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core/rawdb, ethdb: introduce batched/atomic reads from ancients (#23566)

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This PR adds a new accessor method to the freezer database. This new view offers a consistent interface, guaranteeing that all individual tables (headers, bodies etc) are all on the same number, and that this number is not changes (added/truncated) while the operation is performing.
This commit is contained in:
Martin Holst Swende
2021-10-25 16:24:27 +02:00
committed by GitHub
parent 2954f40eac
commit 0e7efd696b
5 changed files with 129 additions and 138 deletions
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10
core/rawdb/table.go
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@ -62,10 +62,10 @@ func (t *table) Ancient(kind string, number uint64) ([]byte, error) {
return t.db.Ancient(kind, number)
}
// ReadAncients is a noop passthrough that just forwards the request to the underlying
// AncientRange is a noop passthrough that just forwards the request to the underlying
// database.
func (t *table) ReadAncients(kind string, start, count, maxBytes uint64) ([][]byte, error) {
return t.db.ReadAncients(kind, start, count, maxBytes)
func (t *table) AncientRange(kind string, start, count, maxBytes uint64) ([][]byte, error) {
return t.db.AncientRange(kind, start, count, maxBytes)
}
// Ancients is a noop passthrough that just forwards the request to the underlying
@ -85,6 +85,10 @@ func (t *table) ModifyAncients(fn func(ethdb.AncientWriteOp) error) (int64, erro
return t.db.ModifyAncients(fn)
}
func (t *table) ReadAncients(fn func(reader ethdb.AncientReader) error) (err error) {
return t.db.ReadAncients(fn)
}
// TruncateAncients is a noop passthrough that just forwards the request to the underlying
// database.
func (t *table) TruncateAncients(items uint64) error {