Archived
80 lines
2.8 KiB
Python
80 lines
2.8 KiB
Python
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from __future__ import annotations
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import threading
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from contextlib import contextmanager
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from pathlib import Path
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from sqlite3 import Connection
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from time import monotonic
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from .accounts import AccountsMixin
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from .domains import DomainsMixin
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from .rate_limit import RateLimitCleanupMixin
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from .records import RecordsEventsMixin
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from .scheduler import SchedulerMixin
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from .schema import connect_database, initialize_schema
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class DdnsStore(AccountsMixin, DomainsMixin, RecordsEventsMixin, RateLimitCleanupMixin, SchedulerMixin):
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def __init__(self, database_path: Path) -> None:
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self.database_path = database_path
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self._connections = threading.local()
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self._connection_lock = threading.Lock()
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self._tracked_connections: list[Connection] = []
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self._closed_connection_ids: set[int] = set()
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self._rate_limit_prune_lock = threading.Lock()
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self._rate_limit_lock = threading.Lock()
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self._rate_limit_buckets: dict[str, dict[str, float | int]] = {}
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self._rate_limit_dirty_counts: dict[tuple[str, int], int] = {}
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self._last_rate_limit_flush = monotonic()
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self._last_rate_limit_prune_window = -1
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self.database_path.parent.mkdir(parents=True, exist_ok=True)
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self._init_db()
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@contextmanager
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def connect(self):
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conn = self._thread_connection()
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try:
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yield conn
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conn.commit()
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except Exception:
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conn.rollback()
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raise
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def _init_db(self) -> None:
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with self.connect() as conn:
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initialize_schema(conn)
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def optimize(self) -> None:
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with self.connect() as conn:
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conn.execute("PRAGMA optimize")
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def checkpoint_wal(self) -> None:
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if str(self.database_path) == ":memory:":
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return
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with self.connect() as conn:
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conn.execute("PRAGMA wal_checkpoint(PASSIVE)")
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def _thread_connection(self) -> Connection:
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conn = getattr(self._connections, "conn", None)
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if conn is None or id(conn) in self._closed_connection_ids:
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conn = connect_database(self.database_path)
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self._connections.conn = conn
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with self._connection_lock:
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self._tracked_connections.append(conn)
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self._closed_connection_ids.discard(id(conn))
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return conn
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def close_connections(self) -> None:
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with self._connection_lock:
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connections = list(self._tracked_connections)
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self._tracked_connections.clear()
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self._closed_connection_ids.update(id(conn) for conn in connections)
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for conn in connections:
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conn.close()
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if getattr(self._connections, "conn", None) in connections:
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self._connections.conn = None
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close = close_connections
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__all__ = ["DdnsStore"]
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