http://git-wip-us.apache.org/repos/asf/mesos-site/blob/4aba3b68/content/api/latest/c++/queueing_2internal_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/queueing_2internal_8hpp_source.html b/content/api/latest/c++/queueing_2internal_8hpp_source.html index ddce55c..76f539b 100644 --- a/content/api/latest/c++/queueing_2internal_8hpp_source.html +++ b/content/api/latest/c++/queueing_2internal_8hpp_source.html @@ -52,7 +52,7 @@ <div class="title">internal.hpp</div> </div> </div><!--header--> <div class="contents"> -<a href="queueing_2internal_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 to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></ a><span class="lineno"> 6</span> <span class="comment">// "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">/ / distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __LINUX_ROUTING_QUEUEING_INTERNAL_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define __LINUX_ROUTING_QUEUEING_INT ERNAL_HPP__</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <netlink/cache.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <netlink/errno.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <netlink/object.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <netlink/socket.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <netlink/route/link.h></span></div><div class="line"><a name="l00026"></a><span cla ss="lineno"> 26</span> <span class="preprocessor">#include <netlink/route/qdisc.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <netlink/route/tc.h></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 <string></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="pr eprocessor">#include <<a class="code" href="foreach_8hpp.html">stout/foreach.hpp</a>></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="none_8hpp.html">stout/none.hpp</a>></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="nothing_8hpp.html">stout/nothing.hpp</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.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="preprocessor">#include "<a class="code" href="handle_8hpp.html">linux/routing/handle.hpp</a>"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="internal_8hpp.html">linux/routing/internal.hpp</a>"</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="preprocessor">#include "<a class="code" href="link_2internal_8hpp.html">linux/routing/link/internal.hpp</a>"</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="discipline_8hpp.html">linux/routing/queueing/discipline.hpp</a>"</span></div><d iv class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "<a class="code" href="src_2linux_2routing_2queueing_2statistics_8hpp.html">linux/routing/queueing/statistics.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="keyword">namespace </span><a class="code" href="namespacerouting.html">routing</a> {</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="keyword">template</span> <></div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="namespacerouting.html#a45c8542f817736d39bfe9c782ca54c74"> 50</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespac erouting.html#a728e253aba8e42f601752ddc771e9902">cleanup</a>(<span class="keyword">struct</span> rtnl_qdisc* qdisc)</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>  rtnl_qdisc_put(qdisc);</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> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">namespace </span>queueing {</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html"> 56</a></span> <span class="keyword">namespace </span><a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00059"></a><s pan class="lineno"> 59</span> <span class="comment">// Helpers for {en}decoding.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// Forward declaration. Each type of queueing discipline needs to</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// implement this function to encode its type specific configurations</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// into the libnl queueing discipline (rtnl_qdisc).</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <a class ="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad9cf687c1486b960e8dd9b96e1f84644">encode</a>(</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc,</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> Config& config);</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> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// Forward declaration. Each type of queueing discipline needs to</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// implement this function to decode its type specific configurations</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">// from the libnl queueing discipline (rtnl_qdisc). Returns None if</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">// the libnl queueing discipline does not match the specified queueing</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// discipline type.</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <a class="code" href="classResult.html">Result<Config></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9692817d57aa1e0599afef0fd7e17ee7">decode</a>(<s pan class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </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="comment">// Encodes a queueing discipline (in our representation) to a libnl</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// queueing discipline (rtnl_qdisc). We use template here so that it</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// works for any type of queueing discipline.</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></ div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#afb17c5030aa53c7371526308d0a8b71e"> 84</a></span> <a class="code" href="classTry.html">Try<Netlink<struct rtnl_qdisc></a>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#afb17c5030aa53c7371526308d0a8b71e">encodeDiscipline</a>(</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link,</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">const</span> <a class="code" href="structrouting_1_1queueing_1_1Discipline.html">Discipline<Config></a>& discipline)</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="keyword">struct </span>rtnl_qdisc* q = rtnl_qdisc_alloc();</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> (q == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to allocate a libnl qdisc"</span>);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</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>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a> qdisc(q);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name=" l00095"></a><span class="lineno"> 95</span>  rtnl_tc_set_link(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), link.