From d3bcd89f6436e500caadd4cb4680ffeedf4080b3 Mon Sep 17 00:00:00 2001
From: Jude Nelson <judecn@gmail.com>
Date: Sat, 9 Mar 2019 18:55:54 -0500
Subject: [PATCH] stub out a block database and a state database for the stacks
 blockchain

---
 src/chainstate/stacks/db/blockdb.rs | 36 +++++++++++++++++++++++++++++
 src/chainstate/stacks/db/mod.rs     | 21 +++++++++++++++++
 src/chainstate/stacks/db/statedb.rs | 22 ++++++++++++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 src/chainstate/stacks/db/blockdb.rs
 create mode 100644 src/chainstate/stacks/db/mod.rs
 create mode 100644 src/chainstate/stacks/db/statedb.rs

diff --git a/src/chainstate/stacks/db/blockdb.rs b/src/chainstate/stacks/db/blockdb.rs
new file mode 100644
index 000000000..c8df2dd8b
--- /dev/null
+++ b/src/chainstate/stacks/db/blockdb.rs
@@ -0,0 +1,36 @@
+/*
+ copyright: (c) 2013-2019 by Blockstack PBC, a public benefit corporation.
+
+ This file is part of Blockstack.
+
+ Blockstack is free software. You may redistribute or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License or
+ (at your option) any later version.
+
+ Blockstack is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY, including without the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Blockstack. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+use rusqlite::{Connection, OpenFlags, NO_PARAMS};
+use rusqlite::types::ToSql;
+use rusqlite::Row;
+use rusqlite::Transaction;
+
+use std::fs;
+use std::convert::From;
+use std::marker::PhantomData;
+
+use chainstate::{FromRow, RowOrder};
+use chainstate::ChainstateDB;
+use chainstate::Error as db_error;
+
+use util::log;
+use util::hash::{to_hex, hex_bytes, Hash160};
+
+
diff --git a/src/chainstate/stacks/db/mod.rs b/src/chainstate/stacks/db/mod.rs
new file mode 100644
index 000000000..c28ba5a7b
--- /dev/null
+++ b/src/chainstate/stacks/db/mod.rs
@@ -0,0 +1,21 @@
+/*
+ copyright: (c) 2013-2019 by Blockstack PBC, a public benefit corporation.
+
+ This file is part of Blockstack.
+
+ Blockstack is free software. You may redistribute or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License or
+ (at your option) any later version.
+
+ Blockstack is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY, including without the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Blockstack. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+pub mod blockdb;
+pub mod statedb;
diff --git a/src/chainstate/stacks/db/statedb.rs b/src/chainstate/stacks/db/statedb.rs
new file mode 100644
index 000000000..1e36451e0
--- /dev/null
+++ b/src/chainstate/stacks/db/statedb.rs
@@ -0,0 +1,22 @@
+/*
+ copyright: (c) 2013-2019 by Blockstack PBC, a public benefit corporation.
+
+ This file is part of Blockstack.
+
+ Blockstack is free software. You may redistribute or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License or
+ (at your option) any later version.
+
+ Blockstack is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY, including without the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Blockstack. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// HAMT?
+// updateable history tree?
+// -- on insert, update pointer to latest account version by address