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from __future__ import annotations
from enum import Enum, auto
class RunState(Enum):
"""
Used to track the running state of schedulers and workers.
Values:
* ``starting``: not running yet, but in the process of starting
* ``started``: running
* ``stopping``: still running but in the process of shutting down
* ``stopped``: not running
"""
starting = auto()
started = auto()
stopping = auto()
stopped = auto()
class JobOutcome(Enum):
"""
Used to indicate how the execution of a job ended.
Values:
* ``success``: the job completed successfully
* ``error``: the job raised an exception
* ``missed_start_deadline``: the job's execution was delayed enough for it to miss
its deadline
* ``cancelled``: the job's execution was cancelled
"""
success = auto()
error = auto()
missed_start_deadline = auto()
cancelled = auto()
class ConflictPolicy(Enum):
"""
Used to indicate what to do when trying to add a schedule whose ID conflicts with an
existing schedule.
Values:
* ``replace``: replace the existing schedule with a new one
* ``do_nothing``: keep the existing schedule as-is and drop the new schedule
* ``exception``: raise an exception if a conflict is detected
"""
replace = auto()
do_nothing = auto()
exception = auto()
class CoalescePolicy(Enum):
"""
Used to indicate how to queue jobs for a schedule that has accumulated multiple
run times since the last scheduler iteration.
Values:
* ``earliest``: run once, with the earliest fire time
* ``latest``: run once, with the latest fire time
* ``all``: submit one job for every accumulated fire time
"""
earliest = auto()
latest = auto()
all = auto()
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