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Inheriting socket handles on Windows

Hello all.

I'm trying to get a server process to do the following
on both Linux and Windows:

1) Create a socket and bind it to some port number.
2) Use spawnl to create other processes that will
then listen and accept on that socket.

On Linux I've managed to do that by using command line
args to pass the FD number of the listening socket to
the spawned processes. Eg:

# SERVER
#
s = socket.socket(s ocket.AF_INET, socket.SOCK_STR EAM)
s.bind(('', 9999))
s.listen(5)
exe = "childscrip t"
fds = str(s.fileno())
pid = os.spawnl(os.P_ NOWAIT, exe, exe, fds))
print "process spawned"
time.sleep(5)

# CLIENT
# where fds was received from the parent
#
fds = int(sys.argv[1])
s = socket.fromfd(f ds, socket.AF_INET, socket.SOCK_STR EAM)
s.listen(5)
print "child listening..."

However, this fails on Windows as it doesn't have the fromfd
function. Aren't WinSock handles inherited by default? And if
so, is there some other way to perform a listen()/accept() in
this case?

Regards,
Iker Arizmendi

Jul 19 '05 #1
0 1177

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