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>());</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  rtnl_tc_set_parent(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#a51acd08c88f4883eb14c2c86d09e2fdc">parent</a>.get());</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>  <span class="keywordflow">if</span> (discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#aedc58e6c754299543ef88d2a0d1241a2">handle</a>.isSome()) {</div><div class="line" ><a name="l00099"></a><span class="lineno"> 99</span>  >rtnl_tc_set_handle(TC_CAST(qdisc.<a class="code" >href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), > discipline.<a class="code" >href="structrouting_1_1queueing_1_1Discipline.html#aedc58e6c754299543ef88d2a0d1241a2">handle</a>.get().get());</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="keywordtype">int</span> <a >class="code" >href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> > = rtnl_tc_set_kind(TC_CAST(qdisc.<a class="code" >href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), > discipline.<a class="code" >href="structrouting_1_1queueing_1_1Discipline.html#a56a06799a1259a219eefface9834a3a3">kin d</a>.c_str());</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="stringliteral">"Failed to set the kind of the queueing discipline: "</span> +</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  std::string(nl_geterror(error)));</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</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>  <span class="comment">// Perform queue discipline specific encoding.</span></div><div class="li ne"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="classTry.html">Try<Nothing></a> encoding = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad9cf687c1486b960e8dd9b96e1f84644">encode</a>(qdisc, discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#a5c91c093e21425cce3552ddfbaf8842c">config</a>);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (encoding.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="stringliteral">"Failed to encode the queueing discipline: "</span> +</div><div class="line"><a name="l0 0114"></a><span class="lineno"> 114</span>  encoding.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> qdisc;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// Helpers for internal APIs.</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// Returns all the libnl queue discipline (rtnl_qdisc) on the link.</span></div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6"> 125</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::vector<Netlink<struct rtnl_qdisc></a>>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6">getQdiscs</a>(</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link)</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>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// Dump all the queueing discipline from kernel.</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_qdisc_alloc_cache(socket.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>().get(), &c);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="stringliteral">"Failed to g et queueing discipline info from kernel: "</span> +</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  std::string(nl_geterror(error)));</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="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</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>  std::vector<Netlink<struct rtnl_qdisc>> results;</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>  <span class="keywordflow">for</span> (<span class="keyword">str uct</span> nl_object* o = nl_cache_get_first(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>());</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  o != <span class="keyword">nullptr</span>; o = nl_cache_get_next(o)) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (rtnl_tc_get_ifindex(TC_CAST(o)) == rtnl_link_get_ifindex(link.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// NOTE: We increment the reference counter here because 'cache'</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// will be freed when this function finishes and we want this</span></div><div class="line"><a name ="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// object's life to be longer than this function.</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  nl_object_get(o);</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>  results.push_back(<a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>((<span class="keyword">struct</span> rtnl_qdisc*) o));</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> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> results;</div><div class="li ne"><a name="l00159"></a><span class="lineno"> 159</span> }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// Returns the libnl queueing discipline (rtnl_qdisc) attached to the</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// given parent that matches the specified queueing discipline kind on</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// the link. Return None if no match has been found.</span></div><div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6"> 165</a></span> <span class="keyword">inline</span> <a clas s="code" href="classResult.html">Result<Netlink<struct rtnl_qdisc></a>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6">getQdisc</a>(</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link,</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Handle.html">Handle</a>& parent,</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>)</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>  <a class="code" href="classTry.html">Try<std::vector<Netlink<struct rtnl_qdisc></a>>> qdiscs = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6">getQdiscs</a>(link);</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (qdiscs.<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>(qdiscs.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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> </div><div class="line"><a name="l00175"></a><span class="lineno"> 175</spa n>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc, qdiscs.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>()) {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (rtnl_tc_get_parent(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) == parent.