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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <cstdint>
#include <initializer_list>
#include <memory>
#include "mongo/db/jsobj.h"
#include "mongo/db/operation_context_noop.h"
#include "mongo/db/record_id.h"
#include "mongo/db/service_context.h"
#include "mongo/db/service_context_noop.h"
#include "mongo/db/storage/sorted_data_interface.h"
#include "mongo/stdx/functional.h"
#include "mongo/stdx/memory.h"
#include "mongo/util/unowned_ptr.h"
namespace mongo {
class HarnessHelper {
public:
virtual ~HarnessHelper() = 0;
explicit HarnessHelper() = default;
virtual ServiceContext::UniqueOperationContext newOperationContext(Client* const client) {
auto opCtx = client->makeOperationContext();
opCtx->setRecoveryUnit(newRecoveryUnit().release(), OperationContext::kNotInUnitOfWork);
return opCtx;
}
virtual ServiceContext::UniqueOperationContext newOperationContext() {
return newOperationContext(_client.get());
}
Client* client() const {
return _client.get();
}
ServiceContext* serviceContext() {
return &_serviceContext;
}
const ServiceContext* serviceContext() const {
return &_serviceContext;
}
private:
virtual std::unique_ptr<RecoveryUnit> newRecoveryUnit() = 0;
ServiceContextNoop _serviceContext;
ServiceContext::UniqueClient _client = _serviceContext.makeClient("hh");
};
namespace harness_helper_detail {
template <typename Target, typename Current>
std::unique_ptr<Target> noexcept_ptr_conversion(std::unique_ptr<Current>&& p, Target& t) noexcept {
p.release();
return std::unique_ptr<Target>(std::addressof(t));
}
} // namespace harness_helper_detail
extern void registerHarnessHelperFactory(stdx::function<std::unique_ptr<HarnessHelper>()> factory);
template <typename Target, typename Current>
std::unique_ptr<Target> dynamic_ptr_cast(std::unique_ptr<Current>&& p) {
if (!p) {
throw std::runtime_error("Must not be null.");
}
Target& target = dynamic_cast<Target&>(*p);
return harness_helper_detail::noexcept_ptr_conversion(std::move(p), target);
}
std::unique_ptr<HarnessHelper> newHarnessHelper();
} // namespace mongo
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