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[bugfix] fix possible mutex lockup during streaming code (#2633)

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* rewrite Stream{} to use much less mutex locking, update related code

* use new context for the stream context

* ensure stream gets closed on return of writeTo / readFrom WSConn()

* ensure stream write timeout gets cancelled

* remove embedded context type from Stream{}, reformat log messages for consistency

* use c.Request.Context() for context passed into Stream().Open()

* only return 1 boolean, fix tests to expect multiple stream types in messages

* changes to ping logic

* further improved ping logic

* don't export unused function types, update message sending to only include relevant stream type

* ensure stream gets closed 🤦

* update to error log on failed json marshal (instead of panic)

* inverse websocket read error checking to _ignore_ expected close errors
This commit is contained in:
kim 2024-02-20 18:07:49 +00:00 • committed by GitHub
commit 291e180990
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14 changed files with 535 additions and 451 deletions
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18
internal/processing/workers/surfacetimeline.go
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@ -348,11 +348,7 @@ func (s *surface) timelineStatus(
err = gtserror.Newf("error converting status %s to frontend representation: %w", status.ID, err)
return true, err
}
if err := s.stream.Update(apiStatus, account, []string{streamType}); err != nil {
err = gtserror.Newf("error streaming update for status %s: %w", status.ID, err)
return true, err
}
s.stream.Update(ctx, account, apiStatus, streamType)
return true, nil
}
@ -363,12 +359,11 @@ func (s *surface) deleteStatusFromTimelines(ctx context.Context, statusID string
if err := s.state.Timelines.Home.WipeItemFromAllTimelines(ctx, statusID); err != nil {
return err
}
if err := s.state.Timelines.List.WipeItemFromAllTimelines(ctx, statusID); err != nil {
return err
}
return s.stream.Delete(statusID)
s.stream.Delete(ctx, statusID)
return nil
}
// invalidateStatusFromTimelines does cache invalidation on the given status by
@ -555,11 +550,6 @@ func (s *surface) timelineStreamStatusUpdate(
err = gtserror.Newf("error converting status %s to frontend representation: %w", status.ID, err)
return err
}
if err := s.stream.StatusUpdate(apiStatus, account, []string{streamType}); err != nil {
err = gtserror.Newf("error streaming update for status %s: %w", status.ID, err)
return err
}
s.stream.StatusUpdate(ctx, account, apiStatus, streamType)
return nil
}