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[gas] trivial: move StorageGasParameters to its own module
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // Copyright (c) Aptos | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| use aptos_types::{ | ||
| on_chain_config::StorageGasSchedule, state_store::state_key::StateKey, write_set::WriteOp, | ||
| }; | ||
| use move_core_types::gas_algebra::{ | ||
| InternalGas, InternalGasPerArg, InternalGasPerByte, NumArgs, NumBytes, | ||
| }; | ||
|
|
||
| #[derive(Clone, Debug)] | ||
| pub struct StorageGasParameters { | ||
| pub per_item_read: InternalGasPerArg, | ||
| pub per_item_create: InternalGasPerArg, | ||
| pub per_item_write: InternalGasPerArg, | ||
| pub per_byte_read: InternalGasPerByte, | ||
| pub per_byte_create: InternalGasPerByte, | ||
| pub per_byte_write: InternalGasPerByte, | ||
| } | ||
|
|
||
| impl From<StorageGasSchedule> for StorageGasParameters { | ||
| fn from(gas_schedule: StorageGasSchedule) -> Self { | ||
| Self { | ||
| per_item_read: gas_schedule.per_item_read.into(), | ||
| per_item_create: gas_schedule.per_item_create.into(), | ||
| per_item_write: gas_schedule.per_item_write.into(), | ||
| per_byte_read: gas_schedule.per_byte_read.into(), | ||
| per_byte_create: gas_schedule.per_byte_create.into(), | ||
| per_byte_write: gas_schedule.per_byte_write.into(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl StorageGasParameters { | ||
| pub fn zeros() -> Self { | ||
| Self { | ||
| per_item_read: 0.into(), | ||
| per_item_create: 0.into(), | ||
| per_item_write: 0.into(), | ||
| per_byte_read: 0.into(), | ||
| per_byte_create: 0.into(), | ||
| per_byte_write: 0.into(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl StorageGasParameters { | ||
| pub fn calculate_write_set_gas<'a>( | ||
| &self, | ||
| ops: impl IntoIterator<Item = (&'a StateKey, &'a WriteOp)>, | ||
| feature_version: u64, | ||
| ) -> InternalGas { | ||
| use aptos_types::write_set::WriteOp::*; | ||
|
|
||
| let mut num_items_create = NumArgs::zero(); | ||
| let mut num_items_write = NumArgs::zero(); | ||
| let mut num_bytes_create = NumBytes::zero(); | ||
| let mut num_bytes_write = NumBytes::zero(); | ||
|
|
||
| for (key, op) in ops.into_iter() { | ||
| match &op { | ||
| Creation(data) => { | ||
| num_items_create += 1.into(); | ||
| num_bytes_create += Self::write_op_size(key, data, feature_version); | ||
| } | ||
| Modification(data) => { | ||
| num_items_write += 1.into(); | ||
| num_bytes_write += Self::write_op_size(key, data, feature_version); | ||
| } | ||
| Deletion => (), | ||
| } | ||
| } | ||
|
|
||
| num_items_create * self.per_item_create | ||
| + num_items_write * self.per_item_write | ||
| + num_bytes_create * self.per_byte_create | ||
| + num_bytes_write * self.per_byte_write | ||
| } | ||
|
|
||
| fn write_op_size(key: &StateKey, value: &[u8], feature_version: u64) -> NumBytes { | ||
| let value_size = NumBytes::new(value.len() as u64); | ||
|
|
||
| if feature_version > 2 { | ||
| let key_size = NumBytes::new(key.size() as u64); | ||
| let kb = NumBytes::new(1024); | ||
| (key_size + value_size) | ||
| .checked_sub(kb) | ||
| .unwrap_or(NumBytes::zero()) | ||
| } else { | ||
| let key_size = NumBytes::new( | ||
| key.encode() | ||
| .expect("Should be able to serialize state key") | ||
| .len() as u64, | ||
| ); | ||
| key_size + value_size | ||
| } | ||
| } | ||
| } |