mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-05-25 09:19:28 +00:00
5c4a89562d
Replaces the process-global LRU with a chain-owned, byte-bounded
SizeConstrainedCache (128MB) shared between block processor and
prefetcher. Threaded through Process/Prefetch as an optional argument;
RPC, tracing, and stateless callers pass nil and the EVM falls back to
its per-instance map. Adds chain/cache/jumpdest/{hit,miss} meters.
47 lines
1.7 KiB
Go
47 lines
1.7 KiB
Go
// Copyright 2024 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package vm
|
|
|
|
import "github.com/ethereum/go-ethereum/common"
|
|
|
|
// JumpDestCache represents the cache of jumpdest analysis results.
|
|
type JumpDestCache interface {
|
|
// Load retrieves the cached jumpdest analysis for the given code hash.
|
|
// Returns the BitVec and true if found, or nil and false if not cached.
|
|
Load(codeHash common.Hash) (BitVec, bool)
|
|
|
|
// Store saves the jumpdest analysis for the given code hash.
|
|
Store(codeHash common.Hash, vec BitVec)
|
|
}
|
|
|
|
// mapJumpDests is the default implementation of JumpDests using a map.
|
|
// This implementation is not thread-safe and is meant to be used per EVM instance.
|
|
type mapJumpDests map[common.Hash]BitVec
|
|
|
|
// newMapJumpDests creates a new map-based JumpDests implementation.
|
|
func newMapJumpDests() JumpDestCache {
|
|
return make(mapJumpDests)
|
|
}
|
|
|
|
func (j mapJumpDests) Load(codeHash common.Hash) (BitVec, bool) {
|
|
vec, ok := j[codeHash]
|
|
return vec, ok
|
|
}
|
|
|
|
func (j mapJumpDests) Store(codeHash common.Hash, vec BitVec) {
|
|
j[codeHash] = vec
|
|
}
|