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1afcea992c
The struct is 80 bytes (10 ints) — value semantics matches the type's "snapshot, safe to pass by value" thesis stated in its doc comment, and removes three unnecessary &-takings at call sites. No behavior change.
60 lines
3 KiB
Go
60 lines
3 KiB
Go
// Copyright 2026 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package state
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// StateCounts holds count-only statistics gathered during a block's state
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// transition. It is the snapshot/aggregation type: all fields are plain ints,
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// safe to copy and pass by value through channels and struct fields.
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//
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// StateDB still uses atomic counters internally (for concurrent worker
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// updates); the conversion to plain ints happens at the snapshot boundary
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// in (*StateDB).SnapshotCounts. This separation keeps the live atomics
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// scoped to the mutation surface and lets the rest of the pipeline use
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// vet-clean value semantics.
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//
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// Only counts live here — time.Duration fields (AccountReads, StorageReads,
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// etc.) stay on StateDB directly, since their parallel-execution semantics
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// don't fit the simple Add merge pattern.
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type StateCounts struct {
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AccountLoaded int // accounts retrieved from the database during the state transition
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AccountUpdated int // accounts updated during the state transition
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AccountDeleted int // accounts deleted during the state transition
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StorageLoaded int // storage slots retrieved from the database during the state transition
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StorageUpdated int64 // storage slots updated (snapshotted from atomic on StateDB)
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StorageDeleted int64 // storage slots deleted (snapshotted from atomic on StateDB)
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CodeLoaded int // contract code reads
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CodeLoadBytes int // total bytes of resolved code
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CodeUpdated int // code writes (CREATE/CREATE2/EIP-7702)
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CodeUpdateBytes int // total bytes of persisted code written
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}
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// Add merges other into c. Plain integer addition — no atomics here, since
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// StateCounts is the snapshot type. The receiver is the only mutated party;
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// other is taken by value (the struct is small and value semantics matches
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// the snapshot thesis stated above).
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func (c *StateCounts) Add(other StateCounts) {
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c.AccountLoaded += other.AccountLoaded
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c.AccountUpdated += other.AccountUpdated
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c.AccountDeleted += other.AccountDeleted
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c.StorageLoaded += other.StorageLoaded
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c.StorageUpdated += other.StorageUpdated
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c.StorageDeleted += other.StorageDeleted
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c.CodeLoaded += other.CodeLoaded
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c.CodeLoadBytes += other.CodeLoadBytes
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c.CodeUpdated += other.CodeUpdated
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c.CodeUpdateBytes += other.CodeUpdateBytes
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}
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