You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@mesos.apache.org by gi...@apache.org on 2018/03/14 16:42:58 UTC
[28/51] [partial] mesos-site git commit: Updated the website built
from mesos SHA: ea9470c.
http://git-wip-us.apache.org/repos/asf/mesos-site/blob/764f5077/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2linux_8hpp_source.html
----------------------------------------------------------------------
diff --git a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2linux_8hpp_source.html b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2linux_8hpp_source.html
index 3eba779..474bb49 100644
--- a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2linux_8hpp_source.html
+++ b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2linux_8hpp_source.html
@@ -3,7 +3,7 @@
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
-<meta name="generator" content="Doxygen 1.8.5"/>
+<meta name="generator" content="Doxygen 1.8.11"/>
<title>Apache Mesos: 3rdparty/stout/include/stout/os/linux.hpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
@@ -16,7 +16,7 @@
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
- <td style="padding-left: 0.5em;">
+ <td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Apache Mesos
</div>
</td>
@@ -25,7 +25,7 @@
</table>
</div>
<!-- end header part -->
-<!-- Generated by Doxygen 1.8.5 -->
+<!-- Generated by Doxygen 1.8.11 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
@@ -52,266 +52,9 @@
<div class="title">linux.hpp</div> </div>
</div><!--header-->
<div class="contents">
-<a href="3rdparty_2stout_2include_2stout_2os_2linux_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> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
-<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
-<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div>
-<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
-<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
-<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div>
-<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
-<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
-<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
-<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
-<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div>
-<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
-<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_OS_LINUX_HPP__</span></div>
-<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __STOUT_OS_LINUX_HPP__</span></div>
-<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// This file contains Linux-only OS utilities.</span></div>
-<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __linux__</span></div>
-<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span><span class="preprocessor">#error "stout/os/linux.hpp is only available on Linux systems."</span></div>
-<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor"></span><span class="preprocessor">#endif // __linux__</span></div>
-<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <sys/mman.h></span></div>
-<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <sys/types.h></span> <span class="comment">// For pid_t.</span></div>
-<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
-<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <list></span></div>
-<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <queue></span></div>
-<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <set></span></div>
-<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <string></span></div>
-<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
-<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div>
-<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="foreach_8hpp.html">stout/foreach.hpp</a>></span></div>
-<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div>
-<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div>
-<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="proc_8hpp.html">stout/proc.hpp</a>></span></div>
-<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div>
-<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div>
-<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
-<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="stout_2include_2stout_2os_2process_8hpp.html">stout/os/process.hpp</a>></span></div>
-<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
-<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span>os {</div>
-<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
-<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
-<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// Helper for clone() which expects an int(void*).</span></div>
-<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="namespaceprocess_1_1internal.html#a902e2646d88c41ce674a3009cafe0aad">childMain</a>(<span class="keywordtype">void</span>* _func)</div>
-<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div>
-<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> lambda::function<int()>* func =</div>
-<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span>lambda::function<int()>*<span class="keyword">></span> (_func);</div>
-<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
-<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> (*func)();</div>
-<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div>
-<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
-<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
-<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// Helper that captures information about a stack to be used when</span></div>
-<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// invoking clone.</span></div>
-<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html"> 54</a></span> <span class="keyword">class </span><a class="code" href="classos_1_1Stack.html">Stack</a></div>
-<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div>
-<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">public</span>:</div>
-<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// 8 MiB is the default for "ulimit -s" on OSX and Linux.</span></div>
-<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0"> 58</a></span>  <span class="keyword">static</span> constexpr <span class="keywordtype">size_t</span> <a class="code" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0">DEFAULT_SIZE</a> = 8 * 1024 * 1024;</div>
-<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
