def __init__(self, pair, max_size, net_timeout, conn_timeout, use_ssl,
                 use_greenlets, ssl_keyfile=None, ssl_certfile=None,
                 ssl_cert_reqs=None, ssl_ca_certs=None,
                 wait_queue_timeout=None, wait_queue_multiple=None):
        # Only check a socket's health with _closed() every once in a while.
        # Can override for testing: 0 to always check, None to never check.
        self._check_interval_seconds = 1

        self.sockets = set()
        self.lock = threading.Lock()

        # Keep track of resets, so we notice sockets created before the most
        # recent reset and close them.
        self.pool_id = 0
        self.pid = os.getpid()
        self.pair = pair
        self.max_size = max_size
        self.net_timeout = net_timeout
        self.conn_timeout = conn_timeout
        self.wait_queue_timeout = wait_queue_timeout
        self.wait_queue_multiple = wait_queue_multiple
        self.use_ssl = use_ssl
        self.ssl_keyfile = ssl_keyfile
        self.ssl_certfile = ssl_certfile
        self.ssl_cert_reqs = ssl_cert_reqs
        self.ssl_ca_certs = ssl_ca_certs

        if HAS_SSL and use_ssl and not ssl_cert_reqs:
            self.ssl_cert_reqs = ssl.CERT_NONE

        # Map self._ident.get() -> request socket
        self._tid_to_sock = {}

        if use_greenlets and not thread_util.have_gevent:
            raise ConfigurationError(
                "The Gevent module is not available. "
                "Install the gevent package from PyPI."
            )

        self._ident = thread_util.create_ident(use_greenlets)

        # Count the number of calls to start_request() per thread or greenlet
        self._request_counter = thread_util.Counter(use_greenlets)

        if self.wait_queue_multiple is None or self.max_size is None:
            max_waiters = None
        else:
            max_waiters = self.max_size * self.wait_queue_multiple

        self._socket_semaphore = thread_util.create_semaphore(
            self.max_size, max_waiters, use_greenlets)
:Parameters:
dataset/ETHPy150Open blynch/CloudMemeBackend/pymongo/pool.py/Pool.__init__