package core import ( "fmt" . "github.com/tendermint/go-common" ctypes "github.com/tendermint/tendermint/rpc/core/types" "github.com/tendermint/tendermint/types" ) //----------------------------------------------------------------------------- // TODO: limit/permission on (max - min) func BlockchainInfo(minHeight, maxHeight int) (*ctypes.ResultBlockchainInfo, error) { if maxHeight == 0 { maxHeight = blockStore.Height() } else { maxHeight = MinInt(blockStore.Height(), maxHeight) } if minHeight == 0 { minHeight = MaxInt(1, maxHeight-20) } log.Debug("BlockchainInfoHandler", "maxHeight", maxHeight, "minHeight", minHeight) blockMetas := []*types.BlockMeta{} for height := maxHeight; height >= minHeight; height-- { blockMeta := blockStore.LoadBlockMeta(height) blockMetas = append(blockMetas, blockMeta) } return &ctypes.ResultBlockchainInfo{blockStore.Height(), blockMetas}, nil } //----------------------------------------------------------------------------- func Block(height int) (*ctypes.ResultBlock, error) { if height == 0 { return nil, fmt.Errorf("Height must be greater than 0") } if height > blockStore.Height() { return nil, fmt.Errorf("Height must be less than the current blockchain height") } blockMeta := blockStore.LoadBlockMeta(height) block := blockStore.LoadBlock(height) return &ctypes.ResultBlock{blockMeta, block}, nil } //----------------------------------------------------------------------------- func Commit(height int) (*ctypes.ResultCommit, error) { if height == 0 { return nil, fmt.Errorf("Height must be greater than 0") } storeHeight := blockStore.Height() if height > storeHeight { return nil, fmt.Errorf("Height must be less than or equal to the current blockchain height") } header := blockStore.LoadBlockMeta(height).Header // If the next block has not been committed yet, // use a non-canonical commit if height == storeHeight { commit := blockStore.LoadSeenCommit(height) return &ctypes.ResultCommit{header, commit, false}, nil } // Return the canonical commit (comes from the block at height+1) commit := blockStore.LoadBlockCommit(height) return &ctypes.ResultCommit{header, commit, true}, nil }