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Posted to commits@mesos.apache.org by gi...@apache.org on 2017/12/08 05:07:41 UTC
[04/26] mesos-site git commit: Updated the website built from mesos
SHA: 8844591.
http://git-wip-us.apache.org/repos/asf/mesos-site/blob/775721bf/content/api/latest/c++/status__update__manager__process_8hpp_source.html
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+<div id="nav-path" class="navpath">
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+<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_87434d5d184cee007995c14578f95cc4.html">status_update_manager</a></li> </ul>
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+<div class="title">status_update_manager_process.hpp</div> </div>
+</div><!--header-->
+<div class="contents">
+<a href="status__update__manager__process_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 __STATUS_UPDATE_MANAGER_PROCESS_HPP__</span></div>
+<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span><span class="preprocessor">#define __STATUS_UPDATE_MANAGER_PROCESS_HPP__</span></div>
+<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor"></span></div>
+<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <list></span></div>
+<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <queue></span></div>
+<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <string></span></div>
+<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <utility></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 <<a class="code" href="include_2mesos_2mesos_8hpp.html">mesos/mesos.hpp</a>></span></div>
+<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <<a class="code" href="type__utils_8hpp.html">mesos/type_utils.hpp</a>></span></div>
+<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
+<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="delay_8hpp.html">process/delay.hpp</a>></span></div>
+<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="future_8hpp.html">process/future.hpp</a>></span></div>
+<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="owned_8hpp.html">process/owned.hpp</a>></span></div>
+<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2libprocess_2include_2process_2protobuf_8hpp.html">process/protobuf.hpp</a>></span></div>
+<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="timeout_8hpp.html">process/timeout.hpp</a>></span></div>
+<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
+<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="hashmap_8hpp.html">stout/hashmap.hpp</a>></span></div>
+<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="hashset_8hpp.html">stout/hashset.hpp</a>></span></div>
+<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="duration_8hpp.html">stout/duration.hpp</a>></span></div>
+<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div>
+<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div>
+<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="3rdparty_2stout_2include_2stout_2protobuf_8hpp.html">stout/protobuf.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="try_8hpp.html">stout/try.hpp</a>></span></div>
+<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2utils_8hpp.html">stout/utils.hpp</a>></span></div>
+<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include <<a class="code" href="uuid_8hpp.html">stout/uuid.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="protobuf__utils_8hpp.html">common/protobuf_utils.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="src_2slave_2constants_8hpp.html">slave/constants.hpp</a>"</span></div>
+<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
+<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">namespace </span>mesos {</div>
+<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">namespace </span>internal {</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="comment">// `StatusUpdateManagerProcess` is responsible for</span></div>
+<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">//</span></div>
+<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// 1) Reliably sending status updates.</span></div>
+<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// 2) Checkpointing updates to disk (optional).</span></div>
+<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// 3) Receiving ACKs.</span></div>
+<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// 4) Recovering checkpointed status updates after failover.</span></div>
+<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment">//</span></div>
+<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// It takes the following template parameters:</span></div>
+<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// - `IDType` the type of the objects used to identify the managed streams.</span></div>
+<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// - `CheckpointType` the type of the protobuf message written to checkpoint</span></div>
+<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// the streams.</span></div>
+<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// - `UpdateType` the type of the status updates that will be managed.</span></div>
+<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">//</span></div>
+<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// NOTE: Unless first paused, this actor will forward updates as soon as</span></div>
+<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// possible; for example, during recovery or as soon as the first status update</span></div>
+<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// is processed.</span></div>
+<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">//</span></div>
+<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// This process does NOT garbage collect any checkpointed state. The users of it</span></div>
+<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// are responsible for the garbage collection of the status updates files.</span></div>
+<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">//</span></div>
+<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">// TODO(gkleiman): make `TaskStatusUpdateManager` use this actor (MESOS-8296).</span></div>
+<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IDType, <span class="keyword">typename</span> Checkpo<span class="keywordtype">int</span>Type, <span class="keyword">typename</span> UpdateType></div>
+<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html"> 76</a></span> <span class="keyword">class </span><a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html">StatusUpdateManagerProcess</a></div>
