/// <summary> /// Returns the block with the specified height, searching from <see cref="chainBranchBlockHash"/>. If the height /// is in the irreversible section of the chain, it will get the block from the indexed blocks. /// </summary> /// <param name="chain">the chain to search</param> /// <param name="height">the height of the block</param> /// <param name="chainBranchBlockHash">the block from which to start the search.</param> /// <returns></returns> public async Task <Hash> GetBlockHashByHeightAsync(Chain chain, long height, Hash chainBranchBlockHash) { if (chain.LastIrreversibleBlockHeight >= height) { // search irreversible section of the chain return((await _chainManager.GetChainBlockIndexAsync(height)).BlockHash); } // TODO: may introduce cache to improve the performance var chainBlockLink = await _chainManager.GetChainBlockLinkAsync(chainBranchBlockHash); if (chainBlockLink.Height < height) { return(null); } while (true) { if (chainBlockLink.Height == height) { return(chainBlockLink.BlockHash); } chainBranchBlockHash = chainBlockLink.PreviousBlockHash; chainBlockLink = await _chainManager.GetChainBlockLinkAsync(chainBranchBlockHash); if (chainBlockLink == null) { return(null); } } }
/// <summary> /// Returns the block with the specified height, searching from <see cref="chainBranchBlockHash"/>. If the height /// is in the irreversible section of the chain, it will get the block from the indexed blocks. /// </summary> /// <param name="chain">the chain to search</param> /// <param name="height">the height of the block</param> /// <param name="chainBranchBlockHash">the block from which to start the search.</param> /// <returns></returns> public async Task <Hash> GetBlockHashByHeightAsync(Chain chain, long height, Hash chainBranchBlockHash) { // 1 2 3 4(lib) 5 6 // 4 >= height // return any(1,2,3,4) if (chain.LastIrreversibleBlockHeight >= height) { // search irreversible section of the chain return((await _chainManager.GetChainBlockIndexAsync(height)).BlockHash); } // Last irreversible block can make the loops in acceptable size, do not need cache // 1 2 3 4(lib) 5 6 // 4 < height // return any(5,6) var chainBlockLink = await _chainManager.GetChainBlockLinkAsync(chainBranchBlockHash); if (chainBlockLink.Height < height) { Logger.LogWarning( $"Start searching height: {chainBlockLink.Height},target height: {height},cannot get block hash"); return(null); } while (true) { if (chainBlockLink.Height == height) { return(chainBlockLink.BlockHash); } chainBranchBlockHash = chainBlockLink.PreviousBlockHash; chainBlockLink = await _chainManager.GetChainBlockLinkAsync(chainBranchBlockHash); if (chainBlockLink == null || chainBlockLink.Height <= chain.LastIrreversibleBlockHeight) { return(null); } } }
public async Task Set_IrreversibleBlock_Test() { NewIrreversibleBlockFoundEvent eventData = null; _eventBus.Subscribe <NewIrreversibleBlockFoundEvent>(d => { eventData = d; return(Task.CompletedTask); }); var chain = await _fullBlockchainService.GetChainAsync(); { // LIB height: 7 // // Height: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10 -> 11 -> 12 -> 13 -> 14 // Best Branch: a -> b -> c -> d -> e -> f -> g -> h -> i -> j -> k // Longest Branch: (h)-> l -> m -> n -> o -> p // Fork Branch: (e)-> q -> r -> s -> t -> u // Unlinked Branch: v -> w -> x -> y -> z await _fullBlockchainService.SetIrreversibleBlockAsync(chain, _kernelTestHelper.BestBranchBlockList[6] .Height, _kernelTestHelper.BestBranchBlockList[6].GetHash()); chain = await _fullBlockchainService.GetChainAsync(); chain.LastIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].GetHash()); chain.LastIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].Height); eventData.ShouldNotBeNull(); eventData.BlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].GetHash()); eventData.BlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].Height); eventData.PreviousIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[4].GetHash()); eventData.PreviousIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[4].Height); var blockLink = await _chainManager.GetChainBlockLinkAsync(_kernelTestHelper.BestBranchBlockList[6].GetHash()); while (blockLink != null) { blockLink.IsIrreversibleBlock.ShouldBeTrue(); var chainBlockIndex = await _chainManager.GetChainBlockIndexAsync(blockLink.Height); chainBlockIndex.BlockHash.ShouldBe(blockLink.BlockHash); blockLink = await _chainManager.GetChainBlockLinkAsync(blockLink.PreviousBlockHash); } } { // LIB height: 11 // // Height: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10 -> 11 -> 12 -> 13 -> 14 // Best Branch: a -> b -> c -> d -> e -> f -> g -> h -> i -> j -> k // Longest Branch: (-) (h)-> l -> m -> n -> o -> p // Fork Branch: (-) (e)-> q -> r -> s -> t -> u // Unlinked Branch: v(-) -> w -> x -> y -> z eventData = null; await _fullBlockchainService.SetIrreversibleBlockAsync(chain, _kernelTestHelper.BestBranchBlockList[10] .Height, _kernelTestHelper.BestBranchBlockList[10].GetHash()); chain = await _fullBlockchainService.GetChainAsync(); chain.LastIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].GetHash()); chain.LastIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].Height); eventData.ShouldNotBeNull(); eventData.BlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].GetHash()); eventData.BlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].Height); eventData.PreviousIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].GetHash()); eventData.PreviousIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].Height); var blockLink = await _chainManager.GetChainBlockLinkAsync(_kernelTestHelper.BestBranchBlockList[10].GetHash()); while (blockLink != null) { blockLink.IsIrreversibleBlock.ShouldBeTrue(); var chainBlockIndex = await _chainManager.GetChainBlockIndexAsync(blockLink.Height); chainBlockIndex.BlockHash.ShouldBe(blockLink.BlockHash); blockLink = await _chainManager.GetChainBlockLinkAsync(blockLink.PreviousBlockHash); } } { // Set lib failed eventData = null; await _fullBlockchainService.SetIrreversibleBlockAsync(chain, _kernelTestHelper.BestBranchBlockList[9] .Height, _kernelTestHelper.BestBranchBlockList[9].GetHash()); eventData.ShouldBeNull(); } }
public async Task Set_IrreversibleBlock_Test() { var chain = await _fullBlockchainService.GetChainAsync(); { // LIB height: 7 // // Height: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10 -> 11 -> 12 -> 13 -> 14 // Best Branch: a -> b -> c -> d -> e -> f -> g -> h -> i -> j -> k // Longest Branch: (h)-> l -> m -> n -> o -> p // Fork Branch: (e)-> q -> r -> s -> t -> u // Unlinked Branch: v -> w -> x -> y -> z await _fullBlockchainService.SetIrreversibleBlockAsync(chain, _kernelTestHelper.BestBranchBlockList[6] .Height, _kernelTestHelper.BestBranchBlockList[6].GetHash()); chain = await _fullBlockchainService.GetChainAsync(); chain.LastIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].GetHash()); chain.LastIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[6].Height); var blockLink = await _chainManager.GetChainBlockLinkAsync(_kernelTestHelper.BestBranchBlockList[6].GetHash()); while (blockLink != null) { blockLink.IsIrreversibleBlock.ShouldBeTrue(); var chainBlockIndex = await _chainManager.GetChainBlockIndexAsync(blockLink.Height); chainBlockIndex.BlockHash.ShouldBe(blockLink.BlockHash); blockLink = await _chainManager.GetChainBlockLinkAsync(blockLink.PreviousBlockHash); } } { // LIB height: 11 // // Height: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10 -> 11 -> 12 -> 13 -> 14 // Best Branch: a -> b -> c -> d -> e -> f -> g -> h -> i -> j -> k // Longest Branch: (-) (h)-> l -> m -> n -> o -> p // Fork Branch: (-) (e)-> q -> r -> s -> t -> u // Unlinked Branch: v(-) -> w -> x -> y -> z await _fullBlockchainService.SetIrreversibleBlockAsync(chain, _kernelTestHelper.BestBranchBlockList[10] .Height, _kernelTestHelper.BestBranchBlockList[10].GetHash()); chain = await _fullBlockchainService.GetChainAsync(); chain.LastIrreversibleBlockHash.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].GetHash()); chain.LastIrreversibleBlockHeight.ShouldBe(_kernelTestHelper.BestBranchBlockList[10].Height); var blockLink = await _chainManager.GetChainBlockLinkAsync(_kernelTestHelper.BestBranchBlockList[10].GetHash()); while (blockLink != null) { blockLink.IsIrreversibleBlock.ShouldBeTrue(); var chainBlockIndex = await _chainManager.GetChainBlockIndexAsync(blockLink.Height); chainBlockIndex.BlockHash.ShouldBe(blockLink.BlockHash); blockLink = await _chainManager.GetChainBlockLinkAsync(blockLink.PreviousBlockHash); } } }