-<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// Allocate a stack. Note that this is NOT async signal safe, nor</span></div>
-<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// safe to call between fork and exec.</span></div>
-<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#a248fb0d3d52e903c887890d0155f70b7"> 62</a></span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<Stack></a> <a class="code" href="classos_1_1Stack.html#a248fb0d3d52e903c887890d0155f70b7">create</a>(<span class="keywordtype">size_t</span> size)</div>
-<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div>
-<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="classos_1_1Stack.html">Stack</a> stack(size);</div>
-<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
-<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (!stack.<a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()) {</div>
-<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div>
-<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div>
-<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
-<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> stack;</div>
-<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
-<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
-<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#aa892eb721034afeb9a97a28ac6d8fd41"> 73</a></span>  <span class="keyword">explicit</span> <a class="code" href="classos_1_1Stack.html#aa892eb721034afeb9a97a28ac6d8fd41">Stack</a>(<span class="keywordtype">size_t</span> size_) : size(size_) {}</div>
-<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
-<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Allocate the stack using mmap. We avoid malloc because we want</span></div>
-<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// this to be safe to use between fork and exec where malloc might</span></div>
-<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// deadlock. Returns false and sets `errno` on failure.</span></div>
-<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9"> 78</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()</div>
-<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div>
-<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a> = MAP_PRIVATE | MAP_ANONYMOUS;</div>
-<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
-<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#if defined(MAP_STACK)</span></div>
-<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"></span> flags |= MAP_STACK;</div>
-<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  address = ::mmap(<span class="keyword">nullptr</span>, size, PROT_READ | PROT_WRITE, flags, -1, 0);</div>
-<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (address == MAP_FAILED) {</div>
-<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
-<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
-<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
-<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
-<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// Explicitly free the stack.</span></div>
-<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// The destructor won't free the allocated stack.</span></div>
-<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265"> 96</a></span>  <span class="keywordtype">void</span> <a class="code" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265">deallocate</a>()</div>
-<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div>
-<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  PCHECK(::munmap(address, size) == 0);</div>
-<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  address = MAP_FAILED;</div>
-<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div>
-<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
-<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// Stack grows down, return the first usable address.</span></div>
-<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f"> 103</a></span>  <span class="keywordtype">char</span>* <a class="code" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f">start</a>()<span class="keyword"> const</span></div>
-<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword"> </span>{</div>
-<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> address == MAP_FAILED</div>
-<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  ? <span class="keyword">nullptr</span></div>
-<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  : (<span class="keyword">static_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(address) + size);</div>
-<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div>
-<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
-<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">private</span>:</div>
-<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">size_t</span> size;</div>
-<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">void</span>* address = MAP_FAILED;</div>
-<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> };</div>
-<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
-<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
-<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="namespaceos_1_1signal__safe.html"> 116</a></span> <span class="keyword">namespace </span>signal_safe {</div>
-<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
-<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
-<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="namespaceos_1_1signal__safe.html#a0f7ad48cdb581ef66ce15257f0e8947a"> 119</a></span> <span class="keyword">inline</span> <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="namespaceos_1_1signal__safe.html#a0f7ad48cdb581ef66ce15257f0e8947a">clone</a>(</div>
-<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">const</span> <a class="code" href="classos_1_1Stack.html">Stack</a>& stack,</div>
-<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>,</div>
-<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& func)</div>
-<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div>
-<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="namespacens.html#a98bf4d9e11d546326250997a6493f835">return ::clone</a>(childMain, stack.<a class="code" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f">start</a>(), <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>, (<span class="keywordtype">void</span>*) &func);</div>
-<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div>
-<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
