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20 lines
620 B
Markdown
20 lines
620 B
Markdown
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# Begin Block
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At the start of each block, atomic swaps that have reached `ExpireHeight` are expired. The logic to expire atomic swaps is as follows:
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```go
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var expiredSwaps [][]byte
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k.IterateAtomicSwapsByBlock(ctx, uint64(ctx.BlockHeight()), func(id []byte) bool {
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expiredSwaps = append(expiredSwaps, id)
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return false
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})
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// Expire incomplete swaps (claimed swaps have already been removed from byBlock index)
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for _, id := range expiredSwaps {
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atomicSwap, _ := k.GetAtomicSwap(ctx, id)
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atomicSwap.Status = types.Expired
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k.SetAtomicSwap(ctx, atomicSwap)
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k.RemoveFromByBlockIndex(ctx, atomicSwap)
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}
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```
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