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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2017 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/app/job_manager.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "packager/app/libcrypto_threading.h"</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/media/chunking/sync_point_queue.h"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/media/origin/origin_handler.h"</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="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>media {</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> Job::Job(<span class="keyword">const</span> std::string& name, std::shared_ptr<OriginHandler> work)</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  : SimpleThread(name),</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  work_(<a class="code" href="../../d8/dcc/namespacestd.html">std</a>::move(work)),</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  wait_(<a class="code" href="../../d2/dc5/namespacebase.html">base</a>::WaitableEvent::ResetPolicy::MANUAL,</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <a class="code" href="../../d2/dc5/namespacebase.html">base</a>::WaitableEvent::InitialState::NOT_SIGNALED) {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  DCHECK(work_);</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> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">void</span> Job::Cancel() {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  work_->Cancel();</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> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keywordtype">void</span> Job::Run() {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  status_ = work_->Run();</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  wait_.Signal();</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> JobManager::JobManager(std::unique_ptr<SyncPointQueue> sync_points)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  : sync_points_(<a class="code" href="../../d8/dcc/namespacestd.html">std</a>::move(sync_points)) {}</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keywordtype">void</span> JobManager::Add(<span class="keyword">const</span> std::string& name,</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  std::shared_ptr<OriginHandler> handler) {</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">// Stores Job entries for delayed construction of Job objects, to avoid</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="comment">// setting up SimpleThread until we know all workers can be initialized</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// successfully.</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  job_entries_.push_back({name, std::move(handler)});</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> Status JobManager::InitializeJobs() {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  Status status;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> JobEntry& job_entry : job_entries_)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  status.Update(job_entry.worker->Initialize());</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (!status.ok())</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> status;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// Create Job objects after successfully initialized all workers.</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> JobEntry& job_entry : job_entries_)</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  jobs_.emplace_back(<span class="keyword">new</span> Job(job_entry.name, std::move(job_entry.worker)));</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> status;</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> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> Status JobManager::RunJobs() {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// We need to store the jobs and the waits separately in order to use the</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">// |WaitMany| function. |WaitMany| takes an array of WaitableEvents but we</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// need to access the jobs in order to join the thread and check the status.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// The indexes needs to be check in sync or else we won't be able to relate a</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// WaitableEvent back to the job.</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  std::vector<Job*> active_jobs;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  std::vector<base::WaitableEvent*> active_waits;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Start every job and add it to the active jobs list so that we can wait</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// on each one.</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& job : jobs_) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  job->Start();</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>  active_jobs.push_back(job.get());</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  active_waits.push_back(job->wait());</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</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>  <span class="comment">// Wait for all jobs to complete or an error occurs.</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  Status status;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">while</span> (status.ok() && active_jobs.size()) {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// Wait for an event to finish and then update our status so that we can</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// quit if something has gone wrong.</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> done =</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  base::WaitableEvent::WaitMany(active_waits.data(), active_waits.size());</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  Job* job = active_jobs[done];</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  job->Join();</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  status.Update(job->status());</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// Remove the job and the wait from our tracking.</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  active_jobs.erase(active_jobs.begin() + done);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  active_waits.erase(active_waits.begin() + done);</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> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// If the main loop has exited and there are still jobs running,</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// we need to cancel them and clean-up.</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (sync_points_)</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  sync_points_->Cancel();</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& job : active_jobs) {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  job->Cancel();</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& job : active_jobs) {</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  job->Join();</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> status;</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> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">void</span> JobManager::CancelJobs() {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (sync_points_)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  sync_points_->Cancel();</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& job : jobs_) {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  job->Cancel();</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> } <span class="comment">// namespace media</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> } <span class="comment">// namespace shaka</span></div><div class="ttc" id="namespacestd_html"><div class="ttname"><a href="../../d8/dcc/namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
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<div class="ttc" id="namespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="namespacebase_html"><div class="ttname"><a href="../../d2/dc5/namespacebase.html">base</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d10/muxer__factory_8h_source.html#l00016">muxer_factory.h:16</a></div></div>
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