iOS: pump_events / run_on_demand + ios_application_main bootstrap#1
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Jasper-Bekkers wants to merge 3 commits into
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iOS: pump_events / run_on_demand + ios_application_main bootstrap#1Jasper-Bekkers wants to merge 3 commits into
Jasper-Bekkers wants to merge 3 commits into
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SDL-style iOS event pump so winit can yield control on iOS: main is owned by ios_application_main which starts UIApplicationMain and runs the user entry as a deferred run-loop callback; pump_events/run_on_demand drive CFRunLoopRunInMode slices, reusing the existing control-flow observers. Enables the run_on_demand/pump_events modules for ios_platform. Compiles for aarch64-apple-ios; not yet device-tested. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Jasper-Bekkers
marked this pull request as draft
July 11, 2026 14:03
Jasper-Bekkers
marked this pull request as ready for review
July 11, 2026 14:05
Our pump_events port delivers lifecycle events (AboutToWait, …) during the redraw phase, so this warns every frame. It's expected under this model — log at trace so it stays discoverable without spamming (and without feeding in-memory log buffers). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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This PR merges to v0.29.x but iirc evolve used the "for-evolve" branch. |
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iOS event-loop support needed to drive breda/Evolve on device. Based on
v0.29.x(the rev breda/Evolve pin).pump_events+run_on_demandfor iOS (SDL2-style), reusing the existing CFRunLoop observers/state machine; adds a handler-less launch path +install_handler/take_handler+exit_requested.winit::platform::ios::ios_application_main(entry: fn())— ownsmain, callsUIApplicationMain, defers the user entry viaperformSelector:afterDelay:0, then runs nestedCFRunLoopRunInModeslices.screen_frame(not the safe area) so it matches the Metal drawable.Verified:
cargo check --target aarch64-apple-ios --no-default-features --features rwh_06.Seam to tune on-device: the
CFRunLoopRunInModetimeout vs.BeforeWaiting-driven redraw cadence — aResumed-delivery race can leave a launch inactive/black.🤖 Generated with Claude Code