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| <div class="title">sequence.hpp</div> </div> |
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| <a href="sequence_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __PROCESS_SEQUENCE_HPP__</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __PROCESS_SEQUENCE_HPP__</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <glog/logging.h></span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <<a class="code" href="future_8hpp.html">process/future.hpp</a>></span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <<a class="code" href="id_8hpp.html">process/id.hpp</a>></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <<a class="code" href="owned_8hpp.html">process/owned.hpp</a>></span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <<a class="code" href="libprocess_2include_2process_2process_8hpp.html">process/process.hpp</a>></span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <<a class="code" href="nothing_8hpp.html">stout/nothing.hpp</a>></span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">namespace </span><a class="code" href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">process</a> {</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="comment">// Forward declaration.</span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">class </span>SequenceProcess;</div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// Provides an abstraction that serializes the execution of a sequence</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// of callbacks.</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classprocess_1_1Sequence.html"> 33</a></span> <span class="keyword">class </span><a class="code" href="classprocess_1_1Sequence.html">Sequence</a></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="classprocess_1_1Sequence.html#ac17fc82e38c2b694fdaee5ba2223398d">Sequence</a>(<span class="keyword">const</span> std::string& <span class="keywordtype">id</span> = <span class="stringliteral">"sequence"</span>);</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="classprocess_1_1Sequence.html#aa6cdb7c2e2e4b594bb9e95cb947b00b9">~Sequence</a>();</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="comment">// Registers a callback that will be invoked when all the futures</span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// returned by the previously registered callbacks are in</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// non-pending status (i.e., ready, discarded or failed). Due to</span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// these semantics, we should avoid registering a callback which</span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">// returns a future that could be in non-pending status for a long</span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="comment">// time because it will prevent all the subsequent callbacks from</span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// being invoked. This is analogous to the requirement that we want</span></div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// to avoid invoking blocking function in a libprocess handler. A</span></div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="comment">// user is allowed to cancel a registered callback by discarding the</span></div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// returned future. Other callbacks in this sequence will NOT be</span></div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// affected. The subsequent callbacks will not be invoked until the</span></div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// future is actually DISCARDED.</span></div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="classprocess_1_1Future.html">Future<T></a> <a class="code" href="classprocess_1_1Sequence.html#a9302423ec2bde9a3be4431cac90e04c8">add</a>(<span class="keyword">const</span> lambda::function<<a class="code" href="classprocess_1_1Future.html">Future<T></a>()>& callback);</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="keyword">private</span>:</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// Not copyable, not assignable.</span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classprocess_1_1Sequence.html#ac17fc82e38c2b694fdaee5ba2223398d">Sequence</a>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Sequence.html">Sequence</a>&);</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="classprocess_1_1Sequence.html">Sequence</a>& operator=(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Sequence.html">Sequence</a>&);</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classprocess_1_1SequenceProcess.html">SequenceProcess</a>* process;</div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> };</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div> |
