plugeth/eth/plugin_hooks.go
2021-06-28 12:11:38 -05:00

107 lines
3.9 KiB
Go

package eth
import (
"math/big"
"github.com/ethereum/go-ethereum/plugins"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"reflect"
"time"
)
func PluginCreateConsensusEngine(pl *plugins.PluginLoader, stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine {
fnList := pl.Lookup("CreateConsensusEngine", func(item interface{}) bool {
_, ok := item.(func(*node.Node, *params.ChainConfig, *ethash.Config, []string, bool, ethdb.Database) consensus.Engine)
return ok
})
for _, fni := range fnList {
if fn, ok := fni.(func(*node.Node, *params.ChainConfig, *ethash.Config, []string, bool, ethdb.Database) consensus.Engine); ok {
return fn(stack, chainConfig, config, notify, noverify, db)
}
}
return ethconfig.CreateConsensusEngine(stack, chainConfig, config, notify, noverify, db)
}
func pluginCreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine {
if plugins.DefaultPluginLoader == nil {
log.Warn("Attempting CreateConsensusEngine, but default PluginLoader has not been initialized")
return ethconfig.CreateConsensusEngine(stack, chainConfig, config, notify, noverify, db)
}
return PluginCreateConsensusEngine(plugins.DefaultPluginLoader, stack, chainConfig, config, notify, noverify, db)
}
type metaTracer struct{
tracers []vm.Tracer
}
func (mt *metaTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
for _, tracer := range mt.tracers {
tracer.CaptureStart(env, from, to, create, input, gas, value)
}
}
func (mt *metaTracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) {
for _, tracer := range mt.tracers {
tracer.CaptureState(env, pc, op, gas, cost, scope, rData, depth, err)
}
}
func (mt *metaTracer) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) {
for _, tracer := range mt.tracers {
tracer.CaptureFault(env, pc, op, gas, cost, scope, depth, err)
}
}
func (mt *metaTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {
for _, tracer := range mt.tracers {
tracer.CaptureEnd(output, gasUsed, t, err)
}
}
func PluginUpdateBlockchainVMConfig(pl *plugins.PluginLoader, cfg *vm.Config) {
tracerList := plugins.Lookup("LiveTracer", func(item interface{}) bool {
_, ok := item.(*vm.Tracer)
log.Info("Item is LiveTracer", "ok", ok, "type", reflect.TypeOf(item))
return ok
})
if len(tracerList) > 0 {
mt := &metaTracer{tracers: []vm.Tracer{}}
for _, tracer := range(tracerList) {
if v, ok := tracer.(*vm.Tracer); ok {
log.Info("LiveTracer registered")
mt.tracers = append(mt.tracers, *v)
} else {
log.Info("Item is not tracer")
}
}
cfg.Debug = true
cfg.Tracer = mt
} else {
log.Warn("Module is not tracer")
}
fnList := plugins.Lookup("UpdateBlockchainVMConfig", func(item interface{}) bool {
_, ok := item.(func(*vm.Config))
return ok
})
for _, fni := range fnList {
if fn, ok := fni.(func(*vm.Config)); ok {
fn(cfg)
return
}
}
}
func pluginUpdateBlockchainVMConfig(cfg *vm.Config) {
if plugins.DefaultPluginLoader == nil {
log.Warn("Attempting CreateConsensusEngine, but default PluginLoader has not been initialized")
return
}
PluginUpdateBlockchainVMConfig(plugins.DefaultPluginLoader, cfg)
}