{"id":1428,"date":"2018-06-20T20:34:16","date_gmt":"2018-06-20T12:34:16","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1428"},"modified":"2018-06-20T20:34:16","modified_gmt":"2018-06-20T12:34:16","slug":"c%e4%b8%ad%e7%94%a8boost%e5%ae%9e%e7%8e%b0%e5%85%b1%e4%ba%ab%e5%86%85%e5%ad%98%e5%88%9b%e5%bb%bamap%e5%ae%b9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1428","title":{"rendered":"c++\u4e2d\u7528boost\u5b9e\u73b0\u5171\u4eab\u5185\u5b58\u521b\u5efamap\u5bb9\u5668"},"content":{"rendered":"
\n

c++\u4e2d\u7528boost\u5b9e\u73b0\u5171\u4eab\u5185\u5b58\u521b\u5efamap\u5bb9\u5668<\/h1>\n<\/div>\n
\n
2016\u5e7402\u670826\u65e5 15:00:58<\/span><\/p>\n
\u9605\u8bfb\u6570\uff1a2217<\/span><\/div>\n<\/div>\n<\/div>\n
\n
\n
\n
\n
\n
[cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n
<\/embed><\/div>\n
<\/embed><\/div>\n<\/div>\n<\/div>\n
    \n
  1. #include\u00a0<boost\/interprocess\/managed_shared_memory.hpp><\/span><\/li>\n
  2. #include\u00a0<boost\/interprocess\/allocators\/allocator.hpp><\/span><\/li>\n
  3. #include\u00a0<boost\/interprocess\/containers\/map.hpp><\/span><\/li>\n
  4. #include\u00a0<boost\/interprocess\/containers\/string.hpp><\/span><\/li>\n
  5. #include\u00a0<iostream><\/span><\/li>\n
  6. <\/li>\n
  7. using<\/span>\u00a0namespace<\/span>\u00a0boost::interprocess;<\/li>\n
  8. using<\/span>\u00a0std::cout;<\/li>\n
  9. using<\/span>\u00a0std::endl;<\/li>\n
  10. <\/li>\n
  11. \/\/\u7c7b\u578b\u548callocator\u7684\u5b9a\u4e49\uff0c\u4f7f\u7528\u5171\u4eab\u5185\u5b58\u65f6\u9700\u8981\u4f7f\u7528boost::interprocess\u4e2d<\/span><\/li>\n
  12. \/\/\u91cd\u65b0\u5b9e\u73b0\u7684\u5bb9\u5668\u800c\u4e0d\u80fd\u4f7f\u7528\u6807\u51c6\u5bb9\u5668<\/span><\/li>\n
  13. typedef<\/span>\u00a0managed_shared_memory::segment_manager\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0segment_manager_t;<\/li>\n
  14. typedef<\/span>\u00a0allocator<void<\/span>,\u00a0segment_manager_t>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0void_allocator;<\/li>\n
  15. <\/li>\n
  16. \/*–\u00a0\u81ea\u5b9a\u4e49string\u6570\u636e\u7c7b\u578b\u00a0–*\/<\/span><\/li>\n
  17. typedef<\/span>\u00a0allocator<char<\/span>,\u00a0segment_manager_t>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0char_allocator;<\/li>\n
  18. typedef<\/span>\u00a0basic_string<char<\/span>,\u00a0std::char_traits<char<\/span>>,\u00a0char_allocator>\u00a0\u00a0\u00a0char_string;<\/li>\n
  19. <\/li>\n
  20. \/*–\u00a0\u81ea\u5b9a\u4e49map<string,\u00a0string>\u6570\u636e\u7c7b\u578b\u00a0–*\/<\/span><\/li>\n
  21. typedef<\/span>\u00a0std::pair<const<\/span>\u00a0char_string,\u00a0char_string>\u00a0string_string_value_type;<\/li>\n
  22. typedef<\/span>\u00a0allocator<string_string_value_type,\u00a0segment_manager_t>\u00a0string_string_map_allocator;<\/li>\n
  23. typedef<\/span>\u00a0map<char_string,\u00a0char_string,\u00a0std::less<char_string>,\u00a0string_string_map_allocator>\u00a0\u00a0string_string_map;<\/li>\n
  24. <\/li>\n
  25. \/*–\u00a0\u81ea\u5b9a\u4e49map<string,\u00a0map<string,\u00a0string>>\u00a0–*\/<\/span><\/li>\n