+<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  : <span class="keyword">public</span> <a class="code" href="classProtobufProcess.html">ProtobufProcess</a><</div>
+<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  StatusUpdateManagerProcess<IDType, CheckpointType, UpdateType>></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="keyword">public</span>:</div>
+<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// This struct contains a map from stream ID to the stream state</span></div>
+<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// recovered for the status updates file.</span></div>
+<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// The stream state will be `None` if:</span></div>
+<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// * The status updates file didn't exist.</span></div>
+<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// * The status updates file was empty.</span></div>
+<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// The stream state contains all the status updates (both acknowledged and</span></div>
+<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// pending) added to the stream.</span></div>
+<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// This struct also contains a count of the recoverable errors found during</span></div>
+<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// non-strict recovery.</span></div>
+<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html"> 94</a></span>  <span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html">State</a></div>
+<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  {</div>
+<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html"> 96</a></span>  <span class="keyword">struct </span><a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html">StreamState</a></div>
+<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div>
+<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a2d8368f778d37b116eb6308e171570f0"> 98</a></span>  std::list<UpdateType> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a2d8368f778d37b116eb6308e171570f0">updates</a>;</div>
+<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a156394001b71a453a74d7af4d686d2ab"> 99</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a156394001b71a453a74d7af4d686d2ab">terminated</a>;</div>
+<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div>
+<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#af46361932dd0c00fb873b16659f415a6"> 101</a></span>  <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#af46361932dd0c00fb873b16659f415a6">StreamState</a>() : <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a2d8368f778d37b116eb6308e171570f0">updates</a>(), <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html#a156394001b71a453a74d7af4d686d2ab">terminated</a>(false) {}</div>
+<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  };</div>
+<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
+<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// The value will be `None` if the stream could not be recovered.</span></div>
+<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3"> 105</a></span>  <a class="code" href="classhashmap.html">hashmap<IDType, Option<StreamState></a>> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>;</div>
+<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a45494116292bcb2c0e345c932858bdab"> 106</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a45494116292bcb2c0e345c932858bdab">errors</a>;</div>
+<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
+<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a7e4a15d5df405e0c869a826b6bafc974"> 108</a></span>  <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a7e4a15d5df405e0c869a826b6bafc974">State</a>() : <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>(), <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a45494116292bcb2c0e345c932858bdab">errors</a>(0) {}</div>
+<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  };</div>
+<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
+<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aeab4a0b1b22e9ea926c0fca34271ddc9"> 111</a></span>  <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aeab4a0b1b22e9ea926c0fca34271ddc9">StatusUpdateManagerProcess</a>()</div>
+<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  : <a class="code" href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">process</a>::<a class="code" href="classprocess_1_1ProcessBase.html#a318038bacd95e4260864533f7cfe12fd">ProcessBase</a>(<a class="code" href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">process</a>::ID::<a class="code" href="namespaceprocess_1_1ID.html#aeb11a48c9def1da169d8455a30d0ee39">generate</a>(<span class="stringliteral">"status-update-manager"</span>)),</div>
+<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  paused(false) {}</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="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aeab4a0b1b22e9ea926c0fca34271ddc9">StatusUpdateManagerProcess</a>(<span class="keyword">const</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html">StatusUpdateManagerProcess</a>& that) = <span class="keyword">delete</span>;</div>
+<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html">StatusUpdateManagerProcess</a>& <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#ac5a0e5c29fe6a630c2b3d0f73dc79ddc">operator=</a>(</div>
+<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">const</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html">StatusUpdateManagerProcess</a>& that) = <span class="keyword">delete</span>;</div>
+<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
+<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// Implementation.</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="comment">// Explicitly use `initialize` since we're overloading below.</span></div>
+<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">using</span> <a class="code" href="classprocess_1_1ProcessBase.html#a6baf49d6234eb638d068a98514e4ae3f">process::ProcessBase::initialize</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>  <span class="comment">// Initializes the actor with the necessary callbacks.</span></div>
+<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// `_forwardCallback` is called whenever there is a new status update that</span></div>
+<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// needs to be forwarded.</span></div>
+<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// `_getPath` is called in order to generate the path of a status update</span></div>
