/
keeper.go
91 lines (78 loc) · 2.9 KB
/
keeper.go
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package keeper
import (
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"github.com/tendermint/tendermint/libs/log"
"github.com/treasurenetprotocol/treasurenet/x/feemarket/types"
)
// Keeper grants access to the Fee Market module state.
type Keeper struct {
// Protobuf codec
cdc codec.BinaryCodec
// Store key required for the Fee Market Prefix KVStore.
storeKey sdk.StoreKey
transientKey sdk.StoreKey
// module specific parameter space that can be configured through governance
paramSpace paramtypes.Subspace
}
// NewKeeper generates new fee market module keeper
func NewKeeper(
cdc codec.BinaryCodec, paramSpace paramtypes.Subspace, storeKey, transientKey sdk.StoreKey,
) Keeper {
// set KeyTable if it has not already been set
if !paramSpace.HasKeyTable() {
paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
}
return Keeper{
cdc: cdc,
storeKey: storeKey,
paramSpace: paramSpace,
transientKey: transientKey,
}
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", types.ModuleName)
}
// ----------------------------------------------------------------------------
// Parent Block Gas Used
// Required by EIP1559 base fee calculation.
// ----------------------------------------------------------------------------
// SetBlockGasWanted sets the block gas wanted to the store.
// CONTRACT: this should be only called during EndBlock.
func (k Keeper) SetBlockGasWanted(ctx sdk.Context, gas uint64) {
store := ctx.KVStore(k.storeKey)
gasBz := sdk.Uint64ToBigEndian(gas)
store.Set(types.KeyPrefixBlockGasWanted, gasBz)
}
// GetBlockGasWanted returns the last block gas wanted value from the store.
func (k Keeper) GetBlockGasWanted(ctx sdk.Context) uint64 {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.KeyPrefixBlockGasWanted)
if len(bz) == 0 {
return 0
}
return sdk.BigEndianToUint64(bz)
}
// GetTransientGasWanted returns the gas wanted in the current block from transient store.
func (k Keeper) GetTransientGasWanted(ctx sdk.Context) uint64 {
store := ctx.TransientStore(k.transientKey)
bz := store.Get(types.KeyPrefixTransientBlockGasWanted)
if len(bz) == 0 {
return 0
}
return sdk.BigEndianToUint64(bz)
}
// SetTransientBlockGasWanted sets the block gas wanted to the transient store.
func (k Keeper) SetTransientBlockGasWanted(ctx sdk.Context, gasWanted uint64) {
store := ctx.TransientStore(k.transientKey)
gasBz := sdk.Uint64ToBigEndian(gasWanted)
store.Set(types.KeyPrefixTransientBlockGasWanted, gasBz)
}
// AddTransientGasWanted adds the cumulative gas wanted in the transient store
func (k Keeper) AddTransientGasWanted(ctx sdk.Context, gasWanted uint64) (uint64, error) {
result := k.GetTransientGasWanted(ctx) + gasWanted
k.SetTransientBlockGasWanted(ctx, result)
return result, nil
}