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Posted to commits@mesos.apache.org by gi...@apache.org on 2017/10/19 16:24:45 UTC
[4/6] mesos-site git commit: Updated the website built from mesos
SHA: 725dfcd.
http://git-wip-us.apache.org/repos/asf/mesos-site/blob/46bb76dc/content/api/latest/c++/ns_8hpp_source.html
----------------------------------------------------------------------
diff --git a/content/api/latest/c++/ns_8hpp_source.html b/content/api/latest/c++/ns_8hpp_source.html
index 2ace93d..db4c0ba 100644
--- a/content/api/latest/c++/ns_8hpp_source.html
+++ b/content/api/latest/c++/ns_8hpp_source.html
@@ -93,593 +93,595 @@
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="os_8hpp.html">stout/os.hpp</a>></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="path_8hpp.html">stout/path.hpp</a>></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <<a class="code" href="proc_8hpp.html">stout/proc.hpp</a>></span></div>
-<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div>
-<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div>
-<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div>
-<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
-<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <<a class="code" href="exists_8hpp.html">stout/os/exists.hpp</a>></span></div>
-<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <<a class="code" href="ls_8hpp.html">stout/os/ls.hpp</a>></span></div>
-<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
-<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <<a class="code" href="collect_8hpp.html">process/collect.hpp</a>></span></div>
-<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include <<a class="code" href="future_8hpp.html">process/future.hpp</a>></span></div>
-<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include <<a class="code" href="reap_8hpp.html">process/reap.hpp</a>></span></div>
-<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
-<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include "<a class="code" href="status__utils_8hpp.html">common/status_utils.hpp</a>"</span></div>
-<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
-<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#ifndef CLONE_NEWNS</span></div>
-<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4"> 56</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNS 0x00020000</span></div>
-<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#ifndef CLONE_NEWUTS</span></div>
-<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3"> 60</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUTS 0x04000000</span></div>
-<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#ifndef CLONE_NEWIPC</span></div>
-<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3"> 64</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWIPC 0x08000000</span></div>
-<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#ifndef CLONE_NEWPID</span></div>
-<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4"> 68</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWPID 0x20000000</span></div>
-<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#ifndef CLONE_NEWNET</span></div>
-<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce"> 72</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNET 0x40000000</span></div>
-<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#ifndef CLONE_NEWUSER</span></div>
-<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87"> 76</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUSER 0x10000000</span></div>
-<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#ifndef CLONE_NEWCGROUP</span></div>
-<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a"> 80</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWCGROUP 0x02000000</span></div>
-<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span></div>
-<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// Define a 'setns' for compilation environments that don't already</span></div>
-<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// have one.</span></div>
-<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089"> 85</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089">setns</a>(<span class="keywordtype">int</span> fd, <span class="keywordtype">int</span> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>)</div>
-<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> {</div>
-<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#ifdef SYS_setns</span></div>
-<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"></span> return ::syscall(SYS_setns, fd, nstype);</div>
-<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#elif defined(__x86_64__)</span></div>
-<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"></span> <span class="comment">// A workaround for those hosts that have an old glibc (older than</span></div>
-<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// 2.14) but have a new kernel. The magic number '308' here is the</span></div>
-<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// syscall number for 'setns' on x86_64 architecture.</span></div>
-<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  return ::syscall(308, fd, nstype);</div>
-<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor">#else</span></div>
-<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"></span><span class="preprocessor">#error "setns is not available"</span></div>
-<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
-<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"></span>}</div>
-<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
-<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="namespacens.html"> 99</a></span> <span class="keyword">namespace </span>ns {</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> <span class="comment">// Returns the nstype (e.g., CLONE_NEWNET, CLONE_NEWNS, etc.) for the</span></div>
-<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// given namespace which can be used when calling ::setns.</span></div>
-<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e"> 103</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(<span class="keyword">const</span> std::string& ns)</div>
-<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> {</div>
-<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> <a class="code" href="classhashmap.html">hashmap<std::string, int></a> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a> = {</div>
-<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {<span class="stringliteral">"mnt"</span>, <a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>},</div>
-<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {<span class="stringliteral">"uts"</span>, <a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>},</div>
-<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {<span class="stringliteral">"ipc"</span>, <a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>},</div>
-<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {<span class="stringliteral">"net"</span>, <a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>},</div>
-<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {<span class="stringliteral">"user"</span>, <a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>},</div>
-<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  {<span class="stringliteral">"pid"</span>, <a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>},</div>
-<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {<span class="stringliteral">"cgroup"</span>, <a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>}</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>  <a class="code" href="classOption.html">Option<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = nstypes.<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>(ns);</div>
-<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
-<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classOption.html#a06eab791122ebc1f8af4ad310e5e7d7e">isNone</a>()) {</div>
-<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unknown namespace '"</span> + ns + <span class="stringliteral">"'"</span>);</div>
