mirror of
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34 lines
1.2 KiB
Nim
34 lines
1.2 KiB
Nim
# Nimbus
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# Copyright (c) 2018-2025 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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from ./difficulty import GAS_LIMIT_ADJUSTMENT_FACTOR, GAS_LIMIT_MINIMUM, GasInt
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# CalcGasLimit1559 calculates the next block gas limit under 1559 rules.
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func calcGasLimit1559*(parentGasLimit, desiredLimit: GasInt): GasInt =
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let delta = parentGasLimit div GAS_LIMIT_ADJUSTMENT_FACTOR - 1.GasInt
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var limit = parentGasLimit
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var desiredLimit = desiredLimit
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if desiredLimit < GAS_LIMIT_MINIMUM:
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desiredLimit = GAS_LIMIT_MINIMUM
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# If we're outside our allowed gas range, we try to hone towards them
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if limit < desiredLimit:
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limit = parentGasLimit + delta
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if limit > desiredLimit:
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limit = desiredLimit
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return limit
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if limit > desiredLimit:
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limit = parentGasLimit - delta
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if limit < desiredLimit:
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limit = desiredLimit
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limit
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