func (db *T) GetTransactionBlock(hash types.Hash) (b *block.Block, e error) {
readable(&e, db, func(dbtx *bolt.Tx) {
bucket := dbtx.Bucket([]byte("blocks"))
if bucket != nil {
blockHash := bucket.Get(append([]byte("T"), hash...))
if blockHash == nil {
e = fmt.Errorf("transaction %s isn't included in any block", hash)
return
}
encodedBlock := bucket.Get(blockHash)
b, e = block.Decode(encodedBlock)
}
})
return
}
func (db *T) GetBlock(hash []byte) (blk *block.Block, e error) {
readable(&e, db, func(dbtx *bolt.Tx) {
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
e = errors.New("blocks bucket does not exist")
return
}
b := bucket.Get(hash)
if b == nil {
e = errors.New("block not found")
return
}
blk, e = block.Decode(b)
})
return
}
func (db *T) GetLastBlock() (blk *block.Block, e error) {
readable(&e, db, func(dbtx *bolt.Tx) {
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
return
}
last := bucket.Get([]byte("last"))
if last == nil {
return
}
b := bucket.Get(last)
if b == nil {
e = errors.New("block not found")
return
}
blk, e = block.Decode(b)
})
return
}
func (db *T) GetNextBlock(hash types.Hash) (blk *block.Block, e error) {
readable(&e, db, func(dbtx *bolt.Tx) {
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
return
}
next := bucket.Get(append(hash, []byte("+")...))
if next == nil {
return
}
b := bucket.Get(next)
if b == nil {
e = errors.New("block not found")
return
}
blk, e = block.Decode(b)
})
return
}
func (db *T) GetBlock(hash []byte) (*block.Block, error) {
dbtx, err := db.DB.Begin(false)
defer dbtx.Rollback()
if err != nil {
return nil, err
}
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
return nil, errors.New("blocks bucket does not exist")
}
b := bucket.Get(hash)
if b == nil {
return nil, errors.New("block not found")
}
decodedBlock, err := block.Decode(b)
if err != nil {
return decodedBlock, err
}
return decodedBlock, nil
}
func (db *T) GetTransactionBlock(hash []byte) (*block.Block, error) {
dbtx, err := db.DB.Begin(false)
defer dbtx.Rollback()
if err != nil {
return nil, err
}
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
return nil, nil
}
blockHash := bucket.Get(hash)
if blockHash == nil {
return nil, errors.New(fmt.Sprintf("referenced block %v not found", blockHash))
}
b := bucket.Get(blockHash)
decodedBlock, err := block.Decode(b)
if err != nil {
return decodedBlock, err
}
return decodedBlock, nil
}
func (db *T) GetLastBlock() (*block.Block, error) {
dbtx, err := db.DB.Begin(false)
defer dbtx.Rollback()
if err != nil {
return nil, err
}
bucket := dbtx.Bucket([]byte("blocks"))
if bucket == nil {
return nil, nil
}
last := bucket.Get([]byte("last"))
if last == nil {
return nil, nil
}
b := bucket.Get(last)
if b == nil {
return nil, errors.New("block not found")
}
decodedBlock, err := block.Decode(b)
if err != nil {
return decodedBlock, err
}
return decodedBlock, nil
}