-<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div>
-<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
-<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> nstype.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>();</div>
-<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> }</div>
-<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
+<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div>
+<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div>
+<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div>
+<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div>
+<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
+<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include <<a class="code" href="exists_8hpp.html">stout/os/exists.hpp</a>></span></div>
+<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <<a class="code" href="ls_8hpp.html">stout/os/ls.hpp</a>></span></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> <span class="preprocessor">#include <<a class="code" href="collect_8hpp.html">process/collect.hpp</a>></span></div>
+<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include <<a class="code" href="future_8hpp.html">process/future.hpp</a>></span></div>
+<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include <<a class="code" href="reap_8hpp.html">process/reap.hpp</a>></span></div>
+<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
+<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "<a class="code" href="status__utils_8hpp.html">common/status_utils.hpp</a>"</span></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="preprocessor">#ifndef CLONE_NEWNS</span></div>
+<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4"> 57</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNS 0x00020000</span></div>
+<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#ifndef CLONE_NEWUTS</span></div>
+<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3"> 61</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUTS 0x04000000</span></div>
+<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#ifndef CLONE_NEWIPC</span></div>
+<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3"> 65</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWIPC 0x08000000</span></div>
+<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#ifndef CLONE_NEWPID</span></div>
+<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4"> 69</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWPID 0x20000000</span></div>
+<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#ifndef CLONE_NEWNET</span></div>
+<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce"> 73</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWNET 0x40000000</span></div>
+<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#ifndef CLONE_NEWUSER</span></div>
+<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87"> 77</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWUSER 0x10000000</span></div>
+<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#ifndef CLONE_NEWCGROUP</span></div>
+<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a"> 81</a></span> <span class="preprocessor"></span><span class="preprocessor">#define CLONE_NEWCGROUP 0x02000000</span></div>
+<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// Define a 'setns' for compilation environments that don't already</span></div>
+<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// have one.</span></div>
+<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089"> 86</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="ns_8hpp.html#a9aa5c2738ac9781ed9cd8202d87fb089">setns</a>(<span class="keywordtype">int</span> fd, <span class="keywordtype">int</span> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>)</div>
+<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> {</div>
+<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#ifdef SYS_setns</span></div>
+<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor"></span> return ::syscall(SYS_setns, fd, nstype);</div>
+<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#elif defined(__x86_64__)</span></div>
+<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor"></span> <span class="comment">// A workaround for those hosts that have an old glibc (older than</span></div>
+<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// 2.14) but have a new kernel. The magic number '308' here is the</span></div>
+<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// syscall number for 'setns' on x86_64 architecture.</span></div>
+<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  return ::syscall(308, fd, nstype);</div>
+<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#else</span></div>
+<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor"></span><span class="preprocessor">#error "setns is not available"</span></div>
+<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
+<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"></span>}</div>
+<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
+<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="namespacens.html"> 100</a></span> <span class="keyword">namespace </span>ns {</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">// Returns the nstype (e.g., CLONE_NEWNET, CLONE_NEWNS, etc.) for the</span></div>
+<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// given namespace which can be used when calling ::setns.</span></div>
+<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e"> 104</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(<span class="keyword">const</span> std::string& ns)</div>
+<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> {</div>
+<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> <a class="code" href="classhashmap.html">hashmap<std::string, int></a> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a> = {</div>
+<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {<span class="stringliteral">"mnt"</span>, <a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>},</div>
+<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {<span class="stringliteral">"uts"</span>, <a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>},</div>
+<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {<span class="stringliteral">"ipc"</span>, <a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>},</div>
+<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {<span class="stringliteral">"net"</span>, <a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>},</div>
+<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  {<span class="stringliteral">"user"</span>, <a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>},</div>
+<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {<span class="stringliteral">"pid"</span>, <a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>},</div>
+<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  {<span class="stringliteral">"cgroup"</span>, <a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>}</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"> 116</span>  <a class="code" href="classOption.html">Option<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = nstypes.<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>(ns);</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>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classOption.html#a06eab791122ebc1f8af4ad310e5e7d7e">isNone</a>()) {</div>
+<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Unknown namespace '"</span> + ns + <span class="stringliteral">"'"</span>);</div>
+<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
+<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
+<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> nstype.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>();</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> </div>
-<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div>
-<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2"> 126</a></span> <span class="keyword">inline</span> std::set<std::string> <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()</div>
