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### The Xalan C++ XSLT Processor Version 1.9

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# XalanDOMStringReusableAllocator.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(XALANDOMSTRINGREUSABLEALLOCATOR_INCLUDE_GUARD_12455133)
    00018 #define XALANDOMSTRINGREUSABLEALLOCATOR_INCLUDE_GUARD_12455133
    00019
    00020
    00021
    00022 // Base include file.  Must be first.
    00023 #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp>
    00024
    00025
    00026
    00027 #include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp>
    00028
    00029
    00030
    00031 #include <xalanc/XalanDOM/XalanDOMString.hpp>
    00032
    00033
    00034
    00035 XALAN_CPP_NAMESPACE_BEGIN
    00036
    00037
    00038
    00039 class XALAN_PLATFORMSUPPORT_EXPORT XalanDOMStringReusableAllocator
    00040 {
    00041 public:
    00042
    00043     typedef XalanDOMString                  data_type;
    00044     typedef data_type::size_type            data_type_size_type;
    00045
    00046 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS)
    00047     typedef ReusableArenaBlock<data_type>   ArenaBlockType;
    00048
    00049     typedef ReusableArenaBlock<data_type,
    00050                            ArenaBlockType>  ArenaAllocatorType;
    00051 #else
    00052     typedef ReusableArenaAllocator<data_type>   ArenaAllocatorType;
    00053 #endif
    00054
    00055     typedef ArenaAllocatorType::size_type   size_type;
    00056
    00057     enum { eDefaultBlockSize = 32 };
    00058
    00059
    00065     XalanDOMStringReusableAllocator(MemoryManagerType&      theManager, size_type   theBlockCount);
    00066
    00067     ~XalanDOMStringReusableAllocator();
    00068
    00074     data_type&
    00075     create();
    00076
    00085     data_type&
    00086     create(
    00087             const char*             theString,
    00088 #if defined(_MSC_VER) && (_MSC_VER <= 1300)
    00089             // $$$ ToDo: Some strange bug in MSVC++ complains when using data_type::npos here.
    00090             data_type_size_type     theCount = data_type_size_type(-1));
    00091 #else
    00092             data_type_size_type     theCount = data_type_size_type(data_type::npos));
    00093 #endif
    00094
    00104     data_type&
    00105     create(
    00106             const data_type&        theSource,
    00107             data_type_size_type     theStartPosition = 0,
    00108             data_type_size_type     theCount = data_type_size_type(data_type::npos));
    00109
    00118     data_type&
    00119     create(
    00120             const XalanDOMChar*     theString,
    00121             data_type_size_type     theCount = data_type_size_type(data_type::npos));
    00122
    00131     data_type&
    00132     create(
    00133             data_type_size_type     theCount,
    00134             XalanDOMChar            theChar);
    00135
    00136     /*
    00137      * Destroy a XalanDOMString object.
    00138      *
    00139      */
    00140     bool
    00141     destroy(XalanDOMString&     theDOMString)
    00142     {
    00143         return m_allocator.destroyObject(&theDOMString);
    00144     }
    00145
    00149     bool
    00150     ownsObject(const data_type*     theObject)
    00151     {
    00152         return m_allocator.ownsObject(theObject);
    00153     }
    00154
    00158     void
    00159     reset()
    00160     {
    00161         m_allocator.reset();
    00162     }
    00163
    00169     size_type
    00170     getBlockCount() const
    00171     {
    00172         return m_allocator.getBlockCount();
    00173     }
    00174
    00181     size_type
    00182     getBlockSize() const
    00183     {
    00184         return m_allocator.getBlockSize();
    00185     }
    00186
    00193     MemoryManagerType&
    00194     getMemoryManager()
    00195     {
    00196         return m_allocator.getMemoryManager();
    00197     }
    00198
    00205     const MemoryManagerType&
    00206     getMemoryManager() const
    00207     {
    00208         return m_allocator.getMemoryManager();
    00209     }
    00210
    00211 private:
    00212
    00213     // Not implemented...
    00214     XalanDOMStringReusableAllocator(const XalanDOMStringReusableAllocator&);
    00215
    00216     XalanDOMStringReusableAllocator&
    00217     operator=(const XalanDOMStringReusableAllocator&);
    00218
    00219     // Data members...
    00220     ArenaAllocatorType  m_allocator;
    00221 };
    00222
    00223
    00224
    00225 XALAN_CPP_NAMESPACE_END
    00226
    00227
    00228
    00229 #endif  // XALANDOMSTRINGREUSABLEALLOCATOR_INCLUDE_GUARD_12455133

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Xalan-C++ XSLT Processor Version 1.9 Copyright © 1999-2004 The Apache Software Foundation. All Rights Reserved.