Jorijn van der Graaf
f94d895701
:Process makes sure no child outlives what it was started for. SIGKILL to the direct child alone would leave the Playwright server and Chromium running after a timeout, and every pass running after a SIGKILLed driver: - every child is forked by one long-lived spawner thread, the reaper's registry locked across fork, so PR_SET_PDEATHSIG holds and a fast exit is never reaped unregistered; one reaper thread owns waitpid(-1); - the child gets an empty signal mask, SIGPIPE and SIGXFSZ at their defaults, and nothing but its three streams (close_range); the driver ignores SIGPIPE and takes SIGINT/SIGTERM/SIGHUP on a thread of its own; - `crafter-review __supervise <argv>` is a pass's subreaper. It kills the pass's whole tree, Chromium's detached process group included, when the target exits, on SIGTERM, and when the driver dies, by its death signal. - Run() captures both outputs without the deadlock. The shared state the detached threads wait on is never destroyed: a condition variable destroyed under a waiter makes glibc's pthread_cond_destroy, and with it exit(), wait forever. :Platform: the Flatpak sandbox decided once, the host's XDG directories restored there; WriteAtomic and LockedUpdate, the read-modify-write of the board, ledger, memory.json and unit-state.json every driver on the machine shares, under flock(2) on the same side files; /proc readers; and the identity other drivers can check: natively pid and start time, in the sandbox the instance's host pid from bwrapinfo.json with /proc/1's start time. The lifetime lock is created under a temporary name and renamed into place, so no prober ever finds it unlocked while its driver lives. Tests: Process (the three ways a pass's tree must die, return codes, a missing program, capture, timeouts, fds, the child's signal state), Platform (atomic writes, LockedUpdate against a damaged file, two writers, and another process holding flock on the side file; /proc on a fake tree; both identities; the lifetime lock; the XDG restore). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
13 lines
314 B
C++
13 lines
314 B
C++
// SPDX-License-Identifier: AGPL-3.0-only
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// SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
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export module Crafter.Review;
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export import :Unicode;
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export import :Json;
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export import :Text;
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export import :Crypto;
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export import :Platform;
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export import :Process;
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export import :Core;
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export import :Driver;
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