| <div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classprocess_1_1SequenceProcess.html"> 63</a></span> <span class="keyword">class </span><a class="code" href="classprocess_1_1SequenceProcess.html">SequenceProcess</a> : <span class="keyword">public</span> <a class="code" href="classprocess_1_1Process.html">Process</a><SequenceProcess></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> {</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="classprocess_1_1SequenceProcess.html#a68deae60a68730aabf42fb40b5feb0de"> 66</a></span>  <a class="code" href="classprocess_1_1SequenceProcess.html#a68deae60a68730aabf42fb40b5feb0de">SequenceProcess</a>(<span class="keyword">const</span> std::string& <span class="keywordtype">id</span>)</div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  : <a class="code" href="classprocess_1_1ProcessBase.html">ProcessBase</a>(ID::<a class="code" href="namespaceprocess_1_1ID.html#aeb11a48c9def1da169d8455a30d0ee39">generate</a>(id)),</div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  last(<a class="code" href="structNothing.html">Nothing</a>()) {}</div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div> |
| <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classprocess_1_1SequenceProcess.html#a4280072863ec9645349048798a85628a"> 71</a></span>  <a class="code" href="classprocess_1_1Future.html">Future<T></a> <a class="code" href="classprocess_1_1SequenceProcess.html#a4280072863ec9645349048798a85628a">add</a>(<span class="keyword">const</span> lambda::function<<a class="code" href="classprocess_1_1Future.html">Future<T></a>()>& callback)</div> |
| <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {</div> |
| <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// This is the future that is used to notify the next callback</span></div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// (denoted by 'N' in the following graph).</span></div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="classprocess_1_1Owned.html">Owned<Promise<Nothing></a>> notifier(<span class="keyword">new</span> <a class="code" href="classprocess_1_1Promise.html">Promise<Nothing></a>());</div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// This is the future that will be returned to the user (denoted</span></div> |
| <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// by 'F' in the following graph).</span></div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="classprocess_1_1Owned.html">Owned<Promise<T></a>> <a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">promise</a>(<span class="keyword">new</span> <a class="code" href="classprocess_1_1Promise.html">Promise<T></a>());</div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// We use a graph to show how we hook these futures. Each box in</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// the graph represents a future. As mentioned above, 'F' denotes</span></div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// a future that will be returned to the user, and 'N' denotes a</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// future that is used for notifying the next callback. Each arrow</span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">// represents a "notification" relation. We will explain in detail</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// what "notification" means in the following.</span></div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// 'last' 'last' 'last'</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// | | |</span></div> |
| <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// v v v</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">// | N | | N |--+ | N | | N |--+ | N |--+ | N |</span></div> |
| <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// +---+ +---+ | +---+ +---+ | +---+ | +---+</span></div> |
| <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// ==> | ^ ==> | ^ | ^</span></div> |
| <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// | | | | | |</span></div> |
| <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// | +---+ | +---+ | +---+</span></div> |
| <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// +-->| F | +-->| F | +-->| F |</span></div> |
| <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// +---+ +---+ +---+</span></div> |
| <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// Initial => Added one callback => Added two callbacks.</span></div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// Setup the "notification" from 'F' to 'N' so that when a</span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// callback is done, signal the notifier ('N').</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  promise->future().onAny(<a class="code" href="namespaceprocess_1_1network.html#a0a0e16bed4bf0122f2b3513a78399d70">lambda::bind</a>(&completed, notifier));</div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// Setup the "notification" from previous 'N' to 'F' so that when</span></div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// a notifier ('N') is set (indicating the previous callback has</span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">// completed), invoke the next callback ('F') in the sequence.</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  last.<a class="code" href="classprocess_1_1Future.html#a71bde220aed3c725cef2040f63adf42a">onAny</a>(<a class="code" href="namespaceprocess_1_1network.html#a0a0e16bed4bf0122f2b3513a78399d70">lambda::bind</a>(&notified<T>, promise, callback));</div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// In the following, we setup the hooks so that if this sequence</span></div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// process is being terminated, all pending callbacks will be</span></div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// discarded. We use weak futures here to avoid cyclic dependencies.</span></div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// Discard the future associated with this notifier.</span></div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  notifier->future().onDiscard(</div> |
