Here are services to run clients, servers and periodic services using the reactor.
If you want to run a server service,
defines a service that can wrap an arbitrary
for constructing one of these directly from a descriptive string.
Additionally, this module (dynamically) defines various Service subclasses that let you represent clients and servers in a Service hierarchy. Endpoints APIs should be preferred for stream server services, but since those APIs do not yet exist for clients or datagram services, many of these are still useful.
They are as follows:
TCPServer, TCPClient, UNIXServer, UNIXClient, SSLServer, SSLClient, UDPServer, UNIXDatagramServer, UNIXDatagramClient, MulticastServer
These classes take arbitrary arguments in their constructors and pass them straight on to their respective reactor.listenXXX or reactor.connectXXX calls.
For example, the following service starts a web server on port 8080:
TCPServer(8080, server.Site(r)). See the documentation for
the reactor.listen/connect* methods for more information.
|Class||TimerService||Service to periodically call a function|
|Function||backoffPolicy||A timeout policy for
|Class||_ReconnectingProtocolProxy||A proxy for a Protocol to provide connectionLost notification to a client connection service, in support of reconnecting when connections are lost.|
|Function||_firstResult||Return the first element of a generator and exhaust it.|
|Class||_ClientMachine||State machine for maintaining a single outgoing connection to an endpoint.|
|Returns||the argument, or the global reactor if the argument is |
A timeout policy for
which computes an exponential backoff interval with configurable
|Parameters||initialDelay||Delay for the first reconnection attempt (default 1.0s). (type: |
|maxDelay||Maximum number of seconds between connection attempts (default 60 seconds,
or one minute). Note that this value is before jitter is applied, so the
actual maximum possible delay is this value plus the maximum possible
result of |
|factor||A multiplicative factor by which the delay grows on each failed reattempt.
Default: 1.5. (type: |
|jitter||A 0-argument callable that introduces noise into the delay. By default,
|Returns||a 1-argument callable that, given an attempt count, returns a floating
point number; the number of seconds to delay. (type: see |
Return the first element of a generator and exhaust it.
takes a generator of output results. If the generator is exhausted, the
later outputs aren't actually run.
|Parameters||gen||Generator to extract values from|
|Returns||The first element of the generator.|