blockchain_export: Support BerkeleyDB

TEST:

blockchain_export -h

This should show "berkeley" as an available option to --database.

With an existing BerkeleyDB database, run:

blockchain_export --database berkeley
This commit is contained in:
warptangent 2016-03-05 06:37:47 -08:00
parent 41487e32be
commit 0485d17274
No known key found for this signature in database
GPG key ID: 0E490BEBFBE4E92D

View file

@ -31,13 +31,40 @@
#include "common/command_line.h"
#include "blockchain_db/blockchain_db.h"
#include "blockchain_db/lmdb/db_lmdb.h"
#if defined(BERKELEY_DB)
#include "blockchain_db/berkeleydb/db_bdb.h"
#endif
#include "blockchain_db/db_types.h"
#include "version.h"
namespace po = boost::program_options;
using namespace epee; // log_space
std::string join_set_strings(const std::unordered_set<std::string>& db_types_all, const char* delim)
{
std::string result;
std::ostringstream s;
std::copy(db_types_all.begin(), db_types_all.end(), std::ostream_iterator<std::string>(s, delim));
result = s.str();
if (result.length() > 0)
result.erase(result.end()-strlen(delim), result.end());
return result;
}
int main(int argc, char* argv[])
{
#if defined(BLOCKCHAIN_DB) && (BLOCKCHAIN_DB == DB_MEMORY)
std::string default_db_type = "memory";
#else
std::string default_db_type = "lmdb";
#endif
std::unordered_set<std::string> db_types_all = cryptonote::blockchain_db_types;
db_types_all.insert("memory");
std::string available_dbs = join_set_strings(db_types_all, ", ");
available_dbs = "available: " + available_dbs;
uint32_t log_level = 0;
uint64_t block_stop = 0;
bool blocks_dat = false;
@ -58,6 +85,9 @@ int main(int argc, char* argv[])
, "Run on testnet."
, false
};
const command_line::arg_descriptor<std::string> arg_database = {
"database", available_dbs.c_str(), default_db_type
};
const command_line::arg_descriptor<bool> arg_blocks_dat = {"blocksdat", "Output in blocks.dat format", blocks_dat};
@ -66,6 +96,7 @@ int main(int argc, char* argv[])
command_line::add_arg(desc_cmd_sett, arg_output_file);
command_line::add_arg(desc_cmd_sett, arg_testnet_on);
command_line::add_arg(desc_cmd_sett, arg_log_level);
command_line::add_arg(desc_cmd_sett, arg_database);
command_line::add_arg(desc_cmd_sett, arg_block_stop);
command_line::add_arg(desc_cmd_sett, arg_blocks_dat);
@ -107,6 +138,20 @@ int main(int argc, char* argv[])
auto data_dir_arg = opt_testnet ? command_line::arg_testnet_data_dir : command_line::arg_data_dir;
m_config_folder = command_line::get_arg(vm, data_dir_arg);
std::string db_type = command_line::get_arg(vm, arg_database);
if (db_types_all.count(db_type) == 0)
{
std::cerr << "Invalid database type: " << db_type << std::endl;
return 1;
}
#if !defined(BERKELEY_DB)
if (db_type == "berkeley")
{
LOG_ERROR("BerkeleyDB support disabled.");
return false;
}
#endif
if (command_line::has_arg(vm, arg_output_file))
output_file_path = boost::filesystem::path(command_line::get_arg(vm, arg_output_file));
else
@ -138,17 +183,33 @@ int main(int argc, char* argv[])
tx_memory_pool m_mempool(*core_storage);
core_storage = new Blockchain(m_mempool);
BlockchainDB* db = new BlockchainLMDB();
int db_flags = 0;
BlockchainDB* db = nullptr;
if (db_type == "lmdb")
{
db_flags |= MDB_RDONLY;
db = new BlockchainLMDB();
}
#if defined(BERKELEY_DB)
else if (db_type == "berkeley")
db = new BlockchainBDB();
#endif
else
{
LOG_ERROR("Attempted to use non-existent database type: " << db_type);
throw std::runtime_error("Attempting to use non-existent database type");
}
LOG_PRINT_L0("database: " << db_type);
boost::filesystem::path folder(m_config_folder);
folder /= db->get_db_name();
int lmdb_flags = 0;
lmdb_flags |= MDB_RDONLY;
const std::string filename = folder.string();
LOG_PRINT_L0("Loading blockchain from folder " << filename << " ...");
try
{
db->open(filename, lmdb_flags);
db->open(filename, db_flags);
}
catch (const std::exception& e)
{