commit c16a1338322677b9ee083f1976532bbfcc45cf21 · veryroundbird.house/core

+6 -6
knotserver/events.go
···

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       func (h *Handle) Events(w http.ResponseWriter, r *http.Request) {

     

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       	l := h.l.With("handler", "OpLog")

     

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       -
       	l.Info("received new connection")

     

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       +
       	l.Debug("received new connection")

     

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       	conn, err := upgrader.Upgrade(w, r, nil)

     

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       	if err != nil {

     
···

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       		return

     

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       	}

     

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       	defer conn.Close()

     

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       	l.Info("upgraded http to wss")

     

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       	l.Debug("upgraded http to wss")

     

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       	ch := h.n.Subscribe()

     

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       	defer h.n.Unsubscribe(ch)

     
···

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       	cursor := r.URL.Query().Get("cursor")

     

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       	// complete backfill first before going to live data

     

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       -
       	l.Info("going through backfill", "cursor", cursor)

     

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       	l.Debug("going through backfill", "cursor", cursor)

     

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       	if err := h.streamOps(conn, &cursor); err != nil {

     

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       		l.Error("failed to backfill", "err", err)

     

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       		return

     
···

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       		// wait for new data or timeout

     

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       		select {

     

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       		case <-ctx.Done():

     

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       			l.Info("stopping stream: client closed connection")

     

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       +
       			l.Debug("stopping stream: client closed connection")

     

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       			return

     

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       		case <-ch:

     

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       			// we have been notified of new data

     

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       			l.Info("going through live data", "cursor", cursor)

     

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       +
       			l.Debug("going through live data", "cursor", cursor)

     

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       			if err := h.streamOps(conn, &cursor); err != nil {

     

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       				l.Error("failed to stream", "err", err)

     

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       				return

     

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       			}

     

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       		case <-time.After(30 * time.Second):

     

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       			// send a keep-alive

     

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       			l.Info("sent keepalive")

     

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       +
       			l.Debug("sent keepalive")

     

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       			if err = conn.WriteControl(websocket.PingMessage, []byte{}, time.Now().Add(time.Second)); err != nil {

     

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       				l.Error("failed to write control", "err", err)

     

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       			}