<a class="code" href="classrouting_1_1Handle.html#aaaf5d48afa385557421c29db03c27caf">get</a>() &&</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  rtnl_tc_get_kind(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) == <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>) {</div><div class="line">< a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> qdisc;</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> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</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="l00186"></a><span class="lineno"> 186</span> <span class="comment">// Internal queueing APIs.</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"></span></div><div class="line"><a na me="l00189"></a><span class="lineno"> 189</span> <span class="comment">// Returns true if there exists a queueing discipline attached to the</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// given parent that matches the specified queueing discipline kind on</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">// the link.</span></div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#ae4c92fe8ba27934ad08e2d1307f0dc8a"> 192</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<bool></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ae4c92fe8ba27934ad08e2d1307f0dc8a">exists</a>(</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">const</span> std::string& ; _link,</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Handle.html">Handle</a>& parent,</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</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>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <a class="code" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738">link::internal::get</a>(_link);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classRe sult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <span class="keyword">false</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> </div><div class="line"><a name="l00204"></a><span class="lineno"> 204</spa n>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_qdisc></a>> qdisc = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6">getQdisc</a>(link.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), parent, <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (qdisc.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(qdisc.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  } </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>  <span class="keywordflow">return</span> qdisc.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>();</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> </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> <span class="comment">// Creates a new queueing discipline on the link. Returns false if a</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// queueing discipline attached to the same parent with the same</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  ;<span class="comment">// configuration already exists on the link. We use template here so</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// that it works for any type of queueing discipline.</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></div><div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#ad758dd14190e35694010d8975d39e24c"> 218</a></span> <a class="code" href="classTry.html">Try<bool></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad758dd14190e35694010d8975d39e24c">create</a>(</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">const</span> std::string& _link,</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">const</span> <a class="code" href="structrouting_1_1queueing_1_1Discipline.html">Discipline<Config></a>& discipline)</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>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <a class="code" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738">link::internal::get</a>(_link);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code " href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</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">"Link '"</span> + _link + <span class="stringliteral">"' is not found"</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>  <a class="code" href="classTry.html">Try<Netlink<struct rtnl_qdisc></a>> qdisc =</div> <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#afb17c5030aa53c7371526308d0a8b71e">encodeDiscipline</a>(link.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), discipline);</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="keywordflow">if</span> (qdisc.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to encode the queueing discipline: "</span> + qdisc.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a nam e="l00234"></a><span class="lineno"> 234</span>  }</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (socket.isError()) {</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.error());</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</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>  <span class="comment">// The flag NLM_F_EXCL tells libnl that if the qdisc already exists,</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="comment">// this function should return error.</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_qdisc_add(</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  socket.get().get(),</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  qdisc.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>().get(),</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  NLM_F_ CREATE | NLM_F_EXCL);</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (error == -NLE_EXIST) {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="stringliteral">"Failed to add a queueing discipline to the link: &qu ot;</span> +</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  std::string(nl_geterror(error)));</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="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> }</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment">// Removes the specified discipline attached to the given parent that</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span clas s="comment">// matches the specified queueing discipline kind on the link. Return</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment">// false if such a queueing discipline is not found.</span></div><div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#a60c7d5300f6e8980ebb1fff3c2ebcb2d"> 264</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<bool></a> <span class="keyword">remove</span>(</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">const</span> std::string& _link,</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Handle.html">Handle</a>& parent,</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> 60; <span class="keyword">const</span> std::string& <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>)</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> {</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <a class="code" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738">link::internal::get</a>(_link);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResult.html#a521 adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_qdisc></a>> qdisc = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6">getQdisc</a>(link.