  26. typedef<\/span>\u00a0std::pair<const<\/span>\u00a0char_string,\u00a0string_string_map>\u00a0string_string_string_value_type;<\/li>\n
  27. typedef<\/span>\u00a0allocator<string_string_string_value_type,\u00a0segment_manager_t>\u00a0string_string_string_map_allocator;<\/li>\n
  28. typedef<\/span>\u00a0map<char_string,\u00a0string_string_map,\u00a0std::less<char_string>,\u00a0string_string_string_map_allocator>\u00a0\u00a0string_string_string_map;<\/li>\n
  29. <\/li>\n
  30. int<\/span>\u00a0main()<\/li>\n
  31. {<\/li>\n
  32. \u00a0\u00a0\u00a0\u00a0\/*\u00a0—\u521b\u5efa\u5171\u4eab\u5185\u5b58\uff0c\u5e76\u521b\u5efamap—\u00a0*\/<\/span><\/li>\n
  33. <\/li>\n
  34. \u00a0\u00a0\u00a0\u00a0\/\/\u79fb\u9664\u5171\u4eab\u5185\u5b58<\/span><\/li>\n
  35. \u00a0\u00a0\u00a0\u00a0shared_memory_object::remove(“MySharedMemory”<\/span>);<\/li>\n
  36. \u00a0\u00a0\u00a0\u00a0\/\/\u521b\u5efa\u5171\u4eab\u5185\u5b58\uff0c\u5e76\u6307\u5b9a\u540d\u79f0\u548c\u5927\u5c0f<\/span><\/li>\n
  37. \u00a0\u00a0\u00a0\u00a0managed_shared_memory\u00a0segment(open_or_create,\u00a0“MySharedMemory”<\/span>,\u00a0102400);<\/li>\n
  38. <\/li>\n
  39. \u00a0\u00a0\u00a0\u00a0void_allocator\u00a0alloc_inst(segment.get_segment_manager());<\/li>\n
  40. <\/li>\n
  41. \u00a0\u00a0\u00a0\u00a0\/\/\u5728\u5171\u4eab\u5185\u5b58\u4e0a\u6784\u5efastring_string_string_map\uff0c\u5e76\u8fd4\u56de\u6307\u9488<\/span><\/li>\n
  42. \u00a0\u00a0\u00a0\u00a0string_string_string_map\u00a0*table_map\u00a0=\u00a0segment.construct<string_string_string_map>(“table_map”<\/span>)(std::less<char_string>(),\u00a0alloc_inst);<\/li>\n
  43. <\/li>\n
  44. \u00a0\u00a0\u00a0\u00a0\/\/\u6784\u5efa\u81ea\u5b9a\u4e49string<\/span><\/li>\n
  45. \u00a0\u00a0\u00a0\u00a0char_string\u00a0\u00a0key_key_string(“tag”<\/span>,\u00a0alloc_inst);<\/li>\n
  46. \u00a0\u00a0\u00a0\u00a0char_string\u00a0\u00a0key_string(“fvalue”<\/span>,\u00a0alloc_inst);<\/li>\n
  47. \u00a0\u00a0\u00a0\u00a0char_string\u00a0\u00a0value_string(“tag_fvalue”<\/span>,\u00a0alloc_inst);<\/li>\n
  48. <\/li>\n
  49. \u00a0\u00a0\u00a0\u00a0\/\/\u6784\u5efa\u81ea\u5b9a\u4e49map<string,\u00a0string>\u7684\u952e\u503c\u5bf9\uff0c\u4e0d\u80fd\u591f\u4f7f\u7528std::string<\/span><\/li>\n
  50. \u00a0\u00a0\u00a0\u00a0string_string_value_type\u00a0\u00a0ss_map_value(key_string,\u00a0value_string);<\/li>\n
  51. <\/li>\n
  52. \u00a0\u00a0\u00a0\u00a0\/\/\u5728\u5171\u4eab\u5185\u5b58\u4e0a\u6784\u5efastring_string_map\u5e76\u8fd4\u56de\u6307\u9488<\/span><\/li>\n
  53. \u00a0\u00a0\u00a0\u00a0string_string_map\u00a0*col_map\u00a0=\u00a0segment.construct<string_string_map><\/li>\n
  54. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(“tag_fvalue”<\/span>)(std::less<char_string>(),\u00a0alloc_inst);<\/li>\n
  55. <\/li>\n
  56. \u00a0\u00a0\u00a0\u00a0col_map->insert(ss_map_value);<\/li>\n
  57. <\/li>\n
  58. \u00a0\u00a0\u00a0\u00a0\/\/\u6784\u5efa\u81ea\u5b9a\u4e49map<string,\u00a0map<string,\u00a0string>>\u7684\u952e\u503c\u5bf9<\/span><\/li>\n
  59. \u00a0\u00a0\u00a0\u00a0string_string_string_value_type\u00a0sss_map_value(key_key_string,\u00a0*col_map);<\/li>\n
  60. <\/li>\n
