fingerprintd

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Jorijn van der Graaf 0809b95a48 An operation ends when the client says so, not when its status says done fprintd's contract: a status with done=true means no more status is coming, not that the operation is over. The client still calls EnrollStop or VerifyStop, and until it does the device is busy with that operation. Clearing the op on done made every stock client's Stop fail with NoActionInProgress -- seen on the first fprintd-enroll against this daemon, which otherwise succeeded through all ten stages. Clearing it from the worker was also a race: a client that cancels and immediately starts a new operation would have had that new operation cleared by the old one's completion event. The worker no longer touches the op state at all; only Stop and Release do, on the main thread.	2026-09-02 22:19:08 +02:00
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main.cpp	An operation ends when the client says so, not when its status says done	2026-09-02 22:19:08 +02:00

Jorijn van der Graaf 0809b95a48 An operation ends when the client says so, not when its status says done

fprintd's contract: a status with done=true means no more status is coming,
not that the operation is over. The client still calls EnrollStop or
VerifyStop, and until it does the device is busy with that operation. Clearing
the op on done made every stock client's Stop fail with NoActionInProgress --
seen on the first fprintd-enroll against this daemon, which otherwise succeeded
through all ten stages.

Clearing it from the worker was also a race: a client that cancels and
immediately starts a new operation would have had that new operation cleared by
the old one's completion event. The worker no longer touches the op state at
all; only Stop and Release do, on the main thread.

2026-09-02 22:19:08 +02:00

main.cpp

An operation ends when the client says so, not when its status says done

2026-09-02 22:19:08 +02:00