Exemplo n.º 1
0
// createDSCOBucket creates a bucket for the delayed siacoin outputs at the
// input height.
func createDSCOBucket(tx *bolt.Tx, bh types.BlockHeight) {
	bucketID := append(prefixDSCO, encoding.Marshal(bh)...)
	_, err := tx.CreateBucket(bucketID)
	if build.DEBUG && err != nil {
		panic(err)
	}
}
Exemplo n.º 2
0
// createConsensusObjects initialzes the consensus portions of the database.
func (cs *ConsensusSet) createConsensusDB(tx *bolt.Tx) error {
	// Enumerate and create the database buckets.
	buckets := [][]byte{
		BlockHeight,
		BlockMap,
		BlockPath,
		Consistency,
		SiacoinOutputs,
		FileContracts,
		SiafundOutputs,
		SiafundPool,
	}
	for _, bucket := range buckets {
		_, err := tx.CreateBucket(bucket)
		if err != nil {
			return err
		}
	}

	// Set the block height to -1, so the genesis block is at height 0.
	blockHeight := tx.Bucket(BlockHeight)
	underflow := types.BlockHeight(0)
	err := blockHeight.Put(BlockHeight, encoding.Marshal(underflow-1))
	if err != nil {
		return err
	}

	// Set the siafund pool to 0.
	setSiafundPool(tx, types.NewCurrency64(0))

	// Update the siafund output diffs map for the genesis block on disk. This
	// needs to happen between the database being opened/initilized and the
	// consensus set hash being calculated
	for _, sfod := range cs.blockRoot.SiafundOutputDiffs {
		commitSiafundOutputDiff(tx, sfod, modules.DiffApply)
	}

	// Add the miner payout from the genesis block to the delayed siacoin
	// outputs - unspendable, as the unlock hash is blank.
	createDSCOBucket(tx, types.MaturityDelay)
	addDSCO(tx, types.MaturityDelay, cs.blockRoot.Block.MinerPayoutID(0), types.SiacoinOutput{
		Value:      types.CalculateCoinbase(0),
		UnlockHash: types.UnlockHash{},
	})

	// Add the genesis block to the block strucutres - checksum must be taken
	// after pushing the genesis block into the path.
	pushPath(tx, cs.blockRoot.Block.ID())
	if build.DEBUG {
		cs.blockRoot.ConsensusChecksum = consensusChecksum(tx)
	}
	addBlockMap(tx, &cs.blockRoot)
	return nil
}
Exemplo n.º 3
0
// resetDB deletes all consensus related persistence from the transaction pool.
func (tp *TransactionPool) resetDB(tx *bolt.Tx) error {
	err := tx.DeleteBucket(bucketConfirmedTransactions)
	if err != nil {
		return err
	}
	err = tp.putRecentConsensusChange(tx, modules.ConsensusChangeBeginning)
	if err != nil {
		return err
	}
	_, err = tx.CreateBucket(bucketConfirmedTransactions)
	return err
}
Exemplo n.º 4
0
// createChangeLog assumes that no change log exists and creates a new one.
func (cs *ConsensusSet) createChangeLog(tx *bolt.Tx) error {
	// Create the changelog bucket.
	cl, err := tx.CreateBucket(ChangeLog)
	if err != nil {
		return err
	}

	// Add the genesis block as the first entry of the change log.
	ge := cs.genesisEntry()
	geid := ge.ID()
	cn := changeNode{
		Entry: ge,
		Next:  modules.ConsensusChangeID{},
	}
	err = cl.Put(geid[:], encoding.Marshal(cn))
	if err != nil {
		return err
	}
	err = cl.Put(ChangeLogTailID, geid[:])
	if err != nil {
		return err
	}
	return nil
}