-<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div>
-<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  std::set<std::string> result;</div>
-<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="classTry.html">Try<std::list<std::string></a>> entries = <a class="code" href="namespaceos.html#a5effa5ea3568d8c18e5c66039702dfa0">os::ls</a>(<span class="stringliteral">"/proc/self/ns"</span>);</div>
-<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (entries.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div>
-<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& entry, entries.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div>
-<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// Introduced in Linux 4.12, pid_for_children is a handle for the PID</span></div>
-<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// namespace of child processes created by the current process.</span></div>
-<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (entry != <span class="stringliteral">"pid_for_children"</span>) {</div>
-<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  result.insert(entry);</div>
-<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div>
-<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
-<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
-<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> result;</div>
-<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div>
-<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </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> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div>
+<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2"> 127</a></span> <span class="keyword">inline</span> std::set<std::string> <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()</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>  std::set<std::string> result;</div>
+<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classTry.html">Try<std::list<std::string></a>> entries = <a class="code" href="namespaceos.html#a5effa5ea3568d8c18e5c66039702dfa0">os::ls</a>(<span class="stringliteral">"/proc/self/ns"</span>);</div>
+<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">if</span> (entries.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div>
+<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& entry, entries.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div>
+<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// Introduced in Linux 4.12, pid_for_children is a handle for the PID</span></div>
+<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// namespace of child processes created by the current process.</span></div>
+<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (entry != <span class="stringliteral">"pid_for_children"</span>) {</div>
+<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  result.insert(entry);</div>
+<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
+<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
+<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div>
+<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> result;</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> </div>
-<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div>
-<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="namespacens.html#ae308e5fb79986971a85717365f2258d4"> 144</a></span> <span class="keyword">inline</span> std::set<int> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a>()</div>
-<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> {</div>
-<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  std::set<int> result;</div>
-<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& ns, <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()) {</div>
-<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">type</a> = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(ns);</div>
-<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (type.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div>
-<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  result.insert(type.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
-<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div>
-<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div>
-<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> result;</div>
-<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> }</div>
-<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
+<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
+<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment">// Returns all the supported namespaces by the kernel.</span></div>
+<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="namespacens.html#ae308e5fb79986971a85717365f2258d4"> 145</a></span> <span class="keyword">inline</span> std::set<int> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a>()</div>
+<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> {</div>
+<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  std::set<int> result;</div>
+<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> std::string& ns, <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>()) {</div>
+<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">type</a> = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>(ns);</div>
+<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (type.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div>
+<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  result.insert(type.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
+<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div>
+<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
+<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span> result;</div>
+<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
-<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div>
-<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// path refers to one of the corresponding namespace entries in the</span></div>
-<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// /proc/[pid]/ns/ directory (or bind mounted elsewhere). We do not</span></div>
-<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// allow a process with multiple threads to call this function because</span></div>
-<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// it will lead to some weird situations where different threads of a</span></div>
-<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// process are in different namespaces.</span></div>
-<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83"> 163</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(</div>
-<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">const</span> std::string& path,</div>
-<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">const</span> std::string& ns,</div>
-<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">bool</span> checkMultithreaded = <span class="keyword">true</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">if</span> (checkMultithreaded) {</div>
-<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// Return error if there're multiple threads in the calling process.</span></div>
-<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespacecgroups.html#a9fb61299862484ab2d1bd382ea109ca9">threads</a> = <a class="code" href="namespaceproc.html#a15bf23098084d86bb1f2ac75b863ec24">proc::threads</a>(::getpid());</div>
-<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
-<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div>
-<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="stringliteral">"Failed to get the threads of the current process: "</span> +</div>
-<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  threads.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
-<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().size() > 1) {</div>
-<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Multiple threads exist in the current process"</span>);</div>
-<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
-<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
