From 4c0883e20d78b987dc95acd46498f326626aaee3 Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Tue, 23 Oct 2018 16:28:18 +0200
Subject: core/vm: adds refund as part of the json standard trace (#17910)

This adds the global accumulated refund counter to the standard
json output as a numeric json value. Previously this was not very
interesting since it was not used much, but with the new sstore
gas changes the value is a lot more interesting from a consensus
investigation perspective.
---
 core/vm/logger.go | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

(limited to 'core/vm/logger.go')

diff --git a/core/vm/logger.go b/core/vm/logger.go
index 85acb8d6d..1733bf270 100644
--- a/core/vm/logger.go
+++ b/core/vm/logger.go
@@ -56,16 +56,17 @@ type LogConfig struct {
 // StructLog is emitted to the EVM each cycle and lists information about the current internal state
 // prior to the execution of the statement.
 type StructLog struct {
-	Pc         uint64                      `json:"pc"`
-	Op         OpCode                      `json:"op"`
-	Gas        uint64                      `json:"gas"`
-	GasCost    uint64                      `json:"gasCost"`
-	Memory     []byte                      `json:"memory"`
-	MemorySize int                         `json:"memSize"`
-	Stack      []*big.Int                  `json:"stack"`
-	Storage    map[common.Hash]common.Hash `json:"-"`
-	Depth      int                         `json:"depth"`
-	Err        error                       `json:"-"`
+	Pc            uint64                      `json:"pc"`
+	Op            OpCode                      `json:"op"`
+	Gas           uint64                      `json:"gas"`
+	GasCost       uint64                      `json:"gasCost"`
+	Memory        []byte                      `json:"memory"`
+	MemorySize    int                         `json:"memSize"`
+	Stack         []*big.Int                  `json:"stack"`
+	Storage       map[common.Hash]common.Hash `json:"-"`
+	Depth         int                         `json:"depth"`
+	RefundCounter uint64                      `json:"refund"`
+	Err           error                       `json:"-"`
 }
 
 // overrides for gencodec
@@ -177,7 +178,7 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
 		storage = l.changedValues[contract.Address()].Copy()
 	}
 	// create a new snaptshot of the EVM.
-	log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, storage, depth, err}
+	log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, storage, depth, env.StateDB.GetRefund(), err}
 
 	l.logs = append(l.logs, log)
 	return nil
-- 
cgit