39 lines
1.6 KiB
Go
39 lines
1.6 KiB
Go
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// Copyright 2023 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 blobpool
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// newSlotter creates a helper method for the Billy datastore that returns the
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// individual shelf sizes used to store transactions in.
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//
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// The slotter will create shelves for each possible blob count + some tx metadata
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// wiggle room, up to the max permitted limits.
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//
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// The slotter also creates a shelf for 0-blob transactions. Whilst those are not
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// allowed in the current protocol, having an empty shelf is not a relevant use
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// of resources, but it makes stress testing with junk transactions simpler.
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func newSlotter() func() (uint32, bool) {
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slotsize := uint32(txAvgSize)
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slotsize -= uint32(blobSize) // underflows, it's ok, will overflow back in the first return
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return func() (size uint32, done bool) {
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slotsize += blobSize
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finished := slotsize > maxBlobsPerTransaction*blobSize+txMaxSize
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return slotsize, finished
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}
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}
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