112 lines
3.4 KiB
Python
112 lines
3.4 KiB
Python
from typing import Callable, Iterable, Optional, Tuple, TextIO, BinaryIO, IO, Union, List
|
|
from os import PathLike
|
|
from threading import RLock, Condition
|
|
|
|
import datetime
|
|
import logging
|
|
import logging.handlers
|
|
import sys
|
|
|
|
_log_handlers: List[logging.Handler] = []
|
|
_log_format = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
|
|
|
|
def init_logging(*,
|
|
level: int = logging.DEBUG,
|
|
output_file: Union[None, str, PathLike] = None,
|
|
output_host: Optional[Tuple[str, int]] = None,
|
|
output_stream: Optional[TextIO] = sys.stdout) -> None:
|
|
"""Set up the logging format and outputs.
|
|
|
|
level: Logging level (DEBUG)
|
|
output_file: File to write to (None)
|
|
output_host: Tuple of host and port that will receive log datagrams
|
|
"""
|
|
global _log_handlers
|
|
|
|
_log_handlers = []
|
|
|
|
if output_file != None:
|
|
# Create a file handler
|
|
file_handler = logging.FileHandler(output_file)
|
|
file_handler.setLevel(level)
|
|
_log_handlers.append(file_handler)
|
|
|
|
if output_host != None:
|
|
dgram_handler = logging.handlers.DatagramHandler(*output_host)
|
|
dgram_handler.setLevel(logging.DEBUG)
|
|
_log_handlers.append(dgram_handler)
|
|
|
|
if output_stream != None:
|
|
console_handler = logging.StreamHandler(output_stream)
|
|
console_handler.setLevel(logging.DEBUG)
|
|
_log_handlers.append(console_handler)
|
|
|
|
# Default log output
|
|
logging.basicConfig(force=True, level=logging.DEBUG, format=_log_format, handlers=_log_handlers)
|
|
|
|
def logger(*path: Iterable[str]) -> logging.Logger:
|
|
logger = logging.getLogger("door_pi_control")
|
|
for p in path:
|
|
logger = logger.getChild(p)
|
|
return logger
|
|
|
|
def now() -> datetime.datetime:
|
|
return datetime.datetime.now()
|
|
|
|
def timestamp() -> str:
|
|
return now().strftime("%Y-%m-%d %H:%M:%S")
|
|
|
|
class Loggable:
|
|
def __init__(self, *path):
|
|
self._logger_path = path
|
|
def _logger(self) -> logging.Logger:
|
|
return logger(*self._logger_path, type(self).__name__)
|
|
|
|
class Event:
|
|
def __init__(self, lock = None):
|
|
self._lock = lock if lock != None else RLock()
|
|
self._condition = Condition(self._lock)
|
|
self._subscribers = {}
|
|
|
|
def acquire(self, *args):
|
|
return self._condition.acquire(*args)
|
|
|
|
def notify(self, *args, **kwargs):
|
|
with self._lock:
|
|
for cv, cb in self._subscribers:
|
|
with cv:
|
|
if cb:
|
|
cb(*args, **kwargs)
|
|
cv.notify()
|
|
self._condition.notify()
|
|
|
|
def notify_all(self):
|
|
with self._lock:
|
|
for cv, cb in self._subscribers:
|
|
with cv:
|
|
if cb:
|
|
cb()
|
|
cv.notify_all()
|
|
self._condition.notify_all()
|
|
|
|
def subscribe(self, cv: Condition, callback: Callable = None):
|
|
with self._lock:
|
|
self._subscribers[cv] = callback
|
|
|
|
def unsubscribe(self, cv: Condition):
|
|
with self._lock:
|
|
if cv in self._subscribers:
|
|
del self._subscribers[cv]
|
|
|
|
def wait(self, timeout=None):
|
|
return self._condition.wait(timeout)
|
|
|
|
def wait_for(self, predicate, timeout=None):
|
|
return self._condition.wait_for(predicate, timeout)
|
|
|
|
def __enter__(self):
|
|
return self._lock.__enter__()
|
|
|
|
def __exit__(self, *args):
|
|
self._lock.__exit__()
|