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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">spinlock.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="comment">//用于内部实现的循环锁</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="preprocessor">#pragma once</span></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>resumef</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="preprocessor">#if defined(RESUMEF_USE_CUSTOM_SPINLOCK)</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  <span class="keyword">using</span> spinlock = RESUMEF_USE_CUSTOM_SPINLOCK;</div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#else</span></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="l00014"></a><span class="lineno"><a class="line" href="structresumef_1_1spinlock.html"> 14</a></span>  <span class="keyword">struct </span><a class="code" href="structresumef_1_1spinlock.html">spinlock</a></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> MAX_ACTIVE_SPIN = 4000;</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> MAX_YIELD_SPIN = 8000;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FREE_VALUE = 0;</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> LOCKED_VALUE = 1;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  std::atomic<int> lck;</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#if _DEBUG</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  std::thread::id owner_thread_id;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="structresumef_1_1spinlock.html#a32730a90789147297f9777fe866a224f"> 29</a></span>  <a class="code" href="structresumef_1_1spinlock.html#a32730a90789147297f9777fe866a224f">spinlock</a>() noexcept</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>  lck = FREE_VALUE;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  }</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="l00037"></a><span class="lineno"><a class="line" href="structresumef_1_1spinlock.html#ae313002e0db9c20b32d386e4eb91c372"> 37</a></span>  <span class="keywordtype">void</span> <a class="code" href="structresumef_1_1spinlock.html#ae313002e0db9c20b32d386e4eb91c372">lock</a>() noexcept</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">int</span> val = FREE_VALUE;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">if</span> (!lck.compare_exchange_weak(val, LOCKED_VALUE, std::memory_order_acq_rel))</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> <span class="preprocessor">#if _DEBUG</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">//诊断错误的用法：进行了递归锁调用</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  assert(owner_thread_id != std::this_thread::get_id());</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></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="keywordtype">size_t</span> spinCount = 0;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">auto</span> dt = std::chrono::milliseconds{ 1 };</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">do</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  {</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">while</span> (lck.load(std::memory_order_relaxed) != FREE_VALUE)</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">if</span> (spinCount < MAX_ACTIVE_SPIN)</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>  ++spinCount;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (spinCount < MAX_YIELD_SPIN)</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>  ++spinCount;</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  std::this_thread::yield();</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">else</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>  std::this_thread::sleep_for(dt);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  dt = (std::min)(std::chrono::milliseconds{ 128 }, dt * 2);</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  val = FREE_VALUE;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  } <span class="keywordflow">while</span> (!lck.compare_exchange_weak(val, LOCKED_VALUE, std::memory_order_acq_rel));</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#if _DEBUG</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  owner_thread_id = std::this_thread::get_id();</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
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<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="structresumef_1_1spinlock.html#a62a6841e933ee7845a9ba42765a1b5e3"> 81</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structresumef_1_1spinlock.html#a62a6841e933ee7845a9ba42765a1b5e3">try_lock</a>() noexcept</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  {</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> val = FREE_VALUE;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">bool</span> ret = lck.compare_exchange_strong(val, LOCKED_VALUE, std::memory_order_acq_rel);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#if _DEBUG</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (ret) owner_thread_id = std::this_thread::get_id();</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> ret;</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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<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="structresumef_1_1spinlock.html#af6d49dc277c0719e282a9387ed3c35e9"> 96</a></span>  <span class="keywordtype">void</span> <a class="code" href="structresumef_1_1spinlock.html#af6d49dc277c0719e282a9387ed3c35e9">unlock</a>() noexcept</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#if _DEBUG</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  owner_thread_id = std::thread::id();</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  lck.store(FREE_VALUE, std::memory_order_release);</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  };</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  </div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor">#ifndef DOXYGEN_SKIP_PROPERTY</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Ty, <span class="keyword">class</span> _Cont = std::vector<_Ty>></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">struct </span>_LockVectorAssembleT</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  _Cont& _Lks;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  _LockVectorAssembleT(_Cont& _LkN)</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  : _Lks(_LkN)</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  {}</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">size_t</span> size()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">return</span> _Lks.size();</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  _Ty& operator[](<span class="keywordtype">int</span> _Idx)</div>
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||
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div>
|
||
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> _Lks[_Idx];</div>
|
||
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|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
|
||
|
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">void</span> _Lock_ref(_Ty& _LkN)<span class="keyword"> const</span></div>
|
||
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword"> </span>{</div>
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||
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  _LkN.lock();</div>
|
||
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|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div>
