{"id":10,"date":"2026-11-12T10:31:24","date_gmt":"2026-11-12T02:31:24","guid":{"rendered":"https:\/\/www.vecdim.com\/?p=10"},"modified":"2026-11-12T10:32:22","modified_gmt":"2026-11-12T02:32:22","slug":"vdb-1-0-1-0-%e5%8f%91%e5%b8%83%ef%bc%9a%e9%9d%a2%e5%90%91%e7%8e%b0%e4%bb%a3-c-%e7%9a%84-header-only-%e5%b5%8c%e5%85%a5%e5%bc%8f%e9%94%ae%e5%80%bc%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/www.vecdim.com\/index.php\/2026\/11\/12\/vdb-1-0-1-0-%e5%8f%91%e5%b8%83%ef%bc%9a%e9%9d%a2%e5%90%91%e7%8e%b0%e4%bb%a3-c-%e7%9a%84-header-only-%e5%b5%8c%e5%85%a5%e5%bc%8f%e9%94%ae%e5%80%bc%e6%95%b0%e6%8d%ae%e5%ba%93\/","title":{"rendered":"VDB 1.0.1.0 \u53d1\u5e03\uff1a\u9762\u5411\u73b0\u4ee3 C++ \u7684 header-only \u5d4c\u5165\u5f0f\u952e\u503c\u6570\u636e\u5e93"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u7b80\u4ecb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">VDB \u662f\u4e00\u4e2a\u9762\u5411\u8fdb\u7a0b\u5185\u5d4c\u5165\u5f0f\u573a\u666f\u7684\u9ad8\u6027\u80fd\u952e\u503c\u6570\u636e\u5e93\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u4e0e\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u5728\u540c\u4e00\u8fdb\u7a0b\u4e2d\uff1b<\/li>\n\n\n\n<li>\u91c7\u7528\u5185\u5b58\u6620\u5c04\u4e0e\u9875\u5f0f B+ \u6811\uff1b<\/li>\n\n\n\n<li>\u652f\u6301\u591a\u8bfb\u8005\u3001\u5355\u5199 MVCC \u5e76\u53d1\u6a21\u578b\uff1b<\/li>\n\n\n\n<li>\u5199\u8def\u5f84\u901a\u8fc7\u5199\u65f6\u590d\u5236\u4fdd\u8bc1\u65e7\u5feb\u7167\u4e0d\u53d7\u5f71\u54cd\uff1b<\/li>\n\n\n\n<li>\u63d0\u4f9b\u4e8b\u52a1\u63d0\u4ea4\u3001\u56de\u6eda\u3001\u5d4c\u5957\u4e8b\u52a1\u3001\u5b50\u5e93\u548c\u6e38\u6807\uff1b<\/li>\n\n\n\n<li>\u652f\u6301\u6ea2\u51fa\u9875\u3001\u810f\u9875 spill\u3001\u7a7a\u95f2\u9875\u56de\u6536\u548c\u5d29\u6e83\u6062\u590d\uff1b<\/li>\n\n\n\n<li>\u53ef\u9009\u5206\u9875\u52a0\u5bc6\u4e0e\u5b8c\u6574\u6027\u6821\u9a8c\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b58\u50a8\u5f15\u64ce\u6d3e\u751f\u81ea LMDB\uff0c\u516c\u5171\u63a5\u53e3\u5219\u662f\u5168\u65b0\u7684\u73b0\u4ee3 C++ \u8bbe\u8ba1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bbe\u8ba1\u4eae\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u771f\u6b63\u7684\u73b0\u4ee3 C++ \u63a5\u53e3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u5171 API \u4f7f\u7528 C++23 \u8d77\u63d0\u4f9b\u7684\u8bed\u8a00\u8bbe\u65bd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>Env<\/code>\u3001<code>Txn<\/code>\u3001<code>Cursor<\/code> \u4e3a move-only RAII \u53e5\u67c4\uff1b<\/li>\n\n\n\n<li><code>Dbi<\/code> \u662f\u53ef\u62f7\u8d1d\u7684\u8f7b\u91cf\u53e5\u67c4\uff1b<\/li>\n\n\n\n<li>\u8bfb\u53d6\u7ed3\u679c\u4f7f\u7528 <code>std::span<\/code> \u89c6\u56fe\u8868\u8fbe\uff1b<\/li>\n\n\n\n<li>\u53ef\u80fd\u5931\u8d25\u7684\u64cd\u4f5c\u8fd4\u56de <code>std::expected<\/code> \u6216 <code>std::error_code<\/code>\uff1b<\/li>\n\n\n\n<li>\u63a5\u53e3\u5168\u90e8 <code>noexcept<\/code>\uff0c\u4e0d\u901a\u8fc7\u5f02\u5e38\u8de8\u8d8a API \u8fb9\u754c\uff1b<\/li>\n\n\n\n<li>\u652f\u6301\u65e0\u72b6\u6001\u56de\u8c03\u7684\u7f16\u8bd1\u671f\u6865\u63a5\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;vdb\/vdb.hpp&gt;\n\nint main()\n{\n    auto env_result = vdb::Env::create();\n    if (!env_result)\n        return 1;\n\n    auto env = std::move(*env_result);\n    if (env.set_mapsize(4u &lt;&lt; 20u))\n        return 1;\n\n    if (env.open(\"data\",\n                 vdb::env_flags::create | vdb::env_flags::writemap))\n        return 1;\n\n    auto txn_result = env.begin();\n    if (!txn_result)\n        return 1;\n\n    auto txn = std::move(*txn_result);\n    auto dbi_result = txn.open_dbi();\n    if (!dbi_result)\n        return 1;\n\n    const auto dbi = *dbi_result;\n    if (txn.put(dbi, vdb::as_bytes(\"hello\"), vdb::as_bytes(\"vdb\")))\n        return 1;\n\n    return txn.commit() ? 1 : 0;\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. Header-only\uff0c\u96c6\u6210\u7b80\u5355<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">VDB \u6ca1\u6709\u9700\u8981\u7f16\u8bd1\u548c\u94fe\u63a5\u7684\u5e93\u4ea7\u7269\u3002\u6700\u7b80\u5355\u7684\u96c6\u6210\u65b9\u5f0f\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp -r vdb\/ \/path\/to\/your\/include\/\nc++ -std=c++23 -I\/path\/to\/your\/include app.cpp -lpthread<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528 CMake \u7684\u9879\u76ee\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5b89\u88c5\u5bfc\u51fa\u7684\u63a5\u53e3\u76ee\u6807\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>find_package(vdb CONFIG REQUIRED)\ntarget_link_libraries(app PRIVATE vdb::vdb)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u4fdd\u7559\u6210\u719f\u5f15\u64ce\u80fd\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">VDB \u7684\u5e95\u5c42\u5b58\u50a8\u5f15\u64ce\u6cbf\u7528 LMDB \u98ce\u683c\u8bbe\u8ba1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9875\u5f0f B+ \u6811\u4e0e\u56fa\u5b9a\u9875\u683c\u5f0f\uff1b<\/li>\n\n\n\n<li>\u53cc\u5143\u9875\u4ea4\u66ff\u5199\u5165\u4e0e\u5d29\u6e83\u6062\u590d\uff1b<\/li>\n\n\n\n<li>MVCC \u5feb\u7167\u548c\u8bfb\u8005\u69fd\u7ba1\u7406\uff1b<\/li>\n\n\n\n<li>\u5355\u5199\u4e8b\u52a1\u3001\u5d4c\u5957\u548c\u4e8b\u52a1\u56de\u6eda\uff1b<\/li>\n\n\n\n<li>\u6ea2\u51fa\u9875\u7528\u4e8e\u5b58\u50a8\u5927\u503c\uff1b<\/li>\n\n\n\n<li>\u810f\u9875\u9884\u7b97\u63a7\u5236\u4e0e spill\uff1b<\/li>\n\n\n\n<li>\u7a7a\u95f2\u9875\u5ef6\u8fdf\u56de\u6536\uff1b<\/li>\n\n\n\n<li>\u53ef\u9009\u5206\u9875\u52a0\u5bc6\u4e0e\u6821\u9a8c\u548c\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u5de5\u7a0b\u8d28\u91cf\u5185\u7f6e\u5728\u5f00\u53d1\u6d41\u7a0b\u4e2d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u5e03\u7248\u672c\u5305\u542b\u4e24\u9053\u786e\u5b9a\u6027\u56de\u5f52\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>golden \u5b57\u8282\u56de\u5f52<\/strong>\uff1a\u751f\u6210\u7684\u6570\u636e\u6587\u4ef6\u4e0e\u57fa\u51c6\u6837\u672c\u9010\u5b57\u8282\u4e00\u81f4\uff1b<\/li>\n\n\n\n<li><strong>baseline \u884c\u4e3a\u56de\u5f52<\/strong>\uff1a\u8986\u76d6 writemap\u3001prealloc\u3001remap\u3001enc\u3001spill \u4e94\u79cd\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\u8fd8\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ABI contract \u4e0e ABI manifest\uff1b<\/li>\n\n\n\n<li>\u5934\u6587\u4ef6\u81ea\u8db3\u6027\u68c0\u67e5\uff1b<\/li>\n\n\n\n<li>\u591a\u7ffb\u8bd1\u5355\u5143 ODR \u68c0\u67e5\uff1b<\/li>\n\n\n\n<li>\u6545\u969c\u8def\u5f84\u6d4b\u8bd5\uff1b<\/li>\n\n\n\n<li>C++23 \u4e0e C++26 \u53cc\u6807\u51c6\u6784\u5efa\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7248\u672c\u53f7\u8bf4\u660e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u524d\u7248\u672c\u4e3a <strong>1.0.1.0<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7248\u672c\u53f7\u91c7\u7528\u56db\u6bb5\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u524d\u4e09\u6bb5 <code>1.0.1<\/code> \u5bf9\u9f50\u4e0a\u6e38 LMDB \u57fa\u7ebf\uff1b<\/li>\n\n\n\n<li>\u7b2c\u56db\u6bb5 <code>0<\/code> \u8868\u793a VDB \u81ea\u8eab\u5728\u8be5\u57fa\u7ebf\u4e0a\u7684\u4fee\u6539\u7248\u672c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u517c\u5bb9\u6027\u627f\u8bfa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u524d\u7248\u672c\u51bb\u7ed3\u4ee5\u4e0b\u5951\u7ea6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93 page \u683c\u5f0f\uff1b<\/li>\n\n\n\n<li>lock \u6587\u4ef6\u5e03\u5c40\uff1b<\/li>\n\n\n\n<li>\u4e8b\u52a1\u63d0\u4ea4\u4e0e\u56de\u6eda\u8bed\u4e49\uff1b<\/li>\n\n\n\n<li>\u516c\u5171\u53e5\u67c4\u6240\u6709\u6743\u6a21\u578b\uff1b<\/li>\n\n\n\n<li>\u516c\u5171\u503c\u7c7b\u578b\u5e03\u5c40\uff1b<\/li>\n\n\n\n<li>\u9519\u8bef\u7801\u6570\u503c\uff1b<\/li>\n\n\n\n<li>CMake \u5305\u540d <code>vdb::vdb<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e38\u89c4\u7f3a\u9677\u4fee\u590d\u4e0d\u4f1a\u6539\u53d8\u4e0a\u8ff0\u5185\u5bb9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5df2\u77e5\u9650\u5236<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u521d\u59cb\u7248\u672c\u4ecd\u6709\u660e\u786e\u8fb9\u754c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ec5\u652f\u6301 64 \u4f4d\u5e73\u53f0\uff1b<\/li>\n\n\n\n<li>\u9ed8\u8ba4\u9875\u9762\u5927\u5c0f\u4e3a 64KB\uff08\u53ef\u914d\u7f6e\uff09\uff1b<\/li>\n\n\n\n<li>\u5f53\u524d\u9762\u5411 POSIX\uff0c\u5df2\u5728 Cygwin \u4e0e WSL2 \u73af\u5883\u9a8c\u8bc1\uff1b<\/li>\n\n\n\n<li>\u6700\u4f4e\u8981\u6c42 C++23\uff0c\u9ed8\u8ba4\u6784\u5efa\u4f7f\u7528 C++26\uff1b<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u5305\u542b <code>vdb.hpp<\/code> \u7684\u7ffb\u8bd1\u5355\u5143\u90fd\u4f1a\u7f16\u8bd1\u5b8c\u6574 header-only \u5b9e\u73b0\uff1b<\/li>\n\n\n\n<li>\u5e93\u9762\u5411\u5d4c\u5165\u5f0f\u5355\u673a\u573a\u666f\uff0c\u4e0d\u63d0\u4f9b\u7f51\u7edc\u670d\u52a1\u548c\u5206\u5e03\u5f0f\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bb8\u53ef<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">VDB \u7684\u8bb8\u53ef\u5206\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d3e\u751f\u81ea LMDB \u7684\u5b58\u50a8\u5f15\u64ce\u90e8\u5206\u9075\u5faa <strong>OLDAP-2.8<\/strong>\uff1b<\/li>\n\n\n\n<li>\u9879\u76ee\u81ea\u8eab\u7684\u73b0\u4ee3 C++ \u63a5\u53e3\u3001\u91cd\u6784\u3001\u6587\u6863\u4e0e\u6d4b\u8bd5\u9075\u5faa <strong>BSD 3-Clause<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u5206\u53d1\u65f6\u8bf7\u540c\u65f6\u4fdd\u7559 <code>LICENSE<\/code> \u4e0e <code>COPYRIGHT_LMDB<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f8\u5173\u94fe\u63a5<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9879\u76ee\u4e3b\u9875\uff1a<a href=\"https:\/\/vdb.vecdim.com\/\" data-type=\"link\" data-id=\"https:\/\/vdb.vecdim.com\/\">https:\/\/vdb.vecdim.com\/<\/a><\/li>\n\n\n\n<li>GitHub \u4ed3\u5e93\uff1a<a href=\"https:\/\/github.com\/vecdim\/vdb\">https:\/\/github.com\/vecdim\/vdb<\/a><\/li>\n\n\n\n<li>\u5728\u7ebf\u6587\u6863\u4e0e API \u8bf4\u660e\uff1a\u89c1\u4ed3\u5e93 <code>docs\/<\/code> \u76ee\u5f55<br>-\u5feb\u901f\u793a\u4f8b\uff1a<code>examples\/quickstart.cpp<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5f00\u59cb\u4f7f\u7528<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>git clone https:\/\/github.com\/vecdim\/vdb.git\ncd vdb\n\ncmake -S . -B build -DVDB_CXX_STANDARD=26\ncmake --build buildj\nctest --test-dir build --output-on-failure<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u6b63\u5728\u5bfb\u627e\u4e00\u4e2a\u53ef\u4ee5\u76f4\u63a5\u5d4c\u5165 C++ \u670d\u52a1\u3001\u63a5\u53e3\u73b0\u4ee3\u3001\u90e8\u7f72\u7b80\u5355\uff0c\u540c\u65f6\u53c8\u7ee7\u627f LMDB \u5b58\u50a8\u5f15\u64ce\u8bed\u4e49\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u6b22\u8fce\u8bd5\u7528 VDB\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb VDB \u662f\u4e00\u4e2a\u9762\u5411\u8fdb\u7a0b\u5185\u5d4c\u5165\u5f0f\u573a\u666f\u7684\u9ad8\u6027\u80fd\u952e\u503c\u6570\u636e\u5e93\uff1a \u5b58\u50a8\u5f15\u64ce\u6d3e\u751f\u81ea LMDB\uff0c\u516c\u5171\u63a5\u53e3\u5219\u662f\u5168\u65b0\u7684\u73b0\u4ee3 ... <a title=\"VDB 1.0.1.0 \u53d1\u5e03\uff1a\u9762\u5411\u73b0\u4ee3 C++ \u7684 header-only \u5d4c\u5165\u5f0f\u952e\u503c\u6570\u636e\u5e93\" class=\"read-more\" href=\"https:\/\/www.vecdim.com\/index.php\/2026\/11\/12\/vdb-1-0-1-0-%e5%8f%91%e5%b8%83%ef%bc%9a%e9%9d%a2%e5%90%91%e7%8e%b0%e4%bb%a3-c-%e7%9a%84-header-only-%e5%b5%8c%e5%85%a5%e5%bc%8f%e9%94%ae%e5%80%bc%e6%95%b0%e6%8d%ae%e5%ba%93\/\" aria-label=\"\u9605\u8bfb VDB 1.0.1.0 \u53d1\u5e03\uff1a\u9762\u5411\u73b0\u4ee3 C++ \u7684 header-only 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