diff options
| author | Felix Lange <fjl@twurst.com> | 2016-10-04 18:36:02 +0800 |
|---|---|---|
| committer | Felix Lange <fjl@twurst.com> | 2016-10-06 21:32:16 +0800 |
| commit | 1f1ea18b5414bea22332bb4fce53cc95b5c6a07d (patch) | |
| tree | d1aa3051f9c4d9f33a24519c18b70f0dd2f00644 /core/execution.go | |
| parent | ab7adb0027dbcf09cf75a533be356c1e24c46c90 (diff) | |
| download | go-tangerine-1f1ea18b5414bea22332bb4fce53cc95b5c6a07d.tar.gz go-tangerine-1f1ea18b5414bea22332bb4fce53cc95b5c6a07d.tar.zst go-tangerine-1f1ea18b5414bea22332bb4fce53cc95b5c6a07d.zip | |
core/state: implement reverts by journaling all changes
This commit replaces the deep-copy based state revert mechanism with a
linear complexity journal. This commit also hides several internal
StateDB methods to limit the number of ways in which calling code can
use the journal incorrectly.
As usual consultation and bug fixes to the initial implementation were
provided by @karalabe, @obscuren and @Arachnid. Thank you!
Diffstat (limited to 'core/execution.go')
| -rw-r--r-- | core/execution.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/core/execution.go b/core/execution.go index 1bc02f7fb..1cb507ee7 100644 --- a/core/execution.go +++ b/core/execution.go @@ -85,7 +85,7 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A createAccount = true } - snapshotPreTransfer := env.MakeSnapshot() + snapshotPreTransfer := env.SnapshotDatabase() var ( from = env.Db().GetAccount(caller.Address()) to vm.Account @@ -129,7 +129,7 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A if err != nil && (env.RuleSet().IsHomestead(env.BlockNumber()) || err != vm.CodeStoreOutOfGasError) { contract.UseGas(contract.Gas) - env.SetSnapshot(snapshotPreTransfer) + env.RevertToSnapshot(snapshotPreTransfer) } return ret, addr, err @@ -144,7 +144,7 @@ func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toA return nil, common.Address{}, vm.DepthError } - snapshot := env.MakeSnapshot() + snapshot := env.SnapshotDatabase() var to vm.Account if !env.Db().Exist(*toAddr) { @@ -162,7 +162,7 @@ func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toA if err != nil { contract.UseGas(contract.Gas) - env.SetSnapshot(snapshot) + env.RevertToSnapshot(snapshot) } return ret, addr, err |