1 |
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2 | #include<iostream>
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3 | #include<utility>
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4 | #include<functional>
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5 |
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6 | #include <boost/interprocess/allocators/allocator.hpp>
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7 | #include <boost/interprocess/managed_mapped_file.hpp>
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8 | #include <boost/bimap.hpp>
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9 |
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10 | int main(int argc, char** argv) {
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11 |
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12 | typedef int key_t;
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13 | typedef int pay_t;
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14 |
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15 | typedef typename std::pair<key_t, pay_t> val_t;
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16 |
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17 | typedef boost::interprocess::managed_mapped_file segment_t;
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18 | typedef segment_t::segment_manager segment_manager_t;
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19 |
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20 | typedef boost::interprocess::allocator< val_t, segment_manager_t> allocator_t;
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21 |
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22 | typedef boost::bimaps::bimap< key_t, pay_t, allocator_t> map_t;
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23 |
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24 | {
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25 | std::cout << "Writing" << std::endl;
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26 | segment_t segment(boost::interprocess::open_or_create,"scratch.bimap",10000);
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27 | allocator_t allocator(segment.get_segment_manager());
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28 |
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29 | map_t* map = segment.find_or_construct<map_t>("bimap")(allocator);
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30 |
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31 | std::cout << "There were " << map->size() << " relations" << std::endl;
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32 | for( map_t::const_iterator iter = map->begin(); iter != map->end(); ++iter ) {
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33 | std::cout << iter->left << " <--> " << iter->right << std::endl;
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34 | }
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35 |
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36 | map->insert( map_t::value_type(1, 'z' ) );
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37 | map->insert( map_t::value_type(2, 'Z' ) );
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38 |
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39 | std::cout << "There are " << map->size() << " relations" << std::endl;
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40 | for( map_t::const_iterator iter = map->begin(), iend = map->end();
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41 | iter != iend; ++iter ) {
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42 | std::cout << iter->left << " <--> " << iter->right << std::endl;
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43 | }
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44 | }
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45 |
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46 | {
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47 | std::cout << "Reading" << std::endl;
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48 | segment_t* segment = new segment_t(boost::interprocess::open_read_only,"scratch.bimap");
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49 | allocator_t* allocator = new allocator_t(segment->get_segment_manager());
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50 |
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51 | map_t* map = segment->find<map_t>("bimap").first;
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52 |
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53 | std::cout << "There were " << map->size() << " relations" << std::endl;
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54 | for( map_t::const_iterator iter = map->begin(); iter != map->end(); ++iter ) {
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55 | std::cout << iter->left << " <--> " << iter->right << std::endl;
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56 | }
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57 |
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58 | delete allocator;
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59 | delete segment;
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60 | }
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61 |
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62 | // segment_t::shrink_to_fit("scratch.bimap");
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63 |
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64 | return 0;
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65 | }
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