http://git-wip-us.apache.org/repos/asf/mesos-site/blob/805f4c5b/content/api/latest/c++/future_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/future_8hpp_source.html b/content/api/latest/c++/future_8hpp_source.html index b831670..b7b34bc 100644 --- a/content/api/latest/c++/future_8hpp_source.html +++ b/content/api/latest/c++/future_8hpp_source.html @@ -52,162 +52,164 @@ <div class="title">future.hpp</div> </div> </div><!--header--> <div class="contents"> -<a href="future_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">//</sp an></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="li ne"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __PROCESS_FUTURE_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __PROCESS_FUTURE_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <assert.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 <atomic></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <list></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <memory ></span> <span class="comment">// TODO(benh): Replace shared_ptr with unique_ptr.</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <ostream></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <set></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#i nclude <glog/logging.h></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="clock_8hpp.html">process/clock.hpp</a>></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="latch_8hpp.html">process/latch.hpp</a>></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="owned_8hpp.html">process/owned.hpp</a>></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2libprocess_2include_2process_2pid_8hpp.html">process/pid.hpp</a>></span></div><div class="line"><a name="l00033"></a><span class="lin eno"> 33</span> <span class="preprocessor">#include <<a class="code" href="timer_8hpp.html">process/timer.hpp</a>></span></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="preprocessor">#include <<a class="code" href="abort_8hpp.html">stout/abort.hpp</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="stout_2include_2stout_2check_8hpp.html">stout/check.hpp</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="duration_8hpp.html">stout/duration.hpp</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/er ror.hpp</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="none_8hpp.html">stout/none.hpp</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="preprocessor_8hpp.html">stout/preprocessor.hpp</a>></span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>> ;</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="result__of_8hpp.html">stout/result_of.hpp</a>></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include <<a class="code" href="synchronized_8hpp.html">stout/synchronized.hpp</a>></span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <<a class="code" href="strerror_8hpp.html">stout/os/strerror.hpp</a>></span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="lin e"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">namespace </span><a class="code" href="namespaceprocess.html">process</a> {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// Forward declarations (instead of include to break circular dependency).</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">template</span> <<span class="keyword">typename</span> G></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">struct </span>_Deferred;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div cla ss="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html"> 57</a></span> <span class="keyword">class </span><a class="code" href="classprocess_1_1Future.html">Future</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> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">namespace </span><a class="code" href="namespaceinternal.html">internal</a> {</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> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structprocess_1_1internal_1_1wrap.html"> 63</a></span> <span class="keyword" >struct </span><a class="code" >href="structprocess_1_1internal_1_1wrap.html">wrap</a>;</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">template</span> ><<span class="keyword">typename</span> T></div><div class="line"><a >name="l00066"></a><span class="lineno"><a class="line" >href="structprocess_1_1internal_1_1unwrap.html"> 66</a></span> <span >class="keyword">struct </span><a class="code" >href="structprocess_1_1internal_1_1unwrap.html">unwrap</a>;</div><div >class="line"><a name="l00067"></a><span class="lineno"> >67</span> </div><div class="line"><a name="l00068"></a><span >class="lineno"> 68</span> } <span class="comment">// namespace >internal {</span></div><div class="line"><a name="l00069"></a><span >class="lineno"> 69</span> </div><div class="line"><a >name="l00070"></a><span class="lineno"> 70</span> </div ><div class="line"><a name="l00071"></a><span class="lineno"> >71</span> <span class="comment">// Forward declaration of >Promise.</span></div><div class="line"><a name="l00072"></a><span >class="lineno"> 72</span> <span class="keyword">template</span> ><<span class="keyword">typename</span> T></div><div class="line"><a >name="l00073"></a><span class="lineno"><a class="line" >href="classprocess_1_1Promise.html"> 73</a></span> <span >class="keyword">class </span><a class="code" >href="classprocess_1_1Promise.html">Promise</a>;</div><div class="line"><a >name="l00074"></a><span class="lineno"> 74</span> </div><div >class="line"><a name="l00075"></a><span class="lineno"> >75</span> </div><div class="line"><a name="l00076"></a><span >class="lineno"> 76</span> <span class="comment">// Forward declaration >of WeakFuture.</span></div><div class="line"><a name="l00077"></a><span >class="lineno"> 77</span> <span class="keyword">template</span> <<sp an class="keyword">typename</span> T></div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classprocess_1_1WeakFuture.html"> 78</a></span> <span class="keyword">class </span><a class="code" href="classprocess_1_1WeakFuture.html">WeakFuture</a>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// Forward declaration of Failure.</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">struct </span><a class="code" href="structprocess_1_1Failure.html">Failure</a>;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">struct </span><a class="code" href="structprocess_1_1ErrnoFailure.html">ErrnoFailure</a>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div cla ss="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// Definition of a "shared" future. A future can hold any</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// copy-constructible value. A future is considered "shared" because</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// by default a future can be accessed concurrently.