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8 Commits
Author | SHA1 | Date |
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aewens | 19cf34904f | |
aewens | 6c1cc0bf9a | |
aewens | bd21d1501e | |
aewens | 2e0af94286 | |
aewens | ab2ede2927 | |
aewens | b3355baac5 | |
aewens | b8bb9f8189 | |
aewens | 41e75554ed |
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@ -0,0 +1,27 @@
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20190825
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========
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# Redukti
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Components:
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* State: Dictionary holding values of application state
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* Action: A name and data pair that encode a change to the state
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* Reducer: A function that takes a state and action to produce a new state
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* Root reducer: Passes the state and action to all reducers
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# Derivide
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Components:
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* Event: Destination, type of change occurring, old value, and new value
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* Stream: A series of events
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* Pool: Collection of resources for off main thread tasks
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* Plugin: Takes events from stream, performs side effect, and returns result
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* Schema: Set of rules describing the structure of data, used for validating
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* Blob: Collection of data validated against schema(s)
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* Database: The validated form of the blob from schema(s)
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# Taijitu
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Components:
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* Dispatcher: Waits for new events and sends them to new reducers or listener
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* Listener: Waits for new events and sends them to plugins or dispatcher
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@ -0,0 +1,132 @@
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from abots.helpers import generator, coroutine, infinitedict
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from asyncio import get_event_loop, sleep, wait, Queue
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from socket import socket, timeout as sock_timeout
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from socket import AF_INET, SOCK_STREAM, SOL_SOCKET, SO_REUSEADDR
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from ssl import wrap_socket
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from time import sleep as nap
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async def handle_client(loop, client):
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while True:
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try:
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request = await loop.sock_recv(client, 256)
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except Exception as e:
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continue
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if request:
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message = request.decode()
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print(message)
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await sleep(0)
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client.close()
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async def run_server(loop, server):
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while True:
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client, _ = await loop.sock_accept(server)
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loop.create_task(handle_client(loop, client))
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await sleep(0)
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async def push(loop, queues):
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while all([queue for queue in queues]):
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send = queues.get("push")
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receive = queues.get("pull")
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event = await send.get()
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print("PUSH", event)
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assert isinstance(event, tuple), f"Expected tuple: {event}"
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if len(event) == 2:
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error, response = event
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if error:
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break
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elif len(event) == 4:
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where, context, old_value, new_value = event
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await receive.put(event)
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await sleep(0)
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return
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async def pull(loop, queues):
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plugins = dict()
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print("PULL")
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while all([queue for queue in queues]):
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hook = queues.get("hook")
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send = queues.get("push")
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receive = queues.get("pull")
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while not hook.empty():
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plugin = await hook.get()
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print("PULL", plugin)
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assert callable(plugin), f"Expected function: {plugin}"
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plugins[plugin.__name__.lower()] = plugin
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event = await receive.get()
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print("PULL", event)
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assert isinstance(event, tuple), f"Expected tuple: {event}"
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assert len(event) == 4, f"Invalid format: {event}"
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where, context, old_value, new_value = event
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stop = False
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for plugin_name, plugin in plugins.items():
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if plugin_name == where:
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result = plugin(context, old_value, new_value)
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assert isinstance(result, tuple), f"Expected tuple: {result}"
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assert len(result) == 2, f"Invalid format: {result}"
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await send.put(result)
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error, response = result
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if error:
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stop = True
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break
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if stop:
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break
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await sleep(0)
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return
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def test(context, old_value, new_value):
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status = old_value == new_value
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return True, status
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async def main(loop):
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tasks = list()
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queues = dict()
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queues["hook"] = Queue()
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queues["push"] = Queue()
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queues["pull"] = Queue()
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server = wrap_socket(socket(AF_INET, SOCK_STREAM))
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server.setblocking(False)
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server.settimeout(1)
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server.connect(("", 6697))
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await queues["hook"].put(test)
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await queues["push"].put(("test", "change", None, True))
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tasks.append(loop.create_task(handle_client(loop, server)))
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tasks.append(loop.create_task(pull(loop, queues)))
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tasks.append(loop.create_task(push(loop, queues)))
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await wait(tasks)
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loop.stop()
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loop = get_event_loop()
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try:
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#loop.create_task(main(loop))
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#server = wrap_socket(socket(AF_INET, SOCK_STREAM))
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server = socket(AF_INET, SOCK_STREAM)
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server.setblocking(False)
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#server.settimeout(1)
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server.bind(("localhost", 10201))
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server.listen(5)
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loop.create_task(run_server(loop, server))
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loop.run_forever()
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finally:
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loop.close()
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#server = wrap_socket(socket(AF_INET, SOCK_STREAM))
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#server.connect(("irc.tilde.chat", 6697))
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#while True:
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# print(server.recv(4096))
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# res = input("> ")
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# server.send(f"{res}\r\n".encode())
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@ -0,0 +1,77 @@
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from abots.helpers import generator, infinitedict
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from gevent.lock import BoundedSemaphore
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from collections import namedtuple
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class AtomicDict(object):
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def __init__(self, *args, **kwargs):
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self._dict = dict()
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self._lock = BoundedSemaphore()
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def __enter__(self):
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self._lock.acquire()
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return self._dict
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def __exit__(self, _type, value, traceback):
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self._lock.release()
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def get_state(meta):
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state = infinitedict()
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with meta as m:
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state = m.get("state")
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assert state is not None, "'state' is missing"
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return state.copy()
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def unsubscribe(meta, listener):
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with meta as m:
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listeners = m.get("listeners")
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assert listener in listeners, f"'{listener}' missing from: {listeners}"
