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XNumberAllocator.hpp

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00001 /*
00002  * Copyright 1999-2004 The Apache Software Foundation.
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #if !defined(XNUMBERALLOCATOR_INCLUDE_GUARD_135792455)
00018 #define XNUMBERALLOCATOR_INCLUDE_GUARD_135792455
00019 
00020 
00021 
00022 // Base include file.  Must be first.
00023 #include <xalanc/XPath/XPathDefinitions.hpp>
00024 
00025 
00026 
00027 #include <xalanc/XPath/XNumber.hpp>
00028 
00029 
00030 
00031 #include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp>
00032 
00033 
00034 
00035 XALAN_CPP_NAMESPACE_BEGIN
00036 
00037 
00038 
00039 class XALAN_XPATH_EXPORT XNumberAllocator
00040 {
00041 public:
00042 
00043     typedef XNumber         number_type;
00044 
00045     typedef ReusableArenaAllocator<number_type>     ArenaAllocatorType;
00046     typedef ArenaAllocatorType::size_type           size_type;
00047 
00053     XNumberAllocator(MemoryManagerType&      theManager, size_type  theBlockCount);
00054 
00055     ~XNumberAllocator();
00056 
00064     number_type*
00065     createNumber(double     theNumber);
00066 
00067 
00071     bool
00072     destroy(number_type*    theNumber);
00073 
00077     bool
00078     ownsObject(const number_type*   theObject)
00079     {
00080         return m_allocator.ownsObject(theObject);
00081     }
00082     
00086     void
00087     reset();
00088 
00095     size_type
00096     getBlockCount() const
00097     {
00098         return m_allocator.getBlockCount();
00099     }
00100 
00106     size_type
00107     getBlockSize() const
00108     {
00109         return m_allocator.getBlockSize();
00110     }
00111 
00112 private:
00113 
00114     // Not implemented...
00115     XNumberAllocator(const XNumberAllocator&);
00116 
00117     XNumberAllocator&
00118     operator=(const XNumberAllocator&);
00119 
00120     // Data members...
00121     ArenaAllocatorType  m_allocator;
00122 };
00123 
00124 
00125 
00126 XALAN_CPP_NAMESPACE_END
00127 
00128 
00129 
00130 #endif  // XNUMBERALLOCATOR_INCLUDE_GUARD_135792455

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