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/**
 * @copyright
 * ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one
 *    or more contributor license agreements.  See the NOTICE file
 *    distributed with this work for additional information
 *    regarding copyright ownership.  The ASF licenses this file
 *    to you under the Apache License, Version 2.0 (the
 *    "License"); you may not use this file except in compliance
 *    with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an
 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *    KIND, either express or implied.  See the License for the
 *    specific language governing permissions and limitations
 *    under the License.
 * ====================================================================
 * @endcopyright
 *
 * @file Pool.h
 * @brief Interface of the class Pool
 */

#ifndef POOL_H
#define POOL_H

#include "svn_pools.h"

namespace SVN {
  /**
   * This class manages one APR pool.  Objects of this class are
   * allocated on the stack of the SVNClient and SVNAdmin methods as the
   * request pool.  Leaving the methods will destroy the pool.
   */
  class Pool
  {
  public:
    Pool();
    explicit Pool(const Pool &parent_pool);
    Pool(apr_pool_t *parent_pool);
    ~Pool();
    apr_pool_t *getPool() const;
    void clear() const;

  private:
    /**
     * The apr pool request pool.
     */
    apr_pool_t *m_pool;

    /**
     * We declare the assignment operator private here, so that the compiler
     * won't inadvertently use them for us.
     * The default code just copies all the data members, which would create
     * two pointers to the same pool, one of which would get destroyed while
     * the other thought it was still valid...and BOOM!
     *
     * Hence the private declaration.
     */
    Pool &operator=(Pool &that);
  };

  // The following one-line functions are best inlined by the compiler, and
  // need to be implemented in the header file for that to happen.

  inline
  apr_pool_t *Pool::getPool() const
  {
    return m_pool;
  }

  inline
  void Pool::clear() const
  {
    svn_pool_clear(m_pool);
  }
}


#endif // POOL_H