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Krzysztof kuhy Rudnicki
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A live claim was not "input is locked": it is published before the window grabs, and leetcode-guard's study mode releases the grab while the claim lives on. leisure-watch (contract C2) must pause shadow billing only while a grab is really held. - Claim.grab_held (always serialised; missing key from an old writer reads as grab != "none"). Arbitration still uses the declared grab only. - Arbiter.set_grab_held(held=) rewrites the claim and holder copies in place through the owner's flocked fd (O_APPEND cleared, pwrite at 0, padded so the file never shrinks) -- same inode, flock liveness untouched. Never raises. - Set true only after grab_set/grab_set_global succeeded; RecoveryLoop reports each tick's real answer (a stolen, un-retaken grab reads false). LockWindow.report_grab_held(held=) is the hook for deliberate releases. - gatelock.held_grabs(claims_dir=None): live claims with grab_held and a real grab. Root callers pass /run/user/1000/gatelock/claims. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Dsh4Znwh2KnC7q6vbGpX1N
141 lines
3.5 KiB
Python
141 lines
3.5 KiB
Python
# Copyright (c) 2026 Krzysztof Rudnicki
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"""Shared lock-window and HMAC log-integrity backend for blocking-overlay apps.
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Used by ``screen-locker``, ``diet-guard`` and ``wake-alarm``, which all need
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the same thing: cover every monitor the user can actually see, take the input
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grab, and stay up until their own condition is met.
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"""
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from __future__ import annotations
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from gatelock._arbiter import (
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RANK_DIET_GUARD,
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RANK_SCREEN_LOCKER,
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RANK_WAKE_ALARM,
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Arbiter,
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)
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from gatelock._claimfile import held_grabs
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from gatelock._claims import ArbiterVerdict, Claim, default_runtime_dir, grab_strength
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from gatelock._config import GrabPolicy, LockConfig, SpaceStep, TypeRole
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from gatelock._detect import OutputChangeDetector
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from gatelock._escape import (
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EscapeDraft,
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EscapeHistory,
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EscapePolicy,
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EscapeTracker,
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)
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from gatelock._fitcheck import FitResult, measure_fit, report_fit
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from gatelock._guards import assert_not_under_pytest, wait_for_x_server
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from gatelock._hooks import LockWindowHooks
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from gatelock._keyboard import bind_activate, bind_cancel, escape_text_tab_trap
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from gatelock._outputs import (
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Output,
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OutputEnumerator,
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OutputRect,
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OutputScan,
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enumerate_outputs,
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)
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from gatelock._queue import (
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QUEUE_DEADLINE_SECONDS,
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QUEUE_HEARTBEAT_SECONDS,
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QUEUE_POLL_SECONDS,
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QueueResult,
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Timebase,
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stronger_claims,
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wait_for_turn,
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)
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from gatelock._randr import RandrBackend
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from gatelock._recovery import RecoveryLoop, RecoveryReport
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from gatelock._root import GateRoot
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from gatelock._scrollable import ScrollableSurface
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from gatelock._surfaces import (
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SurfaceBuilder,
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SurfaceDelta,
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SurfaceInfo,
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SurfaceSet,
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mirror_text_widgets,
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needs_backdrop_root,
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)
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from gatelock._theme import LockPalette, LockSpacing, LockTypography
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from gatelock._vt import disable_vt_switching, restore_vt_switching
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from gatelock._window import LockWindow
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from gatelock._xrandr import parse_xrandr_query
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from gatelock.widget_group import WidgetGroup
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from gatelock.widgets import (
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DEFAULT_WRAP,
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ButtonStyle,
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ButtonVariant,
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RowStyle,
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heading,
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make_button,
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row,
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)
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__all__ = [
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"DEFAULT_WRAP",
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"QUEUE_DEADLINE_SECONDS",
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"QUEUE_HEARTBEAT_SECONDS",
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"QUEUE_POLL_SECONDS",
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"RANK_DIET_GUARD",
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"RANK_SCREEN_LOCKER",
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"RANK_WAKE_ALARM",
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"Arbiter",
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"ArbiterVerdict",
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"ButtonStyle",
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"ButtonVariant",
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"Claim",
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"EscapeDraft",
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"EscapeHistory",
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"EscapePolicy",
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"EscapeTracker",
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"FitResult",
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"GateRoot",
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"GrabPolicy",
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"LockConfig",
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"LockPalette",
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"LockSpacing",
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"LockTypography",
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"LockWindow",
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"LockWindowHooks",
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"Output",
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"OutputChangeDetector",
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"OutputEnumerator",
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"OutputRect",
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"OutputScan",
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"QueueResult",
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"RandrBackend",
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"RecoveryLoop",
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"RecoveryReport",
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"RowStyle",
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"ScrollableSurface",
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"SpaceStep",
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"SurfaceBuilder",
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"SurfaceDelta",
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"SurfaceInfo",
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"SurfaceSet",
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"Timebase",
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"TypeRole",
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"WidgetGroup",
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"assert_not_under_pytest",
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"bind_activate",
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"bind_cancel",
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"default_runtime_dir",
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"disable_vt_switching",
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"enumerate_outputs",
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"escape_text_tab_trap",
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"grab_strength",
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"heading",
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"held_grabs",
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"make_button",
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"measure_fit",
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"mirror_text_widgets",
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"needs_backdrop_root",
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"parse_xrandr_query",
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"report_fit",
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"restore_vt_switching",
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"row",
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"stronger_claims",
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"wait_for_turn",
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"wait_for_x_server",
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]
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