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Allow passing timestamp to constructor of uuid7 #174

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Allow passing timestamp to constructor of uuid7 #174

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7091f55
Update __init__.py
daniel347x Sep 12, 2024
e0c5da1
Merge branch 'oittaa:main' into main
daniel347x Oct 2, 2024
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15 changes: 9 additions & 6 deletions src/uuid6/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,7 @@ def uuid6(node: Optional[int] = None, clock_seq: Optional[int] = None) -> UUID:
return UUID(int=uuid_int, version=6)


def uuid7() -> UUID:
def uuid7(at_ts_ms = None) -> UUID:
r"""UUID version 7 features a time-ordered value field derived from the
widely implemented and well known Unix Epoch timestamp source, the
number of milliseconds since midnight 1 Jan 1970 UTC, leap seconds
Expand All @@ -137,11 +137,14 @@ def uuid7() -> UUID:

global _last_v7_timestamp

nanoseconds = time.time_ns()
timestamp_ms = nanoseconds // 10**6
if _last_v7_timestamp is not None and timestamp_ms <= _last_v7_timestamp:
timestamp_ms = _last_v7_timestamp + 1
_last_v7_timestamp = timestamp_ms
if at_ts_ms is None:
nanoseconds = time.time_ns()
timestamp_ms = nanoseconds // 10**6
if _last_v7_timestamp is not None and timestamp_ms <= _last_v7_timestamp:
timestamp_ms = _last_v7_timestamp + 1
_last_v7_timestamp = timestamp_ms
else:
timestamp_ms = at_ts_ms
uuid_int = (timestamp_ms & 0xFFFFFFFFFFFF) << 80
uuid_int |= secrets.randbits(76)
return UUID(int=uuid_int, version=7)
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