+<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// stream checkpoint file, given an `IDType`.</span></div>
+<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#ada5dee44c0cc874403efa6c2c3cde9d2"> 130</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#ada5dee44c0cc874403efa6c2c3cde9d2">initialize</a>(</div>
+<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">const</span> lambda::function<<span class="keywordtype">void</span>(<span class="keyword">const</span> UpdateType&)>& _forwardCallback,</div>
+<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">const</span> lambda::function<<span class="keyword">const</span> std::string(<span class="keyword">const</span> IDType&)>& _getPath)</div>
+<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div>
+<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  forwardCallback = _forwardCallback;</div>
+<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  getPath = _getPath;</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>  <span class="comment">// Forwards the status update on the specified update stream.</span></div>
+<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// If `checkpoint` is `false`, the update will be retried as long as it is in</span></div>
+<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// memory, but it will not be checkpointed.</span></div>
+<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b"> 142</a></span>  <a class="code" href="classprocess_1_1Future.html">process::Future<Nothing></a> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a>(</div>
+<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">const</span> UpdateType& <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a>,</div>
+<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">bool</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1state_1_1internal.html#a749d698dcb6786428fa589b72cee6467">checkpoint</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>  LOG(INFO) << <span class="stringliteral">"Received status update "</span> << <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a>;</div>
+<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
+<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (!streams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(streamId)) {</div>
+<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="classTry.html">Try<Nothing></a> <a class="code" href="namespacecgroups.html#a2ecc89636706df947027a4c3c2100fbe">create</a> =</div>
+<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  createStatusUpdateStream(</div>
+<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  streamId,</div>
+<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  update.has_framework_id()</div>
+<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  ? <a class="code" href="classOption.html">Option<FrameworkID></a>(update.framework_id())</div>
+<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  : <a class="code" href="structNone.html">None</a>(),</div>
+<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1state_1_1internal.html#a749d698dcb6786428fa589b72cee6467">checkpoint</a>);</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">if</span> (create.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(create.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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>  CHECK(streams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(streamId));</div>
+<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  StatusUpdateStream* stream = streams[streamId].<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>();</div>
+<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
+<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// Verify that we didn't get a non-checkpointable update for a</span></div>
+<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// stream that is checkpointable, and vice-versa.</span></div>
+<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (stream->checkpointed() != <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1state_1_1internal.html#a749d698dcb6786428fa589b72cee6467">checkpoint</a>) {</div>
+<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(</div>
+<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="stringliteral">"Mismatched checkpoint value for status update "</span> +</div>
+<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(update) + <span class="stringliteral">" (expected checkpoint="</span> +</div>
+<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(stream->checkpointed()) + <span class="stringliteral">" actual checkpoint="</span> +</div>
+<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(checkpoint) + <span class="stringliteral">")"</span>);</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>  <span class="comment">// Verify that the framework ID of the update matches the framework ID</span></div>
+<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// of the stream.</span></div>
+<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (update.has_framework_id() != stream->frameworkId.isSome()) {</div>
+<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(</div>
+<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="stringliteral">"Mismatched framework ID for status update "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(update) +</div>
+<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="stringliteral">" (expected "</span> +</div>
+<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  (stream->frameworkId.isSome()</div>
+<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  ? <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(stream->frameworkId.get())</div>
+<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  : <span class="stringliteral">"no framework ID"</span>) +</div>
+<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="stringliteral">" got "</span> +</div>
+<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  (update.has_framework_id()</div>
+<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  ? <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(update.framework_id())</div>
+<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  : <span class="stringliteral">"no framework ID"</span>) +</div>
+<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="stringliteral">")"</span>);</div>
+<div class="line"><a name="l00189"></a><span class="lineno"> 189</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>  <span class="keywordflow">if</span> (update.has_framework_id() &&</div>
