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Name: socketpool
Version: 0.5.3
Summary: Python socket pool
Home-page: http://github.com/benoitc/socketpool
Author: UNKNOWN
Author-email: UNKNOWN
License: BSD
Description: socketpool
----------
Socketpool - a simple Python socket pool.
Socket pool is a simple socket pool that suports multiple factories and
backends. It can easily be used by gevent, eventlet or any other library.
Usage
-----
socketpool offers 3 main classes, a `ConnectionPool` class able to
accept a factory and a backend, `Connector` an interface class
inherited by all connectors and a default TCP connector `TcpConnector` .
Example of a simple echo client using Gevent
--------------------------------------------
::
import gevent
from gevent.server import StreamServer
from socketpool import ConnectionPool, TcpConnector
# this handler will be run for each incoming connection
# in a dedicated greenlet
def echo(sock, address):
print ('New connection from %s:%s' % address)
while True:
data = sock.recv(1024)
if not data:
break
sock.send(data)
print ("echoed %r" % data)
if __name__ == '__main__':
import time
options = {'host': 'localhost', 'port': 6000}
pool = ConnectionPool(factory=TcpConnector, backend="gevent")
server = StreamServer(('localhost', 6000), echo)
gevent.spawn(server.serve_forever)
def runpool(data):
print 'ok'
with pool.connection(**options) as conn:
print 'sending'
sent = conn.send(data)
print 'send %d bytes' % sent
echo_data = conn.recv(1024)
print "got %s" % data
assert data == echo_data
start = time.time()
jobs = [gevent.spawn(runpool, "blahblah") for _ in xrange(20)]
gevent.joinall(jobs)
delay = time.time() - start
Example of a connector
----------------------
::
class TcpConnector(Connector):
def __init__(self, host, port, backend_mod, pool=None):
self._s = backend_mod.Socket(socket.AF_INET, socket.SOCK_STREAM)
self._s.connect((host, port))
self.host = host
self.port = port
self._connected = True
self._life = time.time()
self._pool = pool
def __del__(self):
self.release()
def matches(self, **match_options):
target_host = match_options.get('host')
target_port = match_options.get('port')
return target_host == self.host and target_port == self.port
def is_connected(self):
return self._connected
def handle_exception(self, exception):
print 'got an exception'
print str(exception)
def get_lifetime(self):
return self._life
def invalidate(self):
self._s.close()
self._connected = False
self._life = -1
def release(self):
if self._pool is not None:
if self._connected:
self._pool.release_connection(self)
else:
self._pool = None
def send(self, data):
return self._s.send(data)
def recv(self, size=1024):
return self._s.recv(size)
Authors
-------
- Benoît Chesneau (benoitc) <benoitc@e-engura.org>
- Tarek Ziade (tarek) <tarek@ziade.org>
License
-------
socketpool is available in the public domain (see UNLICENSE). socketpool
is also optionally available under the MIT License (see LICENSE), meant
especially for jurisdictions that do not recognize public domain works.
Platform: UNKNOWN
Classifier: Development Status :: 4 - Beta
Classifier: Environment :: Web Environment
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Topic :: Software Development :: Libraries
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