-<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> } <span class="comment">// namespace signal_safe {</span></div>
-<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
-<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
-<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd"> 130</a></span> <span class="keyword">inline</span> <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd">clone</a>(</div>
-<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& func,</div>
-<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>)</div>
-<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> {</div>
-<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Stack for the child.</span></div>
-<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// NOTE: We need to allocate the stack dynamically. This is because</span></div>
-<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// glibc's 'clone' will modify the stack passed to it, therefore the</span></div>
-<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// stack must NOT be shared as multiple 'clone's can be invoked</span></div>
-<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// simultaneously.</span></div>
-<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="classos_1_1Stack.html">Stack</a> stack(<a class="code" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0">Stack::DEFAULT_SIZE</a>);</div>
-<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
-<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">if</span> (!stack.<a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()) {</div>
-<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// TODO(jpeach): In MESOS-8155, we will return an</span></div>
-<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// ErrnoError() here, but for now keep the interface</span></div>
-<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// compatible.</span></div>
-<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> -1;</div>
-<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
-<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
-<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid = <a class="code" href="namespaceos_1_1signal__safe.html#a0f7ad48cdb581ef66ce15257f0e8947a">signal_safe::clone</a>(stack, flags, func);</div>
-<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
-<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// Given we allocated the stack ourselves, there are two</span></div>
-<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// circumstances where we need to delete the allocated stack to</span></div>
-<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// avoid a memory leak:</span></div>
-<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// (1) Failed to clone.</span></div>
-<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// (2) CLONE_VM is not set implying ::clone will create a process</span></div>
-<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// which runs in its own copy of the memory space of the</span></div>
-<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// calling process. If CLONE_VM is set ::clone will create a</span></div>
-<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// thread which runs in the same memory space with the calling</span></div>
-<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// process, in which case we don't want to call delete!</span></div>
-<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// TODO(jpeach): In case (2) we will leak the stack memory.</span></div>
-<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (pid < 0 || !(flags & CLONE_VM)) {</div>
-<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  stack.<a class="code" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265">deallocate</a>();</div>
-<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div>
-<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
-<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> pid;</div>
-<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div>
-<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
-<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
-<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Process></a> <a class="code" href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">process</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid)</div>
-<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> {</div>
-<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Page size, used for memory accounting.</span></div>
-<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> pageSize = <a class="code" href="namespaceos.html#af0898f40a19c3804347e30b9efa0984a">os::pagesize</a>();</div>
-<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
-<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// Number of clock ticks per second, used for cpu accounting.</span></div>
-<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">long</span> ticks = sysconf(_SC_CLK_TCK);</div>
-<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (ticks <= 0) {</div>
-<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to get sysconf(_SC_CLK_TCK)"</span>);</div>
-<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
-<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
-<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <a class="code" href="classResult.html">Result<proc::ProcessStatus></a> <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a> = <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">proc::status</a>(pid);</div>
-<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
-<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> (status.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div>
-<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(status.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div>
-<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
-<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
-<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (status.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div>
-<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div>
-<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
-<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
-<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// There are known bugs with invalid utime / stime values coming</span></div>