+<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  update.framework_id() != stream->frameworkId.get()) {</div>
+<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(</div>
+<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="stringliteral">"Mismatched framework ID for status update "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(update) +</div>
+<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="stringliteral">" (expected "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(stream->frameworkId.get()) +</div>
+<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="stringliteral">" actual "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(update.framework_id()) + <span class="stringliteral">")"</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> </div>
+<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// Handle the status update.</span></div>
+<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="classTry.html">Try<bool></a> result = stream->update(update);</div>
+<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (result.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(result.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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> </div>
+<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// This only happens if the status update is a duplicate.</span></div>
+<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (!result.<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="structNothing.html">Nothing</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>  <span class="comment">// Forward the status update if this is at the front of the queue.</span></div>
+<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// Subsequent status updates will be sent in `acknowledgement()`.</span></div>
+<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (!paused && stream->pending.size() == 1) {</div>
+<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <a class="code" href="stout_2include_2stout_2check_8hpp.html#ab8738e43a60086f3b434c0278933e85e">CHECK_NONE</a>(stream->timeout);</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="keyword">const</span> <a class="code" href="classResult.html">Result<UpdateType></a>& next = stream->next();</div>
+<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">if</span> (next.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div>
+<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(next.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</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> </div>
+<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="stout_2include_2stout_2check_8hpp.html#aee320e7c6e107071f4b85d4cc135a265">CHECK_SOME</a>(next);</div>
+<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  stream->timeout =</div>
+<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  forward(streamId, next.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), <a class="code" href="namespacemesos_1_1internal_1_1slave.html#aeb8b9ceb7ee7fb45557ab4beeb3361a9">slave::STATUS_UPDATE_RETRY_INTERVAL_MIN</a>);</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> </div>
+<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div>
+<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div>
+<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
+<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// Process the acknowledgment of a status update.</span></div>
+<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// This will result in the next status update being forwarded.</span></div>
+<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// Returns `true` if the ACK is handled successfully (e.g., checkpointed)</span></div>
+<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// and the task's status update stream is not terminated.</span></div>
+<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// `false` same as above except the status update stream is</span></div>
+<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">// terminated.</span></div>
+<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// `Failure` if there are any errors (e.g., duplicate, checkpointing).</span></div>
+<div class="line"><a name="l00237"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aaae7192b8a53cb1ad5b745cddeacc42b"> 237</a></span>  <a class="code" href="classprocess_1_1Future.html">process::Future<bool></a> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aaae7192b8a53cb1ad5b745cddeacc42b">acknowledgement</a>(</div>
+<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">const</span> <a class="code" href="structid_1_1UUID.html">UUID</a>& uuid)</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>  LOG(INFO) << <span class="stringliteral">"Received status update acknowledgement (UUID: "</span> << uuid << <span class="stringliteral">")"</span></div>
+<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  << <span class="stringliteral">" for stream "</span> << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId);</div>
+<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
+<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// This might happen if we haven't completed recovery yet or if the</span></div>
+<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">// acknowledgement is for a stream that has been cleaned up.</span></div>
+<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">if</span> (!streams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(streamId)) {</div>
+<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(</div>
+<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="stringliteral">"Cannot find the status update stream "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId));</div>
+<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
+<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
+<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  StatusUpdateStream* stream = streams[streamId].<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>();</div>
+<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div>
+<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="comment">// Handle the acknowledgement.</span></div>
+<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <a class="code" href="classTry.html">Try<bool></a> result = stream->acknowledgement(uuid);</div>
+<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
