Hi,
I'm getting to grips with sockets and http servers in Python. I have
this bit of code which should be enough for a simple web demo
import socket, os
from BaseHTTPServer import HTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
def test(HandlerClass = SimpleHTTPRequestHandler,
ServerClass = HTTPServer):
server_address = ('', 8000) # (address, port)
httpd = ServerClass(server_address, HandlerClass)
sa = httpd.socket.getsockname()
print "Serving HTTPS on", sa[0], "port", sa[1], "..."
httpd.serve_forever()
if __name__ == '__main__':
test()
I've noticed though that every time I connect to this server in
Firefox/IE, it seems to leave a socket behind. If I view the output of
netstat on the server, I can see a number of connections still seem to
be there.
Also, using the echo server and client programs from the O'Reilly
Programming Python book, I find that while the server doesn't seem to
leave connections behind, the client application does
import sys
from socket import *
serverHost = '192.168.4.34'
serverPort = 50007
message = ['Hello network world']
if len(sys.argv) > 1:
serverHost = sys.argv[1]
if len(sys.argv) > 2:
message = sys.argv[2:]
sockobj = socket(AF_INET, SOCK_STREAM)
sockobj.connect((serverHost, serverPort))
for line in message:
sockobj.send(line)
data = sockobj.recv(1024)
print 'Client received:', repr(data)
sockobj.close()
How do I make sure that all my sockets have been completely disposed of?
I'm wanting to use Python to implement a client-server application, but
experience so far seems to be that after a flurry of network activity,
Python will use up all the available sockets.
Thanks,
Dave
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