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<li class="navelem"><a class="el" href="dir_3c80010775d22af2067790ecc9cdcf9d.html">librf</a></li><li class="navelem"><a class="el" href="dir_54ae0e78d997f6903cdf0996223d047f.html">src</a></li> </ul>
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<div class="title">mutex_v1.h</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>  </div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="keyword">namespace </span>resumef</div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> {</div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>  <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  {</div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>  <span class="keyword">struct </span>mutex_impl;</div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  typedef ::resumef::detail::_awaker<mutex_impl> mutex_awaker;</div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  <span class="keyword">typedef</span> std::shared_ptr<mutex_awaker> mutex_awaker_ptr;</div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  <span class="keyword">struct </span>mutex_impl : <span class="keyword">public</span> std::enable_shared_from_this<mutex_impl></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  {</div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <span class="comment">//typedef spinlock lock_type;</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="keyword">typedef</span> std::recursive_mutex lock_type;</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  std::list<mutex_awaker_ptr> _awakes;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  mutex_awaker_ptr _owner;</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  lock_type _lock;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  mutex_impl();</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="comment">//如果已经触发了awaker,则返回true</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordtype">bool</span> lock_(<span class="keyword">const</span> mutex_awaker_ptr& awaker);</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">bool</span> try_lock_(<span class="keyword">const</span> mutex_awaker_ptr& awaker);</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordtype">void</span> unlock();</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">template</span><<span class="keyword">class</span> callee_t, <span class="keyword">class</span> dummy_t = std::enable_if<!std::is_same<std::remove_cv_t<callee_t>, mutex_awaker_ptr>::value>></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  decltype(<span class="keyword">auto</span>) lock(callee_t&& awaker, dummy_t* dummy_ = <span class="keywordtype">nullptr</span>)</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  (void)dummy_;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> lock_(std::make_shared<mutex_awaker>(std::forward<callee_t>(awaker)));</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  mutex_impl(<span class="keyword">const</span> mutex_impl&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  mutex_impl(mutex_impl&&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  mutex_impl& operator = (<span class="keyword">const</span> mutex_impl&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  mutex_impl& operator = (mutex_impl&&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  };</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">namespace </span>mutex_v1</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">struct </span>mutex_t</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">typedef</span> std::shared_ptr<detail::mutex_impl> lock_impl_ptr;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">typedef</span> std::weak_ptr<detail::mutex_impl> lock_impl_wptr;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">typedef</span> std::chrono::system_clock clock_type;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  lock_impl_ptr _locker;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  mutex_t();</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">void</span> unlock()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  _locker->unlock();</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  future_t<bool> lock() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">bool</span> try_lock() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">/*</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> template<class _Rep, class _Period></span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> awaitable_t<bool></span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> try_lock_for(const std::chrono::duration<_Rep, _Period> & dt) const</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> {</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> return try_lock_for_(std::chrono::duration_cast<clock_type::duration>(dt));</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> }</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> template<class _Clock, class _Duration></span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> awaitable_t<bool></span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> try_lock_until(const std::chrono::time_point<_Clock, _Duration> & tp) const</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> {</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> return try_lock_until_(std::chrono::time_point_cast<clock_type::duration>(tp));</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> }</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  mutex_t(<span class="keyword">const</span> mutex_t&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  mutex_t(mutex_t&&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  mutex_t& operator = (<span class="keyword">const</span> mutex_t&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  mutex_t& operator = (mutex_t&&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">inline</span> future_t<bool> try_lock_for_(<span class="keyword">const</span> clock_type::duration& dt)<span class="keyword"> const</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> try_lock_until_(clock_type::now() + dt);</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  future_t<bool> try_lock_until_(<span class="keyword">const</span> clock_type::time_point& tp) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  };</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> }</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div>
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