlist_norm) if _fdset_isset(fd, wfds)],
[xlist[i] for i, fd in enumerate(xlist_norm) if _fdset_isset(fd, xfds)])
def waitpid(pid, options): status = WaitStatus.new() _syscall.invoke(Wait4, pid, status, options, None) return pid, _encode_wait_result(status)