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Posted to commits@mesos.apache.org by gi...@apache.org on 2018/05/18 07:56:55 UTC

[3/4] mesos-site git commit: Updated the website built from mesos SHA: 89db66e.

http://git-wip-us.apache.org/repos/asf/mesos-site/blob/f81da9d5/content/api/latest/c++/lib__logrotate_8hpp_source.html
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diff --git a/content/api/latest/c++/lib__logrotate_8hpp_source.html b/content/api/latest/c++/lib__logrotate_8hpp_source.html
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+++ b/content/api/latest/c++/lib__logrotate_8hpp_source.html
@@ -52,7 +52,7 @@
 <div class="title">lib_logrotate.hpp</div>  </div>
 </div><!--header-->
 <div class="contents">
-<a href="lib__logrotate_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// or more contributor license agreements.  See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// regarding copyright ownership.  The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><s
 pan class="lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// with the License.  You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//     http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// di
 stributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef __SLAVE_CONTAINER_LOGGER_LIB_LOGROTATE_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define __SLAVE_CONTAINER_LOGGER_LI
 B_LOGROTATE_HPP__</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="slave_2container__logger_8hpp.html">mesos/slave/container_logger.hpp</a>&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="include_2mesos_2slave_2containerizer_8hpp.html">mesos/slave/containerizer.hpp</a>&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#
 include &lt;<a class="code" href="bytes_8hpp.html">stout/bytes.hpp</a>&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="3rdparty_2stout_2include_2stout_2flags_8hpp.html">stout/flags.hpp</a>&gt;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="option_8hpp.html">stout/option.hpp</a>&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="3rdparty_2stout_2include_2stout_2os_2constants_8hpp.html">stout/os/constants.hpp</a>&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="exists_8hpp.html">stout/
 os/exists.hpp</a>&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="pagesize_8hpp.html">stout/os/pagesize.hpp</a>&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="shell_8hpp.html">stout/os/shell.hpp</a>&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="logrotate_8hpp.html">slave/container_loggers/logrotate.hpp</a>&quot;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemesos.html">mesos</a> {</d
 iv><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="namespacemesos_1_1internal_1_1logger.html">   38</a></span>&#160;<span class="keyword">namespace </span>logger {</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">// Forward declaration.</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">class </span>LogrotateContainerLoggerProcess;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>
 &#160;<span class="comment">// These flags are loaded twice: once when the `ContainerLogger` module</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">// is created and each time before launching containers. The flags loaded</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">// at module creation act as global default values, whereas flags loaded</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">// prior to containers can override the global values.</span></div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">   48</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">LoggerFlags</a> : <span class="keyword">public</span> <span class="keyword"
 >virtual</span> <a class="code" href="classflags_1_1FlagsBase.html">flags::FlagsBase</a></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;{</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a1652e5364feb93134ce12474b77e4bbc">   50</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a1652e5364feb93134ce12474b77e4bbc">LoggerFlags</a>()</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">LoggerFlags::max_stdout_size</a>,</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span
 >&#160;        <span class="stringliteral">&quot;max_stdout_size&quot;</span>,</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        <span class="stringliteral">&quot;Maximum size, in bytes, of a single stdout log file.\n&quot;</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        <span class="stringliteral">&quot;Defaults to 10 MB.  Must be at least 1 (memory) page.&quot;</span>,</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <a class="code" href="bytes_8hpp.html#a5d8fe3ccbf9cafff06846c05b3ca864b">Megabytes</a>(10),</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        &amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">LoggerFlags::validateSize</a>);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div><div class="line"><a 
 name="l00059"></a><span class="lineno">   59</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">LoggerFlags::logrotate_stdout_options</a>,</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <span class="stringliteral">&quot;logrotate_stdout_options&quot;</span>,</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="stringliteral">&quot;Additional config options to pass into &#39;logrotate&#39; for stdout.\n&quot;</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        <span class="stringliteral">&quot;This string will be inserted into a &#39;logrotate&#39; configuration file.\n&quot;</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        <
 span class="stringliteral">&quot;i.e.\n&quot;</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="stringliteral">&quot;  /path/to/stdout {\n&quot;</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        <span class="stringliteral">&quot;    &lt;logrotate_stdout_options&gt;\n&quot;</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        <span class="stringliteral">&quot;    size &lt;max_stdout_size&gt;\n&quot;</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="stringliteral">&quot;  }\n&quot;</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="stringliteral">&quot;NOTE: The &#39;size&#39; option will be overridden by this module.&quot;</span>);</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;
 </div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">LoggerFlags::max_stderr_size</a>,</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <span class="stringliteral">&quot;max_stderr_size&quot;</span>,</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        <span class="stringliteral">&quot;Maximum size, in bytes, of a single stderr log file.\n&quot;</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        <span class="stringliteral">&quot;Defaults to 10 MB.  Must be at least 1 (memory) page.&quot;</span>,</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <a class="code" href="bytes_8hpp.
