fp_evm/
storage_oog.rs

1// This file is part of Frontier.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// 	http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18environmental::environmental!(STORAGE_OOG: bool);
19
20use crate::{ExitError, ExitReason};
21use sp_core::U256;
22
23pub fn handle_storage_oog<R, F>(gas_limit: u64, f: F) -> (ExitReason, R, u64, U256)
24where
25	F: FnOnce() -> (ExitReason, R, u64, U256),
26	R: Default,
27{
28	STORAGE_OOG::using_once(&mut false, || {
29		let (reason, retv, used_gas, effective_gas) = f();
30
31		STORAGE_OOG::with(|storage_oog| {
32			if *storage_oog {
33				(
34					ExitReason::Error(ExitError::OutOfGas),
35					Default::default(),
36					used_gas,
37					U256([gas_limit, 0, 0, 0]),
38				)
39			} else {
40				(reason, retv, used_gas, effective_gas)
41			}
42		})
43		// This should always return `Some`, but let's play it safe.
44		.expect("STORAGE_OOG not defined")
45	})
46}
47
48pub fn set_storage_oog() {
49	STORAGE_OOG::with(|storage_oog| {
50		*storage_oog = true;
51	});
52}
fp_evm/storage_oog.rs

fp_evm/
storage_oog.rs
