transaction.hxx

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/*
 * Copyright (C) 2024-2026 David C. Manuelda (StormBytePP)
 *
 * This file is part of StormByte-Database.
 *
 * StormByte-Database original source is dual-licensed:
 *
 * 1. GNU Lesser General Public License v3.0 (or later)
 *    You may redistribute and/or modify this file under the terms of the
 *    GNU Lesser General Public License as published by the Free Software
 *    Foundation, either version 3 of the License, or (at your option)
 *    any later version.
 *
 * 2. Commercial license
 *    Alternatively, this file may be used under the terms of a commercial
 *    license agreement with the copyright holder
 *    (David C. Manuelda <StormByte@gmail.com>).
 *
 * Both licenses apply only to original StormByte-Database source in this
 * repository. They do not cover other StormByte modules or any third-party
 * material shipped with this repository (including everything under
 * thirdparty/, and in particular the bundled StormByte-Logger tree and
 * the PostgreSQL, MariaDB and SQLite trees), which remain under their own
 * licenses.
 *
 * Neither license grants any patent rights. Any patent licenses required
 * to use this software or third-party components must be obtained separately
 * from the patent holders.
 *
 * StormByte-Database 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with StormByte-Database. If not, see
 * <https://www.gnu.org/licenses/lgpl-3.0.html>.
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-StormByte-Commercial
 */
 
#pragma once
 
#include <StormByte/database/visibility.h>
 
#include <StormByte/safe_pointers.hxx>
 
#include <mutex>
 
namespace StormByte {
    namespace Database {
        class Database;
 
        class STORMBYTE_DATABASE_PUBLIC Transaction {
            public:
                explicit Transaction(Database &db);
 
                Transaction(const Transaction &) = delete;
 
                Transaction &operator=(const Transaction &) = delete;
 
                Transaction(Transaction &&other) noexcept;
 
                Transaction &operator=(Transaction &&other) noexcept;
 
                ~Transaction() noexcept;
 
                void Commit();
 
                void Rollback();
 
                bool IsActive() const noexcept {
                    return m_active;
                }
 
            private:
                class ConnectionLock;
                Database *m_db; 
                bool m_active;  
                StormByte::Shared<std::recursive_mutex> m_mutex; 
                bool m_lock_held; 
 
                void ReleaseLock() noexcept;
        };
    }
}