+<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (result.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(result.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</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>  <span class="keywordflow">if</span> (!result.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>()) {</div>
+<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(<span class="stringliteral">"Duplicate status update acknowledgement"</span>);</div>
+<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
+<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
+<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  stream->timeout = <a class="code" href="structNone.html">None</a>();</div>
+<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
+<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">// Get the next update in the queue.</span></div>
+<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">const</span> <a class="code" href="classResult.html">Result<UpdateType></a>& next = stream->next();</div>
+<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">if</span> (next.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div>
+<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(next.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div>
+<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div>
+<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div>
+<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordtype">bool</span> terminated = stream->terminated;</div>
+<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">if</span> (terminated) {</div>
+<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (next.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>()) {</div>
+<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  LOG(WARNING) << <span class="stringliteral">"Acknowledged a terminal status update but updates are"</span></div>
+<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  << <span class="stringliteral">" still pending"</span>;</div>
+<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div>
+<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  cleanupStatusUpdateStream(streamId);</div>
+<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!paused && next.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>()) {</div>
+<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// Forward the next queued status update.</span></div>
+<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  stream->timeout =</div>
+<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  forward(streamId, next.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), <a class="code" href="namespacemesos_1_1internal_1_1slave.html#aeb8b9ceb7ee7fb45557ab4beeb3361a9">slave::STATUS_UPDATE_RETRY_INTERVAL_MIN</a>);</div>
+<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div>
+<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div>
+<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> !terminated;</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="comment">// Recovers the status update manager's state using the supplied stream IDs.</span></div>
+<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// Returns:</span></div>
+<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// - The recovered state if successful.</span></div>
+<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// - The recovered state, including the number of errors encountered, if</span></div>
+<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// `strict == false` and any of the streams couldn't be recovered.</span></div>
+<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">// - A `Failure` if `strict == true` and any of the streams couldn't be</span></div>
+<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">// recovered.</span></div>
+<div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#ab8a393d0453cc8174d71dad6f1e45d6f"> 296</a></span>  <a class="code" href="classprocess_1_1Future.html">process::Future<State></a> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#ab8a393d0453cc8174d71dad6f1e45d6f">recover</a>(</div>
+<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keyword">const</span> std::list<IDType>& streamIds,</div>
+<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordtype">bool</span> strict)</div>
+<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  {</div>
+<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  LOG(INFO) << <span class="stringliteral">"Recovering status update manager"</span>;</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>  <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html">State</a> state;</div>
+<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> IDType& streamId, streamIds) {</div>
+<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <a class="code" href="classResult.html">Result<typename StatusUpdateStream::State></a> result =</div>
+<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  recoverStatusUpdateStream(streamId, strict);</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>  <span class="keywordflow">if</span> (result.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div>
+<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">const</span> std::string <a class="code" href="classprocess_1_1ProcessBase.html#afb219ae4b5e8dab3f724e78032e03d0c">message</a> =</div>
+<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="stringliteral">"Failed to recover status update stream "</span> +</div>
+<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId) + <span class="stringliteral">": "</span> + result.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>();</div>
+<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  LOG(WARNING) << <a class="code" href="classprocess_1_1ProcessBase.html#afb219ae4b5e8dab3f724e78032e03d0c">message</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>  <span class="keywordflow">if</span> (strict) {</div>
+<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="foreach_8hpp.html#acac417231a256d7c6164a86db970da86">foreachkey</a> (<span class="keyword">const</span> IDType& streamId, <a class="code" href="namespaceutils.html#ac8be4e5e1fedfabe178ca20b6a37349c">utils::copy</a>(streams)) {</div>
+<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  cleanupStatusUpdateStream(streamId);</div>
+<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  }</div>
+<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
+<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  CHECK(streams.empty());</div>
+<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  CHECK(frameworkStreams.empty());</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>  <span class="keywordflow">return</span> <a class="code" href="structprocess_1_1Failure.html">process::Failure</a>(message);</div>
