| /* |
| * 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(XALAN_DOMSTRINGCACHE_HEADER_GUARD) |
| #define XALAN_DOMSTRINGCACHE_HEADER_GUARD |
| |
| |
| |
| // Base include file. Must be first. |
| #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp> |
| |
| |
| |
| #include <xalanc/Include/XalanVector.hpp> |
| |
| |
| |
| #include <xalanc/XalanDOM/XalanDOMString.hpp> |
| |
| |
| |
| #include <xalanc/PlatformSupport/XalanDOMStringReusableAllocator.hpp> |
| |
| |
| |
| XALAN_CPP_NAMESPACE_BEGIN |
| |
| |
| |
| class XALAN_PLATFORMSUPPORT_EXPORT XalanDOMStringCache |
| { |
| public: |
| |
| enum { eDefaultMaximumSize = 100 }; |
| |
| typedef XalanVector<XalanDOMString*> StringListType; |
| |
| explicit |
| XalanDOMStringCache(MemoryManagerType& theManager, |
| unsigned int theMaximumSize = eDefaultMaximumSize); |
| |
| ~XalanDOMStringCache(); |
| |
| unsigned int |
| getMaximumSize() const |
| { |
| return m_maximumSize; |
| } |
| |
| void |
| setMaximumSize(unsigned int theSize) |
| { |
| m_maximumSize = theSize; |
| } |
| |
| XalanDOMString& |
| get(); |
| |
| bool |
| release(XalanDOMString& theString); |
| |
| /* |
| * Clear all of the strings in the cache. This |
| * destroys all of the strings. |
| * |
| */ |
| void |
| clear(); |
| |
| /* |
| * Reset the cache so that all strings that are |
| * currently in use are available. |
| */ |
| void |
| reset(); |
| |
| class GetAndRelease |
| { |
| public: |
| |
| GetAndRelease(XalanDOMStringCache& theCache) : |
| m_cache(theCache), |
| m_string(&theCache.get()) |
| { |
| } |
| |
| ~GetAndRelease() |
| { |
| m_cache.release(*m_string); |
| } |
| |
| XalanDOMString& |
| get() const |
| { |
| return *m_string; |
| } |
| |
| private: |
| |
| XalanDOMStringCache& m_cache; |
| |
| XalanDOMString* const m_string; |
| }; |
| |
| private: |
| |
| // not implemented |
| XalanDOMStringCache(const XalanDOMStringCache&); |
| |
| bool |
| operator==(const XalanDOMStringCache&) const; |
| |
| XalanDOMStringCache& |
| operator=(const XalanDOMStringCache&); |
| |
| /** |
| * A list to hold the strings that are available... |
| */ |
| StringListType m_availableList; |
| |
| /** |
| * A list to hold the strings that are busy... |
| */ |
| StringListType m_busyList; |
| |
| unsigned int m_maximumSize; |
| |
| XalanDOMStringReusableAllocator m_allocator; |
| }; |
| |
| |
| |
| XALAN_CPP_NAMESPACE_END |
| |
| |
| |
| #endif // XALAN_RESULTNAMESPACESSTACK_HEADER_GUARD |