Files

33 lines
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Python

"""Fixed-size rolling event log for support diagnostics."""
from __future__ import annotations
import threading
import time
from collections import deque
P_MAX_SIZE = 50
p_lock = threading.Lock()
p_buffer: deque[dict] = deque(maxlen=P_MAX_SIZE)
def record(label: str, **meta: str | int | float | None) -> None:
"""Append an entry. Oldest drops when full."""
with p_lock:
p_buffer.append({
"l": label,
"t": time.time(),
**{k: v for k, v in meta.items() if v is not None},
})
def snapshot() -> list[dict]:
"""Return a copy of the current buffer, oldest first."""
with p_lock:
return list(p_buffer)
def clear() -> None:
with p_lock:
p_buffer.clear()