279 lines
8.2 KiB
Python
279 lines
8.2 KiB
Python
import random
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import socket
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import time
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from datetime import datetime
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from itertools import zip_longest
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from timeit import default_timer as timer
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from typing import Any
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from typing import Callable
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from typing import Dict
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from typing import Iterable
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from typing import NamedTuple
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from typing import Optional
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from .enums import RouteIPType
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from .enums import RouteStrategy
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__all__ = (
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"ExponentialBackoff",
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"NodeStats",
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"FailingIPBlock",
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"RouteStats",
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"Ping",
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"LavalinkVersion",
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)
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class ExponentialBackoff:
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"""
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The MIT License (MIT)
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Copyright (c) 2015-present Rapptz
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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"""
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def __init__(self, base: int = 1, *, integral: bool = False) -> None:
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self._base = base
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self._exp = 0
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self._max = 10
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self._reset_time = base * 2**11
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self._last_invocation = time.monotonic()
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rand = random.Random()
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rand.seed()
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self._randfunc = rand.randrange if integral else rand.uniform
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def delay(self) -> float:
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invocation = time.monotonic()
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interval = invocation - self._last_invocation
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self._last_invocation = invocation
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if interval > self._reset_time:
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self._exp = 0
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self._exp = min(self._exp + 1, self._max)
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return self._randfunc(0, self._base * 2**self._exp) # type: ignore
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class NodeStats:
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"""The base class for the node stats object.
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Gives critical information on the node, which is updated every minute.
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"""
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__slots__ = (
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"used",
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"free",
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"reservable",
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"allocated",
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"cpu_cores",
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"cpu_system_load",
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"cpu_process_load",
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"players_active",
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"players_total",
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"uptime",
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)
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def __init__(self, data: Dict[str, Any]) -> None:
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memory: dict = data.get("memory", {})
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self.used = memory.get("used")
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self.free = memory.get("free")
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self.reservable = memory.get("reservable")
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self.allocated = memory.get("allocated")
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cpu: dict = data.get("cpu", {})
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self.cpu_cores = cpu.get("cores")
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self.cpu_system_load = cpu.get("systemLoad")
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self.cpu_process_load = cpu.get("lavalinkLoad")
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self.players_active = data.get("playingPlayers")
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self.players_total = data.get("players")
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self.uptime = data.get("uptime")
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def __repr__(self) -> str:
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return f"<Pomice.NodeStats total_players={self.players_total!r} playing_active={self.players_active!r}>"
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class FailingIPBlock:
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"""
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The base class for the failing IP block object from the route planner stats.
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Gives critical information about any failing addresses on the block
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and the time they failed.
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"""
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__slots__ = ("address", "failing_time")
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def __init__(self, data: dict) -> None:
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self.address = data.get("address")
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self.failing_time = datetime.fromtimestamp(
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float(data.get("failingTimestamp", 0)),
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)
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def __repr__(self) -> str:
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return f"<Pomice.FailingIPBlock address={self.address} failing_time={self.failing_time}>"
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class RouteStats:
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"""
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The base class for the route planner stats object.
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Gives critical information about the route planner strategy on the node.
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"""
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__slots__ = (
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"strategy",
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"ip_block_type",
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"ip_block_size",
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"failing_addresses",
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"block_index",
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"address_index",
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)
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def __init__(self, data: Dict[str, Any]) -> None:
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self.strategy = RouteStrategy(data.get("class"))
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details: dict = data.get("details", {})
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ip_block: dict = details.get("ipBlock", {})
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self.ip_block_type = RouteIPType(ip_block.get("type"))
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self.ip_block_size = ip_block.get("size")
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self.failing_addresses = [
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FailingIPBlock(
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data,
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)
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for data in details.get("failingAddresses", [])
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]
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self.block_index = details.get("blockIndex")
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self.address_index = details.get("currentAddressIndex")
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def __repr__(self) -> str:
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return f"<Pomice.RouteStats route_strategy={self.strategy!r} failing_addresses={len(self.failing_addresses)}>"
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class Ping:
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# Thanks to https://github.com/zhengxiaowai/tcping for the nice ping impl
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def __init__(self, host: str, port: int, timeout: int = 5) -> None:
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self.timer = self.Timer()
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self._successed = 0
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self._failed = 0
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self._conn_time = None
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self._host = host
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self._port = port
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self._timeout = timeout
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class Socket:
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def __init__(self, family: int, type_: int, timeout: Optional[float]) -> None:
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s = socket.socket(family, type_)
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s.settimeout(timeout)
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self._s = s
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def connect(self, host: str, port: int) -> None:
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self._s.connect((host, port))
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def shutdown(self) -> None:
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self._s.shutdown(socket.SHUT_RD)
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def close(self) -> None:
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self._s.close()
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class Timer:
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def __init__(self) -> None:
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self._start: float = 0.0
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self._stop: float = 0.0
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def start(self) -> None:
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self._start = timer()
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def stop(self) -> None:
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self._stop = timer()
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def cost(self, funcs: Iterable[Callable], args: Any) -> float:
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self.start()
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for func, arg in zip_longest(funcs, args):
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if arg:
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func(*arg)
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else:
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func()
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self.stop()
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return self._stop - self._start
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def _create_socket(self, family: int, type_: int) -> Socket:
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return self.Socket(family, type_, self._timeout)
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def get_ping(self) -> float:
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s = self._create_socket(socket.AF_INET, socket.SOCK_STREAM)
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cost_time = self.timer.cost(
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(s.connect, s.shutdown),
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((self._host, self._port), None),
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)
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s_runtime = 1000 * (cost_time)
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return s_runtime
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class LavalinkVersion(NamedTuple):
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major: int
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minor: int
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fix: int
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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return (
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(self.major == other.major) and (self.minor == other.minor) and (self.fix == other.fix)
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)
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def __ne__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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return not (self == other)
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def __lt__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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if self.major > other.major:
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return False
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if self.minor > other.minor:
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return False
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if self.fix > other.fix:
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return False
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return True
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def __gt__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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return not (self < other)
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def __le__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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return (self < other) or (self == other)
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def __ge__(self, other: object) -> bool:
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if not isinstance(other, LavalinkVersion):
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return False
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return (self > other) or (self == other)
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