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60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
// Copyright 2008, Google Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef KML_BASE_MEMORY_FILE_H__
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#define KML_BASE_MEMORY_FILE_H__
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#include "boost/intrusive_ptr.hpp"
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#include "kml/base/referent.h"
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#include "kml/base/util.h"
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namespace kmlbase {
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// This NetCache CacheItem is a utility class used to represent file contents
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// cached in memory. The intended usage is as follows:
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// NetCache<YourNetFetcher, MemoryFile> memory_file_net_cache;
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// MemoryFile memory_file = memory_file_net_cache.Fetch(url);
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// const string& file_content = memory_file.get_content();
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class MemoryFile : public Referent {
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public:
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static MemoryFile* CreateFromString(const string& data) {
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return new MemoryFile(data);
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}
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const string& get_content() const {
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return content_;
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}
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private:
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MemoryFile(const string& content) : content_(content) {}
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string content_;
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};
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typedef boost::intrusive_ptr<MemoryFile> MemoryFilePtr;
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} // end namespace kmlbase
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#endif // KML_BASE_MEMORY_FILE_H__
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