+<div class="line"><a name="l00322"></a><span class="lineno"> 322</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>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a45494116292bcb2c0e345c932858bdab">errors</a>++;</div>
+<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (result.<a class="code" href="classResult.html#ac2cdc0db9f9d29a5bb2f1cf19c29da49">isNone</a>()) {</div>
+<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// This can happen if the initial checkpoint of the stream didn't</span></div>
+<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// complete.</span></div>
+<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>[streamId] = <a class="code" href="structNone.html">None</a>();</div>
+<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  } <span class="keywordflow">else</span> {</div>
+<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keyword">const</span> <span class="keyword">typename</span> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1StatusUpdateStream_1_1State.html">StatusUpdateStream::State</a>& streamState = result.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>();</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>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>[streamId] = <span class="keyword">typename</span> <a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State_1_1StreamState.html">State::StreamState</a>();</div>
+<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>[streamId]->updates = streamState.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1StatusUpdateStream_1_1State.html#a730ad1350cccb23f6c31e33bfde113a8">updates</a>;</div>
+<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a2e5e8f464fe376627713d446c2f29fc3">streams</a>[streamId]->terminated = streamState.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1StatusUpdateStream_1_1State.html#abda5082d00c3171ac75034be9954eaca">terminated</a>;</div>
+<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
+<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (streamState.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1StatusUpdateStream_1_1State.html#aafb4891c6635a8ca1fc12c59a47f8b3f">error</a>) {</div>
+<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  state.<a class="code" href="structmesos_1_1internal_1_1StatusUpdateManagerProcess_1_1State.html#a45494116292bcb2c0e345c932858bdab">errors</a>++;</div>
+<div class="line"><a name="l00338"></a><span class="lineno"> 338</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>  }</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>  <span class="keywordflow">return</span> state;</div>
+<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  }</div>
+<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div>
+<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// Closes all status update streams corresponding to a framework.</span></div>
+<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">//</span></div>
+<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// NOTE: This stops retrying any pending status updates for this framework,</span></div>
+<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">// but does NOT garbage collect any checkpointed state. The caller is</span></div>
+<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// responsible for garbage collection after this method has returned.</span></div>
+<div class="line"><a name="l00350"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a86a61db827ba0cb772ba8199b14403a2"> 350</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a86a61db827ba0cb772ba8199b14403a2">cleanup</a>(<span class="keyword">const</span> FrameworkID& frameworkId)</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>  LOG(INFO) << <span class="stringliteral">"Closing status update streams for framework"</span></div>
+<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  << <span class="stringliteral">" '"</span> << frameworkId << <span class="stringliteral">"'"</span>;</div>
+<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
+<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">if</span> (frameworkStreams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(frameworkId)) {</div>
+<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">foreach</span> (<span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <a class="code" href="namespaceutils.html#ac8be4e5e1fedfabe178ca20b6a37349c">utils::copy</a>(frameworkStreams[frameworkId])) {</div>
+<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  cleanupStatusUpdateStream(streamId);</div>
+<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div>
+<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  }</div>
+<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div>
+<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
+<div class="line"><a name="l00363"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#acfe6af1fc940847bffb9131429ede917"> 363</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#acfe6af1fc940847bffb9131429ede917">pause</a>()</div>
+<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  {</div>
+<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  LOG(INFO) << <span class="stringliteral">"Pausing sending status updates"</span>;</div>
+<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  paused = <span class="keyword">true</span>;</div>
+<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div>
+<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div>
+<div class="line"><a name="l00369"></a><span class="lineno"><a class="line" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aadcb02aae700bfa2bd5fcf488da725e7"> 369</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#aadcb02aae700bfa2bd5fcf488da725e7">resume</a>()</div>
+<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  {</div>
+<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  LOG(INFO) << <span class="stringliteral">"Resuming sending status updates"</span>;</div>
+<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  paused = <span class="keyword">false</span>;</div>
+<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
+<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <a class="code" href="classprocess_1_1Owned.html">process::Owned<StatusUpdateStream></a>& stream,</div>
+<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  streams) {</div>
+<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keyword">const</span> <a class="code" href="classResult.html">Result<UpdateType></a>& next = stream->next();</div>