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listeners.remove(listener)
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def subscribe(meta, listener):
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with meta as m:
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listeners = m.get("listeners")
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assert listeners is not None, "'listeners' is missing"
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listeners.append(listener)
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return lambda: unsubscribe(meta, listener)
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@generator
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def dispatch(meta):
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action = (yield)
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with meta as m:
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is_dispatching = m.get("is_dispatching")
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assert is_dispatching is not None, "'is_dispatching' is missing"
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if is_dispatching:
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raise Exception("Reducers cannot dispatch actions")
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try:
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with meta as m:
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m["is_dispatching"] = True
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reducer = m.get("reducer")
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assert reducer is not None, "'reducer' is missing"
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m["state"] = reducer(state, action)
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finally:
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with meta as m:
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m["is_dispatching"] = False
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with meta as m:
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listeners = m.get("listeners")
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assert listeners is not None, "'listeners' is missing"
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for listener in listeners[:]:
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listener()
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def manager(reducer, initial_state=infinitedict()):
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meta = AtomicDict()
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with meta as m:
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m["listeners"] = list()
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m["is_dispatching"] = False
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m["reducer"] = reducer
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m["state"] = initial_state
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state = lambda: get_state(meta)
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return state, dispatch(meta)
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Action = namedtuple("Action", ["type", "payload"])
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#meta, actions = manager(reducer)
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128
taijitu.py
128
taijitu.py
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@ -1,91 +1,55 @@
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from abots.helpers import generator
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from psutil import Process as PSProcess
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from queue import Queue, Empty
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from time import sleep, monotonic as time
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from os import getloadavg
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from collections import deque
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from multiprocessing import cpu_count
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from state_management import Action, manager
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from abots.helpers import generator, coroutine, infinitedict
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from time import monotonic as time
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from gevent import Greenlet, spawn, sleep, joinall
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from gevent.queue import Queue, Empty
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#from queue import Queue, Empty
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actions = dict()
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events = Queue()
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last = time()
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ticks = deque()
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ticks.append(0)
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max_loadavg = float(cpu_count())
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threshold = 15.0
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max_cpu = 25.0
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sleeping = 0.001
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sleepings = list()
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stats = list()
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magic = 0
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step = 0.0001
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max_ticks = 0
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loops = 0
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proc = PSProcess()
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cpu = proc.cpu_percent()
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HOOKS = dict()
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def reducer(state, action):
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if action.name == "ADD":
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state["counter"] = state.get("counter", 0) + action.data
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return state
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def register(func):
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actions[func.__name__] = generator(func)
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#f = generator(func)
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#f.start()
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HOOKS[func.__name__.lower()] = func#f()
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return func
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@register
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def push():
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message = (yield)
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time1 = round(sleeping, 6)
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time2 = round(magic, 6)
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print("push", message, time1, time2, loops, max_ticks, cpu)
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event = "pull", ticks[-1]
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events.put_nowait(event)
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#@coroutine
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def pull(queue):
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while True:
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task = queue.get()
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assert isinstance(task, tuple), f"Expected tuple: {task}"
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assert len(task) == 2, f"Invalid format: {task}"
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hook_name, message = task
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hook = HOOKS.get(hook_name)
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hook(queue, message)
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@generator
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def push(queue):
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task = (yield)
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assert isinstance(task, tuple), f"Expected tuple: {task}"
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assert len(task) == 2, f"Invalid format: {task}"
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queue.put(task)
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@register
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def pull():
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message = (yield)
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time1 = round(sleeping, 6)
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time2 = round(magic, 6)
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print("pull", message, time1, time2, loops, max_ticks, cpu)
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event = "push", ticks[-1]
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events.put_nowait(event)
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def ping(queue, message):
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print(f"PING: {message}")
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task = "pong", message
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queue.put(task)
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seed = "push", ticks[-1]
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events.put_nowait(seed)
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done = time() + 60
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prev_cpu = 0
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prev_loadavg = 0
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while True: #time() < done:
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if time() >= last + 1:
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ticks.append(0)
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last = time()
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loadavg = getloadavg()[0]
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diff_loadavg = loadavg - prev_loadavg
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prev_loadavg = loadavg
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if loadavg >= max_loadavg and diff_loadavg > 0:
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sleeping = sleeping + step * 10
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else:
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cpu = proc.cpu_percent()
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diff_cpu = cpu - prev_cpu
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prev_cpu = cpu
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if cpu >= max_cpu and diff_cpu > 0:
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sleeping = sleeping + step * 10
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elif cpu >= threshold and diff_cpu > 0:
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sleeping = sleeping + step
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elif sleeping - step >= 0 and diff_cpu < 0:
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sleeping = sleeping - step
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@register
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def pong(queue, message):
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print(f"PONG: {message}")
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task = "ping", message
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queue.put(task)
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sleepings.append(sleeping)
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stat = sum(sleepings) / len(sleepings)
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stats.append(stat)
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magic = sum(stats) / len(stats)
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max_ticks = max(ticks)
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loops = loops + 1
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try:
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event = events.get_nowait()
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source, message = event
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action = actions.get(source)
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if action:
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action().send(message)
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except Empty:
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break
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sleep(sleeping)
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ticks[-1] = ticks[-1] + 1
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state, dispatch = manager(reducer)
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queue = Queue()
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yang = push(queue)
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yin = spawn(pull, queue)
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start = lambda: joinall([yin])
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