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 iteral">&quot;Additional config options to pass into &#39;logrotate&#39; for stderr.\n&quot;</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span class="stringliteral">&quot;This string will be inserted into a &#39;logrotate&#39; configuration file.\n&quot;</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="stringliteral">&quot;i.e.\n&quot;</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        <span class="stringliteral">&quot;  /path/to/stderr {\n&quot;</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        <span class="stringliteral">&quot;    &lt;logrotate_stderr_options&gt;\n&quot;</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="stringliteral">&quot;    size &lt;max_stderr_size&gt;\n&quot;</span></div><div class="line"><a 
 name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="stringliteral">&quot;  }\n&quot;</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="stringliteral">&quot;NOTE: The &#39;size&#39; option will be overridden by this module.&quot;</span>);</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  }</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">   89</a></span>&#160;  <span class="keyword">static</span> <a class="code" href="classOption.html">Option&lt;Error&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">validateSize</a>(<span class="keyword">const</span> <a class="code" href="classBytes.html"
 >Bytes</a>&amp; value)</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  {</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordflow">if</span> (value.<a class="code" href="classBytes.html#a1a2e9277ebe7d227a21f111898c49a8c">bytes</a>() &lt; <a class="code" href="namespaceos.html#af0898f40a19c3804347e30b9efa0984a">os::pagesize</a>()) {</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;          <span class="stringliteral">&quot;Expected --max_stdout_size and --max_stderr_size of &quot;</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;          <span class="stringliteral">&quot;at least &quot;</span> + <a class="code" href="namespacens.html#a28116b4
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 _1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">max_stdout_size</a>;</div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">  101</a></span>&#160;  <a class="code" href="classOption.html">Option&lt;std::string&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">logrotate_stdout_options</a>;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">  103</a></span>&#160;  <a class="code" href="classBytes.html">Bytes</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">max_stderr_size</a>;</div><div class="line"
 ><a name="l00104"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">  104</a></span>&#160;  <a class="code" href="classOption.html">Option&lt;std::string&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">logrotate_stderr_options</a>;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;};</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html">  108</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a> : <span class="keyword">public</span> <span class="keyword">virtual</span> <a c
 lass="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">LoggerFlags</a></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;{</div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#afe7186ad5e403a2afd95cf7021f4d195">  110</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#afe7186ad5e403a2afd95cf7021f4d195">Flags</a>()</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  {</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">Flags::environment_variable_prefix</a>,</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        <sp
 an class="stringliteral">&quot;environment_variable_prefix&quot;</span>,</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        <span class="stringliteral">&quot;Prefix for environment variables meant to modify the behavior of\n&quot;</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        <span class="stringliteral">&quot;the logrotate logger for the specific container being launched.\n&quot;</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="stringliteral">&quot;The logger will look for four prefixed environment variables in the\n&quot;</span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="stringliteral">&quot;container&#39;s &#39;CommandInfo&#39;s &#39;Environment&#39;:\n&quot;</span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="s
 tringliteral">&quot;  * MAX_STDOUT_SIZE\n&quot;</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="stringliteral">&quot;  * LOGROTATE_STDOUT_OPTIONS\n&quot;</span></div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <span class="stringliteral">&quot;  * MAX_STDERR_SIZE\n&quot;</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="stringliteral">&quot;  * LOGROTATE_STDERR_OPTIONS\n&quot;</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        <span class="stringliteral">&quot;If present, these variables will overwrite the global values set\n&quot;</span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        <span class="stringliteral">&quot;via module parameters.&quot;</span>,</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>
 &#160;        <span class="stringliteral">&quot;CONTAINER_LOGGER_&quot;</span>);</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">Flags::launcher_dir</a>,</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <span class="stringliteral">&quot;launcher_dir&quot;</span>,</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        <span class="stringliteral">&quot;Directory path of Mesos binaries.  The logrotate container logger\n&quot;</span></div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        <span class="stringliteral">&quot;will find the &#39;&quot;</span> 
 + <a class="code" href="namespacemesos_1_1internal_1_1logger_1_1rotate.html#aee5dc359a1b6d22c5d912b166c895854">mesos::internal::logger::rotate::NAME</a> + <span class="stringliteral">&quot;&#39;\n&quot;</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="stringliteral">&quot;binary file under this directory.&quot;</span>,</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        PKGLIBEXECDIR,</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        [](<span class="keyword">const</span> std::string&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;          std::string executablePath =</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;            <a class="code" href="namespacepath.html#aa86b16a2171cec90bb333793
 0513ef0f">path::join</a>(value, <a class="code" href="namespacemesos_1_1internal_1_1logger_1_1rotate.html#aee5dc359a1b6d22c5d912b166c895854">mesos::internal::logger::rotate::NAME</a>);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;          <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(executablePath)) {</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">&quot;Cannot find: &quot;</span> + executablePath);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;          }</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><s
