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@ -22,38 +22,28 @@ var (
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func getPeerStatsOffset(name string) uintptr {
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peerType := reflect.TypeOf(device.Peer{})
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sf, ok := peerType.FieldByName("stats")
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field, ok := peerType.FieldByName(name)
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if !ok {
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panic("no stats field in device.Peer")
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panic("no " + name + " field in device.Peer")
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}
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if sf.Type.Kind() != reflect.Struct {
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panic("stats field is not a struct")
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if s := field.Type.String(); s != "atomic.Int64" && s != "atomic.Uint64" {
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panic("unexpected type " + s + " of field " + name + " in device.Peer")
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}
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base := sf.Offset
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st := sf.Type
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field, ok := st.FieldByName(name)
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if !ok {
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panic("no " + name + " field in device.Peer.stats")
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}
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if field.Type.Kind() != reflect.Int64 && field.Type.Kind() != reflect.Uint64 {
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panic("unexpected kind of " + name + " field in device.Peer.stats")
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}
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return base + field.Offset
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return field.Offset
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}
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// PeerLastHandshakeNano returns the last handshake time in nanoseconds since the
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// unix epoch.
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func PeerLastHandshakeNano(peer *device.Peer) int64 {
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return atomic.LoadInt64((*int64)(unsafe.Add(unsafe.Pointer(peer), offHandshake)))
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return (*atomic.Int64)(unsafe.Add(unsafe.Pointer(peer), offHandshake)).Load()
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}
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// PeerRxBytes returns the number of bytes received from this peer.
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func PeerRxBytes(peer *device.Peer) uint64 {
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return atomic.LoadUint64((*uint64)(unsafe.Add(unsafe.Pointer(peer), offRxBytes)))
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return (*atomic.Uint64)(unsafe.Add(unsafe.Pointer(peer), offRxBytes)).Load()
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}
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// PeerTxBytes returns the number of bytes sent to this peer.
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func PeerTxBytes(peer *device.Peer) uint64 {
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return atomic.LoadUint64((*uint64)(unsafe.Add(unsafe.Pointer(peer), offTxBytes)))
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return (*atomic.Uint64)(unsafe.Add(unsafe.Pointer(peer), offTxBytes)).Load()
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}
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Brad Fitzpatrick
2 years ago
committed by