diff options
Diffstat (limited to 'core/db/interfaces.go')
| -rw-r--r-- | core/db/interfaces.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/core/db/interfaces.go b/core/db/interfaces.go index 5e13dc6..3ffba4a 100644 --- a/core/db/interfaces.go +++ b/core/db/interfaces.go @@ -38,6 +38,11 @@ var ( ErrClosed = fmt.Errorf("db closed") // ErrNotImplemented is the error that some interface is not implemented. ErrNotImplemented = fmt.Errorf("not implemented") + // ErrInvalidCompactionChainTipHeight means the newly updated height of + // the tip of compaction chain is invalid, usually means it's smaller than + // current cached one. + ErrInvalidCompactionChainTipHeight = fmt.Errorf( + "invalid compaction chain tip height") ) // Database is the interface for a Database. @@ -55,12 +60,18 @@ type Reader interface { HasBlock(hash common.Hash) bool GetBlock(hash common.Hash) (types.Block, error) GetAllBlocks() (BlockIterator, error) + + // GetCompactionChainTipInfo returns the block hash and finalization height + // of the tip block of compaction chain. Empty hash and zero height means + // the compaction chain is empty. + GetCompactionChainTipInfo() (common.Hash, uint64) } // Writer defines the interface for writing blocks into DB. type Writer interface { UpdateBlock(block types.Block) error PutBlock(block types.Block) error + PutCompactionChainTipInfo(common.Hash, uint64) error } // BlockIterator defines an iterator on blocks hold |