</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">class </span><a class="code" href="classprocess_1_1Future.html">Future</a></div><div class="line"><a name="l00090">< /a><span class="lineno"> 90</span> {</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// Constructs a failed future.</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">static</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a> failed(<span class="keyword">const</span> std::string& message);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="classprocess_1_1Future.html">Future</a>();</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/* implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> T& _t);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(T&& _t);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> U></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> U& u);</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>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> <a class="code" href="structprocess_1_1Failure.html">Failure</a>& failure);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> <a class="code" href="structprocess_1_1ErrnoFailure.html">ErrnoFailure</a>& failure);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& t hat) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<a class="code" href="classprocess_1_1Future.html">Future<T></a>&& that) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.html">Future</a>(<span class="keyword">const</span> <a class="code" href="classTry.html">Try<T></a>& t);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">/*implicit*/</span> <a class="code" href="classprocess_1_1Future.h tml">Future</a>(<span class="keyword">const</span> <a class="code" href="classTry.html">Try</a><<a class="code" href="classprocess_1_1Future.html">Future<T></a>>& t);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  ~<a class="code" href="classprocess_1_1Future.html">Future</a>() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">// Futures are assignable (and copyable). This results in the</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// reference to the previous future data being decremented and a</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class= "comment">// reference to 'that' being incremented.</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="classprocess_1_1Future.html">Future<T></a>& operator=(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& that) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classprocess_1_1Future.html">Future<T></a>& operator=(<a class="code" href="classprocess_1_1Future.html">Future<T></a>&& that) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Comparison operators useful for using futures in collections.</span></div><div class="line"><a name="l 00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">bool</span> <a class="code" href="namespaceprocess.html#aecbdc1b686bf195f0a1ae0cc891b5f7c">operator==</a>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& that) <span class="keyword">const</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">bool</span> <a class="code" href="namespaceprocess.html#ac891ac7e3502ead65abcbc1a5e3874ae">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& that) <span class="keyword">const</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">bool</span> operator<(const Future<T>& that) <span class="keyword">const</span>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </ div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Helpers to get the current state of this future.</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">bool</span> isPending() <span class="keyword">const</span>;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">bool</span> isReady() <span class="keyword">const</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">bool</span> isDiscarded() <span class="keyword">const</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">bool</span> isFailed() <span class="keyword">const</span>;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">bool</span> isAbandoned() <span class= "keyword">const</span>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">bool</span> hasDiscard() <span class="keyword">const</span>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// Discards this future. Returns false if discard has already been</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// called or the future has already completed, i.e., is ready,</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// failed, or discarded. Note that a discard does not terminate any</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// computation but rather acts as a suggestion or indication that</spa n></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// the caller no longer cares about the result of some</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// computation. The callee can decide whether or not to continue the</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// computation on their own (where best practices are to attempt to</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// stop the computation if possible). The callee can discard the</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// computation via Promise::discard which completes a future, at</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comm ent">// which point, Future::isDiscarded is true (and the</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Future::onDiscarded callbacks are executed). Before that point,</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// but after calling Future::discard, only Future::hasDiscard will</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// return true and the Future::onDiscard callbacks will be invoked.</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">bool</span> <a class="code" href="namespaceprocess_1_1internal.html#a58d2ee086b173d21a4fc0550f843dd2e">discard</a>();</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</spa n>  <span class="comment">// Waits for this future to become ready, discarded, or failed.</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">bool</span> <a class="code" href="namespaceprocess_1_1internal.html#a45915c2c6b7aea85b1c9a726158f19fc">await</a>(<span class="keyword">const</span> <a class="code" href="classDuration.html">Duration</a>& duration = <a class="code" href="classSeconds.html">Seconds</a>(-1)) <span class="keyword">const</span>;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// Return the value associated with this future, waits indefinitely</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// until a value gets associated or until the future is discarded.</span></div><div class="line"> <a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">const</span> T& <span class="keyword">get</span>() <span class="keyword">const</span>;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">const</span> T* operator->() <span class="keyword">const</span>;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// Returns the failure message associated with this future.