91 lines
2.7 KiB
Go
91 lines
2.7 KiB
Go
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package keeper
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import (
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"math/big"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tharsis/ethermint/x/feemarket/types"
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)
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// Keeper grants access to the Fee Market module state.
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type Keeper struct {
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// Protobuf codec
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cdc codec.BinaryCodec
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// Store key required for the Fee Market Prefix KVStore.
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storeKey sdk.StoreKey
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// module specific parameter space that can be configured through governance
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paramSpace paramtypes.Subspace
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}
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// NewKeeper generates new fee market module keeper
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func NewKeeper(
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cdc codec.BinaryCodec, storeKey sdk.StoreKey, paramSpace paramtypes.Subspace,
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) Keeper {
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// set KeyTable if it has not already been set
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if !paramSpace.HasKeyTable() {
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paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
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}
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return Keeper{
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cdc: cdc,
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storeKey: storeKey,
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paramSpace: paramSpace,
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}
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}
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// Logger returns a module-specific logger.
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func (k Keeper) Logger(ctx sdk.Context) log.Logger {
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return ctx.Logger().With("module", types.ModuleName)
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}
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// ----------------------------------------------------------------------------
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// Parent Block Gas Used
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// Required by EIP1559 base fee calculation.
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// ----------------------------------------------------------------------------
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// GetBlockGasUsed returns the last block gas used value from the store.
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func (k Keeper) GetBlockGasUsed(ctx sdk.Context) uint64 {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.KeyPrefixBlockGasUsed)
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if len(bz) == 0 {
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return 0
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}
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return sdk.BigEndianToUint64(bz)
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}
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// SetBlockGasUsed gets the block gas consumed to the store.
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// CONTRACT: this should be only called during EndBlock.
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func (k Keeper) SetBlockGasUsed(ctx sdk.Context, gas uint64) {
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store := ctx.KVStore(k.storeKey)
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gasBz := sdk.Uint64ToBigEndian(gas)
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store.Set(types.KeyPrefixBlockGasUsed, gasBz)
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}
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// ----------------------------------------------------------------------------
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// Parent Base Fee
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// Required by EIP1559 base fee calculation.
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// ----------------------------------------------------------------------------
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// GetBlockGasUsed returns the last block gas used value from the store.
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func (k Keeper) GetBaseFee(ctx sdk.Context) *big.Int {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.KeyPrefixBaseFee)
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if len(bz) == 0 {
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return nil
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}
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return new(big.Int).SetBytes(bz)
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}
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// SetBlockGasUsed gets the current block gas consumed to the store.
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// CONTRACT: this should be only called during EndBlock.
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func (k Keeper) SetBaseFee(ctx sdk.Context, baseFee *big.Int) {
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store := ctx.KVStore(k.storeKey)
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store.Set(types.KeyPrefixBaseFee, baseFee.Bytes())
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}
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