ipld-eth-server/pkg/history/validation_window.go

58 lines
1.6 KiB
Go
Raw Normal View History

// VulcanizeDB
// Copyright © 2018 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package history
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"io"
"text/template"
)
const WindowTemplate = `Validating Blocks
|{{.LowerBound}}|-- Validation Window --|{{.UpperBound}}| ({{.UpperBound}}:HEAD)
`
var ParsedWindowTemplate = *template.Must(template.New("window").Parse(WindowTemplate))
type ValidationWindow struct {
LowerBound int64
UpperBound int64
}
func (window ValidationWindow) Size() int {
return int(window.UpperBound - window.LowerBound)
}
func MakeValidationWindow(blockchain core.BlockChain, windowSize int) ValidationWindow {
upperBound := blockchain.LastBlock().Int64()
lowerBound := upperBound - int64(windowSize)
return ValidationWindow{lowerBound, upperBound}
}
func MakeRange(min, max int64) []int64 {
a := make([]int64, max-min+1)
for i := range a {
a[i] = min + int64(i)
}
return a
}
func (window ValidationWindow) Log(out io.Writer) {
ParsedWindowTemplate.Execute(out, window)
}