Method onRead

internal/transport/flowcontrol.go:189–211

onRead is invoked when the application reads the data. It returns the window size to be sent to the peer.

(n uint32)

// onRead is invoked when the application reads the data. It returns the window size
// to be sent to the peer.
func (f *inFlow) onRead(n uint32) uint32 {
	f.mu.Lock()
	defer f.mu.Unlock()

	if f.pendingData == 0 {
		return 0
	}
	f.pendingData -= n
	if n > f.delta {
		n -= f.delta
		f.delta = 0
	} else {
		f.delta -= n
		n = 0
	}
	f.pendingUpdate += n
	if f.pendingUpdate >= f.limit/4 {
		wu := f.pendingUpdate
		f.pendingUpdate = 0
		return wu
	}
	return 0
}