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<li class="navelem"><a class="el" href="dir_17297ffb27ce571941f5fb5008f01a1f.html">dl</a></li><li class="navelem"><a class="el" href="dir_d483d22d183a78db490f3ff6a4a958eb.html">math</a></li> </ul>
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<a href="#nested-classes">类</a> |
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<a href="#namespaces">命名空间</a> |
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<a href="#typedef-members">类型定义</a> |
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<a href="#var-members">变量</a> </div>
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<div class="headertitle"><div class="title">dl_guid.h 文件参考</div></div>
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</div><!--header-->
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<div class="contents">
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<p>唯一标识符
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<a href="#details">更多...</a></p>
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<div class="textblock"><code>#include <array></code><br />
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<code>#include "<a class="el" href="dl__type_8h_source.html">dl_type.h</a>"</code><br />
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<code>#include "<a class="el" href="dl__math_8h_source.html">math/dl_math.h</a>"</code><br />
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<code>#include "<a class="el" href="dl__time_8h_source.html">system/dl_time.h</a>"</code><br />
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</div>
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<p><a href="dl__guid_8h_source.html">浏览该文件的源代码.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
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类</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classdl_1_1_uid_generator.html">dl::UidGenerator</a></td></tr>
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<tr class="memdesc:"><td class="mdescLeft"> </td><td class="mdescRight">uid生成器 <a href="classdl_1_1_uid_generator.html#details">更多...</a><br /></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="namespaces" name="namespaces"></a>
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命名空间</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html">dl</a></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
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类型定义</h2></td></tr>
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<tr class="memitem:a40799e3af2c38a10d2f50db29ab569f2" id="r_a40799e3af2c38a10d2f50db29ab569f2"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a40799e3af2c38a10d2f50db29ab569f2">dl::Uid</a> = uint64_t</td></tr>
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<tr class="separator:a40799e3af2c38a10d2f50db29ab569f2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a10fdd4b0026892669612255584c39088" id="r_a10fdd4b0026892669612255584c39088"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a10fdd4b0026892669612255584c39088">dl::Guid</a> = std::array<uint64_t, 2></td></tr>
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<tr class="separator:a10fdd4b0026892669612255584c39088"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="var-members" name="var-members"></a>
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变量</h2></td></tr>
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<tr class="memitem:a4b0e4caeb098c730a286fcc9b2476200" id="r_a4b0e4caeb098c730a286fcc9b2476200"><td class="memItemLeft" align="right" valign="top">constexpr uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a4b0e4caeb098c730a286fcc9b2476200">dl::UID_STEP</a> = 16</td></tr>
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<tr class="memdesc:a4b0e4caeb098c730a286fcc9b2476200"><td class="mdescLeft"> </td><td class="mdescRight">单步生成时间（毫秒） <br /></td></tr>
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<tr class="separator:a4b0e4caeb098c730a286fcc9b2476200"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a56367196bc122d5420d441f181f143ab" id="r_a56367196bc122d5420d441f181f143ab"><td class="memItemLeft" align="right" valign="top">constexpr uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a56367196bc122d5420d441f181f143ab">dl::UID_YEAR_SECOND_X</a> = 366ull * 24ull * 60ull * 60ull * <a class="el" href="namespacedl.html#a4b0e4caeb098c730a286fcc9b2476200">UID_STEP</a></td></tr>
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<tr class="memdesc:a56367196bc122d5420d441f181f143ab"><td class="mdescLeft"> </td><td class="mdescRight">一年生成的数量 <br /></td></tr>