 pan class="lineno">  140</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        });</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">Flags::logrotate_path</a>,</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        <span class="stringliteral">&quot;logrotate_path&quot;</span>,</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        <span class="stringliteral">&quot;If specified, the logrotate container logger will use the specified\n&quot;</span><
 /div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        <span class="stringliteral">&quot;&#39;logrotate&#39; instead of the system&#39;s &#39;logrotate&#39;.&quot;</span>,</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        <span class="stringliteral">&quot;logrotate&quot;</span>,</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        [](<span class="keyword">const</span> std::string&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;          <span class="comment">// Check if `logrotate` exists via the help command.</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;          <span class="comment">// TODO(josephw): Consider a more comprehensive check.</span></div><div class="line"><a name="l00151"></a><span class="lineno
 ">  151</span>&#160;          <a class="code" href="classTry.html">Try&lt;std::string&gt;</a> helpCommand =</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;            <a class="code" href="namespaceos.html#a0d86320d7799ea761599bc356c02a4fa">os::shell</a>(value + <span class="stringliteral">&quot; --help &gt; &quot;</span> + <a class="code" href="namespaceos.html#a8d90278daa51c4fe9fcb9e54757187b5">os::DEV_NULL</a>);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;          <span class="keywordflow">if</span> (helpCommand.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00156"></a
 ><span class="lineno">  156</span>&#160;                <span class="stringliteral">&quot;Failed to check logrotate: &quot;</span> + helpCommand.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;          }</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        });</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1in
 ternal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">Flags::libprocess_num_worker_threads</a>,</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        <span class="stringliteral">&quot;libprocess_num_worker_threads&quot;</span>,</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;        <span class="stringliteral">&quot;Number of Libprocess worker threads.\n&quot;</span></div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        <span class="stringliteral">&quot;Defaults to 8.  Must be at least 1.&quot;</span>,</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;        8u,</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;        [](<span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="lin
 e"><a name="l00168"></a><span class="lineno">  168</span>&#160;          <span class="keywordflow">if</span> (value &lt; 1u) {</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                <span class="stringliteral">&quot;Expected --libprocess_num_worker_threads of at least 1&quot;</span>);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;          }</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;        });</div><div class="line"><
 a name="l00175"></a><span class="lineno">  175</span>&#160;  }</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div><div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">  177</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">environment_variable_prefix</a>;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">  179</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">launcher_dir</a>;</div><div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="struct
 mesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">  180</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">logrotate_path</a>;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">  182</a></span>&#160;  <span class="keywordtype">size_t</span> <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">libprocess_num_worker_threads</a>;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;};</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;</div><div class="line"><a name="l00186"></a><sp
 an class="lineno">  186</span>&#160;<span class="comment">// The `LogrotateContainerLogger` is a container logger that utilizes the</span></div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="comment">// `logrotate` utility to strictly constrain total size of a container&#39;s</span></div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="comment">// stdout and stderr log files.  All `logrotate` configuration options</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">// (besides `size`, which this module uses) are supported.  See `Flags` above.</span></div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html">  190</a></span>&#160;<span class="keyword">class </span><a class="code" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.h
 tml">LogrotateContainerLogger</a> : <span class="keyword">public</span> <a class="code" href="classmesos_1_1slave_1_1ContainerLogger.html">mesos::slave::ContainerLogger</a></div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;{</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;  <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a61dcd7752a1b2bfc737b0f9b357191a6a29cdd8cd657c6eceab1bd280cdb1ba0f">LogrotateContainerLogger</a>(<span class="keyword">const</span> <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a>&amp; _flags);</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classmesos_1_1i
 nternal_1_1logger_1_1LogrotateContainerLogger.html">LogrotateContainerLogger</a>();</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;  <span class="comment">// This is a noop. The logrotate container logger has nothing to initialize.</span></div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try&lt;Nothing&gt;</a> <a class="code" href="namespacesystemd.html#a4e45b8163baf6d307c9884d624472402">initialize</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classprocess_1_1Future.html">process::Future&lt;mesos::slave::ContainerIO&gt;</a> <a class="c
 ode" href="namespacecgroups.html#a4bf20862574beb5b0f9af7799489866f">prepare</a>(</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;      <span class="keyword">const</span> mesos::slave::ContainerConfig&amp; containerConfig) <span class="keyword">override</span>;</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00204"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">  204</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a> <a class="code" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">flags</a>;</div><div class="line"><a name="l00205"></a><span class="lineno"><a