<a class="code" href="classResult.html#aedf79f3b14dcda57 91b84a64ada4d412">get</a>(), parent, <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>);</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">if</span> (qdisc.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(qdisc.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (qdisc.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">r eturn</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_qdisc_delete(socket.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>().get(), qdisc.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>().get());</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// TODO(jieyu): Interpret the error code and return fa lse if it</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// indicates that the queueing discipline is not found.</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(std::string(nl_geterror(error)));</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> }</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div clas s="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment">// Returns the set of common Traffic Control statistics for the</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment">// queueing discipline on the link, None() if the link or qdisc does</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment">// not exist or an error if we cannot cannot determine the result.</span></div><div class="line"><a name="l00302"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#a91cfc1e150fcd66e41ce327b7e1908de"> 302</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<hashmap<std::string, uint64_t></a>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a91cfc1e150fcd66e41ce327b7e1908de">statistics</a>(</div><div class="line"><a name="l00 303"></a><span class="lineno"> 303</span>  <span class="keyword">const</span> std::string& _link,</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Handle.html">Handle</a>& parent,</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>)</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> {</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_link></a>> link = <a class="code" href="namespacerouting_1_1link_1_1internal.html#a01998838b3ff4f3123f42927f7f54738">link::internal::get</a>(_link);</div><div class="line"><a name="l00308"></a><span clas s="lineno"> 308</span>  <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(link.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (link.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</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> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="classResult.html">Result<Netlink<struct rtnl_qdisc></a>> qdisc = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6">getQdisc</a>(link.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), parent, <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>);</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span> (qdisc.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(qdisc.<a class="code" href="classResult.html#a521adf96f5c27d26d 6b1d580aae8aaee">error</a>());</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (qdisc.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <a class="code" href="classhashmap.html">hashmap<std::string, uint64_t></a> results;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordtype">char</span> <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b11 46ad49a8651c0a457ce46">name</a>[32];</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>  <span class="comment">// NOTE: We use '<=' here because RTNL_TC_STATS_MAX is set to be the</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// value of the last enum entry.</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i <= static_cast<size_t>(RTNL_TC_STATS_MAX); i++) {</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">if</span> (rtnl_tc_stat2str(static_cast<rtnl_tc_stat>(i), name, <span class="keyword">sizeof</span>(name))) {</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</spa n>  results[<a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>] = rtnl_tc_get_stat(</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  TC_CAST(qdisc.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>().get()),</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  static_cast<rtnl_tc_stat>(i));</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  }</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  }</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span> results;</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> }</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div><div class="line"><a name="l00336"></a><span clas s="lineno"> 336</span> } <span class="comment">// namespace internal {</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> } <span class="comment">// namespace queueing {</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> } <span class="comment">// namespace routing {</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="preprocessor">#endif // __LINUX_ROUTING_QUEUEING_INTERNAL_HPP__</span></div><div class="ttc" id="structrouting_1_1queueing_1_1Discipline_html_a56a06799a1259a219eefface9834a3a3"><div class="ttname"><a href="structrouting_1_1queueing_1_1Discipline.html#a56a06799a1259a219eefface9834a3a3">routing::queueing::Discipline::kind</a></div><div class="ttdeci">std::string kind</div><div class="ttdef"><b>Definition:</b> discipline.hpp:42</div></div> +<a href="queueing_2internal_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 to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></ a><span class="lineno"> 6</span> <span class="comment">// "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">/ / distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef __LINUX_ROUTING_QUEUEING_INTERNAL_HPP__</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#define __LINUX_ROUTING_QUEUEING_INT ERNAL_HPP__</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <netlink/cache.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <netlink/errno.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <netlink/object.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <netlink/socket.