Steps toward multiple dbs available -- working

There will need to be some more refactoring for these changes to be
considered complete/correct, but for now it's working.

new daemon cli argument "--db-type", works for LMDB and BerkeleyDB.

A good deal of refactoring is also present in this commit, namely
Blockchain no longer instantiates BlockchainDB, but rather is passed a
pointer to an already-instantiated BlockchainDB on init().

1 files changed, 15 insertions, 0 deletions

diff --git a/src/daemon/main.cpp b/src/daemon/main.cpp
index 5d8baf497..3bad70378 100644
--- a/src/daemon/main.cpp
+++ b/src/daemon/main.cpp
@@ -42,6 +42,7 @@
 #include "rpc/core_rpc_server.h"
 #include <boost/program_options.hpp>
 #include "daemon/command_line_args.h"
+#include "blockchain_db/db_types.h"
 
 namespace po = boost::program_options;
 namespace bf = boost::filesystem;
@@ -78,6 +79,7 @@ int main(int argc, char const * argv[])
       command_line::add_arg(core_settings, daemon_args::arg_log_level);
       command_line::add_arg(core_settings, daemon_args::arg_testnet_on);
       command_line::add_arg(core_settings, daemon_args::arg_dns_checkpoints);
+      command_line::add_arg(core_settings, daemon_args::arg_db_type);
       daemonizer::init_options(hidden_options, visible_options);
       daemonize::t_executor::init_options(core_settings);
 
@@ -128,6 +130,19 @@ int main(int argc, char const * argv[])
       return 0;
     }
 
+    std::string db_type = command_line::get_arg(vm, daemon_args::arg_db_type);
+
+    // verify that blockchaindb type is valid
+    if(cryptonote::blockchain_db_types.count(db_type) == 0)
+    {
+      std::cout << "Invalid database type (" << db_type << "), available types are:" << std::endl;
+      for (const auto& type : cryptonote::blockchain_db_types)
+      {
+        std::cout << "\t" << type << std::endl;
+      }
+      return 0;
+    }
+
     bool testnet_mode = command_line::get_arg(vm, daemon_args::arg_testnet_on);
 
     auto data_dir_arg = testnet_mode ? command_line::arg_testnet_data_dir : command_line::arg_data_dir;