902133edd3
- 8 DB models (services, incidents, monitors, subscribers, etc.) - Full CRUD API for services, incidents, monitors - Public status page with live data - Incident detail page with timeline - API key authentication - Uptime monitoring scheduler - 13 tests passing - TECHNICAL_DESIGN.md with full spec
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
from __future__ import annotations
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import time
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__all__ = ["Deadline"]
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class Deadline:
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"""
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Manage timeouts across multiple steps.
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Args:
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timeout: Time available in seconds or :obj:`None` if there is no limit.
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"""
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def __init__(self, timeout: float | None) -> None:
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self.deadline: float | None
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if timeout is None:
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self.deadline = None
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else:
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self.deadline = time.monotonic() + timeout
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def timeout(self, *, raise_if_elapsed: bool = True) -> float | None:
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"""
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Calculate a timeout from a deadline.
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Args:
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raise_if_elapsed: Whether to raise :exc:`TimeoutError`
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if the deadline lapsed.
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Raises:
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TimeoutError: If the deadline lapsed.
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Returns:
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Time left in seconds or :obj:`None` if there is no limit.
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"""
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if self.deadline is None:
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return None
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timeout = self.deadline - time.monotonic()
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if raise_if_elapsed and timeout <= 0:
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raise TimeoutError("timed out")
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return timeout
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