in core/src/main/java/com/github/shadowsocks/bg/TrafficMonitor.kt [60:85]
fun requestUpdate(): Pair<TrafficStats, Boolean> {
val now = SystemClock.elapsedRealtime()
val delta = now - timestampLast
timestampLast = now
var updated = false
if (delta != 0L) {
if (dirty) {
out = current.copy().apply {
txRate = (txTotal - out.txTotal) * 1000 / delta
rxRate = (rxTotal - out.rxTotal) * 1000 / delta
}
dirty = false
updated = true
} else {
if (out.txRate != 0L) {
out.txRate = 0
updated = true
}
if (out.rxRate != 0L) {
out.rxRate = 0
updated = true
}
}
}
return Pair(out, updated)
}