mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-11-14 20:15:18 +00:00
252 lines
8.5 KiB
Go
252 lines
8.5 KiB
Go
package keeper
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import (
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"fmt"
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"time"
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"github.com/cosmos/cosmos-sdk/codec"
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"github.com/cosmos/cosmos-sdk/store/prefix"
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storetypes "github.com/cosmos/cosmos-sdk/store/types"
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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/0glabs/0g-chain/x/bep3/types"
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)
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// Keeper of the bep3 store
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type Keeper struct {
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key storetypes.StoreKey
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cdc codec.Codec
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paramSubspace paramtypes.Subspace
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bankKeeper types.BankKeeper
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accountKeeper types.AccountKeeper
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Maccs map[string]bool
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}
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// NewKeeper creates a bep3 keeper
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func NewKeeper(cdc codec.Codec, key storetypes.StoreKey, sk types.BankKeeper, ak types.AccountKeeper,
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paramstore paramtypes.Subspace, maccs map[string]bool,
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) Keeper {
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if !paramstore.HasKeyTable() {
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paramstore = paramstore.WithKeyTable(types.ParamKeyTable())
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}
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keeper := Keeper{
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key: key,
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cdc: cdc,
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paramSubspace: paramstore,
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bankKeeper: sk,
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accountKeeper: ak,
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Maccs: maccs,
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}
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return keeper
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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", fmt.Sprintf("x/%s", types.ModuleName))
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}
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// ------------------------------------------
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// Atomic Swaps
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// ------------------------------------------
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// SetAtomicSwap puts the AtomicSwap into the store, and updates any indexes.
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func (k Keeper) SetAtomicSwap(ctx sdk.Context, atomicSwap types.AtomicSwap) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapKeyPrefix)
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bz := k.cdc.MustMarshal(&atomicSwap)
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store.Set(atomicSwap.GetSwapID(), bz)
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}
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// GetAtomicSwap gets an AtomicSwap from the store.
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func (k Keeper) GetAtomicSwap(ctx sdk.Context, swapID []byte) (types.AtomicSwap, bool) {
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var atomicSwap types.AtomicSwap
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapKeyPrefix)
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bz := store.Get(swapID)
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if bz == nil {
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return atomicSwap, false
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}
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k.cdc.MustUnmarshal(bz, &atomicSwap)
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return atomicSwap, true
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}
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// RemoveAtomicSwap removes an AtomicSwap from the AtomicSwapKeyPrefix.
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func (k Keeper) RemoveAtomicSwap(ctx sdk.Context, swapID []byte) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapKeyPrefix)
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store.Delete(swapID)
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}
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// IterateAtomicSwaps provides an iterator over all stored AtomicSwaps.
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// For each AtomicSwap, cb will be called. If cb returns true, the iterator will close and stop.
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func (k Keeper) IterateAtomicSwaps(ctx sdk.Context, cb func(atomicSwap types.AtomicSwap) (stop bool)) {
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iterator := sdk.KVStorePrefixIterator(ctx.KVStore(k.key), types.AtomicSwapKeyPrefix)
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defer iterator.Close()
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for ; iterator.Valid(); iterator.Next() {
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var atomicSwap types.AtomicSwap
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k.cdc.MustUnmarshal(iterator.Value(), &atomicSwap)
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if cb(atomicSwap) {
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break
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}
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}
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}
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// GetAllAtomicSwaps returns all AtomicSwaps from the store
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func (k Keeper) GetAllAtomicSwaps(ctx sdk.Context) (atomicSwaps types.AtomicSwaps) {
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k.IterateAtomicSwaps(ctx, func(atomicSwap types.AtomicSwap) bool {
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atomicSwaps = append(atomicSwaps, atomicSwap)
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return false
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})
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return
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}
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// ------------------------------------------
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// Atomic Swap Block Index
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// ------------------------------------------
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// InsertIntoByBlockIndex adds a swap ID and expiration time into the byBlock index.
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func (k Keeper) InsertIntoByBlockIndex(ctx sdk.Context, atomicSwap types.AtomicSwap) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapByBlockPrefix)
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store.Set(types.GetAtomicSwapByHeightKey(atomicSwap.ExpireHeight, atomicSwap.GetSwapID()), atomicSwap.GetSwapID())
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}
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// RemoveFromByBlockIndex removes an AtomicSwap from the byBlock index.
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func (k Keeper) RemoveFromByBlockIndex(ctx sdk.Context, atomicSwap types.AtomicSwap) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapByBlockPrefix)
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store.Delete(types.GetAtomicSwapByHeightKey(atomicSwap.ExpireHeight, atomicSwap.GetSwapID()))
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}
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// IterateAtomicSwapsByBlock provides an iterator over AtomicSwaps ordered by AtomicSwap expiration block
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// For each AtomicSwap cb will be called. If cb returns true the iterator will close and stop.
