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# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import asyncio
import functools
import typing
from typing import Callable
from typing import Coroutine
from typing import TypeVar
from typing import Any
# =====
_AtomicF = TypeVar("_AtomicF", bound=Callable[..., Any])
def atomic(method: _AtomicF) -> _AtomicF:
@functools.wraps(method)
async def wrapper(*args: Any, **kwargs: Any) -> Any:
return (await asyncio.shield(method(*args, **kwargs)))
return typing.cast(_AtomicF, wrapper)
def tasked(method: Callable[..., Any]) -> Callable[..., asyncio.Task]:
@functools.wraps(method)
async def wrapper(*args: Any, **kwargs: Any) -> asyncio.Task:
return create_short_task(method(*args, **kwargs))
return typing.cast(Callable[..., asyncio.Task], wrapper)
_ATTR_SHORT_TASK = "_aiotools_short_task"
def create_short_task(coro: Coroutine) -> asyncio.Task:
task = asyncio.create_task(coro)
setattr(task, _ATTR_SHORT_TASK, True)
return task
async def gather_short_tasks() -> None:
await asyncio.gather(*[
task
for task in asyncio.Task.all_tasks()
if getattr(task, _ATTR_SHORT_TASK, False)
])
_RetvalT = TypeVar("_RetvalT")
async def run_async(method: Callable[..., _RetvalT], *args: Any) -> _RetvalT:
return (await asyncio.get_running_loop().run_in_executor(None, method, *args))
def run_sync(coro: Coroutine[Any, Any, _RetvalT]) -> _RetvalT:
return asyncio.get_event_loop().run_until_complete(coro)
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