Merge remote-tracking branch 'origin/replay'

consensus/common.go

@@ -0,0 +1,15 @@
+package consensus
+
+import (
+	"github.com/tendermint/go-events"
+)
+
+// NOTE: this is blocking
+func subscribeToEvent(evsw *events.EventSwitch, receiver, eventID string, chanCap int) chan interface{} {
+	// listen for new round
+	ch := make(chan interface{}, chanCap)
+	evsw.AddListenerForEvent(receiver, eventID, func(data events.EventData) {
+		ch <- data
+	})
+	return ch
+}