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package smux
type shaperHeap []writeRequest
func (h shaperHeap) Len() int { return len(h) }
func (h shaperHeap) Less(i, j int) bool { return h[i].prio < h[j].prio }
func (h shaperHeap) Swap(i, j int) { h[i], h[j] = h[j], h[i] }
func (h *shaperHeap) Push(x interface{}) { *h = append(*h, x.(writeRequest)) }
func (h *shaperHeap) Pop() interface{} {
old := *h
n := len(old)
x := old[n-1]
*h = old[0 : n-1]
return x
}
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