| <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="namespaceprocess_1_1network.html#a0a0e16bed4bf0122f2b3513a78399d70">lambda::bind</a>(</div> |
| <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  &internal::discard<T>,</div> |
| <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="classprocess_1_1WeakFuture.html">WeakFuture<T></a>(promise->future())));</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">// Discard the notifier associated with the previous future.</span></div> |
| <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  notifier->future().onDiscard(</div> |
| <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="namespaceprocess_1_1network.html#a0a0e16bed4bf0122f2b3513a78399d70">lambda::bind</a>(</div> |
| <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  &internal::discard<Nothing>,</div> |
| <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="classprocess_1_1WeakFuture.html">WeakFuture<Nothing></a>(last)));</div> |
| <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div> |
| <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Update the 'last'.</span></div> |
| <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  last = notifier->future();</div> |
| <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> |
| <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> promise->future();</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="keyword">protected</span>:</div> |
| <div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="classprocess_1_1SequenceProcess.html#a6eae0ed53077a4573c73d0a36ed7964d"> 134</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classprocess_1_1SequenceProcess.html#a6eae0ed53077a4573c73d0a36ed7964d">finalize</a>()</div> |
| <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  {</div> |
| <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  last.<a class="code" href="classprocess_1_1Future.html#a4012f3faa6191fc13874dca62c14ced0">discard</a>();</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">// TODO(jieyu): Do we need to wait for the future of the last</span></div> |
| <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// callback to be in DISCARDED state?</span></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> <span class="keyword">private</span>:</div> |
| <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// Invoked when a callback is done.</span></div> |
| <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> completed(<a class="code" href="classprocess_1_1Owned.html">Owned</a><<a class="code" href="classprocess_1_1Promise.html">Promise<Nothing></a>> notifier)</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>  notifier->set(<a class="code" href="structNothing.html">Nothing</a>());</div> |
| <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div> |
| <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div> |
| <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Invoked when a notifier is set.</span></div> |
| <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> notified(</div> |
| <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  Owned<Promise<T>> <a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">promise</a>,</div> |
| <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">const</span> lambda::function<Future<T>()>& callback)</div> |
| <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  {</div> |
| <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">promise</a>->future().hasDiscard()) {</div> |
| <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// The user has shown the intention to discard this callback</span></div> |
| <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// (i.e., by calling future.discard()). As a result, we will</span></div> |
| <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// just skip this callback.</span></div> |
| <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">promise</a>->discard();</div> |
| <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">promise</a>->associate(callback());</div> |
| <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div> |
| <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</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>  Future<Nothing> last;</div> |
| <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> };</div> |
| <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div> |
| <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> |
| <div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="classprocess_1_1Sequence.html#ac17fc82e38c2b694fdaee5ba2223398d"> 169</a></span> <span class="keyword">inline</span> <a class="code" href="classprocess_1_1Sequence.html#ac17fc82e38c2b694fdaee5ba2223398d">Sequence::Sequence</a>(<span class="keyword">const</span> std::string& <span class="keywordtype">id</span>)</div> |
| <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> {</div> |
| <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  process = <span class="keyword">new</span> <a class="code" href="classprocess_1_1SequenceProcess.html">SequenceProcess</a>(<span class="keywordtype">id</span>);</div> |
