mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-11-14 12:05:18 +00:00
58 lines
2.1 KiB
Go
58 lines
2.1 KiB
Go
package v0_16
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/0glabs/0g-chain/x/bep3/types"
|
|
)
|
|
|
|
// resetSwapForZeroHeight updates swap expiry/close heights to work when the chain height is reset to zero.
|
|
func resetSwapForZeroHeight(swap types.AtomicSwap) types.AtomicSwap {
|
|
switch status := swap.Status; status {
|
|
case types.SWAP_STATUS_COMPLETED:
|
|
// Reset closed block to one so completed swaps are not held in long term storage too long.
|
|
swap.ClosedBlock = 1
|
|
case types.SWAP_STATUS_OPEN:
|
|
switch dir := swap.Direction; dir {
|
|
case types.SWAP_DIRECTION_INCOMING:
|
|
// Open incoming swaps can be expired safely. They haven't been claimed yet, so the outgoing swap on bnb will just timeout.
|
|
// The chain downtime cannot be accurately predicted, so it's easier to expire than to recalculate a correct expire height.
|
|
swap.ExpireHeight = 1
|
|
swap.Status = types.SWAP_STATUS_EXPIRED
|
|
case types.SWAP_DIRECTION_OUTGOING:
|
|
// Open outgoing swaps should be extended to allow enough time to claim after the chain launches.
|
|
// They cannot be expired as there could be an open/claimed bnb swap.
|
|
swap.ExpireHeight = 1 + 24686 // default timeout used when sending swaps from 0g
|
|
case types.SWAP_DIRECTION_UNSPECIFIED:
|
|
default:
|
|
panic(fmt.Sprintf("unknown bep3 swap direction '%s'", dir))
|
|
}
|
|
case types.SWAP_STATUS_EXPIRED:
|
|
// Once a swap is marked expired the expire height is ignored. However reset to 1 to be sure.
|
|
swap.ExpireHeight = 1
|
|
case types.SWAP_STATUS_UNSPECIFIED:
|
|
default:
|
|
panic(fmt.Sprintf("unknown bep3 swap status '%s'", status))
|
|
}
|
|
|
|
return swap
|
|
}
|
|
|
|
func resetSwapsForZeroHeight(oldSwaps types.AtomicSwaps) types.AtomicSwaps {
|
|
newSwaps := make(types.AtomicSwaps, len(oldSwaps))
|
|
for i, oldSwap := range oldSwaps {
|
|
swap := resetSwapForZeroHeight(oldSwap)
|
|
newSwaps[i] = swap
|
|
}
|
|
return newSwaps
|
|
}
|
|
|
|
func Migrate(oldState types.GenesisState) *types.GenesisState {
|
|
return &types.GenesisState{
|
|
PreviousBlockTime: oldState.PreviousBlockTime,
|
|
Params: oldState.Params,
|
|
AtomicSwaps: resetSwapsForZeroHeight(oldState.AtomicSwaps),
|
|
Supplies: oldState.Supplies,
|
|
}
|
|
}
|