forks/go-ethereum
1
0
Fork 1
mirror of https://github.com/ethereum/go-ethereum.git synced 2026-07-30 16:43:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

add tranfer log

Browse source
This commit is contained in:
Jaynti Kanani 2019-10-04 00:38:25 +05:30
parent b3473b729e
commit e92e0a3959
No known key found for this signature in database
GPG key ID: 4396982C976BAE5E
1 changed files with 42 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

42
core/evm.go
View file

@ -92,6 +92,48 @@ func CanTransfer(db vm.StateDB, addr common.Address, amount *big.Int) bool {
// Transfer subtracts amount from sender and adds amount to recipient using the given Db
func Transfer(db vm.StateDB, sender, recipient common.Address, amount *big.Int) {
// get inputs before
input1 := db.GetBalance(sender)
input2 := db.GetBalance(recipient)
db.SubBalance(sender, amount)
db.AddBalance(recipient, amount)
// get outputs after
output1 := db.GetBalance(sender)
output2 := db.GetBalance(recipient)
// add tranfer
db.AddLog(&types.Log{
Address: common.HexToAddress("0x0000000000000000000000000000000000001010"),
Topics: []common.Hash{
common.HexToHash("0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"),
sender.Hash(),
recipient.Hash(),
},
Data: common.BytesToHash(amount.Bytes()).Bytes(),
})
dataInputs := []*big.Int{
amount,
input1,
input2,
output1,
output2,
}
var data []byte
for _, v := range dataInputs {
data = append(data, common.LeftPadBytes(v.Bytes(), 32)...)
}
// add transfer log
db.AddLog(&types.Log{
Address: common.HexToAddress("0x0000000000000000000000000000000000001010"),
Topics: []common.Hash{
common.HexToHash("0xe6497e3ee548a3372136af2fcb0696db31fc6cf20260707645068bd3fe97f3c4"),
sender.Hash(),
recipient.Hash(),
},
Data: data,
})
}