-<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="comment">// from /proc/<pid>/stat on some Linux systems.</span></div>
-<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// See the following thread for details:</span></div>
-<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// http://mail-archives.apache.org/mod_mbox/incubator-mesos-dev/</span></div>
-<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">// 201307.mbox/%3CCA+2n2er-Nemh0CsKLbHRkaHd=YCrNt17NLUPM2=TtEfsKOw4</span></div>
-<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// Rg@mail.gmail.com%3E</span></div>
-<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// These are similar reports:</span></div>
-<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">// http://lkml.indiana.edu/hypermail/linux/kernel/1207.1/01388.html</span></div>
-<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1023214</span></div>
-<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="classTry.html">Try<Duration></a> <a class="code" href="namespaceos.html#a818327458964860a86fc8964e4795b4d">utime</a> = <a class="code" href="classDuration.html#a70f3ccdaba8dd6d0a1c2eddde1d1327a">Duration::create</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#a9095310f297abb51a4391a9f7c5f1b2d">utime</a> / (<span class="keywordtype">double</span>)ticks);</div>
-<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classTry.html">Try<Duration></a> stime = <a class="code" href="classDuration.html#a70f3ccdaba8dd6d0a1c2eddde1d1327a">Duration::create</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#ab4802140d5c18cebaf83e738b5e8507d">stime</a> / (<span class="keywordtype">double</span>)ticks);</div>
-<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
-<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// The command line from 'status->comm' is only "arg0" from "argv"</span></div>
-<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// (i.e., the canonical executable name). To get the entire command</span></div>
-<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// line we grab '/proc/[pid]/cmdline'.</span></div>
-<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="classResult.html">Result<std::string></a> <a class="code" href="namespaceproc.html#a4ba22836c31ab565d5670129aac0a34d">cmdline</a> = <a class="code" href="namespaceproc.html#a4ba22836c31ab565d5670129aac0a34d">proc::cmdline</a>(pid);</div>
-<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
-<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> Process(</div>
-<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#afd1efc7ade695e958b4f523cb4c65bbd">pid</a>,</div>
-<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#ad0a83e9d469cab01eb3ceb70ab7f108d">ppid</a>,</div>
-<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#a3ae685cf9da43d9751f12dbbd7384c18">pgrp</a>,</div>
-<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#a236d914363d3ca4e748a6d539dcf28d5">session</a>,</div>
-<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="classBytes.html">Bytes</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#a42c4886162f88b8efd2422df00083955">rss</a> * pageSize),</div>
-<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  utime.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() ? utime.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>() : <a class="code" href="classOption.html#aca73609603df4687dba70c2a5df47ef8">Option<Duration>::none</a>(),</div>
-<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  stime.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() ? stime.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>() : <a class="code" href="classOption.html#aca73609603df4687dba70c2a5df47ef8">Option<Duration>::none</a>(),</div>
-<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  cmdline.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>() ? cmdline.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>() : status-><a class="code" href="structproc_1_1ProcessStatus.html#aa33c57506955b0c77587a6152840fb3a">comm</a>,</div>
-<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#ac8b4bc0e80bf560b45e2bba608b9a764">state</a> == <span class="charliteral">'Z'</span>);</div>
-<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> }</div>
-<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
-<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
-<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespaceos.html#a42af1cab63434cedf2b698cd6f49f073">pids</a>()</div>
-<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> {</div>
-<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceproc.html#a810141e1502dd8b9a7a410da6caf7ed7">proc::pids</a>();</div>
-<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> }</div>
-<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
-<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
-<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// Returns the total size of main and free memory.</span></div>
-<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Memory></a> <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>()</div>
-<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> {</div>
-<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  Memory <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>;</div>
-<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
-<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">struct </span>sysinfo info;</div>
-<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (sysinfo(&info) != 0) {</div>
-<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div>
-<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div>
-<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
-<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"># if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 23)</span></div>
-<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor"></span> memory.total = <a class="code" href="classBytes.html">Bytes</a>(info.totalram * info.mem_unit);</div>
-<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  memory.free = <a class="code" href="classBytes.html">Bytes</a>(info.freeram * info.mem_unit);</div>
-<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  memory.totalSwap = <a class="code" href="classBytes.html">Bytes</a>(info.totalswap * info.mem_unit);</div>
-<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  memory.freeSwap = <a class="code" href="classBytes.html">Bytes</a>(info.freeswap * info.mem_unit);</div>
