64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
# tractor: structured concurrent "actors".
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# Copyright 2018-eternity Tyler Goodlet.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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Per process state
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"""
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from typing import (
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Optional,
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Any,
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)
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import trio
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from ._exceptions import NoRuntime
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_current_actor: Optional['Actor'] = None # type: ignore # noqa
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_runtime_vars: dict[str, Any] = {
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'_debug_mode': False,
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'_is_root': False,
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'_root_mailbox': (None, None)
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}
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def current_actor(err_on_no_runtime: bool = True) -> 'Actor': # type: ignore # noqa
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"""Get the process-local actor instance.
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"""
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if _current_actor is None and err_on_no_runtime:
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raise NoRuntime("No local actor has been initialized yet")
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return _current_actor
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def is_main_process() -> bool:
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"""Bool determining if this actor is running in the top-most process.
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"""
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import multiprocessing as mp
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return mp.current_process().name == 'MainProcess'
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def debug_mode() -> bool:
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"""Bool determining if "debug mode" is on which enables
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remote subactor pdb entry on crashes.
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"""
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return bool(_runtime_vars['_debug_mode'])
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def is_root_process() -> bool:
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return _runtime_vars['_is_root']
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