diff --git a/core/plugin_hooks.go b/core/plugin_hooks.go index 77a5643ed..5ddde7437 100644 --- a/core/plugin_hooks.go +++ b/core/plugin_hooks.go @@ -190,6 +190,7 @@ type metaTracer struct { } func (mt *metaTracer) PreProcessBlock(block *types.Block) { + if len(mt.tracers) == 0 { return } blockHash := core.Hash(block.Hash()) blockNumber := block.NumberU64() encoded, _ := rlp.EncodeToBytes(block) @@ -198,6 +199,7 @@ func (mt *metaTracer) PreProcessBlock(block *types.Block) { } } func (mt *metaTracer) PreProcessTransaction(tx *types.Transaction, block *types.Block, i int) { + if len(mt.tracers) == 0 { return } blockHash := core.Hash(block.Hash()) transactionHash := core.Hash(tx.Hash()) for _, tracer := range mt.tracers { @@ -205,6 +207,7 @@ func (mt *metaTracer) PreProcessTransaction(tx *types.Transaction, block *types. } } func (mt *metaTracer) BlockProcessingError(tx *types.Transaction, block *types.Block, err error) { + if len(mt.tracers) == 0 { return } blockHash := core.Hash(block.Hash()) transactionHash := core.Hash(tx.Hash()) for _, tracer := range mt.tracers { @@ -212,6 +215,7 @@ func (mt *metaTracer) BlockProcessingError(tx *types.Transaction, block *types.B } } func (mt *metaTracer) PostProcessTransaction(tx *types.Transaction, block *types.Block, i int, receipt *types.Receipt) { + if len(mt.tracers) == 0 { return } blockHash := core.Hash(block.Hash()) transactionHash := core.Hash(tx.Hash()) receiptBytes, _ := json.Marshal(receipt) @@ -220,6 +224,7 @@ func (mt *metaTracer) PostProcessTransaction(tx *types.Transaction, block *types } } func (mt *metaTracer) PostProcessBlock(block *types.Block) { + if len(mt.tracers) == 0 { return } blockHash := core.Hash(block.Hash()) for _, tracer := range mt.tracers { tracer.PostProcessBlock(blockHash) @@ -258,7 +263,7 @@ func (mt *metaTracer) CaptureExit(output []byte, gasUsed uint64, err error) { } } -func PluginGetBlockTracer(pl *plugins.PluginLoader, hash common.Hash, statedb *state.StateDB) *metaTracer { +func PluginGetBlockTracer(pl *plugins.PluginLoader, hash common.Hash, statedb *state.StateDB) (*metaTracer, bool) { //look for a function that takes whatever the ctx provides and statedb and returns a core.blocktracer append into meta tracer tracerList := plugins.Lookup("GetLiveTracer", func(item interface{}) bool { _, ok := item.(func(core.Hash, core.StateDB) core.BlockTracer) @@ -274,9 +279,9 @@ func PluginGetBlockTracer(pl *plugins.PluginLoader, hash common.Hash, statedb *s } } } - return mt + return mt, (len(mt.tracers) > 0) } -func pluginGetBlockTracer(hash common.Hash, statedb *state.StateDB) *metaTracer { +func pluginGetBlockTracer(hash common.Hash, statedb *state.StateDB) (*metaTracer, bool) { if plugins.DefaultPluginLoader == nil { log.Warn("Attempting GetBlockTracer, but default PluginLoader has not been initialized") return &metaTracer{} diff --git a/core/state_processor.go b/core/state_processor.go index 273815fae..a7903cb96 100644 --- a/core/state_processor.go +++ b/core/state_processor.go @@ -71,9 +71,11 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg misc.ApplyDAOHardFork(statedb) } blockContext := NewEVMBlockContext(header, p.bc, nil) - blockTracer := pluginGetBlockTracer(header.Hash(), statedb) - cfg.Tracer = blockTracer - cfg.Debug = true + blockTracer, ok := pluginGetBlockTracer(header.Hash(), statedb) + if ok { + cfg.Tracer = blockTracer + cfg.Debug = true + } vmenv := vm.NewEVM(blockContext, vm.TxContext{}, statedb, p.config, cfg) // Iterate over and process the individual transactions pluginPreProcessBlock(block)