-<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
-<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) == 0) {</div>
-<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</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> </div>
-<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Currently, we don't support pid namespace as its semantics is</span></div>
-<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// different from other namespaces (instead of re-associating the</span></div>
-<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// calling thread, it re-associates the *children* of the calling</span></div>
-<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// thread with the specified namespace).</span></div>
-<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (ns == <span class="stringliteral">"pid"</span>) {</div>
-<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid namespace is not supported"</span>);</div>
-<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</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>  <a class="code" href="classTry.html">Try<int></a> fd = <a class="code" href="namespaceos.html#abbdbbbe902fd8dc271077d94b99994e7">os::open</a>(path, <a class="code" href="windows_2fcntl_8hpp.html#a7a68c9ffaac7dbcd652225dd7c06a54b">O_RDONLY</a> | <a class="code" href="windows_2fcntl_8hpp.html#ad6d8fbe4e494b4dbe051612572d3f757">O_CLOEXEC</a>);</div>
-<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
-<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span> (fd.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
-<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to open '"</span> + path + <span class="stringliteral">"': "</span> + fd.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
-<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
-<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div>
-<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">ns::nstype</a>(ns);</div>
-<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
-<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(nstype.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
-<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div>
-<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
-<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>(), nstype.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) == -1) {</div>
-<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">// Save the errno as it might be overwritten by 'os::close' below.</span></div>
-<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div>
-<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
-<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div>
-<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</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>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
-<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div>
-<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> }</div>
-<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
+<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
+<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div>
+<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// path refers to one of the corresponding namespace entries in the</span></div>
+<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// /proc/[pid]/ns/ directory (or bind mounted elsewhere). We do not</span></div>
+<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// allow a process with multiple threads to call this function because</span></div>
+<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// it will lead to some weird situations where different threads of a</span></div>
+<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// process are in different namespaces.</span></div>
+<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83"> 164</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(</div>
+<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">const</span> std::string& path,</div>
+<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> std::string& ns,</div>
+<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">bool</span> checkMultithreaded = <span class="keyword">true</span>)</div>
+<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> {</div>
+<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (checkMultithreaded) {</div>
+<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// Return error if there're multiple threads in the calling process.</span></div>
+<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="classTry.html">Try<std::set<pid_t></a>> <a class="code" href="namespacecgroups.html#a9fb61299862484ab2d1bd382ea109ca9">threads</a> = <a class="code" href="namespaceproc.html#a15bf23098084d86bb1f2ac75b863ec24">proc::threads</a>(::getpid());</div>
+<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div>
+<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="stringliteral">"Failed to get the threads of the current process: "</span> +</div>
+<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  threads.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
+<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (threads.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().size() > 1) {</div>
+<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Multiple threads exist in the current process"</span>);</div>
+<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
+<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div>
+<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
+<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) == 0) {</div>
+<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div>
+<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</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="comment">// Currently, we don't support pid namespace as its semantics is</span></div>
+<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// different from other namespaces (instead of re-associating the</span></div>
+<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// calling thread, it re-associates the *children* of the calling</span></div>
+<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="comment">// thread with the specified namespace).</span></div>
+<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (ns == <span class="stringliteral">"pid"</span>) {</div>
+<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid namespace is not supported"</span>);</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>  <a class="code" href="classTry.html">Try<int></a> fd = <a class="code" href="namespaceos.html#abbdbbbe902fd8dc271077d94b99994e7">os::open</a>(path, <a class="code" href="windows_2fcntl_8hpp.html#a7a68c9ffaac7dbcd652225dd7c06a54b">O_RDONLY</a> | <a class="code" href="windows_2fcntl_8hpp.html#ad6d8fbe4e494b4dbe051612572d3f757">O_CLOEXEC</a>);</div>
+<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
+<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">if</span> (fd.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to open '"</span> + path + <span class="stringliteral">"': "</span> + fd.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
+<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
+<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
+<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="classTry.html">Try<int></a> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> = <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">ns::nstype</a>(ns);</div>
+<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (nstype.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(nstype.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
+<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div>
+<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
+<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>(), nstype.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) == -1) {</div>
+<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// Save the errno as it might be overwritten by 'os::close' below.</span></div>
