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allocation_meters.go
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allocation_meters.go
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// Copyright 2022 Evmos Foundation
// This file is part of the Evmos Network packages.
//
// Evmos is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The Evmos packages are distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the Evmos packages. If not, see https://github.com/evmos/evmos/blob/main/LICENSE
package keeper
import (
"fmt"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/evmos/evmos/v11/x/incentives/types"
)
// GetAllAllocationMeters - get all registered AllocationMeters
func (k Keeper) GetAllAllocationMeters(ctx sdk.Context) []sdk.DecCoin {
allocationMeters := []sdk.DecCoin{}
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.KeyPrefixAllocationMeter)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
denom := string(iterator.Key()[1:])
allocationMeter, found := k.GetAllocationMeter(ctx, denom)
if !found {
continue
}
allocationMeters = append(allocationMeters, allocationMeter)
}
return allocationMeters
}
// GetAllocationMeter - get registered allocationMeter from the identifier
func (k Keeper) GetAllocationMeter(
ctx sdk.Context,
denom string,
) (sdk.DecCoin, bool) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefixAllocationMeter)
bz := store.Get([]byte(denom))
if bz == nil {
return sdk.DecCoin{
Denom: denom,
Amount: sdk.ZeroDec(),
}, false
}
var amount sdk.Dec
err := amount.Unmarshal(bz)
if err != nil {
panic(fmt.Errorf("unable to unmarshal amount value %v", err))
}
return sdk.DecCoin{
Denom: denom,
Amount: amount,
}, true
}
// SetAllocationMeter stores an allocationMeter
func (k Keeper) SetAllocationMeter(ctx sdk.Context, am sdk.DecCoin) {
bz, err := am.Amount.Marshal()
if err != nil {
panic(fmt.Errorf("unable to marshal amount value %v", err))
}
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefixAllocationMeter)
key := []byte(am.Denom)
// Remove zero allocation meters
if am.IsZero() {
store.Delete(key)
} else {
store.Set(key, bz)
}
}