-<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="preprocessor"># else</span></div>
-<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="preprocessor"></span> memory.total = <a class="code" href="classBytes.html">Bytes</a>(info.totalram);</div>
-<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  memory.free = <a class="code" href="classBytes.html">Bytes</a>(info.freeram);</div>
-<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  memory.totalSwap = <a class="code" href="classBytes.html">Bytes</a>(info.totalswap);</div>
-<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  memory.freeSwap = <a class="code" href="classBytes.html">Bytes</a>(info.freeswap);</div>
-<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor"># endif</span></div>
-<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>;</div>
-<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> }</div>
-<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
-<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> } <span class="comment">// namespace os {</span></div>
-<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
-<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor">#endif // __STOUT_OS_LINUX_HPP__</span></div>
-<div class="ttc" id="structproc_1_1ProcessStatus_html_a3ae685cf9da43d9751f12dbbd7384c18"><div class="ttname"><a href="structproc_1_1ProcessStatus.html#a3ae685cf9da43d9751f12dbbd7384c18">proc::ProcessStatus::pgrp</a></div><div class="ttdeci">const pid_t pgrp</div><div class="ttdef"><b>Definition:</b> proc.hpp:130</div></div>
+<a href="3rdparty_2stout_2include_2stout_2os_2linux_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> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&
#160;<span class="comment">//</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 1
2</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_OS_LINUX_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __STOUT_OS_LINUX_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// This file contains Linux-only OS utilities.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __linux__</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#error "stout/os/linux.hpp is only available on Linux systems."</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif
// __linux__</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <sys/mman.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <sys/types.h></span> <span class="comment">// For pid_t.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <list></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <queue></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <set></span></div><div class="line"><a name="l00027"></a><span class="l
ineno"> 27</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="foreach_8hpp.html">stout/foreach.hpp</a>></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div><div class="line"><a name="l00033"></a><span
class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="proc_8hpp.html">stout/proc.hpp</a>></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="stout_2include_2stout_2os_2process_8hpp.html">stout/os/process.hpp</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>
 <span class="keyword">namespace </span><a class="code" href="namespaceos.html">os</a> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// Helper for clone() which expects an int(void*).</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="namespaceprocess_1_1internal.html#a902e2646d88c41ce674a3009cafe0aad">childMain</a>(<span class="keywordtype">void</span>* _func)</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> lambda::function<int()>* func =</div><div class="line"
><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span>lambda::function<int()>*<span class="keyword">></span> (_func);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> (*func)();</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// Helper that captures information about a stack to be used when</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// invoking clone.</span
></div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html"> 54</a></span> <span class="keyword">class </span><a class="code" href="classos_1_1Stack.html">Stack</a></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// 8 MiB is the default for "ulimit -s" on OSX and Linux.</span></div><div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0"> 58</a></span>  <span class="keyword">static</span> constexpr <span class="keywordtype">size_t</span> <a class="code" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0">DEFAULT_SIZE</a> = 8 * 1024 * 1024;</div><div class="
line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// Allocate a stack. Note that this is NOT async signal safe, nor</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// safe to call between fork and exec.</span></div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#a248fb0d3d52e903c887890d0155f70b7"> 62</a></span>  <span class="keyword">static</span> <a class="code" href="classTry.html">Try<Stack></a> <a class="code" href="classos_1_1Stack.html#a248fb0d3d52e903c887890d0155f70b7">create</a>(<span class="keywordtype">size_t</span> size)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="cla
ssos_1_1Stack.html">Stack</a> stack(size);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (!stack.<a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()) {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> stack;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="
lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#aa892eb721034afeb9a97a28ac6d8fd41"> 73</a></span>  <span class="keyword">explicit</span> <a class="code" href="classos_1_1Stack.html#aa892eb721034afeb9a97a28ac6d8fd41">Stack</a>(<span class="keywordtype">size_t</span> size_) : size(size_) {}</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Allocate the stack using mmap. We avoid malloc because we want</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// this to be safe to use between fork and exec where malloc might</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// deadlock. Returns false and sets `errno` on failure.</sp
an></div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9"> 78</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceflags.html">flags</a> = MAP_PRIVATE | MAP_ANONYMOUS;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#if defined(MAP_STACK)</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  flags |= MAP_STACK;</div><div class="line"><a name="l00084"></a><span class="lineno">