+<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div>
+<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">if</span> (next.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>()) {</div>
+<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keyword">const</span> UpdateType& <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a> = next.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>();</div>
+<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
+<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  LOG(WARNING) << <span class="stringliteral">"Sending status update "</span> << <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a>;</div>
+<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div>
+<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  stream->timeout =</div>
+<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  forward(streamId, update, <a class="code" href="namespacemesos_1_1internal_1_1slave.html#aeb8b9ceb7ee7fb45557ab4beeb3361a9">slave::STATUS_UPDATE_RETRY_INTERVAL_MIN</a>);</div>
+<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  }</div>
+<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div>
+<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  }</div>
+<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
+<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="keyword">private</span>:</div>
+<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// Forward declarations.</span></div>
+<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keyword">class </span>StatusUpdateStream;</div>
+<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div>
+<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// Helper methods.</span></div>
+<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div>
+<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// Creates a new status update stream, adding it to `streams`.</span></div>
+<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <a class="code" href="classTry.html">Try<Nothing></a> createStatusUpdateStream(</div>
+<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<FrameworkID></a>& frameworkId,</div>
+<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordtype">bool</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1state_1_1internal.html#a749d698dcb6786428fa589b72cee6467">checkpoint</a>)</div>
+<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  {</div>
+<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  VLOG(1) << <span class="stringliteral">"Creating status update stream "</span> << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId)</div>
+<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  << <span class="stringliteral">" checkpoint="</span> << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(checkpoint);</div>
+<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div>
+<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="classTry.html">Try<process::Owned<StatusUpdateStream></a>> stream =</div>
+<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <a class="code" href="namespacecgroups.html#a2ecc89636706df947027a4c3c2100fbe">StatusUpdateStream::create</a>(</div>
+<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  streamId,</div>
+<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  frameworkId,</div>
+<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  checkpoint ? <a class="code" href="classOption.html">Option<std::string></a>(getPath(streamId)) : <a class="code" href="structNone.html">None</a>());</div>
+<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
+<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">if</span> (stream.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div>
+<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(stream.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div>
+<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</div>
+<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div>
+<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  streams[streamId] = std::move(stream.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div>
+<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div>
+<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">if</span> (frameworkId.<a class="code" href="classOption.html#a4e3bf8416d95246f43c91f1b5c309323">isSome</a>()) {</div>
+<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  frameworkStreams[frameworkId.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>()].insert(streamId);</div>
+<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  }</div>
+<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div>
+<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div>
+<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  }</div>
+<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div>
+<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
+<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Recovers a status update stream and adds it to the map of streams.</span></div>
+<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <a class="code" href="classResult.html">Result<typename StatusUpdateStream::State></a> recoverStatusUpdateStream(</div>
+<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">bool</span> strict)</div>
+<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  {</div>
+<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  VLOG(1) << <span class="stringliteral">"Recovering status update stream "</span> << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId);</div>
+<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> </div>
+<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <a class="code" href="classResult.html">Result</a><std::pair<</div>
+<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <a class="code" href="classprocess_1_1Owned.html">process::Owned<StatusUpdateStream></a>,</div>
+<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keyword">typename</span> StatusUpdateStream::State>> result =</div>
+<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#afa485608d261b11b9b4c619b4b4d6e28">StatusUpdateStream::recover</a>(streamId, getPath(streamId), strict);</div>
+<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
+<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">if</span> (result.isError()) {</div>
+<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(result.error());</div>
+<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  }</div>
+<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div>