  class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">  205</a></span>&#160;  <a class="code" href="classprocess_1_1Owned.html">process::Owned&lt;LogrotateContainerLoggerProcess&gt;</a> <a class="code" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">process</a>;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;};</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;} <span class="comment">// namespace logger {</span></div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;} <span class="comment">// namespace internal {</span></div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;} <span class="comment">// namespace mesos {</span></div><div class="line"><a nam
 e="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="preprocessor">#endif // __SLAVE_CONTAINER_LOGGER_LIB_LOGROTATE_HPP__</span></div><div class="ttc" id="namespaceos_html_a69b3969276ffa4cb698b9431ee43bd7c"><div class="ttname"><a href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a></div><div class="ttdeci">bool exists(const std::string &amp;path)</div><div class="ttdef"><b>Definition:</b> exists.hpp:26</div></div>
+<a href="lib__logrotate_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// or more contributor license agreements.  See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// regarding copyright ownership.  The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><s
 pan class="lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// with the License.  You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//     http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// di
 stributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef __SLAVE_CONTAINER_LOGGER_LIB_LOGROTATE_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define __SLAVE_CONTAINER_LOGGER_LI
 B_LOGROTATE_HPP__</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="slave_2container__logger_8hpp.html">mesos/slave/container_logger.hpp</a>&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="include_2mesos_2slave_2containerizer_8hpp.html">mesos/slave/containerizer.hpp</a>&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#
 include &lt;<a class="code" href="bytes_8hpp.html">stout/bytes.hpp</a>&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="3rdparty_2stout_2include_2stout_2flags_8hpp.html">stout/flags.hpp</a>&gt;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="option_8hpp.html">stout/option.hpp</a>&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="3rdparty_2stout_2include_2stout_2os_2constants_8hpp.html">stout/os/constants.hpp</a>&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="exists_8hpp.html">stout/
 os/exists.hpp</a>&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="pagesize_8hpp.html">stout/os/pagesize.hpp</a>&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="shell_8hpp.html">stout/os/shell.hpp</a>&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="logrotate_8hpp.html">slave/container_loggers/logrotate.hpp</a>&quot;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemesos.html">mesos</a> {</d
 iv><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="namespacemesos_1_1internal_1_1logger.html">   38</a></span>&#160;<span class="keyword">namespace </span>logger {</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">// Forward declaration.</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">class </span>LogrotateContainerLoggerProcess;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>
 &#160;<span class="comment">// These flags are loaded twice: once when the `ContainerLogger` module</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">// is created and each time before launching containers. The flags loaded</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">// at module creation act as global default values, whereas flags loaded</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">// prior to containers can override the global values.</span></div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">   48</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">LoggerFlags</a> : <span class="keyword">public</span> <span class="keyword"
 >virtual</span> <a class="code" href="classflags_1_1FlagsBase.html">flags::FlagsBase</a></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;{</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a1652e5364feb93134ce12474b77e4bbc">   50</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a1652e5364feb93134ce12474b77e4bbc">LoggerFlags</a>()</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">LoggerFlags::max_stdout_size</a>,</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span
 >&#160;        <span class="stringliteral">&quot;max_stdout_size&quot;</span>,</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        <span class="stringliteral">&quot;Maximum size, in bytes, of a single stdout log file.\n&quot;</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        <span class="stringliteral">&quot;Defaults to 10 MB.  Must be at least 1 (memory) page.&quot;</span>,</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <a class="code" href="bytes_8hpp.html#a5d8fe3ccbf9cafff06846c05b3ca864b">Megabytes</a>(10),</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        &amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">LoggerFlags::validateSize</a>);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div><div class="line"><a 
 name="l00059"></a><span class="lineno">   59</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">LoggerFlags::logrotate_stdout_options</a>,</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        <span class="stringliteral">&quot;logrotate_stdout_options&quot;</span>,</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="stringliteral">&quot;Additional config options to pass into &#39;logrotate&#39; for stdout.\n&quot;</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        <span class="stringliteral">&quot;This string will be inserted into a &#39;logrotate&#39; configuration file.\n&quot;</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        <
 span class="stringliteral">&quot;i.e.\n&quot;</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="stringliteral">&quot;  /path/to/stdout {\n&quot;</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        <span class="stringliteral">&quot;    &lt;logrotate_stdout_options&gt;\n&quot;</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        <span class="stringliteral">&quot;    size &lt;max_stdout_size&gt;\n&quot;</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="stringliteral">&quot;  }\n&quot;</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="stringliteral">&quot;NOTE: The &#39;size&#39; option will be overridden by this module.&quot;</span>);</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;
 </div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">LoggerFlags::max_stderr_size</a>,</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <span class="stringliteral">&quot;max_stderr_size&quot;</span>,</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        <span class="stringliteral">&quot;Maximum size, in bytes, of a single stderr log file.\n&quot;</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        <span class="stringliteral">&quot;Defaults to 10 MB.  Must be at least 1 (memory) page.&quot;</span>,</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <a class="code" href="bytes_8hpp.