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func (k Keeper) IterateAtomicSwapsByBlock(ctx sdk.Context, inclusiveCutoffTime uint64, cb func(swapID []byte) (stop bool)) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapByBlockPrefix)
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iterator := store.Iterator(
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nil, // start at the very start of the prefix store
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sdk.PrefixEndBytes(sdk.Uint64ToBigEndian(inclusiveCutoffTime)), // end of range
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)
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defer iterator.Close()
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for ; iterator.Valid(); iterator.Next() {
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id := iterator.Value()
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if cb(id) {
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break
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}
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}
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}
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// ------------------------------------------
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// Atomic Swap Longterm Storage Index
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// ------------------------------------------
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// InsertIntoLongtermStorage adds a swap ID and deletion time into the longterm storage index.
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// Completed swaps are stored for 1 week.
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func (k Keeper) InsertIntoLongtermStorage(ctx sdk.Context, atomicSwap types.AtomicSwap) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapLongtermStoragePrefix)
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deletionHeight := uint64(atomicSwap.ClosedBlock) + types.DefaultLongtermStorageDuration
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store.Set(types.GetAtomicSwapByHeightKey(deletionHeight, atomicSwap.GetSwapID()), atomicSwap.GetSwapID())
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}
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// RemoveFromLongtermStorage removes a swap from the into the longterm storage index
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func (k Keeper) RemoveFromLongtermStorage(ctx sdk.Context, atomicSwap types.AtomicSwap) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapLongtermStoragePrefix)
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deletionHeight := uint64(atomicSwap.ClosedBlock) + types.DefaultLongtermStorageDuration
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store.Delete(types.GetAtomicSwapByHeightKey(deletionHeight, atomicSwap.GetSwapID()))
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}
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// IterateAtomicSwapsLongtermStorage provides an iterator over AtomicSwaps ordered by deletion height.
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// For each AtomicSwap cb will be called. If cb returns true the iterator will close and stop.
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func (k Keeper) IterateAtomicSwapsLongtermStorage(ctx sdk.Context, inclusiveCutoffTime uint64,
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cb func(swapID []byte) (stop bool),
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) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AtomicSwapLongtermStoragePrefix)
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iterator := store.Iterator(
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nil, // start at the very start of the prefix store
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sdk.PrefixEndBytes(sdk.Uint64ToBigEndian(inclusiveCutoffTime)), // end of range
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)
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defer iterator.Close()
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for ; iterator.Valid(); iterator.Next() {
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id := iterator.Value()
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if cb(id) {
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break
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}
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}
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}
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// ------------------------------------------
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// Asset Supplies
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// ------------------------------------------
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// GetAssetSupply gets an asset's current supply from the store.
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func (k Keeper) GetAssetSupply(ctx sdk.Context, denom string) (types.AssetSupply, bool) {
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var assetSupply types.AssetSupply
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store := prefix.NewStore(ctx.KVStore(k.key), types.AssetSupplyPrefix)
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bz := store.Get([]byte(denom))
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if bz == nil {
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return types.AssetSupply{}, false
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}
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k.cdc.MustUnmarshal(bz, &assetSupply)
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return assetSupply, true
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}
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// SetAssetSupply updates an asset's supply
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func (k Keeper) SetAssetSupply(ctx sdk.Context, supply types.AssetSupply, denom string) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.AssetSupplyPrefix)
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store.Set([]byte(denom), k.cdc.MustMarshal(&supply))
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}
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// IterateAssetSupplies provides an iterator over all stored AssetSupplies.
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func (k Keeper) IterateAssetSupplies(ctx sdk.Context, cb func(supply types.AssetSupply) (stop bool)) {
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iterator := sdk.KVStorePrefixIterator(ctx.KVStore(k.key), types.AssetSupplyPrefix)
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defer iterator.Close()
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for ; iterator.Valid(); iterator.Next() {
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var supply types.AssetSupply
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k.cdc.MustUnmarshal(iterator.Value(), &supply)
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if cb(supply) {
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break
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}
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}
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}
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// GetAllAssetSupplies returns all asset supplies from the store
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func (k Keeper) GetAllAssetSupplies(ctx sdk.Context) (supplies types.AssetSupplies) {
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k.IterateAssetSupplies(ctx, func(supply types.AssetSupply) bool {
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supplies = append(supplies, supply)
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return false
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})
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return
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}
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// GetPreviousBlockTime get the blocktime for the previous block
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func (k Keeper) GetPreviousBlockTime(ctx sdk.Context) (blockTime time.Time, found bool) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousBlockTimeKey)
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b := store.Get(types.PreviousBlockTimeKey)
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if b == nil {
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return time.Time{}, false
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}
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if err := blockTime.UnmarshalBinary(b); err != nil {
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panic(err)
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}
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return blockTime, true
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}
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// SetPreviousBlockTime set the time of the previous block
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func (k Keeper) SetPreviousBlockTime(ctx sdk.Context, blockTime time.Time) {
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store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousBlockTimeKey)
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b, err := blockTime.MarshalBinary()
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if err != nil {
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panic(err)
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}
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store.Set(types.PreviousBlockTimeKey, b)
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}
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