84</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  address = ::mmap(<span class="keyword">nullptr</span>, size, PROT_READ | PROT_WRITE, flags, -1, 0);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (address == MAP_FAILED) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="lin
e"><a name="l00092"></a><span class="lineno"> 92</span>  }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// Explicitly free the stack.</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// The destructor won't free the allocated stack.</span></div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265"> 96</a></span>  <span class="keywordtype">void</span> <a class="code" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265">deallocate</a>()</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  PCHECK(::munmap(address, size) == 0);</div><div class="lin
e"><a name="l00099"></a><span class="lineno"> 99</span>  address = MAP_FAILED;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// Stack grows down, return the first usable address.</span></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f"> 103</a></span>  <span class="keywordtype">char</span>* <a class="code" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f">start</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return<
/span> address == MAP_FAILED</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  ? <span class="keyword">nullptr</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  : (<span class="keyword">static_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(address) + size);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">size_t</span> size;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">void</span>* address = MAP_FAILED;</div><div class="line"><a name="l00113"></a><
span class="lineno"> 113</span> };</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="namespaceos_1_1signal__safe.html"> 116</a></span> <span class="keyword">namespace </span>signal_safe {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="namespaceos_1_1signal__safe.html#a0f7ad48cdb581ef66ce15257f0e8947a"> 119</a></span> <span class="keyword">inline</span> <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd">clone</a>(</div><di
v class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">const</span> <a class="code" href="classos_1_1Stack.html">Stack</a>& stack,</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceflags.html">flags</a>,</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& func)</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd">return ::clone</a>(childMain, stack.<a class="code" href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f">start</a>(), <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae8
5c6">flags</a>, (<span class="keywordtype">void</span>*) &func);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> } <span class="comment">// namespace signal_safe {</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd"> 130</a></span> <span class="keyword">inline</span> <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="namespaceos.html#aa2af722f5663b0e63d1839a468b472dd">clone</a>(</div><div class="line"><a name="l00131"></a><span
class="lineno"> 131</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& func,</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceflags.html">flags</a>)</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Stack for the child.</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">//</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// NOTE: We need to allocate the stack dynamically. This is because</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// glibc's 'clone' will modify t
he stack passed to it, therefore the</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// stack must NOT be shared as multiple 'clone's can be invoked</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// simultaneously.</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="classos_1_1Stack.html">Stack</a> stack(<a class="code" href="classos_1_1Stack.html#af5c1f11af9592d666dd1705d5393d4d0">Stack::DEFAULT_SIZE</a>);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">if</span> (!stack.<a class="code" href="classos_1_1Stack.html#ae52b904f7729658bee38b8fe9aeb82c9">allocate</a>()) {</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</s
pan>  <span class="comment">// TODO(jpeach): In MESOS-8155, we will return an</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// ErrnoError() here, but for now keep the interface</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// compatible.</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid = <a class="code" href="namespaceos_1_1signal__safe.html#a0f7ad48cdb581ef66ce15257f0e8947a">sig
nal_safe::clone</a>(stack, flags, func);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// Given we allocated the stack ourselves, there are two</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// circumstances where we need to delete the allocated stack to</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// avoid a memory leak:</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">//</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// (1) Failed to clone.</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">//</span></div><div cla
ss="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// (2) CLONE_VM is not set implying ::clone will create a process</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// which runs in its own copy of the memory space of the</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// calling process. If CLONE_VM is set ::clone will create a</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// thread which runs in the same memory space with the calling</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// process, in which case we don't want to call delete!</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">//</span><
/div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// TODO(jpeach): In case (2) we will leak the stack memory.</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (pid < 0 || !(flags & CLONE_VM)) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  stack.<a class="code" href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265">deallocate</a>();</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> pid;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <
/div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<Process></a> <a class="code" href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">process</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid)</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Page size, used for memory accounting.</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> pageSize = <a class="code" href="namespaceos.html#af0898f40a19c3804347e30b9efa0984
a">os::pagesize</a>();</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// Number of clock ticks per second, used for cpu accounting.</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">long</span> ticks = sysconf(_SC_CLK_TCK);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (ticks <= 0) {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to get sysconf(_SC_CLK_TCK)"</span>);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div
><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <a class="code" href="classResult.html">Result<proc::ProcessStatus></a> <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a> = <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">proc::status</a>(pid);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> (status.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(status.<a class="code" href="classResult.html#a521a
df96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (status.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// There are known bugs with invalid utime / stime values coming</span></div><div class="line"><a name="l00
194"></a><span class="lineno"> 194</span>  <span class="comment">// from /proc/<pid>/stat on some Linux systems.</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// See the following thread for details:</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// http://mail-archives.apache.org/mod_mbox/incubator-mesos-dev/</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">// 201307.mbox/%3CCA+2n2er-Nemh0CsKLbHRkaHd=YCrNt17NLUPM2=TtEfsKOw4</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// Rg@mail.gmail.com%3E</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// These are similar reports:</span></div><div class="line"><a name="l00200"></a><span class="lineno">
200</span>  <span class="comment">// http://lkml.indiana.edu/hypermail/linux/kernel/1207.1/01388.html</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1023214</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="classTry.html">Try<Duration></a> <a class="code" href="namespaceos.html#a818327458964860a86fc8964e4795b4d">utime</a> = <a class="code" href="classDuration.html#a70f3ccdaba8dd6d0a1c2eddde1d1327a">Duration::create</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#a9095310f297abb51a4391a9f7c5f1b2d">utime</a> / (<span class="keywordtype">double</span>)ticks);</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classTry.html">Try<Duration></a> stime = <a class="code" href="classDuration.html#a70f3ccdaba8dd6d0
a1c2eddde1d1327a">Duration::create</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#ab4802140d5c18cebaf83e738b5e8507d">stime</a> / (<span class="keywordtype">double</span>)ticks);</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// The command line from 'status->comm' is only "arg0" from "argv"</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// (i.e., the canonical executable name). To get the entire command</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// line we grab '/proc/[pid]/cmdline'.</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="classResult.html">Result<std::string></a> <a
class="code" href="namespaceproc.html#a4ba22836c31ab565d5670129aac0a34d">cmdline</a> = <a class="code" href="namespaceproc.html#a4ba22836c31ab565d5670129aac0a34d">proc::cmdline</a>(pid);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> <a class="code" href="structos_1_1Process.html">Process</a>(</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#afd1efc7ade695e958b4f523cb4c65bbd">pid</a>,</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#ad0a83e9d469cab01eb3ceb70ab7f108d">ppid</a>,</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  status-><a class="code" href="structproc_1_1Proc
essStatus.html#a3ae685cf9da43d9751f12dbbd7384c18">pgrp</a>,</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#a236d914363d3ca4e748a6d539dcf28d5">session</a>,</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="classBytes.html">Bytes</a>(status-><a class="code" href="structproc_1_1ProcessStatus.html#a42c4886162f88b8efd2422df00083955">rss</a> * pageSize),</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  utime.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() ? utime.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>() : <a class="code" href="classOption.html#aca73609603df4687dba70c2a5df47ef8">Option<Duration>::none</a>(),</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  stime
.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>() ? stime.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>() : <a class="code" href="classOption.html#aca73609603df4687dba70c2a5df47ef8">Option<Duration>::none</a>(),</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  cmdline.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>() ? cmdline.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>() : status-><a class="code" href="structproc_1_1ProcessStatus.html#aa33c57506955b0c77587a6152840fb3a">comm</a>,</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  status-><a class="code" href="structproc_1_1ProcessStatus.html#ac8b4bc0e80bf560b45e2bba608b9a764">state</a> == <span class="charliteral">'Z'</span>);</div><div class="line"><a name="l00220"></a><span class="lineno"> 220
</span> }</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespaceos.html#a42af1cab63434cedf2b698cd6f49f073">pids</a>()</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceproc.html#a810141e1502dd8b9a7a410da6caf7ed7">proc::pids</a>();</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> }</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno
"> 228</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// Returns the total size of main and free memory.</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Memory></a> <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>()</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> {</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <a class="code" href="structos_1_1Memory.html">Memory</a> <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">struct </span>sysinfo info;</div><div class
