Example #1
0
// addFileContract adds a file contract to the database. An error is returned
// if the file contract is already in the database.
func addFileContract(tx *bolt.Tx, id types.FileContractID, fc types.FileContract) {
	// Add the file contract to the database.
	fcBucket := tx.Bucket(FileContracts)
	// Sanity check - should not be adding a zero-payout file contract.
	if build.DEBUG && fc.Payout.IsZero() {
		panic("adding zero-payout file contract")
	}
	// Sanity check - should not be adding a file contract already in the db.
	if build.DEBUG && fcBucket.Get(id[:]) != nil {
		panic("repeat file contract")
	}
	err := fcBucket.Put(id[:], encoding.Marshal(fc))
	if build.DEBUG && err != nil {
		panic(err)
	}

	// Add an entry for when the file contract expires.
	expirationBucketID := append(prefixFCEX, encoding.Marshal(fc.WindowEnd)...)
	expirationBucket, err := tx.CreateBucketIfNotExists(expirationBucketID)
	if build.DEBUG && err != nil {
		panic(err)
	}
	err = expirationBucket.Put(id[:], []byte{})
	if build.DEBUG && err != nil {
		panic(err)
	}
}
Example #2
0
// updateDbMetadata will set the contents of the metadata bucket to be
// what is stored inside the metadata argument
func (db *BoltDatabase) updateMetadata(tx *bolt.Tx) error {
	bucket, err := tx.CreateBucketIfNotExists([]byte("Metadata"))
	if err != nil {
		return err
	}
	err = bucket.Put([]byte("Header"), []byte(db.Header))
	if err != nil {
		return err
	}
	err = bucket.Put([]byte("Version"), []byte(db.Version))
	if err != nil {
		return err
	}
	return nil
}