+<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div>
+<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
+<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</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> </div>
+<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="namespaceos.html#a8df77ec6d6b8d32d9b287a41bc74cfdc">os::close</a>(fd.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
+<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div>
+<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
-<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div>
-<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// pid specifies the process whose namespace we will associate.</span></div>
-<div class="line"><a name="l00217"></a><span class="lineno"><a class="line" href="namespacens.html#a7e58011de0d8219645c27912fc3bc8f4"> 217</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</div>
-<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> {</div>
-<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(pid)) {</div>
-<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid) + <span class="stringliteral">" does not exist"</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>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div>
-<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(path)) {</div>
-<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</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>  <span class="keywordflow">return</span> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">ns::setns</a>(path, ns);</div>
-<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> }</div>
-<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
+<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
+<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// Re-associate the calling process with the specified namespace. The</span></div>
+<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// pid specifies the process whose namespace we will associate.</span></div>
+<div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="namespacens.html#a7e58011de0d8219645c27912fc3bc8f4"> 218</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">setns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</div>
+<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> {</div>
+<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(pid)) {</div>
+<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid) + <span class="stringliteral">" does not exist"</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> </div>
+<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div>
+<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(path)) {</div>
+<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</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="keywordflow">return</span> <a class="code" href="namespacens.html#aff4db8d452eb5c8f07fba2ceeb5a7d83">ns::setns</a>(path, ns);</div>
+<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> }</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> <span class="comment">// Get the inode number of the specified namespace for the specified</span></div>
-<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// pid. The inode number identifies the namespace and can be used for</span></div>
-<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// comparisons, i.e., two processes with the same inode for a given</span></div>
-<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// namespace type are in the same namespace.</span></div>
-<div class="line"><a name="l00236"></a><span class="lineno"><a class="line" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328"> 236</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<ino_t></a> <a class="code" href="namespacens.html#a0f104f8776ccb934a05efeaeeebab328">getns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</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>  <span class="keywordflow">if</span> (!<a class="code" href="namespaceos.html#a69b3969276ffa4cb698b9431ee43bd7c">os::exists</a>(pid)) {</div>
-<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid) + <span class="stringliteral">" does not exist"</span>);</div>
-<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
-<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
-<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) < 1) {</div>
-<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div>
-<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
-<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
-<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div>
-<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">struct </span><a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a> s;</div>
-<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a>(path.c_str(), &s) < 0) {</div>
-<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to stat "</span> + ns + <span class="stringliteral">" namespace handle"</span></div>
-<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="stringliteral">" for pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid));</div>
-<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</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>  <span class="keywordflow">return</span> s.st_ino;</div>
-<div class="line"><a name="l00254"></a><span class="lineno"> 254</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> </div>
+<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
+<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// Get the inode number of the specified namespace for the specified</span></div>
+<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// pid. The inode number identifies the namespace and can be used for</span></div>
+<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// comparisons, i.e., two processes with the same inode for a given</span></div>
+<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// namespace type are in the same namespace.</span></div>
+<div class="line"><a name="l00237"></a><span class="lineno"><a class="line" href="namespacens.html#af7062fcbd23b06620cb66f129985658e"> 237</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<ino_t></a> <a class="code" href="namespacens.html#af7062fcbd23b06620cb66f129985658e">getns</a>(<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> pid, <span class="keyword">const</span> std::string& ns)</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="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">ns::namespaces</a>().count(ns) < 1) {</div>
+<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Namespace '"</span> + ns + <span class="stringliteral">"' is not supported"</span>);</div>
+<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div>
+<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
+<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  std::string path = <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid), <span class="stringliteral">"ns"</span>, ns);</div>
+<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">struct </span><a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a> s;</div>
+<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (::<a class="code" href="namespacecgroups.html#a78e3c7ca2e422779908eec45f859d757">stat</a>(path.c_str(), &s) < 0) {</div>
+<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span> (errno == ENOENT) {</div>
+<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Process is gone.</span></div>
+<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div>
+<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  } <span class="keywordflow">else</span> {</div>
+<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to stat "</span> + ns + <span class="stringliteral">" namespace handle"</span></div>
+<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="stringliteral">" for pid "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(pid));</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> </div>
+<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> s.st_ino;</div>