 html#a5d8fe3ccbf9cafff06846c05b3ca864b">Megabytes</a>(10),</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        &amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">LoggerFlags::validateSize</a>);</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">LoggerFlags::logrotate_stderr_options</a>,</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        <span class="stringliteral">&quot;logrotate_stderr_options&quot;</span>,</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        <span class="stringl
 iteral">&quot;Additional config options to pass into &#39;logrotate&#39; for stderr.\n&quot;</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span class="stringliteral">&quot;This string will be inserted into a &#39;logrotate&#39; configuration file.\n&quot;</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="stringliteral">&quot;i.e.\n&quot;</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        <span class="stringliteral">&quot;  /path/to/stderr {\n&quot;</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        <span class="stringliteral">&quot;    &lt;logrotate_stderr_options&gt;\n&quot;</span></div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="stringliteral">&quot;    size &lt;max_stderr_size&gt;\n&quot;</span></div><div class="line"><a 
 name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="stringliteral">&quot;  }\n&quot;</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="stringliteral">&quot;NOTE: The &#39;size&#39; option will be overridden by this module.&quot;</span>);</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  }</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">   89</a></span>&#160;  <span class="keyword">static</span> <a class="code" href="classOption.html">Option&lt;Error&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">validateSize</a>(<span class="keyword">const</span> <a class="code" href="classBytes.html"
 >Bytes</a>&amp; value)</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  {</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordflow">if</span> (value.<a class="code" href="classBytes.html#a1a2e9277ebe7d227a21f111898c49a8c">bytes</a>() &lt; <a class="code" href="namespaceos.html#af0898f40a19c3804347e30b9efa0984a">os::pagesize</a>()) {</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;          <span class="stringliteral">&quot;Expected --max_stdout_size and --max_stderr_size of &quot;</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;          <span class="stringliteral">&quot;at least &quot;</span> + <a class="code" href="namespacens.html#a28116b4
 6e6543597a11733424cd1aa20">stringify</a>(<a class="code" href="namespaceos.html#af0898f40a19c3804347e30b9efa0984a">os::pagesize</a>()) + <span class="stringliteral">&quot; bytes&quot;</span>);</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    }</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  }</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">  100</a></span>&#160;  <a class="code" href="classBytes.html">Bytes</a> <a class="code" href="structmesos
 _1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">max_stdout_size</a>;</div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">  101</a></span>&#160;  <a class="code" href="classOption.html">Option&lt;std::string&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">logrotate_stdout_options</a>;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">  103</a></span>&#160;  <a class="code" href="classBytes.html">Bytes</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a324f6d7bd9a854fb74465d84cbfffd46">max_stderr_size</a>;</div><div class="line"
 ><a name="l00104"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">  104</a></span>&#160;  <a class="code" href="classOption.html">Option&lt;std::string&gt;</a> <a class="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">logrotate_stderr_options</a>;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;};</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html">  108</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a> : <span class="keyword">public</span> <span class="keyword">virtual</span> <a c
 lass="code" href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html">LoggerFlags</a></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;{</div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#afe7186ad5e403a2afd95cf7021f4d195">  110</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#afe7186ad5e403a2afd95cf7021f4d195">Flags</a>()</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  {</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">Flags::environment_variable_prefix</a>,</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        <sp
 an class="stringliteral">&quot;environment_variable_prefix&quot;</span>,</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        <span class="stringliteral">&quot;Prefix for environment variables meant to modify the behavior of\n&quot;</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        <span class="stringliteral">&quot;the logrotate logger for the specific container being launched.\n&quot;</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="stringliteral">&quot;The logger will look for four prefixed environment variables in the\n&quot;</span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="stringliteral">&quot;container&#39;s &#39;CommandInfo&#39;s &#39;Environment&#39;:\n&quot;</span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="s