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <netlink/route/link.h></span></div><div class="line"><a name="l00026"></a><span cla ss="lineno"> 26</span> <span class="preprocessor">#include <netlink/route/qdisc.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <netlink/route/tc.h></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 <string></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="pr eprocessor">#include <<a class="code" href="foreach_8hpp.html">stout/foreach.hpp</a>></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="none_8hpp.html">stout/none.hpp</a>></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="nothing_8hpp.html">stout/nothing.hpp</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.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="preprocessor">#include "<a class="code" href="handle_8hpp.html">linux/routing/handle.hpp</a>"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="internal_8hpp.html">linux/routing/internal.hpp</a>"</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="preprocessor">#include "<a class="code" href="link_2internal_8hpp.html">linux/routing/link/internal.hpp</a>"</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="discipline_8hpp.html">linux/routing/queueing/discipline.hpp</a>"</span></div><d iv class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "<a class="code" href="src_2linux_2routing_2queueing_2statistics_8hpp.html">linux/routing/queueing/statistics.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="keyword">namespace </span><a class="code" href="namespacerouting.html">routing</a> {</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="keyword">template</span> <></div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="namespacerouting.html#a45c8542f817736d39bfe9c782ca54c74"> 50</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespac erouting.html#a728e253aba8e42f601752ddc771e9902">cleanup</a>(<span class="keyword">struct</span> rtnl_qdisc* qdisc)</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>  rtnl_qdisc_put(qdisc);</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> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">namespace </span>queueing {</div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html"> 56</a></span> <span class="keyword">namespace </span><a class="code" href="namespaceinternal.html">internal</a> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00059"></a><s pan class="lineno"> 59</span> <span class="comment">// Helpers for {en}decoding.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// Forward declaration. Each type of queueing discipline needs to</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// implement this function to encode its type specific configurations</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// into the libnl queueing discipline (rtnl_qdisc).</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <a class ="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad9cf687c1486b960e8dd9b96e1f84644">encode</a>(</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc,</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> Config& config);</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> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// Forward declaration. Each type of queueing discipline needs to</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// implement this function to decode its type specific configurations</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">// from the libnl queueing discipline (rtnl_qdisc). Returns None if</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">// the libnl queueing discipline does not match the specified queueing</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// discipline type.</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <a class="code" href="classResult.html">Result<Config></a> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9692817d57aa1e0599afef0fd7e17ee7">decode</a>(<s pan class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </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="comment">// Encodes a queueing discipline (in our representation) to a libnl</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// queueing discipline (rtnl_qdisc). We use template here so that it</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// works for any type of queueing discipline.</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Config></ div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#afb17c5030aa53c7371526308d0a8b71e"> 84</a></span> <a class="code" href="classTry.html">Try<Netlink<struct rtnl_qdisc></a>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#afb17c5030aa53c7371526308d0a8b71e">encodeDiscipline</a>(</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link,</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">const</span> <a class="code" href="structrouting_1_1queueing_1_1Discipline.html">Discipline<Config></a>& discipline)</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="keyword">struct </span>rtnl_qdisc* q = rtnl_qdisc_alloc();</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> (q == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to allocate a libnl qdisc"</span>);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</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>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a> qdisc(q);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name=" l00095"></a><span class="lineno"> 95</span>  rtnl_tc_set_link(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), link.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>());</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  rtnl_tc_set_parent(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#a51acd08c88f4883eb14c2c86d09e2fdc">parent</a>.get());</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>  <span class="keywordflow">if</span> (discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#aedc58e6c754299543ef88d2a0d1241a2">handle</a>.isSome()) {</div><div class="line" ><a name="l00099"></a><span class="lineno"> 99</span>  >rtnl_tc_set_handle(TC_CAST(qdisc.<a class="code" >href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), > discipline.<a class="code" >href="structrouting_1_1queueing_1_1Discipline.html#aedc58e6c754299543ef88d2a0d1241a2">handle</a>->get());</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="keywordtype">int</span> <a >class="code" >href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> > = rtnl_tc_set_kind(TC_CAST(qdisc.<a class="code" >href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>()), > discipline.