="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (sysinfo(&info) != 0) {</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"># if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 23)</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  memory.<a class="code" href="structos_1_1Memory.html#a3670204f7fb13a96ca0e278f49b91282">total</a> = <a class="code" href="classBytes.html">Bytes</a>(info.totalram * info.mem_unit);</div><div class="line"><a name="l00241"></a><span class="lineno">
241</span>  memory.<a class="code" href="structos_1_1Memory.html#ab447e8e30892e0d5f0e3a976e6d80cde">free</a> = <a class="code" href="classBytes.html">Bytes</a>(info.freeram * info.mem_unit);</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  memory.<a class="code" href="structos_1_1Memory.html#a00f1a2071778c1ce10eff411fae079d5">totalSwap</a> = <a class="code" href="classBytes.html">Bytes</a>(info.totalswap * info.mem_unit);</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  memory.<a class="code" href="structos_1_1Memory.html#a99857d2d965390fe2e88f417037dce55">freeSwap</a> = <a class="code" href="classBytes.html">Bytes</a>(info.freeswap * info.mem_unit);</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="preprocessor"># else</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  memory.<a class="code" href="structos_1_1Memory.h
tml#a3670204f7fb13a96ca0e278f49b91282">total</a> = <a class="code" href="classBytes.html">Bytes</a>(info.totalram);</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  memory.<a class="code" href="structos_1_1Memory.html#ab447e8e30892e0d5f0e3a976e6d80cde">free</a> = <a class="code" href="classBytes.html">Bytes</a>(info.freeram);</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  memory.<a class="code" href="structos_1_1Memory.html#a00f1a2071778c1ce10eff411fae079d5">totalSwap</a> = <a class="code" href="classBytes.html">Bytes</a>(info.totalswap);</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  memory.<a class="code" href="structos_1_1Memory.html#a99857d2d965390fe2e88f417037dce55">freeSwap</a> = <a class="code" href="classBytes.html">Bytes</a>(info.freeswap);</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor"># endif</span><
/div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceos.html#a23a7b8f4b4c145ad212381e89d4b6dc4">memory</a>;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> }</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> } <span class="comment">// namespace os {</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor">#endif // __STOUT_OS_LINUX_HPP__</span></div><div class="ttc" id="structproc_1_1ProcessStatus_html_a3ae685cf9da43d9751f12dbbd7384c18"><div class="ttname"><a href="structproc_1_1ProcessStatus.html#a3ae685cf9d
a43d9751f12dbbd7384c18">proc::ProcessStatus::pgrp</a></div><div class="ttdeci">const pid_t pgrp</div><div class="ttdef"><b>Definition:</b> proc.hpp:130</div></div>
<div class="ttc" id="classResult_html_ac2cdc0db9f9d29a5bb2f1cf19c29da49"><div class="ttname"><a href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">Result::isNone</a></div><div class="ttdeci">bool isNone() const </div><div class="ttdef"><b>Definition:</b> result.hpp:112</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="namespacens_html_a98bf4d9e11d546326250997a6493f835"><div class="ttname"><a href="namespacens.html#a98bf4d9e11d546326250997a6493f835">ns::clone</a></div><div class="ttdeci">Try< pid_t > clone(pid_t target, int nstypes, const lambda::function< int()> &f, int flags)</div><div class="ttdoc">Performs an os::clone after entering a set of namespaces for the specified target process...</div></div>
<div class="ttc" id="classos_1_1Stack_html_aa5b0858e49e36141b299ef45e6d1b265"><div class="ttname"><a href="classos_1_1Stack.html#aa5b0858e49e36141b299ef45e6d1b265">os::Stack::deallocate</a></div><div class="ttdeci">void deallocate()</div><div class="ttdef"><b>Definition:</b> linux.hpp:96</div></div>
<div class="ttc" id="classos_1_1Stack_html_a15a1637e699c755a2cd2cef394ec216f"><div class="ttname"><a href="classos_1_1Stack.html#a15a1637e699c755a2cd2cef394ec216f">os::Stack::start</a></div><div class="ttdeci">char * start() const </div><div class="ttdef"><b>Definition:</b> linux.hpp:103</div></div>
<div class="ttc" id="classTry_html_a8bc7f43e75a47111ea18e9c83b007be5"><div class="ttname"><a href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">Try::get</a></div><div class="ttdeci">T & get()&</div><div class="ttdef"><b>Definition:</b> try.hpp:73</div></div>
@@ -322,11 +65,15 @@
<div class="ttc" id="structproc_1_1ProcessStatus_html_ad0a83e9d469cab01eb3ceb70ab7f108d"><div class="ttname"><a href="structproc_1_1ProcessStatus.html#ad0a83e9d469cab01eb3ceb70ab7f108d">proc::ProcessStatus::ppid</a></div><div class="ttdeci">const pid_t ppid</div><div class="ttdef"><b>Definition:</b> proc.hpp:129</div></div>
<div class="ttc" id="classDuration_html_a70f3ccdaba8dd6d0a1c2eddde1d1327a"><div class="ttname"><a href="classDuration.html#a70f3ccdaba8dd6d0a1c2eddde1d1327a">Duration::create</a></div><div class="ttdeci">static Try< Duration > create(double seconds)</div><div class="ttdef"><b>Definition:</b> duration.hpp:418</div></div>
<div class="ttc" id="classErrnoError_html"><div class="ttname"><a href="classErrnoError.html">ErrnoError</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:49</div></div>
+<div class="ttc" id="namespaceos_html"><div class="ttname"><a href="namespaceos.html">os</a></div><div class="ttdef"><b>Definition:</b> posix_signalhandler.hpp:23</div></div>
<div class="ttc" id="result_8hpp_html"><div class="ttname"><a href="result_8hpp.html">result.hpp</a></div></div>
<div class="ttc" id="classResult_html"><div class="ttname"><a href="classResult.html">Result</a></div><div class="ttdef"><b>Definition:</b> check.hpp:30</div></div>
+<div class="ttc" id="structos_1_1Memory_html_a99857d2d965390fe2e88f417037dce55"><div class="ttname"><a href="structos_1_1Memory.html#a99857d2d965390fe2e88f417037dce55">os::Memory::freeSwap</a></div><div class="ttdeci">Bytes freeSwap</div><div class="ttdef"><b>Definition:</b> os.hpp:39</div></div>
<div class="ttc" id="lambda_8hpp_html"><div class="ttname"><a href="lambda_8hpp.html">lambda.hpp</a></div></div>
<div class="ttc" id="structproc_1_1ProcessStatus_html_a42c4886162f88b8efd2422df00083955"><div class=
<TRUNCATED>