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Low level event reactor for Pyjoyment with asyncio support.

Project description

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Pyjo-Reactor-Asyncio

Low level event reactor with asyncio support for Pyjoyment.

Pyjoyment

An asynchronous, event driver web framework for the Python programming language.

Pyjoyment provides own reactor which handles I/O and timer events in its own main event loop but it supports other loops, ie. libev or asyncio.

See http://www.pyjoyment.net/

asyncio

This module provides infrastructure for writing single-threaded concurrent code using coroutines, multiplexing I/O access over sockets and other resources, running network clients and servers, and other related primitives.

The asyncio module was designed in PEP3156. For a motivational primer on transports and protocols, see PEP3153.

See http://asyncio.org/

Trollius

Trollius is a portage of the asyncio project (PEP3156) on Python 2. Trollius works on Python 2.6-3.5.

See https://trollius.readthedocs.org/

Examples

Non-blocking TCP client/server

import Pyjo.Reactor.Asyncio
import Pyjo.IOLoop


# Listen on port 3000
@Pyjo.IOLoop.server(port=3000)
def server(loop, stream, cid):

    @stream.on
    def read(stream, chunk):
        # Process input chunk
        print("Server: {0}".format(chunk.decode('utf-8')))

        # Write response
        stream.write(b"HTTP/1.1 200 OK\x0d\x0a\x0d\x0a")

        # Disconnect client
        stream.close_gracefully()


# Connect to port 3000
@Pyjo.IOLoop.client(port=3000)
def client(loop, err, stream):

    @stream.on
    def read(stream, chunk):
        # Process input
        print("Client: {0}".format(chunk.decode('utf-8')))

    # Write request
    stream.write(b"GET / HTTP/1.1\x0d\x0a\x0d\x0a")


# Add a timer
@Pyjo.IOLoop.timer(3)
def timeouter(loop):
    print("Timeout")
    # Shutdown server
    loop.remove(server)


# Start event loop
Pyjo.IOLoop.start()

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