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Output thread IDs depending on process pid #205

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Merged
vmarkovtsev merged 1 commit into from
May 26, 2025
Merged

Output thread IDs depending on process pid #205

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12 changes: 11 additions & 1 deletion flogging/flogging.py
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Original file line number Diff line number Diff line change
Expand Up @@ -95,9 +95,17 @@ def format_datetime(dt: datetime.datetime):
return dt.strftime("%Y-%m-%dT%k:%M:%S.%f000") + tzstr


_pid: int = os.getpid()


def _change_pid():
global _pid
_pid = os.getpid()


def reduce_thread_id(thread_id: int) -> str:
"""Make a shorter thread identifier by hashing the original."""
return xxhash.xxh32(thread_id.to_bytes(8, "little")).hexdigest()[:4]
return xxhash.xxh32((thread_id ^ _pid).to_bytes(8, "little")).hexdigest()[:4]


def repr_array(arr: ndarray) -> str:
Expand Down Expand Up @@ -324,6 +332,8 @@ def ensure_utf8_stream(stream):
if not allow_trailing_dot:
handler.emit = check_trailing_dot(handler.emit)

os.register_at_fork(after_in_child=_change_pid)


def set_context(context):
"""Assign the logging context - an abstract object - to the current thread."""
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