package indexer import ( "math/big" "github.com/dexon-foundation/dexon/common" "github.com/dexon-foundation/dexon/consensus" "github.com/dexon-foundation/dexon/core" "github.com/dexon-foundation/dexon/core/state" "github.com/dexon-foundation/dexon/core/types" "github.com/dexon-foundation/dexon/core/vm" "github.com/dexon-foundation/dexon/event" "github.com/dexon-foundation/dexon/params" "github.com/dexon-foundation/dexon/rlp" ) // ReadOnlyBlockChain defines safe reading blockchain interface by removing write // methods of core.BlockChain struct. type ReadOnlyBlockChain interface { BadBlocks() []*types.Block Config() *params.ChainConfig CurrentBlock() *types.Block CurrentFastBlock() *types.Block CurrentHeader() *types.Header Engine() consensus.Engine GasLimit() uint64 Genesis() *types.Block GetAncestor(common.Hash, uint64, uint64, *uint64) (common.Hash, uint64) GetBlock(common.Hash, uint64) *types.Block GetBlockByHash(common.Hash) *types.Block GetBlockByNumber(uint64) *types.Block GetBlockHashesFromHash(common.Hash, uint64) []common.Hash GetBlocksFromHash(common.Hash, int) (blocks []*types.Block) GetBody(common.Hash) *types.Body GetBodyRLP(common.Hash) rlp.RawValue GetGovStateByHash(common.Hash) (*types.GovState, error) GetGovStateByNumber(uint64) (*types.GovState, error) GetHeader(common.Hash, uint64) *types.Header GetHeaderByHash(common.Hash) *types.Header GetHeaderByNumber(number uint64) *types.Header GetReceiptsByHash(common.Hash) types.Receipts GetRoundHeight(uint64) (uint64, bool) GetTd(common.Hash, uint64) *big.Int GetTdByHash(common.Hash) *big.Int GetUnclesInChain(*types.Block, int) []*types.Header GetVMConfig() *vm.Config HasBlock(common.Hash, uint64) bool HasBlockAndState(common.Hash, uint64) bool HasHeader(common.Hash, uint64) bool HasState(common.Hash) bool State() (*state.StateDB, error) StateAt(root common.Hash) (*state.StateDB, error) SubscribeChainEvent(chan<- core.ChainEvent) event.Subscription SubscribeChainHeadEvent(chan<- core.ChainHeadEvent) event.Subscription SubscribeChainSideEvent(chan<- core.ChainSideEvent) event.Subscription SubscribeLogsEvent(chan<- []*types.Log) event.Subscription SubscribeRemovedLogsEvent(chan<- core.RemovedLogsEvent) event.Subscription } // access protection type ro interface { ReadOnlyBlockChain } // ROBlockChain struct for safe read. type ROBlockChain struct { ro } // NewROBlockChain converts original block chain to readonly interface. func NewROBlockChain(bc *core.BlockChain) ReadOnlyBlockChain { return &ROBlockChain{ro: bc} }