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/*
* Copyright (C) 2018-2019 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 "mock_high_priority_service.hpp"
#include "mock_server_state.hpp"
#include <sstream>
int wsrep::mock_high_priority_service::start_transaction(
const wsrep::ws_handle& ws_handle, const wsrep::ws_meta& ws_meta)
{
return client_state_->start_transaction(ws_handle, ws_meta);
}
int wsrep::mock_high_priority_service::next_fragment(
const wsrep::ws_meta& ws_meta)
{
return client_state_->next_fragment(ws_meta);
}
int wsrep::mock_high_priority_service::adopt_transaction(
const wsrep::transaction& transaction)
{
client_state_->adopt_transaction(transaction);
if (transaction.state() == wsrep::transaction::s_prepared)
{
client_state_->restore_xid(transaction.xid());
}
return 0;
}
int wsrep::mock_high_priority_service::apply_write_set(
const wsrep::ws_meta& meta,
const wsrep::const_buffer&,
wsrep::mutable_buffer& err)
{
assert(client_state_->toi_meta().seqno().is_undefined());
assert(client_state_->transaction().state() == wsrep::transaction::s_executing ||
client_state_->transaction().state() == wsrep::transaction::s_prepared ||
client_state_->transaction().state() == wsrep::transaction::s_replaying);
if (fail_next_applying_)
{
std::ostringstream os;
os << "failed " << meta;
err.push_back(os.str());
assert(err.size() > 0);
return 1;
}
else
{
int ret(0);
if (!(meta.flags() & wsrep::provider::flag::commit))
{
client_state_->fragment_applied(meta.seqno());
}
if ((meta.flags() & wsrep::provider::flag::prepare))
{
client_state_->assign_xid(wsrep::xid(1, 3, 1, "xid"));
ret = client_state_->before_prepare() ||
client_state_->after_prepare();
}
return ret;
};
}
int wsrep::mock_high_priority_service::commit(
const wsrep::ws_handle& ws_handle,
const wsrep::ws_meta& ws_meta)
{
int ret(0);
client_state_->prepare_for_ordering(ws_handle, ws_meta, true);
if (do_2pc_)
{
ret = client_state_->before_prepare() ||
client_state_->after_prepare();
}
const bool is_ordered= !ws_meta.seqno().is_undefined();
if (!is_ordered)
{
client_state_->before_rollback();
client_state_->after_rollback();
return 0;
}
else
{
return (ret || client_state_->before_commit() ||
client_state_->ordered_commit() ||
client_state_->after_commit());
}
}
int wsrep::mock_high_priority_service::rollback(
const wsrep::ws_handle& ws_handle,
const wsrep::ws_meta& ws_meta)
{
client_state_->prepare_for_ordering(ws_handle, ws_meta, false);
return (client_state_->before_rollback() ||
client_state_->after_rollback());
}
int wsrep::mock_high_priority_service::apply_toi(const wsrep::ws_meta&,
const wsrep::const_buffer&,
wsrep::mutable_buffer&)
{
assert(client_state_->transaction().active() == false);
assert(client_state_->toi_meta().seqno().is_undefined() == false);
return (fail_next_toi_ ? 1 : 0);
}
int wsrep::mock_high_priority_service::apply_nbo_begin(
const wsrep::ws_meta& ws_meta,
const wsrep::const_buffer&,
wsrep::mutable_buffer&)
{
const int nbo_begin_flags __attribute__((unused))
(wsrep::provider::flag::isolation |
wsrep::provider::flag::start_transaction);
assert(ws_meta.flags() & nbo_begin_flags);
assert((ws_meta.flags() & ~nbo_begin_flags) == 0);
if (fail_next_toi_)
{
return 1;
}
else
{
nbo_cs_ = std::unique_ptr<wsrep::mock_client>(
new wsrep::mock_client(client_state_->server_state(),
wsrep::client_id(1),
wsrep::client_state::m_local));
nbo_cs_->open(wsrep::client_id(1));
nbo_cs_->before_command();
nbo_cs_->before_statement();
return nbo_cs_->enter_nbo_mode(ws_meta);
}
}
void wsrep::mock_high_priority_service::adopt_apply_error(
wsrep::mutable_buffer& err)
{
client_state_->adopt_apply_error(err);
}
void wsrep::mock_high_priority_service::after_apply()
{
client_state_->after_applying();
}
int wsrep::mock_high_priority_service::log_dummy_write_set(
const wsrep::ws_handle&,
const wsrep::ws_meta&,
wsrep::mutable_buffer& err)
{
return err.size() > 0;
}
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