  61. \u00a0\u00a0\u00a0\u00a0table_map->insert(sss_map_value);<\/li>\n
  62. <\/li>\n
  63. \u00a0\u00a0\u00a0\u00a0\/*\u00a0—\u8bfb\u53d6\u5171\u4eab\u5185\u5b58\uff0c\u5e76\u89e3\u6790map—\u00a0*\/<\/span><\/li>\n
  64. \u00a0\u00a0\u00a0\u00a0managed_shared_memory\u00a0segment1(open_or_create,\u00a0“MySharedMemory”<\/span>,\u00a0102400);<\/li>\n
  65. <\/li>\n
  66. \u00a0\u00a0\u00a0\u00a0string_string_string_map\u00a0*table_map2\u00a0=\u00a0segment1.find<string_string_string_map>(“table_map”<\/span>).first;<\/li>\n
  67. <\/li>\n
  68. \u00a0\u00a0\u00a0\u00a0\/\/\u521b\u5efa\u5bf9\u5e94\u8fed\u4ee3\u5668<\/span><\/li>\n
  69. \u00a0\u00a0\u00a0\u00a0string_string_string_map::iterator\u00a0sss_ite;<\/li>\n
  70. \u00a0\u00a0\u00a0\u00a0string_string_map::iterator\u00a0ss_ite;<\/li>\n
  71. <\/li>\n
  72. \u00a0\u00a0\u00a0\u00a0char_string\u00a0key_name1(“tag”<\/span>,\u00a0alloc_inst);<\/li>\n
  73. \u00a0\u00a0\u00a0\u00a0char_string\u00a0key_name2(“fvalue”<\/span>,\u00a0alloc_inst);<\/li>\n
  74. <\/li>\n
  75. \u00a0\u00a0\u00a0\u00a0\/\/\u4ecemap\u4e2d\u904d\u5386\u6570\u636e\uff0c\u4e0estl\u7684map\u4e00\u81f4<\/span><\/li>\n
  76. \u00a0\u00a0\u00a0\u00a0sss_ite\u00a0=\u00a0table_map2->find(key_name1);<\/li>\n
  77. <\/li>\n
  78. \u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(sss_ite\u00a0!=\u00a0table_map2->end())<\/li>\n
  79. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
  80. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout\u00a0<<\u00a0sss_ite->first\u00a0<<\u00a0endl;<\/li>\n
  81. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ss_ite\u00a0=\u00a0sss_ite->second.find(key_name2);<\/li>\n
  82. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout\u00a0<<\u00a0ss_ite->second\u00a0<<\u00a0endl;<\/li>\n
  83. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
  84. <\/li>\n
  85. \u00a0\u00a0\u00a0\u00a0return<\/span>\u00a00;<\/li>\n
  86. }<\/li>\n<\/ol>\n<\/div>\n

    \u770b\u4e86\u5173\u4e8eboost\u5b9e\u73b0\u5171\u4eab\u5185\u5b58\u548cboost\u5728\u5171\u4eab\u5185\u5b58\u4e2d\u521b\u5efavector\u7684\u5e16\u5b50\uff0c\u4f46\u662f\u6ca1\u6709\u53d1\u73b0\u6709\u5d4c\u5957map\u7684\u8d44\u6599\uff0c\u5c31\u628a\u4ee5\u524d\u5199\u7684\u4f8b\u5b50\u8d34\u51fa\u6765\u4e86\u3002<\/p><\/div>\n<\/div>\n<\/article>\n

    \n
    \u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u672a\u7ecf\u535a\u4e3b\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\u3002 https:\/\/blog.csdn.net\/u010087712\/article\/details\/50686417<\/div>\n
    \u4e2a\u4eba\u5206\u7c7b\uff1a<\/span>\u00a0\u7f16\u7a0b\u6280\u5de7<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    c++\u4e2d\u7528boost\u5b9e\u73b0\u5171\u4eab\u5185\u5b58\u521b\u5efama<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-1428","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=1428"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1428\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=1428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=1428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=1428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}