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58e121b933
Switching repos triggers an immediate background fetch by sending on
the goEvery retrigger channel. The send was blocking, but the goEvery
loop only receives between callbacks: while a fetch is in flight, it
waits for that fetch to finish before returning to its select. So a
repo switch that landed while a fetch was in flight would stall the UI
thread for the remainder of the fetch.
Worse, since worker refreshes capture state on the UI thread with a
blocking OnUIThreadAndWaitBackground call, the in-flight fetch's
post-fetch refresh can itself be waiting for the UI thread, turning
that stall into a deadlock cycle:
UI thread: switchTo -> triggerImmediateFetch, blocking send
goEvery loop: waiting for the in-flight fetch to finish
fetch worker: PostFetchRefresh -> RefreshFromWorker, waiting for
the UI thread
Make the send non-blocking, and give the channel a buffer of one so
that a trigger arriving while a fetch is in flight is latched rather
than dropped; that fetch is fetching the previous repo, so we still
need another one after it. The goEvery loop picks the trigger up as
soon as it returns to its select, and concurrent triggers coalesce.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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| .. | ||
| context | ||
| controllers | ||
| filetree | ||
| mergeconflicts | ||
| modes | ||
| patch_exploring | ||
| popup | ||
| presentation | ||
| services/custom_commands | ||
| status | ||
| style | ||
| types | ||
| background.go | ||
| command_log_panel.go | ||
| context.go | ||
| context_config.go | ||
| controllers.go | ||
| dummies.go | ||
| editors.go | ||
| extras_panel.go | ||
| global_handlers.go | ||
| gui.go | ||
| gui_common.go | ||
| gui_driver.go | ||
| information_panel.go | ||
| keybindings.go | ||
| layout.go | ||
| main_panels.go | ||
| menu_panel.go | ||
| options_map.go | ||
| pty.go | ||
| recent_repos_panel.go | ||
| side_panels.go | ||
| side_panels_test.go | ||
| tasks_adapter.go | ||
| test_mode.go | ||
| view_helpers.go | ||
| views.go | ||