| <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="namespaceprocess.html#aff22904a83567125d3b4d0d88e5a2270">process::spawn</a>(process);</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> </div> |
| <div class="line"><a name="l00176"></a><span class="lineno"><a class="line" href="classprocess_1_1Sequence.html#aa6cdb7c2e2e4b594bb9e95cb947b00b9"> 176</a></span> <span class="keyword">inline</span> <a class="code" href="classprocess_1_1Sequence.html#aa6cdb7c2e2e4b594bb9e95cb947b00b9">Sequence::~Sequence</a>()</div> |
| <div class="line"><a name="l00177"></a><span class="lineno"> 177</span> {</div> |
| <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="namespaceprocess.html#a20443908afa3212215166e26065349e5">process::terminate</a>(process);</div> |
| <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="namespaceprocess.html#a07833fb41a8b0c1f18fa5485ca8c18d4">process::wait</a>(process);</div> |
| <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">delete</span> process;</div> |
| <div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div> |
| <div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div> |
| <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div> |
| <div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="classprocess_1_1Sequence.html#a9302423ec2bde9a3be4431cac90e04c8"> 185</a></span> <a class="code" href="classprocess_1_1Future.html">Future<T></a> <a class="code" href="classprocess_1_1Sequence.html#a9302423ec2bde9a3be4431cac90e04c8">Sequence::add</a>(<span class="keyword">const</span> lambda::function<<a class="code" href="classprocess_1_1Future.html">Future<T></a>()>& callback)</div> |
| <div class="line"><a name="l00186"></a><span class="lineno"> 186</span> {</div> |
| <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceprocess.html#acfbc29404bc653268289691b0dd59e22">dispatch</a>(process, &SequenceProcess::add<T>, callback);</div> |
| <div class="line"><a name="l00188"></a><span class="lineno"> 188</span> }</div> |
| <div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div> |
| <div class="line"><a name="l00190"></a><span class="lineno"> 190</span> } <span class="comment">// namespace process {</span></div> |
| <div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div> |
| <div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor">#endif // __PROCESS_SEQUENCE_HPP__</span></div> |
| <div class="ttc" id="namespaceprocess_1_1ID_html_aeb11a48c9def1da169d8455a30d0ee39"><div class="ttname"><a href="namespaceprocess_1_1ID.html#aeb11a48c9def1da169d8455a30d0ee39">process::ID::generate</a></div><div class="ttdeci">std::string generate(const std::string &prefix="")</div><div class="ttdoc">Returns &#39;prefix(N)&#39; where N represents the number of instances where the same prefix (wrt...</div></div> |
| <div class="ttc" id="structNothing_html"><div class="ttname"><a href="structNothing.html">Nothing</a></div><div class="ttdef"><b>Definition:</b> nothing.hpp:16</div></div> |
| <div class="ttc" id="classprocess_1_1SequenceProcess_html"><div class="ttname"><a href="classprocess_1_1SequenceProcess.html">process::SequenceProcess</a></div><div class="ttdef"><b>Definition:</b> sequence.hpp:63</div></div> |
| <div class="ttc" id="classprocess_1_1SequenceProcess_html_a4280072863ec9645349048798a85628a"><div class="ttname"><a href="classprocess_1_1SequenceProcess.html#a4280072863ec9645349048798a85628a">process::SequenceProcess::add</a></div><div class="ttdeci">Future< T > add(const lambda::function< Future< T >()> &callback)</div><div class="ttdef"><b>Definition:</b> sequence.hpp:71</div></div> |
| <div class="ttc" id="namespaceprocess_1_1network_html_a0a0e16bed4bf0122f2b3513a78399d70"><div class="ttname"><a href="namespaceprocess_1_1network.html#a0a0e16bed4bf0122f2b3513a78399d70">process::network::bind</a></div><div class="ttdeci">Try< Nothing > bind(int s, const Address &address)</div><div class="ttdef"><b>Definition:</b> network.hpp:46</div></div> |
| <div class="ttc" id="classprocess_1_1Sequence_html_a9302423ec2bde9a3be4431cac90e04c8"><div class="ttname"><a href="classprocess_1_1Sequence.html#a9302423ec2bde9a3be4431cac90e04c8">process::Sequence::add</a></div><div class="ttdeci">Future< T > add(const lambda::function< Future< T >()> &callback)</div><div class="ttdef"><b>Definition:</b> sequence.hpp:185</div></div> |
| <div class="ttc" id="classprocess_1_1ProcessBase_html"><div class="ttname"><a href="classprocess_1_1ProcessBase.html">process::ProcessBase</a></div><div class="ttdef"><b>Definition:</b> process.hpp:68</div></div> |
| <div class="ttc" id="classprocess_1_1Future_html_a4012f3faa6191fc13874dca62c14ced0"><div class="ttname"><a href="classprocess_1_1Future.html#a4012f3faa6191fc13874dca62c14ced0">process::Future::discard</a></div><div class="ttdeci">bool discard()</div><div class="ttdef"><b>Definition:</b> future.hpp:1014</div></div> |
| <div class="ttc" id="classprocess_1_1Sequence_html_aa6cdb7c2e2e4b594bb9e95cb947b00b9"><div class="ttname"><a href="classprocess_1_1Sequence.html#aa6cdb7c2e2e4b594bb9e95cb947b00b9">process::Sequence::~Sequence</a></div><div class="ttdeci">~Sequence()</div><div class="ttdef"><b>Definition:</b> sequence.hpp:176</div></div> |
| <div class="ttc" id="namespaceprocess_html_aff22904a83567125d3b4d0d88e5a2270"><div class="ttname"><a href="namespaceprocess.html#aff22904a83567125d3b4d0d88e5a2270">process::spawn</a></div><div class="ttdeci">UPID spawn(ProcessBase *process, bool manage=false)</div><div class="ttdoc">Spawn a new process. </div></div> |
| <div class="ttc" id="namespaceprocess_html_a20443908afa3212215166e26065349e5"><div class="ttname"><a href="namespaceprocess.html#a20443908afa3212215166e26065349e5">process::terminate</a></div><div class="ttdeci">void terminate(const UPID &pid, bool inject=true)</div><div class="ttdoc">Sends a TerminateEvent to the given process. </div></div> |
| <div class="ttc" id="lambda_8hpp_html"><div class="ttname"><a href="lambda_8hpp.html">lambda.hpp</a></div></div> |
| <div class="ttc" id="classprocess_1_1Sequence_html"><div class="ttname"><a href="classprocess_1_1Sequence.html">process::Sequence</a></div><div class="ttdef"><b>Definition:</b> sequence.hpp:33</div></div> |
| <div class="ttc" id="namespaceprocess_html_acfbc29404bc653268289691b0dd59e22"><div class="ttname"><a href="namespaceprocess.html#acfbc29404bc653268289691b0dd59e22">process::dispatch</a></div><div class="ttdeci">void dispatch(const PID< T > &pid, void(T::*method)())</div><div class="ttdef"><b>Definition:</b> dispatch.hpp:157</div></div> |
| <div class="ttc" id="nothing_8hpp_html"><div class="ttname"><a href="nothing_8hpp.html">nothing.hpp</a></div></div> |
| <div class="ttc" id="classprocess_1_1SequenceProcess_html_a6eae0ed53077a4573c73d0a36ed7964d"><div class="ttname"><a href="classprocess_1_1SequenceProcess.html#a6eae0ed53077a4573c73d0a36ed7964d">process::SequenceProcess::finalize</a></div><div class="ttdeci">virtual void finalize()</div><div class="ttdoc">Invoked when a process is terminated. </div><div class="ttdef"><b>Definition:</b> sequence.hpp:134</div></div> |
| <div class="ttc" id="classprocess_1_1Future_html_a71bde220aed3c725cef2040f63adf42a"><div class="ttname"><a href="classprocess_1_1Future.html#a71bde220aed3c725cef2040f63adf42a">process::Future::onAny</a></div><div class="ttdeci">const Future< T > & onAny(AnyCallback &&callback) const </div><div class="ttdef"><b>Definition:</b> future.hpp:1254</div></div> |
| <div class="ttc" id="classprocess_1_1Promise_html"><div class="ttname"><a href="classprocess_1_1Promise.html">process::Promise< Nothing ></a></div></div> |
| <div class="ttc" id="namespacemesos_1_1internal_1_1log_1_1protocol_html_a3b1f8bd7b18c51af9d1f58842950b545"><div class="ttname"><a href="namespacemesos_1_1internal_1_1log_1_1protocol.html#a3b1f8bd7b18c51af9d1f58842950b545">mesos::internal::log::protocol::promise</a></div><div class="ttdeci">Protocol< PromiseRequest, PromiseResponse > promise</div></div> |
| <div class="ttc" id="classprocess_1_1WeakFuture_html"><div class="ttname"><a href="classprocess_1_1WeakFuture.html">process::WeakFuture</a></div><div class="ttdef"><b>Definition:</b> future.hpp:77</div></div> |
| <div class="ttc" id="namespaceprocess_html_a07833fb41a8b0c1f18fa5485ca8c18d4"><div class="ttname"><a href="namespaceprocess.html#a07833fb41a8b0c1f18fa5485ca8c18d4">process::wait</a></div><div class="ttdeci">bool wait(const UPID &pid, const Duration &duration=Seconds(-1))</div><div class="ttdoc">Wait for the process to exit for no more than the specified seconds. </div></div> |
| <div class="ttc" id="future_8hpp_html"><div class="ttname"><a href="future_8hpp.html">future.hpp</a></div></div> |
| <div class="ttc" id="namespaceos_html_ae19e4161a51b86a1f330f3bf1dc75389"><div class="ttname"><a href="namespaceos.html#ae19e4161a51b86a1f330f3bf1dc75389">os::process</a></div><div class="ttdeci">Result< Process > process(pid_t pid)</div><div class="ttdef"><b>Definition:</b> freebsd.hpp:30</div></div> |
| <div class="ttc" id="classprocess_1_1SequenceProcess_html_a68deae60a68730aabf42fb40b5feb0de"><div class="ttname"><a href="classprocess_1_1SequenceProcess.html#a68deae60a68730aabf42fb40b5feb0de">process::SequenceProcess::SequenceProcess</a></div><div class="ttdeci">SequenceProcess(const std::string &id)</div><div class="ttdef"><b>Definition:</b> sequence.hpp:66</div></div> |
| <div class="ttc" id="owned_8hpp_html"><div class="ttname"><a href="owned_8hpp.html">owned.hpp</a></div></div> |
| <div class="ttc" id="classprocess_1_1Owned_html"><div class="ttname"><a href="classprocess_1_1Owned.html">process::Owned</a></div><div class="ttdef"><b>Definition:</b> owned.hpp:35</div></div> |
| <div class="ttc" id="id_8hpp_html"><div class="ttname"><a href="id_8hpp.html">id.hpp</a></div></div> |
| <div class="ttc" id="classprocess_1_1Process_html"><div class="ttname"><a href="classprocess_1_1Process.html">process::Process</a></div><div class="ttdef"><b>Definition:</b> process.hpp:483</div></div> |
| <div class="ttc" id="libprocess_2include_2process_2process_8hpp_html"><div class="ttname"><a href="libprocess_2include_2process_2process_8hpp.html">process.hpp</a></div></div> |
| <div class="ttc" id="classprocess_1_1Sequence_html_ac17fc82e38c2b694fdaee5ba2223398d"><div class="ttname"><a href="classprocess_1_1Sequence.html#ac17fc82e38c2b694fdaee5ba2223398d">process::Sequence::Sequence</a></div><div class="ttdeci">Sequence(const std::string &id="sequence")</div><div class="ttdef"><b>Definition:</b> sequence.hpp:169</div></div> |
| <div class="ttc" id="classprocess_1_1Future_html"><div class="ttname"><a href="classprocess_1_1Future.html">process::Future</a></div><div class="ttdef"><b>Definition:</b> future.hpp:56</div></div> |
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