libxalan-c-dev 1.11-3 / usr / include / xalanc / XPath / XPathAllocator.hpp

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/usr/include/xalanc/XPath/XPathAllocator.hpp is in libxalan-c-dev 1.11-3.

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/*
 * 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.
 */

#if !defined(XPATHALLOCATOR_INCLUDE_GUARD_135792455)
#define XPATHALLOCATOR_INCLUDE_GUARD_135792455



// Base include file.  Must be first.
#include <xalanc/XPath/XPathDefinitions.hpp>



#include <xalanc/PlatformSupport/ArenaAllocator.hpp>



#include <xalanc/XPath/XPath.hpp>



XALAN_CPP_NAMESPACE_BEGIN



class XALAN_XPATH_EXPORT XPathAllocator
{
public:

    typedef XPath                           object_type;

#if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS)
    typedef ArenaBlock<object_type>         ArenaBlockType;

    typedef ArenaAllocator<object_type,
                           ArenaBlockType>  ArenaAllocatorType;
#else
    typedef ArenaAllocator<object_type>     ArenaAllocatorType;
#endif

    typedef ArenaAllocatorType::size_type   size_type;

    /**
     * Construct an instance that will allocate blocks of the specified size.
     *
     * @param theBlockSize The block size.
     */
    XPathAllocator(MemoryManager&      theManager, size_type    theBlockCount);

    ~XPathAllocator();

    /**
     * Create an XPath object using the allocator.
     * 
     * @return a pointer to an XPath
     */
    object_type*
    create();

    /**
     * Determine if an object is owned by the allocator...
     */
    bool
    ownsObject(const object_type*   theObject)
    {
        return m_allocator.ownsObject(theObject);
    }

    /**
     * Delete all XPath objects allocated.   
     */ 
    void
    reset();

    /**
     * Get the number of objects in each block.
     *
     * @return The size of the block
     */
    size_type
    getBlockCount() const
    {
        return m_allocator.getBlockCount();
    }

    /**
     * Get the number of blocks currently allocated.
     *
     * @return The number of blocks.
     */
    size_type
    getBlockSize() const
    {
        return m_allocator.getBlockSize();
    }

private:

    // Not implemented...
    XPathAllocator(const XPathAllocator&);

    XPathAllocator&
    operator=(const XPathAllocator&);

    // Data members...
    ArenaAllocatorType  m_allocator;
};



XALAN_CPP_NAMESPACE_END



#endif  // XNUMBERALLOCATOR_INCLUDE_GUARD_135792455

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