 tringliteral">&quot;  * MAX_STDOUT_SIZE\n&quot;</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="stringliteral">&quot;  * LOGROTATE_STDOUT_OPTIONS\n&quot;</span></div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <span class="stringliteral">&quot;  * MAX_STDERR_SIZE\n&quot;</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="stringliteral">&quot;  * LOGROTATE_STDERR_OPTIONS\n&quot;</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        <span class="stringliteral">&quot;If present, these variables will overwrite the global values set\n&quot;</span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        <span class="stringliteral">&quot;via module parameters.&quot;</span>,</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>
 &#160;        <span class="stringliteral">&quot;CONTAINER_LOGGER_&quot;</span>);</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">Flags::launcher_dir</a>,</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <span class="stringliteral">&quot;launcher_dir&quot;</span>,</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        <span class="stringliteral">&quot;Directory path of Mesos binaries.  The logrotate container logger\n&quot;</span></div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        <span class="stringliteral">&quot;will find the &#39;&quot;</span> 
 + <a class="code" href="namespacemesos_1_1internal_1_1logger_1_1rotate.html#aee5dc359a1b6d22c5d912b166c895854">mesos::internal::logger::rotate::NAME</a> + <span class="stringliteral">&quot;&#39;\n&quot;</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="stringliteral">&quot;binary file under this directory.&quot;</span>,</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        PKGLIBEXECDIR,</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        [](<span class="keyword">const</span> std::string&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;          std::string executablePath =</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;            <a class="code" href="namespacepath.html#aa86b16a2171cec90bb333793
 0513ef0f">path::join</a>(value, <a class="code" href="namespacemesos_1_1internal_1_1logger_1_1rotate.html#aee5dc359a1b6d22c5d912b166c895854">mesos::internal::logger::rotate::NAME</a>);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;          <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(executablePath)) {</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">&quot;Cannot find: &quot;</span> + executablePath);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;          }</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><s
 pan class="lineno">  140</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        });</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">Flags::logrotate_path</a>,</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        <span class="stringliteral">&quot;logrotate_path&quot;</span>,</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        <span class="stringliteral">&quot;If specified, the logrotate container logger will use the specified\n&quot;</span><
 /div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        <span class="stringliteral">&quot;&#39;logrotate&#39; instead of the system&#39;s &#39;logrotate&#39;.&quot;</span>,</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        <span class="stringliteral">&quot;logrotate&quot;</span>,</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        [](<span class="keyword">const</span> std::string&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;          <span class="comment">// Check if `logrotate` exists via the help command.</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;          <span class="comment">// TODO(josephw): Consider a more comprehensive check.</span></div><div class="line"><a name="l00151"></a><span class="lineno
 ">  151</span>&#160;          <a class="code" href="classTry.html">Try&lt;std::string&gt;</a> helpCommand =</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;            <a class="code" href="namespaceos.html#a0d86320d7799ea761599bc356c02a4fa">os::shell</a>(value + <span class="stringliteral">&quot; --help &gt; &quot;</span> + <a class="code" href="namespaceos.html#a8d90278daa51c4fe9fcb9e54757187b5">os::DEV_NULL</a>);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;          <span class="keywordflow">if</span> (helpCommand.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00156"></a
 ><span class="lineno">  156</span>&#160;                <span class="stringliteral">&quot;Failed to check logrotate: &quot;</span> + helpCommand.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;          }</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        });</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&amp;<a class="code" href="structmesos_1_1in
 ternal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">Flags::libprocess_num_worker_threads</a>,</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        <span class="stringliteral">&quot;libprocess_num_worker_threads&quot;</span>,</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;        <span class="stringliteral">&quot;Number of Libprocess worker threads.\n&quot;</span></div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        <span class="stringliteral">&quot;Defaults to 8.  Must be at least 1.&quot;</span>,</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;        8u,</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;        [](<span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; value) -&gt; <a class="code" href="classOption.html">Option&lt;Error&gt;</a> {</div><div class="lin
 e"><a name="l00168"></a><span class="lineno">  168</span>&#160;          <span class="keywordflow">if</span> (value &lt; 1u) {</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                <span class="stringliteral">&quot;Expected --libprocess_num_worker_threads of at least 1&quot;</span>);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;          }</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;          <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;        });</div><div class="line"><
