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header.go
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/
header.go
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/*
* Copyright (C) 2018 The ZeepinChain Authors
* This file is part of The ZeepinChain library.
*
* The ZeepinChain is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ZeepinChain 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The ZeepinChain. If not, see <http://www.gnu.org/licenses/>.
*/
package embed
import (
"github.com/zeepin/ZeepinChain/core/types"
vm "github.com/zeepin/ZeepinChain/embed/simulator"
"github.com/zeepin/ZeepinChain/errors"
)
// HeaderGetHash put header's hash to vm stack
func HeaderGetHash(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetHash] Wrong type!")
}
h := data.Hash()
vm.PushData(engine, h.ToArray())
return nil
}
// HeaderGetVersion put header's version to vm stack
func HeaderGetVersion(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetVersion] Wrong type!")
}
vm.PushData(engine, data.Version)
return nil
}
// HeaderGetPrevHash put header's prevblockhash to vm stack
func HeaderGetPrevHash(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetPrevHash] Wrong type!")
}
vm.PushData(engine, data.PrevBlockHash.ToArray())
return nil
}
// HeaderGetMerkleRoot put header's merkleroot to vm stack
func HeaderGetMerkleRoot(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetMerkleRoot] Wrong type!")
}
vm.PushData(engine, data.TransactionsRoot.ToArray())
return nil
}
// HeaderGetIndex put header's height to vm stack
func HeaderGetIndex(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetIndex] Wrong type!")
}
vm.PushData(engine, data.Height)
return nil
}
// HeaderGetTimestamp put header's timestamp to vm stack
func HeaderGetTimestamp(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetTimestamp] Wrong type!")
}
vm.PushData(engine, data.Timestamp)
return nil
}
// HeaderGetConsensusData put header's consensus data to vm stack
func HeaderGetConsensusData(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetConsensusData] Wrong type!")
}
vm.PushData(engine, data.ConsensusData)
return nil
}
// HeaderGetNextConsensus put header's consensus to vm stack
func HeaderGetNextConsensus(service *EmbeddedService, engine *vm.ExecutionEngine) error {
d, err := vm.PopInteropInterface(engine)
if err != nil {
return err
}
var data *types.Header
if b, ok := d.(*types.Block); ok {
data = b.Header
} else if h, ok := d.(*types.Header); ok {
data = h
} else {
return errors.NewErr("[HeaderGetNextConsensus] Wrong type!")
}
vm.PushData(engine, data.NextBookkeeper[:])
return nil
}