mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-11-10 22:07:03 +01:00
Krzysztof kuhy Rudnicki
c0c51036fc
Several sessions can now share one phone: a lease covers one package (the real screen stays the default scope, so existing callers keep their meaning), and only phone-wide actions take `--whole-phone`, which is capped at 300 s and runs its `--cleanup` commands exactly once on release or, via a detached reaper, on expiry. The serial is always resolved, never the "default" placeholder that let android_ui and phone_deploy lease different keys for the same phone (2026-09-25). Adds status --json, holds and whoami for phone_vd.sh and the raw-adb hook. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012Ajzz98xksbfak8CaunZWC
104 lines
3.2 KiB
Python
104 lines
3.2 KiB
Python
"""Release, status, the ``holds`` check the adb hook asks, and the reaper."""
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from __future__ import annotations
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import time
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from typing import TYPE_CHECKING
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from python_pkg.phone_lease import _cleanup
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from python_pkg.phone_lease.lease import (
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SCREEN,
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WHOLE_PHONE,
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Clock,
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Lease,
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lease_paths,
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locked_update,
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read_leases,
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)
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from python_pkg.phone_lease.owner import owner_id
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if TYPE_CHECKING:
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from collections.abc import Callable
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# Longest the reaper sleeps between looks at the lease file.
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REAP_POLL = 5.0
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def release(
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serial: str, *, scope: str = f"pkg:{SCREEN}", owner: str | None = None
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) -> bool:
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"""Drop ``owner``'s lease on ``scope``, running its cleanup. True if dropped."""
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me = owner_id() if owner is None else owner
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dropped: list[Lease] = []
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def drop(live: list[Lease], _now: float) -> list[Lease]:
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dropped.extend(x for x in live if (x.owner, x.scope) == (me, scope))
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return [x for x in live if x not in dropped]
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locked_update(serial, drop, time.time())
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for lease in dropped:
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_cleanup.run(lease.cleanup)
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return bool(dropped)
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def status_all(serial: str, now: float | None = None) -> list[Lease]:
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"""Every live lease on ``serial`` (read-only: no cleanup runs here)."""
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at = time.time() if now is None else now
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return [x for x in read_leases(lease_paths(serial)[1]) if not x.is_expired(at)]
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def status(
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serial: str, now: float | None = None, *, scope: str = f"pkg:{SCREEN}"
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) -> Lease | None:
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"""The live lease on ``scope``, or None when free."""
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return next((x for x in status_all(serial, now) if x.scope == scope), None)
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def holds(
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serial: str, owner: str, scope: str = f"pkg:{SCREEN}", now: float | None = None
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) -> bool:
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"""Whether ``owner`` may act on ``scope`` right now.
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True when it holds that scope or the whole phone. This is the question
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the raw-adb hook asks before letting an ``input``/``am`` through.
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"""
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return any(
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x.owner == owner and x.scope in {scope, WHOLE_PHONE}
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for x in status_all(serial, now)
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)
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def reap(
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serial: str,
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owner: str,
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scope: str,
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*,
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clock: Clock | None = None,
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alive: Callable[[], bool] = lambda: True,
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) -> bool:
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"""Wait until ``owner``'s lease on ``scope`` ends; run its cleanup if it expired.
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Refreshes push the expiry out, so this re-reads the file after every
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sleep. Returns True when it ran the cleanup, False when the holder
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released first (``release`` already ran it) or ``alive`` says stop.
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"""
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clock = clock or Clock()
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while alive():
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lease = next(
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(
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x
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for x in read_leases(lease_paths(serial)[1])
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if (x.owner, x.scope) == (owner, scope)
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),
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None,
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)
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if lease is None:
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return False
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if lease.is_expired(clock.now()):
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# locked_update drops expired leases and runs their cleanup itself.
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locked_update(serial, lambda live, _now: live, clock.now())
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return True
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# Wake at least every few seconds so a released lease frees the reaper.
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clock.sleep(min(REAP_POLL, max(0.5, lease.expires - clock.now())))
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return False
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