 a name="l00175"></a><span class="lineno">  175</span>&#160;  }</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div><div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">  177</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a4a5d15a242a55783cf676b2fa799e360">environment_variable_prefix</a>;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">  179</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a68a07a76e5b8842c754852a424d12525">launcher_dir</a>;</div><div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="struct
 mesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">  180</a></span>&#160;  std::string <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#abd0de016d5754244dccafb3d0311bf1c">logrotate_path</a>;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">  182</a></span>&#160;  <span class="keywordtype">size_t</span> <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">libprocess_num_worker_threads</a>;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;};</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;</div><div class="line"><a name="l00186"></a><sp
 an class="lineno">  186</span>&#160;<span class="comment">// The `LogrotateContainerLogger` is a container logger that utilizes the</span></div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="comment">// `logrotate` utility to strictly constrain total size of a container&#39;s</span></div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="comment">// stdout and stderr log files.  All `logrotate` configuration options</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">// (besides `size`, which this module uses) are supported.  See `Flags` above.</span></div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html">  190</a></span>&#160;<span class="keyword">class </span><a class="code" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.h
 tml">LogrotateContainerLogger</a> : <span class="keyword">public</span> <a class="code" href="classmesos_1_1slave_1_1ContainerLogger.html">mesos::slave::ContainerLogger</a></div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;{</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;  <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a61dcd7752a1b2bfc737b0f9b357191a6a29cdd8cd657c6eceab1bd280cdb1ba0f">LogrotateContainerLogger</a>(<span class="keyword">const</span> <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a>&amp; _flags);</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classmesos_1_1i
 nternal_1_1logger_1_1LogrotateContainerLogger.html">LogrotateContainerLogger</a>();</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;  <span class="comment">// This is a noop. The logrotate container logger has nothing to initialize.</span></div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try&lt;Nothing&gt;</a> <a class="code" href="namespacesystemd.html#a4e45b8163baf6d307c9884d624472402">initialize</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classprocess_1_1Future.html">process::Future&lt;mesos::slave::ContainerIO&gt;</a> <a class="c
 ode" href="namespacecgroups.html#a4bf20862574beb5b0f9af7799489866f">prepare</a>(</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;      <span class="keyword">const</span> ContainerID&amp; containerId,</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;      <span class="keyword">const</span> mesos::slave::ContainerConfig&amp; containerConfig) <span class="keyword">override</span>;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00205"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">  205</a></span>&#160;  <a class="code" href="structmesos_1_1internal_1_1logger_1_1Flags.html">Flags</a> <a class="code" href="classmesos_1_1internal_1_
 1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">flags</a>;</div><div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">  206</a></span>&#160;  <a class="code" href="classprocess_1_1Owned.html">process::Owned&lt;LogrotateContainerLoggerProcess&gt;</a> <a class="code" href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">process</a>;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;};</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;} <span class="comment">// namespace logger {</span></div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;} <span class="comment">// namespace internal {</span></div><div 
 class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;} <span class="comment">// namespace mesos {</span></div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;<span class="preprocessor">#endif // __SLAVE_CONTAINER_LOGGER_LIB_LOGROTATE_HPP__</span></div><div class="ttc" id="namespaceos_html_a69b3969276ffa4cb698b9431ee43bd7c"><div class="ttname"><a href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a></div><div class="ttdeci">bool exists(const std::string &amp;path)</div><div class="ttdef"><b>Definition:</b> exists.hpp:26</div></div>
 <div class="ttc" id="classError_html"><div class="ttname"><a href="classError.html">Error</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:35</div></div>
 <div class="ttc" id="classOption_html"><div class="ttname"><a href="classOption.html">Option&lt; Error &gt;</a></div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1LoggerFlags_html_a6f16e6c1a4ea3d53a938706f9d215fdf"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a6f16e6c1a4ea3d53a938706f9d215fdf">mesos::internal::logger::LoggerFlags::validateSize</a></div><div class="ttdeci">static Option&lt; Error &gt; validateSize(const Bytes &amp;value)</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:89</div></div>