</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">const</span> std::string& failure() <span class="keyword">const</span>;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// Type of the callback functions that can get invoked when the</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// future gets set, fails, or is discarded.</span></div><div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a5120e0d308d767edec44225f5be926e2"> 163</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void()></a> <a class="code" href="classprocess_1_1Future.html#a5120e0d308d767edec44225f5be926e2">AbandonedCallback</a>;</div><div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#afc25a640dcf8680e88f26712a2717d8b"> 164</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void()></a> <a class="code" href="classprocess_1_1Future.html#afc25a640dcf8 680e88f26712a2717d8b">DiscardCallback</a>;</div><div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a10a044e48b430d4f87e9cade748bfe90"> 165</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void(const T&)></a> <a class="code" href="classprocess_1_1Future.html#a10a044e48b430d4f87e9cade748bfe90">ReadyCallback</a>;</div><div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a97e42f6b06e3bda93cdfbed6e8fa9093"> 166</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void(const std::string&)></a> <a class="code" href="classprocess_1_1Future.html#a97e42f6b06e3bda93cdfbed6e8fa9093">FailedCallback</a>;</div><div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="classprocess _1_1Future.html#af451893e5d06180aaeee5c42df0930c1"> 167</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void()></a> <a class="code" href="classprocess_1_1Future.html#af451893e5d06180aaeee5c42df0930c1">DiscardedCallback</a>;</div><div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#accc51795ce8b6c9ab8d62bd2e50b49b2"> 168</a></span>  <span class="keyword">typedef</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<void(const Future<T></a>&)> <a class="code" href="classlambda_1_1CallableOnce.html">AnyCallback</a>;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// Installs callbacks for the specified events and returns a const</span></div><div cl ass="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// reference to 'this' in order to easily support chaining.</span></div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onAbandoned(AbandonedCallback&& callback) <span class="keyword">const</span>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onDiscard(DiscardCallback&& callback) <span class="keyword">const</span>;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onReady(ReadyCallback&& callback) <span class="keyword">const</ span>;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onFailed(FailedCallback&& callback) <span class="keyword">const</span>;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onDiscarded(DiscardedCallback&& callback) <span class="keyword">const</span>;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onAny(<a class="code" href="classlambda_1_1CallableOnce.html">AnyCallback</a>&& callback) <span class="keyword">const</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="l ine"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// TODO(benh): Add onReady, onFailed, onAny for _Deferred<F> where F</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// is not expected.</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00183"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a92429370a26a7c933ddc12866101f8ce"> 183</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a92429370a26a7c933ddc12866101f8ce">onAbandoned</a>(<a class="code" href="structprocess_1_1__Deferred.h tml">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> onAbandoned(</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  std::move(deferred).<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>()>());</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00 190"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#aeea5927a465c7b6e7f0f8b91f1e65461"> 190</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#aeea5927a465c7b6e7f0f8b91f1e65461">onDiscard</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">return</span> onDiscard(</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  std::move(deferred).<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">v oid</span>()>());</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a4492bc5e02252a90087bcda3a9113f66"> 197</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a4492bc5e02252a90087bcda3a9113f66">onReady</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword"> </span>{</d iv><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> onReady(</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  std::move(deferred).<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> T&)>());</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00204"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a8af6d072946de82f639c488872ab4db8"> 204</a></span>  <span class="keyword">con st</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a8af6d072946de82f639c488872ab4db8">onFailed</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> onFailed(std::move(deferred)</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  .<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> std::string&)>());</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div><d iv 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="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a9ed881404620ba5d7a145b2f9c2be008"> 211</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a9ed881404620ba5d7a145b2f9c2be008">onDiscarded</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow"> return</span> onDiscarded(</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  std::move(deferred).<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>()>());</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#ab753c0730005edaef998bf8982f67e2a"> 218</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#ab753c073000 5edaef998bf8982f67e2a">onAny</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& deferred)<span class="keyword"> const</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> onAny(std::move(deferred)</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  .<span class="keyword">operator</span> <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>&)>());</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="l ine"><a name="l00224"></a><span class="lineno"> 224</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// We use the 'Prefer' and 'LessPrefer' structs as a way to prefer</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="comment">// one function over the other when doing SFINAE for the 'onReady',</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">// 'onFailed', 'onAny', and 'then' functions. In each of these cases</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// we prefer calling the version of the functor that takes in an</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">// argument (i .e., 'const T&' for 'onReady' and 'then' and 'const</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// std::string&' for 'onFailed'), but we allow functors that don't</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">// care about the argument. We don't need to do this for</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// 'onDiscard', 'onDiscarded' or 'onAbandoned' because they don't</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// take an argument.</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">struct </span>LessPrefer {};</div><div class="line"><a name="l00235"></a><span c lass="lineno"> 235</span>  <span class="keyword">struct </span>Prefer : LessPrefer {};</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">template <typename F, typename = typename result_of<F(const T&)>::type</a>></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onReady(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, Prefer)<span class="keyword"> const</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> onReady(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> T&)>(</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, <span class="keyword">const</span> T& t) {</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4 ">f</a>)(t);</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  },</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  lambda::_1)));</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="comment">// This is the less preferred `onReady`, we prefer the `onReady` method which</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// has `f` taking a `const T&` parameter. Unfortunately, to complicate</span></div><div class="lin e"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// matters, if `F` is the result of a `std::bind` expression we need to SFINAE</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">// out this version of `onReady` and force the use of the preferred `onReady`</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="comment">// (which works because `std::bind` will just ignore the `const T&` argument).</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// This is necessary because Visual Studio 2015 doesn't support using the</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// `std::bind` call operator with `result_of` as it's technically not a</span></div><div class="line"><a name="l00256"></a><span cla ss="lineno"> 256</span>  <span class="comment">// requirement by the C++ standard.</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keyword">typename</span> = <span class="keyword">typename</span> result_of<<span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  !<a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::is_bind_expression<typename std::decay<F>::type</a>>::value,</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  F><a class="code" href="namespacemesos_1_1 internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>()><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onReady(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, LessPrefer)<span class="keyword"> const</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">return</span> onReady(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> T&)>(</div><div class="line"><a name="l00265"></a><s pan class="lineno"> 265</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, <span class="keyword">const</span> T&) {</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  },</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  std::forward<F>(<a class="code" href="namespaceprocess.h tml#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  lambda::_1)));</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> </div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">template <typename F, typename = typename result_of<F(const std::string&)>::type</a>> <span class="comment">// NOLINT(whitespace/line_length)</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onFailed(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, Prefer)<span class="k eyword"> const</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">return</span> onFailed(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> std::string&)>(</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</ a>, <span class="keyword">const</span> std::string& message) {</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)(message);</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  },</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  lambda::_1)));</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="comment">// Refer to the less preferred versio n of `onReady` for why these SFINAE</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// conditions are necessary.</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">typename</span> = <span class="keyword">typename</span> result_of<<span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  !<a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::is_bind_expression<typename std::decay<F>::type</a>>::value,</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  F><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>()><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onFailed(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, LessPrefer)<span class="keyword"> const</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> onFailed(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<sp an class="keyword">const</span> std::string&)>(</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, <span class="keyword">const</span> std::string&) <span class="keyword">mutable</span> {</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  },</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  lambda::_1)));</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> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F, <span class="keyword">typename</span> = <span class="keyword">typename</span> result_of<F(const Future<T>&)>::type> <span class="comment">// NOLINT(whitespace/line_length)</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">const</span> <a class="code" href="classprocess_ 1_1Future.html">Future<T></a>& onAny(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, Prefer)<span class="keyword"> const</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">return</span> onAny(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>&)>(</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  [](<span class="keyword">typename</s pan> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& future) {</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)(future);</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  },</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  lambda::_1)));</div><div class="line"><a name="l003 13"></a><span class="lineno"> 313</span>  }</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// Refer to the less preferred version of `onReady` for why these SFINAE</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// conditions are necessary.</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">typename</span> = <span class="keyword">typename</span> result_of<<span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l0032 0"></a><span class="lineno"> 320</span>  !<a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::is_bind_expression<typename std::decay<F>::type</a>>::value,</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  F><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>()><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& onAny(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, LessPrefer)<span class="keyword"> const</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keywo rd"> </span>{</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">return</span> onAny(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>(<span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>&)>(</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, <span class="keyword">const</span> <a class="code" href="classp rocess_1_1Future.html">Future<T></a>&) {</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  },</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>),</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  lambda::_1)));</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  }</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00334"></a><sp an class="lineno"> 334</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00335"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a613272cbaf42a527d3473b2eb1c70e5d"> 335</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a613272cbaf42a527d3473b2eb1c70e5d">onAbandoned</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> onAbandoned(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="ke ywordtype">void</span>()>(</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>) {</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</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>  std::forward<F>(<a clas s="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>))));</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="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00346"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a907cb66509cf2e07bff8cf919507f745"> 346</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a907cb66509cf2e07bff8cf919507f745">onDiscard</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00347"></a><span class ="lineno"> 347</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">return</span> onDiscard(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>()>(</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>) {</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  std::move(<a class="code " href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  },</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>))));</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> </div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00357"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#ad002735b3459454f81f77bc9604903ba"> 357</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T> </a>& <a class="code" href="classprocess_1_1Future.html#ad002735b3459454f81f77bc9604903ba">onReady</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">return</span> onReady(std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>), Prefer());</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>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00363"></a> <span class="lineno"><a class="line" href="classprocess_1_1Future.html#a8c5395e292096cc9e91047ab6958564a"> 363</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a8c5395e292096cc9e91047ab6958564a">onFailed</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">return</span> onFailed(std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>), Prefer());</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</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>  <span class="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00369"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a3630c865b86819b18907a8f60c948add"> 369</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a3630c865b86819b18907a8f60c948add">onDiscarded</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">return</span> onDiscarded(<a class="code" href="classlambda_ 1_1CallableOnce.html">lambda::CallableOnce</a><<span class="keywordtype">void</span>()>(</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  [](<span class="keyword">typename</span> <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::decay<F>::type</a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>) {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)();</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  },</div><div class="line"><a name="l00376"></a><span class="li neno"> 376</span>  std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>))));</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  }</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="keyword">template</span> <<span class="keyword">typename</span> F></div><div class="line"><a name="l00380"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a79919e2b8fded40f30f720c521c98ded"> 380</a></span>  <span class="keyword">const</span> <a class="code" href="classprocess_1_1Future.html">Future<T></a>& <a class="code" href="classprocess_1_1Future.html#a79919e2b8fded40f30f720c521c98ded">onAny</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</ span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">return</span> onAny(std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>), Prefer());</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> </div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// Installs callbacks that get executed when this future is ready</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// and associates the result of the callback with the future that is</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <sp an class="comment">// returned to the caller (which may be of a different type).</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> X></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<a class="code" href="classprocess_1_1Future.html">Future<X></a>(<span class="keyword">const</span> T&)> <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>) <span class="keyword">const</span>;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div><div class="line"><a name="l00391"></a><span class="lineno"> 391</sp an>  <span class="keyword">template</span> <<span class="keyword">typename</span> X></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><X(<span class="keyword">const</span> T&)> <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>) <span class="keyword">const</span>;</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="keyword">template</span> <<span class="keyword">typename</span> X></div><div class="line"><a name="l00395"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a00e8cb9299d48b5b59 fba301894b019f"> 395</a></span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="classprocess_1_1Future.html#a00e8cb9299d48b5b59fba301894b019f">then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<a class="code" href="classprocess_1_1Future.html">Future<X></a>()> <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><<a class="code" href="classprocess_1_1Future.html">Future<X></a>(<span class= "keyword">const</span> T&)>(</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>))));</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> X></div><div class="line"><a name="l00402"></a><span class="lineno"><a class="line" href="classprocess_1_1Future.html#a5fb522d745a7f4f9c1b96fa9dfde0815"> 402</a></span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="classprocess_1_1Future.html#a5fb522d745a7f4f9c1b96fa9dfde0815"> then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><X()> <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)<span class="keyword"> const</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce</a><X(<span class="keyword">const</span> T&)>(</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="namespacelambda.html#a67028306e65f852e64b8a4b7715803d2">lambda::partial</a>(std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>))));</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  }</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keyword">typename</span> X =</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keyword">typename</span> <a class="code" href="structprocess_1_1internal_1_1unwrap.html">internal::unwrap<typename result_of<F(const T&)>::type</a>><a class="code" href="namespacemesos_1_1internal_1_1fs.ht ml#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, Prefer)<span class="keyword"> const</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// note the then<X> is necessary to not have an infinite loop with</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// then(F&& f)</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">return</span> then<X>(</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>).operator <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<Future<X></a>(<span class="keyword">const</span> T&)>());</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="comment">// Refer to the less preferred version of `onReady` for why these SFINAE</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="comment">// conditions are necessary.</span></div><div class="line"><a name="l 00423"></a><span class="lineno"> 423</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keyword">typename</span> X = <span class="keyword">typename</span> <a class="code" href="structprocess_1_1internal_1_1unwrap.html">internal::unwrap</a><</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keyword">typename</span> result_of<<span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  !<a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::is_bind_expression<typename std::decay<F>::type</a>>::value,</div><div class="line"><a name="l00428"></ a><span class="lineno"> 428</span>  F><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>()><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(<a class="code" href="structprocess_1_1__Deferred.html">_Deferred<F></a>&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, LessPrefer)<span class="keyword"> const</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="keyword"> </span>{</div><div cla ss="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">return</span> then<X>(std::move(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>).operator <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<Future<X></a>()>());</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  }</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> </div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">template <typename F, typename X = typename internal::unwrap<typename result_of<F(const T&)>::type</a>><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>> <span class="comment">// NOLINT(whitespace/line_length)</span></div><di v class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, Prefer)<span class="keyword"> const</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">return</span> then<X>(</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<Future<X></a>(<span class="keyword">const</span> T&)>(std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)));</ 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="comment">// Refer to the less preferred version of `onReady` for why these SFINAE</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">// conditions are necessary.</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keyword">template</span> <</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keyword">typename</span> F,</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keyword">typename</span> X = <span class="keyword">typename</span> <a class="code" href="structprocess_1_1internal_1_1unwrap.html">intern al::unwrap</a><</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">typename</span> result_of<<span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  !<a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">std::is_bind_expression<typename std::decay<F>::type</a>>::value,</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  F><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>()><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>><a class="code" href="namespacemesos_1_1internal_1_1fs.html#a2343e2642db514496ba8380776487fba">::type</a>></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</sp an>  <a class="code" href="classprocess_1_1Future.html">Future<X></a> <a class="code" href="namespaceprocess_1_1internal.html#a7885011cf6470b707294a6ef4ec7a0a6">then</a>(F&& <a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>, LessPrefer)<span class="keyword"> const</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">return</span> then<X>(<a class="code" href="classlambda_1_1CallableOnce.html">lambda::CallableOnce<Future<X></a>()>(std::forward<F>(<a class="code" href="namespaceprocess.html#a62d5333e8ec1817c249cf83e15d568b4">f</a>)));</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  }</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// NOTE: Ther
<TRUNCATED>
