1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one
3  * or more contributor license agreements. See the NOTICE file
4  * distributed with this work for additional information
5  * regarding copyright ownership. The ASF licenses this file
6  * to you under the Apache License, Version 2.0 (the  "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  *     http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 
19 #if !defined(XALANELEMTEXTLITERALALLOCATOR_INCLUDE_GUARD_12455133)
20 #define XALANELEMTEXTLITERALALLOCATOR_INCLUDE_GUARD_12455133
21 
22 
23 
24 // Base include file.  Must be first.
25 #include <xalanc/XSLT/XSLTDefinitions.hpp>
26 
27 
28 
29 #include <xalanc/XSLT/ElemTextLiteral.hpp>
30 
31 
32 
33 #include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp>
34 
35 
36 
37 namespace XALAN_CPP_NAMESPACE {
38 
39 
40 
41 class XALAN_XSLT_EXPORT XalanElemTextLiteralAllocator
42 {
43 public:
44 
45     typedef ElemTextLiteral                     data_type;
46 
47 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS)
48     typedef ArenaBlock<data_type>               ArenaBlockType;
49     typedef ArenaAllocator<data_type,
50                            ArenaBlockType>      ArenaAllocatorType;
51 #else
52     typedef ArenaAllocator<data_type>           ArenaAllocatorType;
53 #endif
54 
55     typedef ArenaAllocatorType::size_type       size_type;
56 
57     /**
58      * Construct an instance that will allocate blocks of the specified size.
59      *
60      * @param theBlockSize The block size.
61      */
62     XalanElemTextLiteralAllocator(
63             MemoryManager&  theManager,
64             size_type           theBlockCount);
65 
66     ~XalanElemTextLiteralAllocator();
67 
68     /**
69      * Construct an instance
70      *
71      * @param constructionContext   context for construction of object
72      * @param stylesheetTree        stylesheet containing element
73      * @param lineNumber            line number in document
74      * @param columnNumber          column number in document
75      * @param ch                    pointer to character string for element
76      * @param start                 starting offset of element
77      * @param length                number of characters in element
78      * @param preserveSpace         true is space should be preserved
79      * @param disableOutputEscaping true if output escaping should be disabled
80      *
81      * @return A pointer to the new instance.
82      */
83     data_type*
84     create(
85             StylesheetConstructionContext&  constructionContext,
86             Stylesheet&                     stylesheetTree,
87             XalanFileLoc                    lineNumber,
88             XalanFileLoc                    columnNumber,
89             const XalanDOMChar*             ch,
90             XalanDOMString::size_type       start,
91             XalanDOMString::size_type       length,
92             bool                            preserveSpace,
93             bool                            disableOutputEscaping);
94 
95     /**
96      * Determine if an object is owned by the allocator...
97      */
98     bool
ownsObject(const data_type * theObject)99     ownsObject(const data_type*     theObject)
100     {
101         return m_allocator.ownsObject(theObject);
102     }
103 
104     /**
105      * Delete all objects from the allocator.
106      */
107     void
reset()108     reset()
109     {
110         m_allocator.reset();
111     }
112 
113     /**
114      * Get the number of ArenaBlocks currently allocated.
115      *
116      * @return The number of blocks.
117      */
118     size_type
getBlockCount() const119     getBlockCount() const
120     {
121         return m_allocator.getBlockCount();
122     }
123 
124     /**
125      * Get size of an ArenaBlock, that is, the number
126      * of objects in each block.
127      *
128      * @return The size of the block
129      */
130     size_type
getBlockSize() const131     getBlockSize() const
132     {
133         return m_allocator.getBlockSize();
134     }
135 
136 private:
137 
138     // Not implemented...
139     XalanElemTextLiteralAllocator(const XalanElemTextLiteralAllocator&);
140 
141     XalanElemTextLiteralAllocator&
142     operator=(const XalanElemTextLiteralAllocator&);
143 
144     // Data members...
145     ArenaAllocatorType  m_allocator;
146 };
147 
148 
149 
150 }
151 
152 
153 
154 #endif  // XALANELEMTEXTLITERALALLOCATOR_INCLUDE_GUARD_12455133
155