mirror of
https://github.com/codership/wsrep-lib.git
synced 2025-10-31 06:50:26 +03:00
3b3429d8df
Use pointers to pass state objects to service constructors to work around GCC 12 warning error: member ‘wsrep::mock_storage_service::client_state_’ is used uninitialized
121 lines
3.1 KiB
C++
121 lines
3.1 KiB
C++
/*
|
|
* 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 "db_storage_engine.hpp"
|
|
#include "db_client.hpp"
|
|
|
|
#include <cassert>
|
|
|
|
void db::storage_engine::transaction::start(db::client* cc)
|
|
{
|
|
wsrep::unique_lock<wsrep::mutex> lock(se_.mutex_);
|
|
if (se_.transactions_.insert(cc).second == false)
|
|
{
|
|
::abort();
|
|
}
|
|
cc_ = cc;
|
|
}
|
|
|
|
void db::storage_engine::transaction::apply(
|
|
const wsrep::transaction& transaction)
|
|
{
|
|
assert(cc_);
|
|
se_.bf_abort_some(transaction);
|
|
}
|
|
|
|
void db::storage_engine::transaction::commit(const wsrep::gtid& gtid)
|
|
{
|
|
if (cc_)
|
|
{
|
|
wsrep::unique_lock<wsrep::mutex> lock(se_.mutex_);
|
|
se_.transactions_.erase(cc_);
|
|
se_.store_position(gtid);
|
|
}
|
|
cc_ = nullptr;
|
|
}
|
|
|
|
|
|
void db::storage_engine::transaction::rollback()
|
|
{
|
|
if (cc_)
|
|
{
|
|
wsrep::unique_lock<wsrep::mutex> lock(se_.mutex_);
|
|
se_.transactions_.erase(cc_);
|
|
}
|
|
cc_ = nullptr;
|
|
}
|
|
|
|
void db::storage_engine::bf_abort_some(const wsrep::transaction& txc)
|
|
{
|
|
std::uniform_int_distribution<size_t> uniform_dist(0, alg_freq_);
|
|
wsrep::unique_lock<wsrep::mutex> lock(mutex_);
|
|
if (alg_freq_ && uniform_dist(random_engine_) == 0)
|
|
{
|
|
if (transactions_.empty() == false)
|
|
{
|
|
for (auto victim : transactions_)
|
|
{
|
|
wsrep::client_state& cc(victim->client_state());
|
|
if (cc.mode() == wsrep::client_state::m_local)
|
|
{
|
|
if (victim->bf_abort(txc.seqno()))
|
|
{
|
|
++bf_aborts_;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void db::storage_engine::store_position(const wsrep::gtid& gtid)
|
|
{
|
|
validate_position(gtid);
|
|
position_ = gtid;
|
|
}
|
|
|
|
wsrep::gtid db::storage_engine::get_position() const
|
|
{
|
|
return position_;
|
|
}
|
|
|
|
void db::storage_engine::store_view(const wsrep::view& view)
|
|
{
|
|
view_ = view;
|
|
}
|
|
|
|
wsrep::view db::storage_engine::get_view() const
|
|
{
|
|
return view_;
|
|
}
|
|
|
|
void db::storage_engine::validate_position(const wsrep::gtid& gtid) const
|
|
{
|
|
if (position_.id() == gtid.id() && gtid.seqno() <= position_.seqno())
|
|
{
|
|
std::ostringstream os;
|
|
os << "Invalid position submitted, position seqno "
|
|
<< position_.seqno()
|
|
<< " is greater than submitted seqno "
|
|
<< gtid.seqno();
|
|
throw wsrep::runtime_error(os.str());
|
|
}
|
|
}
|