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/*
* Copyright (C) 2018 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even 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 wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#include "wsrep/provider.hpp"
#include "wsrep/logger.hpp"
#include "wsrep_provider_v26.hpp"
#include <dlfcn.h>
#include <cassert>
#include <memory>
wsrep::provider* wsrep::provider::make_provider(
wsrep::server_state& server_state,
const std::string& provider_spec,
const std::string& provider_options,
const wsrep::provider::services& services)
{
try
{
return new wsrep::wsrep_provider_v26(
server_state, provider_options, provider_spec, services);
}
catch (const wsrep::runtime_error& e)
{
wsrep::log_error() << "Failed to create a new provider '"
<< provider_spec << "'"
<< " with options '" << provider_options
<< "': " << e.what();
}
catch (...)
{
wsrep::log_error() << "Caught unknown exception when trying to "
<< "create a new provider '"
<< provider_spec << "'"
<< " with options '" << provider_options;
}
return 0;
}
std::string
wsrep::provider::to_string(enum wsrep::provider::status const val)
{
switch(val)
{
case success:
return "Success";
case error_warning:
return "Warning";
case error_transaction_missing:
return "Transaction not registered with provider";
case error_certification_failed:
return "Certification failed";
case error_bf_abort:
return "Transaction was BF aborted";
case error_size_exceeded:
return "Transaction size exceeded";
case error_connection_failed:
return "Not connected to Primary Component";
case error_provider_failed:
return "Provider in bad state, needs to be reinitialized.";
case error_fatal:
return "Fatal error, must abort.";
case error_not_implemented:
return "Function not implemented";
case error_not_allowed:
return "Operation not allowed";
case error_unknown:
return "Unknown error";
}
assert(0);
std::ostringstream os;
os << "Invalid error code: " << val;
return os.str();
}
std::string wsrep::provider::capability::str(int caps)
{
std::ostringstream os;
#define WSREP_PRINT_CAPABILITY(cap_value, cap_string) \
if (caps & cap_value) { \
os << cap_string ", "; \
caps &= ~cap_value; \
}
WSREP_PRINT_CAPABILITY(multi_master, "MULTI-MASTER");
WSREP_PRINT_CAPABILITY(certification, "CERTIFICATION");
WSREP_PRINT_CAPABILITY(parallel_applying, "PARALLEL_APPLYING");
WSREP_PRINT_CAPABILITY(transaction_replay, "REPLAY");
WSREP_PRINT_CAPABILITY(isolation, "ISOLATION");
WSREP_PRINT_CAPABILITY(pause, "PAUSE");
WSREP_PRINT_CAPABILITY(causal_reads, "CAUSAL_READ");
WSREP_PRINT_CAPABILITY(causal_transaction, "CAUSAL_TRX");
WSREP_PRINT_CAPABILITY(incremental_writeset, "INCREMENTAL_WS");
WSREP_PRINT_CAPABILITY(session_locks, "SESSION_LOCK");
WSREP_PRINT_CAPABILITY(distributed_locks, "DISTRIBUTED_LOCK");
WSREP_PRINT_CAPABILITY(consistency_check, "CONSISTENCY_CHECK");
WSREP_PRINT_CAPABILITY(unordered, "UNORDERED");
WSREP_PRINT_CAPABILITY(annotation, "ANNOTATION");
WSREP_PRINT_CAPABILITY(preordered, "PREORDERED");
WSREP_PRINT_CAPABILITY(streaming, "STREAMING");
WSREP_PRINT_CAPABILITY(snapshot, "READ_VIEW");
WSREP_PRINT_CAPABILITY(nbo, "NBO");
#undef WSREP_PRINT_CAPABILITY
if (caps)
{
assert(caps == 0); // to catch missed capabilities
os << "UNKNOWN(" << caps << ") ";
}
std::string ret(os.str());
if (ret.size() > 2) ret.erase(ret.size() - 2);
return ret;
}
std::string wsrep::flags_to_string(int flags)
{
std::ostringstream oss;
if (flags & provider::flag::start_transaction)
oss << "start_transaction | ";
if (flags & provider::flag::commit)
oss << "commit | ";
if (flags & provider::flag::rollback)
oss << "rollback | ";
if (flags & provider::flag::isolation)
oss << "isolation | ";
if (flags & provider::flag::pa_unsafe)
oss << "pa_unsafe | ";
if (flags & provider::flag::prepare)
oss << "prepare | ";
if (flags & provider::flag::snapshot)
oss << "read_view | ";
if (flags & provider::flag::implicit_deps)
oss << "implicit_deps | ";
std::string ret(oss.str());
if (ret.size() > 3) ret.erase(ret.size() - 3);
return ret;
}
std::ostream& wsrep::operator<<(std::ostream& os, const wsrep::ws_meta& ws_meta)
{
os << "gtid: " << ws_meta.gtid()
<< " server_id: " << ws_meta.server_id()
<< " client_id: " << ws_meta.client_id()
<< " trx_id: " << ws_meta.transaction_id()
<< " flags: " << ws_meta.flags()
<< " (" << wsrep::flags_to_string(ws_meta.flags()) << ")";
return os;
}
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