sean yu 03900dcb1b Add darwin runtime device observer support (#670) ...

* wip

* wip

* Organize

* Remove unnecessary change in camera_darwin.go filtering

* wip

* Make observer stop safe during startup

* wip IsAvailable impl

* Fix non-darwin builds

* Lock bg loop to main thread and add comment

* Remove fmt prints

* Simplify isAvailable; Add timeout for Read darwin

* Match comment with code

* Change to singleton pattern; Add clearer safer state machine states; Change language from Stop to Destroy; Add new error for when observer is unavailable;

* Add stubs for linux

* Move cancel() up so its not dead code sometimes

* Add stubs for Windows too

* Remove StopObserver usage

* Add camera tests

* Add device observer tests

* Fix multiple destroy calls bug; Call setup in start

* Improve isAvailable

* Improve string handling in device observer c

* Add error handling in example

* Add comment about setup vs start

* Rename and organize device observer darwin

* Explicitly case initial state for setup

* Fix potential destroy goroutine leak; Use only modern build tag; Return err not nil for stubs; Improve comments

* Close startDone channel on device observer stop not wait

2025-12-28 13:33:36 -08:00

..

error.go

Add darwin runtime device observer support (#670)

2025-12-28 13:33:36 -08:00