+<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div>
-<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="namespacens.html#a98bf4d9e11d546326250997a6493f835"> 296</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<pid_t></a> <a class="code" href="namespacens.html#a98bf4d9e11d546326250997a6493f835">clone</a>(</div>
-<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> target,</div>
-<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordtype">int</span> <a class="code" href="namespacens.html#ae308e5fb79986971a85717365f2258d4">nstypes</a>,</div>
-<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">int</span>()>& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>,</div>
-<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordtype">int</span> <a class="code" href="decoder_8hpp.html#abb0829cce9dd20a40ae0d86890ae85c6">flags</a>)</div>
-<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> {</div>
-<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// NOTE: the order in which we 'setns' is significant, so we use an</span></div>
-<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// array here rather than something like a map.</span></div>
-<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="comment">// The user namespace needs to be entered first if we need to</span></div>
-<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// increase the privilege and last if we want to decrease the</span></div>
-<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// privilege. Said another way, entering the user namespace first</span></div>
-<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// gives an unprivileged user the potential to enter the other</span></div>
-<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// namespaces.</span></div>
-<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> NAMESPACES = 7;</div>
-<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keyword">struct</span></div>
-<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  {</div>
-<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordtype">int</span> <a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a>;</div>
-<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  std::string <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>;</div>
-<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  } <a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[NAMESPACES] = {</div>
-<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  {<a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>, <span class="stringliteral">"user"</span>},</div>
-<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  {<a class="code" href="ns_8hpp.html#a9d5d88148a26086567c3731e2e5e110a">CLONE_NEWCGROUP</a>, <span class="stringliteral">"cgroup"</span>},</div>
-<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  {<a class="code" href="ns_8hpp.html#a1f702bf1b80ed7a8cef30e363a87e3e3">CLONE_NEWIPC</a>, <span class="stringliteral">"ipc"</span>},</div>
-<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  {<a class="code" href="ns_8hpp.html#afaf1addd4b1e90196d1876896c1a53c3">CLONE_NEWUTS</a>, <span class="stringliteral">"uts"</span>},</div>
-<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  {<a class="code" href="ns_8hpp.html#a2ba1673aa7423b46a7bcfa8f68cd2bce">CLONE_NEWNET</a>, <span class="stringliteral">"net"</span>},</div>
-<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  {<a class="code" href="ns_8hpp.html#a2fa6801173606dd3492ca9061d1c4ad4">CLONE_NEWPID</a>, <span class="stringliteral">"pid"</span>},</div>
-<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  {<a class="code" href="ns_8hpp.html#aab02ccd05c3d9fa806d974e38a8debc4">CLONE_NEWNS</a>, <span class="stringliteral">"mnt"</span>}</div>
-<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  };</div>
-<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div>
-<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// Support for user namespaces in all filesystems is incomplete</span></div>
-<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// until version 3.12 (see 'Availability' in man page of</span></div>
-<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// 'user_namespaces'), so for now we don't support entering them.</span></div>
-<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">//</span></div>
-<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// TODO(benh): Support user namespaces if the current system can</span></div>
-<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// support it, e.g., check the kernel version number or try and do a</span></div>
-<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// clone with CLONE_NEWUSER to see if it works. NOTE: before we can</span></div>
-<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// fully support user namespaces, however, we must take care to</span></div>
-<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// either enter the user namespace first or last. We'll want to</span></div>
-<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">// enter it first if we need to increase the privilege and last if</span></div>
-<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">// we want to decrease the privilege. Currently nsenter.c from</span></div>
-<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// utils-linux does this via doing two passes to make sure we either</span></div>
-<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// enter first or last. We'll need to do something similar here once</span></div>
-<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// we support user namespaces as well.</span></div>
-<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (nstypes & <a class="code" href="ns_8hpp.html#a5d697cae6f0156524a1bd7d77bcf8e87">CLONE_NEWUSER</a>) {</div>
-<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"User namespaces are not supported"</span>);</div>
-<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
-<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div>
-<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">// File descriptors keyed by the (parent) namespace we are entering.</span></div>
-<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="classhashmap.html">hashmap<int, int></a> fds = {};</div>
-<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div>
-<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">// Helper for closing a list of file descriptors.</span></div>
-<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keyword">auto</span> close = [](<span class="keyword">const</span> std::list<int>& fds) {</div>
-<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">foreach</span> (<span class="keywordtype">int</span> fd, fds) {</div>
-<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  ::close(fd); <span class="comment">// Need to call the async-signal safe version.</span></div>
-<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div>
-<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  };</div>
-<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
-<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// NOTE: we do all of this ahead of time so we can be async signal</span></div>
-<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">// safe after calling fork below.</span></div>
-<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < NAMESPACES; i++) {</div>
-<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// Only open the namespace file descriptor if it's been requested.</span></div>
-<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacens.html#aab01ae26d9da2efc741aa838c69db6e2">namespaces</a>[i].<a class="code" href="namespacens.html#a1c4fd4fd04bde294d2d7477dfee8427e">nstype</a> & nstypes) {</div>
-<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  std::string path =</div>
-<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <a class="code" href="namespacepath.html#aa86b16a2171cec90bb3337930513ef0f">path::join</a>(<span class="stringliteral">"/proc"</span>, <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(target), <span class="stringliter
<TRUNCATED>