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<tr class="separator:a56367196bc122d5420d441f181f143ab"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a23909254ca75ee5c5a7c8a039215f0bd" id="r_a23909254ca75ee5c5a7c8a039215f0bd"><td class="memItemLeft" align="right" valign="top">constexpr uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a23909254ca75ee5c5a7c8a039215f0bd">dl::UID_YEAR</a> = 100</td></tr>
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<tr class="memdesc:a23909254ca75ee5c5a7c8a039215f0bd"><td class="mdescLeft"> </td><td class="mdescRight">需要支持多少年 <br /></td></tr>
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<tr class="separator:a23909254ca75ee5c5a7c8a039215f0bd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad289ea65298c92cf32adf3bc37ccd169" id="r_ad289ea65298c92cf32adf3bc37ccd169"><td class="memItemLeft" align="right" valign="top">constexpr uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#ad289ea65298c92cf32adf3bc37ccd169">dl::UID_BIT_USER</a> = 8</td></tr>
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<tr class="memdesc:ad289ea65298c92cf32adf3bc37ccd169"><td class="mdescLeft"> </td><td class="mdescRight">自定义数据位数 <br /></td></tr>
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<tr class="separator:ad289ea65298c92cf32adf3bc37ccd169"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8aeb1481941345c8901b43673ccd5975" id="r_a8aeb1481941345c8901b43673ccd5975"><td class="memItemLeft" align="right" valign="top">constexpr uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a8aeb1481941345c8901b43673ccd5975">dl::UID_BIT_TIME</a> = 40</td></tr>
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<tr class="memdesc:a8aeb1481941345c8901b43673ccd5975"><td class="mdescLeft"> </td><td class="mdescRight">时间戳占据位数 <br /></td></tr>
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<tr class="separator:a8aeb1481941345c8901b43673ccd5975"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7be6346888e8a21e69cba07644603913" id="r_a7be6346888e8a21e69cba07644603913"><td class="memItemLeft" align="right" valign="top">constexpr uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a7be6346888e8a21e69cba07644603913">dl::UID_STEP_COUNT</a> = <a class="el" href="namespacedl_1_1_math.html#a105a64a6e1c5f63f3510ddc57c676365">Math::Pow64</a>(2, 64 - <a class="el" href="namespacedl.html#a8aeb1481941345c8901b43673ccd5975">UID_BIT_TIME</a> - <a class="el" href="namespacedl.html#ad289ea65298c92cf32adf3bc37ccd169">UID_BIT_USER</a>)</td></tr>
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<tr class="memdesc:a7be6346888e8a21e69cba07644603913"><td class="mdescLeft"> </td><td class="mdescRight">单步最大数量 <br /></td></tr>
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<tr class="separator:a7be6346888e8a21e69cba07644603913"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a007d0c8e4e16d0af4aab7ca613ffc90f" id="r_a007d0c8e4e16d0af4aab7ca613ffc90f"><td class="memItemLeft" align="right" valign="top">constexpr uint64_t </td><td class="memItemRight" valign="bottom"><a class="el" href="namespacedl.html#a007d0c8e4e16d0af4aab7ca613ffc90f">dl::UID_POW_2_X</a> = <a class="el" href="namespacedl_1_1_math.html#a105a64a6e1c5f63f3510ddc57c676365">Math::Pow64</a>(2, <a class="el" href="namespacedl.html#a8aeb1481941345c8901b43673ccd5975">UID_BIT_TIME</a>)</td></tr>
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<tr class="memdesc:a007d0c8e4e16d0af4aab7ca613ffc90f"><td class="mdescLeft"> </td><td class="mdescRight">时间戳占据位数能表示的上限 <br /></td></tr>
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<tr class="separator:a007d0c8e4e16d0af4aab7ca613ffc90f"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">详细描述</h2>
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<div class="textblock"><p>唯一标识符 </p>
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<dl class="section version"><dt>版本</dt><dd>1.0 </dd></dl>
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<dl class="section author"><dt>作者</dt><dd>lveyou </dd></dl>
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<dl class="section date"><dt>日期</dt><dd>26-01-19</dd></dl>
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<dl class="section note"><dt>注解</dt><dd>uid： 64位，按时间戳生成，单位时间内数量有限制 guid： 128位，理论有碰撞。CrossGuid xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx </dd></dl>
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<p class="definition">在文件 <a class="el" href="dl__guid_8h_source.html">dl_guid.h</a> 中定义.</p>
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制作者 <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.13.1
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