<a class="code" >href="structrouting_1_1queueing_1_1Discipline.html#a56a06799a1259a219eefface9834a3a3">kind< /a>.c_str());</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="stringliteral">"Failed to set the kind of the queueing discipline: "</span> +</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  std::string(nl_geterror(error)));</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</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>  <span class="comment">// Perform queue discipline specific encoding.</span></div><div class="line "><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="classTry.html">Try<Nothing></a> encoding = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad9cf687c1486b960e8dd9b96e1f84644">encode</a>(qdisc, discipline.<a class="code" href="structrouting_1_1queueing_1_1Discipline.html#a5c91c093e21425cce3552ddfbaf8842c">config</a>);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (encoding.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="stringliteral">"Failed to encode the queueing discipline: "</span> +</div><div class="line"><a name="l001 14"></a><span class="lineno"> 114</span>  encoding.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> qdisc;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// Helpers for internal APIs.</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// Returns all t he libnl queue discipline (rtnl_qdisc) on the link.</span></div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6"> 125</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::vector<Netlink<struct rtnl_qdisc></a>>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6">getQdiscs</a>(</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link)</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>  <a class="code" href="classTry.html">Try<Netlink<struct nl_sock></a>> <a class="code" h ref="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">socket</a> = <a class="code" href="namespacerouting.html#aee51d4e36a57bab7d6ada56e15467370">routing::socket</a>();</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (socket.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(socket.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// Dump all the queueing discipline from kernel.</span></ div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">struct </span>nl_cache* c = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = rtnl_qdisc_alloc_cache(socket-><a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>(), &c);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (error != 0) {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="stringliteral">"Failed to get q ueueing discipline info from kernel: "</span> +</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  std::string(nl_geterror(error)));</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="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct nl_cache></a> cache(c);</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>  std::vector<Netlink<struct rtnl_qdisc>> results;</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>  <span class="keywordflow">for</span> (<span class="keyword">struct< /span> nl_object* o = nl_cache_get_first(cache.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>());</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  o != <span class="keyword">nullptr</span>; o = nl_cache_get_next(o)) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (rtnl_tc_get_ifindex(TC_CAST(o)) == rtnl_link_get_ifindex(link.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// NOTE: We increment the reference counter here because 'cache'</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// will be freed when this function finishes and we want this</span></div><div class="line"><a name="l0 0151"></a><span class="lineno"> 151</span>  <span class="comment">// object's life to be longer than this function.</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  nl_object_get(o);</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>  results.push_back(<a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>((<span class="keyword">struct</span> rtnl_qdisc*) o));</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> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> results;</div><div class="line"> <a name="l00159"></a><span class="lineno"> 159</span> }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// Returns the libnl queueing discipline (rtnl_qdisc) attached to the</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// given parent that matches the specified queueing discipline kind on</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// the link. Return None if no match has been found.</span></div><div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6"> 165</a></span> <span class="keyword">inline</span> <a class="c ode" href="classResult.html">Result<Netlink<struct rtnl_qdisc></a>> <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#a9fca028c36468bfe3679281194691ef6">getQdisc</a>(</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_link></a>& link,</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> <a class="code" href="classrouting_1_1Handle.html">Handle</a>& parent,</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>)</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> {</div><div class="line"><a name="l00170"></a><span class="lin eno"> 170</span>  <a class="code" href="classTry.html">Try<std::vector<Netlink<struct rtnl_qdisc></a>>> qdiscs = <a class="code" href="namespacerouting_1_1queueing_1_1internal.html#ad552fd699ab2997095176f451ec82cb6">getQdiscs</a>(link);</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (qdiscs.<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>(qdiscs.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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> </div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&# 160; <span class="keywordflow">foreach</span> (<span class="keyword">const</span> <a class="code" href="classrouting_1_1Netlink.html">Netlink<struct rtnl_qdisc></a>& qdisc, qdiscs.<a class="code" href="classTry.html#a8bc7f43e75a47111ea18e9c83b007be5">get</a>()) {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (rtnl_tc_get_parent(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) == parent.<a class="code" href="classrouting_1_1Handle.html#aaaf5d48afa385557421c29db03c27caf">get</a>() &&</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  rtnl_tc_get_kind(TC_CAST(qdisc.<a class="code" href="classrouting_1_1Netlink.html#aed276efbe5490b33b471783504b5f89e">get</a>())) == <a class="code" href="namespacemesos_1_1modules.html#a70163bdea2fe39ef5b798a7d7ee0c220">kind</a>) {</div><div class="line"><a na me="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> qdisc;</div><div class="line"><a name="l00179"></a><span class="lineno">
<TRUNCATED>
