mirror of
https://github.com/moby/moby.git
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3f86797d3f
On API v1.52 and newer, the GET /networks/{id} endpoint returns
statistics about the IPAM state for the subnets assigned to the network.
Signed-off-by: Cory Snider <csnider@mirantis.com>
76 lines
1.3 KiB
Go
76 lines
1.3 KiB
Go
package uint128
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import (
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"encoding/binary"
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"math/bits"
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)
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type Uint128 struct{ hi, lo uint64 }
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func From16(b [16]byte) Uint128 {
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return Uint128{
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hi: binary.BigEndian.Uint64(b[:8]),
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lo: binary.BigEndian.Uint64(b[8:]),
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}
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}
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func From(x, y uint64) Uint128 {
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return Uint128{hi: x, lo: y}
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}
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func (x Uint128) Add(y Uint128) Uint128 {
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lo, carry := bits.Add64(x.lo, y.lo, 0)
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hi, _ := bits.Add64(x.hi, y.hi, carry)
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return Uint128{hi: hi, lo: lo}
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}
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func (x Uint128) Sub(y Uint128) Uint128 {
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lo, carry := bits.Sub64(x.lo, y.lo, 0)
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hi, _ := bits.Sub64(x.hi, y.hi, carry)
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return Uint128{hi: hi, lo: lo}
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}
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func (x Uint128) Lsh(n uint) Uint128 {
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if n > 64 {
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return Uint128{hi: x.lo << (n - 64)}
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}
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return Uint128{
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hi: x.hi<<n | x.lo>>(64-n),
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lo: x.lo << n,
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}
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}
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func (x Uint128) Rsh(n uint) Uint128 {
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if n > 64 {
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return Uint128{lo: x.hi >> (n - 64)}
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}
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return Uint128{
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hi: x.hi >> n,
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lo: x.lo>>n | x.hi<<(64-n),
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}
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}
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func (x Uint128) And(y Uint128) Uint128 {
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return Uint128{hi: x.hi & y.hi, lo: x.lo & y.lo}
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}
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func (x Uint128) Not() Uint128 {
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return Uint128{hi: ^x.hi, lo: ^x.lo}
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}
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func (x Uint128) Fill16(a *[16]byte) {
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binary.BigEndian.PutUint64(a[:8], x.hi)
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binary.BigEndian.PutUint64(a[8:], x.lo)
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}
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func (x Uint128) Uint64() uint64 {
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return x.lo
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}
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func (x Uint128) Uint64Sat() uint64 {
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if x.hi != 0 {
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return ^uint64(0)
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}
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return x.lo
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}
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