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| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="geometry.spatial_indexes.rtree_examples.index_stored_in_mapped_file_using_boost_interprocess"></a><a class="link" href="index_stored_in_mapped_file_using_boost_interprocess.html" title="Index stored in mapped file using Boost.Interprocess">Index |
| stored in mapped file using Boost.Interprocess</a> |
| </h4></div></div></div> |
| <p> |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> |
| |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">interprocess</span><span class="special">/</span><span class="identifier">managed_mapped_file</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">point</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">index</span><span class="special">/</span><span class="identifier">rtree</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">bi</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">interprocess</span><span class="special">;</span> |
| <span class="keyword">namespace</span> <span class="identifier">bg</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">;</span> |
| <span class="keyword">namespace</span> <span class="identifier">bgm</span> <span class="special">=</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">model</span><span class="special">;</span> |
| <span class="keyword">namespace</span> <span class="identifier">bgi</span> <span class="special">=</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">index</span><span class="special">;</span> |
| |
| <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">bgm</span><span class="special">::</span><span class="identifier">point</span><span class="special"><</span><span class="keyword">float</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">></span> <span class="identifier">point_t</span><span class="special">;</span> |
| |
| <span class="keyword">typedef</span> <span class="identifier">point_t</span> <span class="identifier">value_t</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">linear</span><span class="special"><</span><span class="number">32</span><span class="special">,</span> <span class="number">8</span><span class="special">></span> <span class="identifier">params_t</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">indexable</span><span class="special"><</span><span class="identifier">value_t</span><span class="special">></span> <span class="identifier">indexable_t</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">equal_to</span><span class="special"><</span><span class="identifier">value_t</span><span class="special">></span> <span class="identifier">equal_to_t</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">bi</span><span class="special">::</span><span class="identifier">allocator</span><span class="special"><</span><span class="identifier">value_t</span><span class="special">,</span> <span class="identifier">bi</span><span class="special">::</span><span class="identifier">managed_mapped_file</span><span class="special">::</span><span class="identifier">segment_manager</span><span class="special">></span> <span class="identifier">allocator_t</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">rtree</span><span class="special"><</span><span class="identifier">value_t</span><span class="special">,</span> <span class="identifier">params_t</span><span class="special">,</span> <span class="identifier">indexable_t</span><span class="special">,</span> <span class="identifier">equal_to_t</span><span class="special">,</span> <span class="identifier">allocator_t</span><span class="special">></span> <span class="identifier">rtree_t</span><span class="special">;</span> |
| |
| <span class="special">{</span> |
| <span class="identifier">bi</span><span class="special">::</span><span class="identifier">managed_mapped_file</span> <span class="identifier">file</span><span class="special">(</span><span class="identifier">bi</span><span class="special">::</span><span class="identifier">open_or_create</span><span class="special">,</span> <span class="string">"data.bin"</span><span class="special">,</span> <span class="number">1024</span><span class="special">*</span><span class="number">1024</span><span class="special">);</span> |
| <span class="identifier">allocator_t</span> <span class="identifier">alloc</span><span class="special">(</span><span class="identifier">file</span><span class="special">.</span><span class="identifier">get_segment_manager</span><span class="special">());</span> |
| <span class="identifier">rtree_t</span> <span class="special">*</span> <span class="identifier">rtree_ptr</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">find_or_construct</span><span class="special"><</span><span class="identifier">rtree_t</span><span class="special">>(</span><span class="string">"rtree"</span><span class="special">)(</span><span class="identifier">params_t</span><span class="special">(),</span> <span class="identifier">indexable_t</span><span class="special">(),</span> <span class="identifier">equal_to_t</span><span class="special">(),</span> <span class="identifier">alloc</span><span class="special">);</span> |
| |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">size</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| |
| <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">point_t</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">));</span> |
| <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">point_t</span><span class="special">(</span><span class="number">2.0</span><span class="special">,</span> <span class="number">2.0</span><span class="special">));</span> |
| |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">size</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="special">{</span> |
| <span class="identifier">bi</span><span class="special">::</span><span class="identifier">managed_mapped_file</span> <span class="identifier">file</span><span class="special">(</span><span class="identifier">bi</span><span class="special">::</span><span class="identifier">open_or_create</span><span class="special">,</span> <span class="string">"data.bin"</span><span class="special">,</span> <span class="number">1024</span><span class="special">*</span><span class="number">1024</span><span class="special">);</span> |
| <span class="identifier">allocator_t</span> <span class="identifier">alloc</span><span class="special">(</span><span class="identifier">file</span><span class="special">.</span><span class="identifier">get_segment_manager</span><span class="special">());</span> |
| <span class="identifier">rtree_t</span> <span class="special">*</span> <span class="identifier">rtree_ptr</span> <span class="special">=</span> <span class="identifier">file</span><span class="special">.</span><span class="identifier">find_or_construct</span><span class="special"><</span><span class="identifier">rtree_t</span><span class="special">>(</span><span class="string">"rtree"</span><span class="special">)(</span><span class="identifier">params_t</span><span class="special">(),</span> <span class="identifier">indexable_t</span><span class="special">(),</span> <span class="identifier">equal_to_t</span><span class="special">(),</span> <span class="identifier">alloc</span><span class="special">);</span> |
| |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">size</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| |
| <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">point_t</span><span class="special">(</span><span class="number">3.0</span><span class="special">,</span> <span class="number">3.0</span><span class="special">));</span> |
| <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">point_t</span><span class="special">(</span><span class="number">4.0</span><span class="special">,</span> <span class="number">4.0</span><span class="special">));</span> |
| |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">rtree_ptr</span><span class="special">-></span><span class="identifier">size</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| </pre> |
| <p> |
| </p> |
| <h5> |
| <a name="geometry.spatial_indexes.rtree_examples.index_stored_in_mapped_file_using_boost_interprocess.h0"></a> |
| <span class="phrase"><a name="geometry.spatial_indexes.rtree_examples.index_stored_in_mapped_file_using_boost_interprocess.expected_results"></a></span><a class="link" href="index_stored_in_mapped_file_using_boost_interprocess.html#geometry.spatial_indexes.rtree_examples.index_stored_in_mapped_file_using_boost_interprocess.expected_results">Expected |
| results</a> |
| </h5> |
| <pre class="programlisting"><span class="number">0</span> |
| <span class="number">2</span> |
| <span class="number">2</span> |
| <span class="number">4</span> |
| </pre> |
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| Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
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