+<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">if</span> (result.isNone()) {</div>
+<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div>
+<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  }</div>
+<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> </div>
+<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  process::Owned<StatusUpdateStream> stream = std::get<0>(result.get());</div>
+<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">typename</span> StatusUpdateStream::State& streamState = std::get<1>(result.get());</div>
+<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div>
+<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">if</span> (stream->terminated) {</div>
+<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">return</span> streamState;</div>
+<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div>
+<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div>
+<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (stream->frameworkId.isSome()) {</div>
+<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  frameworkStreams[stream->frameworkId.<a class="code" href="classprocess_1_1Owned.html#a2f64ec02eea2321e25611175edf776aa">get</a>()].insert(streamId);</div>
+<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  }</div>
+<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
+<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="comment">// Get the next update in the queue.</span></div>
+<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keyword">const</span> <a class="code" href="classResult.html">Result<UpdateType></a>& next = stream->next();</div>
+<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">if</span> (next.<a class="code" href="classResult.html#aeca16ad17d299ad885c9b46c83b12a3d">isError</a>()) {</div>
+<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(next.<a class="code" href="classResult.html#a521adf96f5c27d26d6b1d580aae8aaee">error</a>());</div>
+<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  }</div>
+<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div>
+<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">if</span> (!paused && next.<a class="code" href="classResult.html#a85eaa52037223d71092e65701c166562">isSome</a>()) {</div>
+<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="comment">// Forward the next queued status update.</span></div>
+<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  stream->timeout =</div>
+<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  forward(streamId, next.<a class="code" href="classResult.html#aedf79f3b14dcda5791b84a64ada4d412">get</a>(), <a class="code" href="namespacemesos_1_1internal_1_1slave.html#aeb8b9ceb7ee7fb45557ab4beeb3361a9">slave::STATUS_UPDATE_RETRY_INTERVAL_MIN</a>);</div>
+<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div>
+<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div>
+<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  streams[streamId] = std::move(stream);</div>
+<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
+<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">return</span> streamState;</div>
+<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div>
+<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div>
+<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordtype">void</span> cleanupStatusUpdateStream(<span class="keyword">const</span> IDType& streamId)</div>
+<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  {</div>
+<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  VLOG(1) << <span class="stringliteral">"Cleaning up status update stream "</span> << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId);</div>
+<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> </div>
+<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  CHECK(streams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(streamId)) << <span class="stringliteral">"Cannot find the status update stream "</span></div>
+<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  << <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(streamId);</div>
+<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> </div>
+<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  StatusUpdateStream* stream = streams[streamId].<a class="code" href="classhashmap.html#a41f14039c11b5a1ab6c81add74192c9a">get</a>();</div>
+<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div>
+<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">if</span> (stream->frameworkId.isSome()) {</div>
+<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keyword">const</span> FrameworkID frameworkId = stream->frameworkId.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>();</div>
+<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div>
+<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  CHECK(frameworkStreams.<a class="code" href="classhashmap.html#ac142b3f8b73c76d5d4545bbd299007e5">contains</a>(frameworkId));</div>
+<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div>
+<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  frameworkStreams[frameworkId].erase(streamId);</div>
+<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordflow">if</span> (frameworkStreams[frameworkId].empty()) {</div>
+<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  frameworkStreams.erase(frameworkId);</div>
+<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  }</div>
+<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  }</div>
+<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div>
+<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  streams.erase(streamId);</div>
+<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  }</div>
+<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> </div>
+<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="comment">// Forwards the status update and starts a timer based on the `duration` to</span></div>
+<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="comment">// check for ACK.</span></div>
+<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <a class="code" href="classprocess_1_1Timeout.html">process::Timeout</a> forward(</div>
+<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keyword">const</span> IDType& streamId,</div>
+<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keyword">const</span> UpdateType& <a class="code" href="classmesos_1_1internal_1_1StatusUpdateManagerProcess.html#a1658b4adb952dc5e20465e31d572633b">update</a>,</div>
+<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">const</span> <a class="code" href="classDuration.h
<TRUNCATED>