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https://github.com/luxfi/vms.git
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zeekay
58d58f0072
Remove node imports from vms/components/chain/state.go and add gas component. Use standalone luxfi packages for cache, math, and constants instead of node packages.
71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
// Copyright (C) 2019-2025, Lux Industries, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package gas
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import "github.com/luxfi/math"
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const (
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Bandwidth Dimension = iota
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DBRead
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DBWrite // includes deletes
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Compute
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NumDimensions = iota
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)
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type (
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Dimension uint
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Dimensions [NumDimensions]uint64
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)
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// Add returns d + sum(os...).
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//
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// If overflow occurs, an error is returned.
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func (d Dimensions) Add(os ...*Dimensions) (Dimensions, error) {
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var err error
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for _, o := range os {
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for i := range o {
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d[i], err = math.Add(d[i], o[i])
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if err != nil {
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return d, err
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}
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}
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}
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return d, nil
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}
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// Sub returns d - sum(os...).
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//
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// If underflow occurs, an error is returned.
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func (d Dimensions) Sub(os ...*Dimensions) (Dimensions, error) {
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var err error
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for _, o := range os {
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for i := range o {
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d[i], err = math.Sub(d[i], o[i])
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if err != nil {
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return d, err
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}
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}
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}
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return d, nil
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}
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// ToGas returns d ยท weights.
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//
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// If overflow occurs, an error is returned.
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func (d Dimensions) ToGas(weights Dimensions) (Gas, error) {
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var res uint64
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for i := range d {
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v, err := math.Mul(d[i], weights[i])
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if err != nil {
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return 0, err
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}
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res, err = math.Add(res, v)
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if err != nil {
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return 0, err
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}
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}
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return Gas(res), nil
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}
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