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docs: align poller comments with freshness rules

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lda
2026-09-09 20:09:27 +07:00 Verified
parent ac560f0212
commit 34e026a8f2
1 changed files with 4 additions and 7 deletions
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src/wf_scheduling/poll.py
+4 -7
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@@ -717,13 +717,10 @@ class Scheduler:
# Fresh read per schedule: the tick lists schedules up front while # Fresh read per schedule: the tick lists schedules up front while
# same-process administration may commit an edit, pause, resume, or # same-process administration may commit an edit, pause, resume, or
# delete mid-tick. All admission decisions below (policies, # delete mid-tick. All admission decisions below (policies,
# revision, flags) use this fresh copy, never the listing # revision, flags, and managed trigger source) use this fresh copy,
# snapshot. Two narrow residuals remain: calendar iteration uses # never the listing snapshot. A definition edit that races the
# the tick-start occurrence source (a trigger edit takes effect # final admission recheck is rejected as schedule-changed, so stale
# on the next tick), and an admission decision already in flight # terms cannot create a duplicate or replay.
# cannot observe a concurrent edit — admission stays idempotent
# per (schedule, instant), so the worst case is one run admitted
# under just-superseded terms, never a duplicate or replay.
try: try:
sched = self.schedule_store.get_schedule(sched.id) sched = self.schedule_store.get_schedule(sched.id)
except KeyError: except KeyError: