Merge eth-go repository into go-ethereum

mist, etheruem have been moved to cmd/

1 files changed, 73 insertions, 0 deletions

diff --git a/ethdb/database.go b/ethdb/database.go
new file mode 100644
index 000000000..de3afd74b
--- /dev/null
+++ b/ethdb/database.go
@@ -0,0 +1,73 @@
+package ethdb
+
+import (
+	"fmt"
+	"path"
+
+	"github.com/ethereum/go-ethereum/ethutil"
+	"github.com/syndtr/goleveldb/leveldb"
+)
+
+type LDBDatabase struct {
+	db *leveldb.DB
+}
+
+func NewLDBDatabase(name string) (*LDBDatabase, error) {
+	dbPath := path.Join(ethutil.Config.ExecPath, name)
+
+	// Open the db
+	db, err := leveldb.OpenFile(dbPath, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	database := &LDBDatabase{db: db}
+
+	return database, nil
+}
+
+func (db *LDBDatabase) Put(key []byte, value []byte) {
+	err := db.db.Put(key, value, nil)
+	if err != nil {
+		fmt.Println("Error put", err)
+	}
+}
+
+func (db *LDBDatabase) Get(key []byte) ([]byte, error) {
+	return db.db.Get(key, nil)
+}
+
+func (db *LDBDatabase) Delete(key []byte) error {
+	return db.db.Delete(key, nil)
+}
+
+func (db *LDBDatabase) Db() *leveldb.DB {
+	return db.db
+}
+
+func (db *LDBDatabase) LastKnownTD() []byte {
+	data, _ := db.db.Get([]byte("LTD"), nil)
+
+	if len(data) == 0 {
+		data = []byte{0x0}
+	}
+
+	return data
+}
+
+func (db *LDBDatabase) Close() {
+	// Close the leveldb database
+	db.db.Close()
+}
+
+func (db *LDBDatabase) Print() {
+	iter := db.db.NewIterator(nil, nil)
+	for iter.Next() {
+		key := iter.Key()
+		value := iter.Value()
+
+		fmt.Printf("%x(%d): ", key, len(key))
+		node := ethutil.NewValueFromBytes(value)
+		fmt.Printf("%v\n", node)
+	}
+}