diff options
Diffstat (limited to 'vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go')
| -rw-r--r-- | vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go b/vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go index 5e13dc604..ebbbbd475 100644 --- a/vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go +++ b/vendor/github.com/dexon-foundation/dexon-consensus/core/db/interfaces.go @@ -22,6 +22,7 @@ import ( "fmt" "github.com/dexon-foundation/dexon-consensus/common" + "github.com/dexon-foundation/dexon-consensus/core/crypto/dkg" "github.com/dexon-foundation/dexon-consensus/core/types" ) @@ -38,6 +39,17 @@ 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") + // ErrDKGPrivateKeyExists raised when attempting to save DKG private key + // that already saved. + ErrDKGPrivateKeyExists = errors.New("dkg private key exists") + // ErrDKGPrivateKeyDoesNotExist raised when the DKG private key of the + // requested round does not exists. + ErrDKGPrivateKeyDoesNotExist = errors.New("dkg private key does not exists") ) // Database is the interface for a Database. @@ -55,12 +67,23 @@ 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) + + // DKG Private Key related methods. + HasDKGPrivateKey(round uint64) (bool, error) + GetDKGPrivateKey(round uint64) (dkg.PrivateKey, error) } // 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 + PutDKGPrivateKey(uint64, dkg.PrivateKey) error } // BlockIterator defines an iterator on blocks hold |