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(XALANELEMCALLTEMPLATEALLOCATOR_INCLUDE_GUARD_12455133)
20 #define XALANELEMCALLTEMPLATEALLOCATOR_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/ElemCallTemplate.hpp>
30 
31 
32 
33 #include <xalanc/PlatformSupport/ArenaAllocator.hpp>
34 
35 
36 
37 namespace XALAN_CPP_NAMESPACE {
38 
39 
40 
41 class XALAN_XSLT_EXPORT XalanElemCallTemplateAllocator
42 {
43 public:
44 
45     typedef ElemCallTemplate                    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     XalanElemCallTemplateAllocator(
63             MemoryManager&  theManager,
64             size_type           theBlockCount);
65 
66     ~XalanElemCallTemplateAllocator();
67 
68     /**
69      * Construct an instance
70      *
71      * @param constructionContext context for construction of object
72      * @param stylesheetTree      stylesheet containing element
73      * @param atts                list of attributes for element
74      * @param lineNumber                line number in document
75      * @param columnNumber          column number in document
76      *
77      * @return A pointer to the new instance.
78      */
79     data_type*
80     create(
81             StylesheetConstructionContext&  constructionContext,
82             Stylesheet&                     stylesheetTree,
83             const AttributeListType&        atts,
84             XalanFileLoc                    lineNumber,
85             XalanFileLoc                    columnNumber);
86 
87     /**
88      * Determine if an object is owned by the allocator...
89      */
90     bool
ownsObject(const data_type * theObject)91     ownsObject(const data_type*     theObject)
92     {
93         return m_allocator.ownsObject(theObject);
94     }
95 
96     /**
97      * Delete all objects from the allocator.
98      */
99     void
reset()100     reset()
101     {
102         m_allocator.reset();
103     }
104 
105     /**
106      * Get the number of ArenaBlocks currently allocated.
107      *
108      * @return The number of blocks.
109      */
110     size_type
getBlockCount() const111     getBlockCount() const
112     {
113         return m_allocator.getBlockCount();
114     }
115 
116     /**
117      * Get size of an ArenaBlock, that is, the number
118      * of objects in each block.
119      *
120      * @return The size of the block
121      */
122     size_type
getBlockSize() const123     getBlockSize() const
124     {
125         return m_allocator.getBlockSize();
126     }
127 
128 private:
129 
130     // Not implemented...
131     XalanElemCallTemplateAllocator(const XalanElemCallTemplateAllocator&);
132 
133     XalanElemCallTemplateAllocator&
134     operator=(const XalanElemCallTemplateAllocator&);
135 
136     // Data members...
137     ArenaAllocatorType  m_allocator;
138 };
139 
140 
141 
142 }
143 
144 
145 
146 #endif  // XALANELEMCALLTEMPLATEALLOCATOR_INCLUDE_GUARD_12455133
147