@@ -66,7 +66,7 @@
 <div class="ttc" id="namespacepath_html_aa86b16a2171cec90bb3337930513ef0f"><div class="ttname"><a href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a></div><div class="ttdeci">std::string join(const std::string &amp;path1, const std::string &amp;path2, const char _separator=os::PATH_SEPARATOR)</div><div class="ttdef"><b>Definition:</b> path.hpp:56</div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1Flags_html_a70d12161362a3aa5da5a5ea0f55a7142"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1Flags.html#a70d12161362a3aa5da5a5ea0f55a7142">mesos::internal::logger::Flags::libprocess_num_worker_threads</a></div><div class="ttdeci">size_t libprocess_num_worker_threads</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:182</div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1LoggerFlags_html_a07b215b9a9fb3a2fae1671574314e2d2"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a07b215b9a9fb3a2fae1671574314e2d2">mesos::internal::logger::LoggerFlags::logrotate_stderr_options</a></div><div class="ttdeci">Option&lt; std::string &gt; logrotate_stderr_options</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:104</div></div>
-<div class="ttc" id="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger_html_abb34cdfbdc44341018b34fcd96db68fd"><div class="ttname"><a href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">mesos::internal::logger::LogrotateContainerLogger::process</a></div><div class="ttdeci">process::Owned&lt; LogrotateContainerLoggerProcess &gt; process</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:205</div></div>
+<div class="ttc" id="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger_html_abb34cdfbdc44341018b34fcd96db68fd"><div class="ttname"><a href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#abb34cdfbdc44341018b34fcd96db68fd">mesos::internal::logger::LogrotateContainerLogger::process</a></div><div class="ttdeci">process::Owned&lt; LogrotateContainerLoggerProcess &gt; process</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:206</div></div>
 <div class="ttc" id="bytes_8hpp_html"><div class="ttname"><a href="bytes_8hpp.html">bytes.hpp</a></div></div>
 <div class="ttc" id="namespacesystemd_html_a4e45b8163baf6d307c9884d624472402"><div class="ttname"><a href="namespacesystemd.html#a4e45b8163baf6d307c9884d624472402">systemd::initialize</a></div><div class="ttdeci">Try&lt; Nothing &gt; initialize(const Flags &amp;flags)</div><div class="ttdoc">Initialized state for support of systemd functions in this file. </div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1LoggerFlags_html_a01e0b855bccba47e5e8cf51923c043dd"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a01e0b855bccba47e5e8cf51923c043dd">mesos::internal::logger::LoggerFlags::max_stdout_size</a></div><div class="ttdeci">Bytes max_stdout_size</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:100</div></div>
@@ -84,7 +84,7 @@
 <div class="ttc" id="classTry_html_a0b98f95163b8a38daafd1651b043a276"><div class="ttname"><a href="classTry.html#a0b98f95163b8a38daafd1651b043a276">Try::isError</a></div><div class="ttdeci">bool isError() const </div><div class="ttdef"><b>Definition:</b> try.hpp:71</div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1LoggerFlags_html_a1652e5364feb93134ce12474b77e4bbc"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a1652e5364feb93134ce12474b77e4bbc">mesos::internal::logger::LoggerFlags::LoggerFlags</a></div><div class="ttdeci">LoggerFlags()</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:50</div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1Flags_html_afe7186ad5e403a2afd95cf7021f4d195"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1Flags.html#afe7186ad5e403a2afd95cf7021f4d195">mesos::internal::logger::Flags::Flags</a></div><div class="ttdeci">Flags()</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:110</div></div>
-<div class="ttc" id="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger_html_a9efe3b3bece6d7d2c43e8b6234df060d"><div class="ttname"><a href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">mesos::internal::logger::LogrotateContainerLogger::flags</a></div><div class="ttdeci">Flags flags</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:204</div></div>
+<div class="ttc" id="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger_html_a9efe3b3bece6d7d2c43e8b6234df060d"><div class="ttname"><a href="classmesos_1_1internal_1_1logger_1_1LogrotateContainerLogger.html#a9efe3b3bece6d7d2c43e8b6234df060d">mesos::internal::logger::LogrotateContainerLogger::flags</a></div><div class="ttdeci">Flags flags</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:205</div></div>
 <div class="ttc" id="namespaceos_html_a8d90278daa51c4fe9fcb9e54757187b5"><div class="ttname"><a href="namespaceos.html#a8d90278daa51c4fe9fcb9e54757187b5">os::DEV_NULL</a></div><div class="ttdeci">constexpr char DEV_NULL[]</div><div class="ttdef"><b>Definition:</b> constants.hpp:30</div></div>
 <div class="ttc" id="classBytes_html_a1a2e9277ebe7d227a21f111898c49a8c"><div class="ttname"><a href="classBytes.html#a1a2e9277ebe7d227a21f111898c49a8c">Bytes::bytes</a></div><div class="ttdeci">uint64_t bytes() const </div><div class="ttdef"><b>Definition:</b> bytes.hpp:79</div></div>
 <div class="ttc" id="structmesos_1_1internal_1_1logger_1_1LoggerFlags_html_a701cd92419a47af88b8b3e69596dc9fe"><div class="ttname"><a href="structmesos_1_1internal_1_1logger_1_1LoggerFlags.html#a701cd92419a47af88b8b3e69596dc9fe">mesos::internal::logger::LoggerFlags::logrotate_stdout_options</a></div><div class="ttdeci">Option&lt; std::string &gt; logrotate_stdout_options</div><div class="ttdef"><b>Definition:</b> lib_logrotate.hpp:101</div></div>