|
||
|
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">bool</span> _Try_lock_ref(_Ty& _LkN)<span class="keyword"> const</span></div>
|
||
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword"> </span>{</div>
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||
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> _LkN.try_lock();</div>
|
||
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
|
||
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">void</span> _Unlock_ref(_Ty& _LkN)<span class="keyword"> const</span></div>
|
||
|
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword"> </span>{</div>
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||
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  _LkN.unlock();</div>
|
||
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|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
|
||
|
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">void</span> _Yield()<span class="keyword"> const</span></div>
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||
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword"> </span>{</div>
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||
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  std::this_thread::yield();</div>
|
||
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
|
||
|
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">void</span> _ReturnValue() <span class="keyword">const</span>;</div>
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||
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">template</span><<span class="keyword">class</span> U></div>
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||
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  U _ReturnValue(U v) <span class="keyword">const</span>;</div>
|
||
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  };</div>
|
||
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
|
||
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Ty, <span class="keyword">class</span> _Cont></div>
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||
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">struct </span>_LockVectorAssembleT<std::reference_wrapper<_Ty>, _Cont></div>
|
||
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  {</div>
|
||
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">private</span>:</div>
|
||
|
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  _Cont& _Lks;</div>
|
||
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">public</span>:</div>
|
||
|
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  _LockVectorAssembleT(_Cont& _LkN)</div>
|
||
|
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  : _Lks(_LkN)</div>
|
||
|
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {}</div>
|
||
|
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">size_t</span> size()<span class="keyword"> const</span></div>
|
||
|
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword"> </span>{</div>
|
||
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> _Lks.size();</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>  std::reference_wrapper<_Ty> operator[](<span class="keywordtype">int</span> _Idx)</div>
|
||
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  {</div>
|
||
|
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> _Lks[_Idx];</div>
|
||
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div>
|
||
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">void</span> _Lock_ref(std::reference_wrapper<_Ty> _LkN)<span class="keyword"> const</span></div>
|
||
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keyword"> </span>{</div>
|
||
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  _LkN.get().lock();</div>
|
||
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
|
||
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">void</span> _Unlock_ref(std::reference_wrapper<_Ty> _LkN)<span class="keyword"> const</span></div>
|
||
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keyword"> </span>{</div>
|
||
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  _LkN.get().unlock();</div>
|
||
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div>
|
||
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordtype">bool</span> _Try_lock_ref(std::reference_wrapper<_Ty> _LkN)<span class="keyword"> const</span></div>
|
||
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="keyword"> </span>{</div>
|
||
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> _LkN.get().try_lock();</div>
|
||
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
|
||
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">void</span> _Yield()<span class="keyword"> const</span></div>
|
||
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="keyword"> </span>{</div>
|
||
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  std::this_thread::yield();</div>
|
||
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
|
||
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">void</span> _ReturnValue() <span class="keyword">const</span>;</div>
|
||
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">template</span><<span class="keyword">class</span> U></div>
|
||
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  U _ReturnValue(U v) <span class="keyword">const</span>;</div>
|
||
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  };</div>
|
||
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  </div>
|
||
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="preprocessor">#define LOCK_ASSEMBLE_NAME(fnName) scoped_lock_range_##fnName</span></div>
|
||
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="preprocessor">#define LOCK_ASSEMBLE_AWAIT(a) (a)</span></div>
|
||
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="preprocessor">#define LOCK_ASSEMBLE_RETURN(a) return (a)</span></div>
|
||
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="preprocessor">#include "without_deadlock_assemble.inl"</span></div>
|
||
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="preprocessor">#undef LOCK_ASSEMBLE_NAME</span></div>
|
||
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="preprocessor">#undef LOCK_ASSEMBLE_AWAIT</span></div>
|
||
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor">#undef LOCK_ASSEMBLE_RETURN</span></div>
|
||
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
|
||
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor">#endif //DOXYGEN_SKIP_PROPERTY</span></div>
|
||
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
|
||
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Ty, <span class="keyword">class</span> _Cont = std::vector<_Ty>, <span class="keyword">class</span> _Assemble = detail::_LockVectorAssembleT<_Ty, _Cont>></div>
|
||
|
|
<div class="line"><a name="l00203"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html"> 203</a></span>  <span class="keyword">class </span><a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a></div>
|
||
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  {</div>
|
||
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">public</span>:</div>
|
||
|
|
<div class="line"><a name="l00209"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#a3779f0030948ad54e4f97c8e73afa44d"> 209</a></span>  <span class="keyword">explicit</span> <a class="code" href="classresumef_1_1batch__lock__t.html#a3779f0030948ad54e4f97c8e73afa44d">batch_lock_t</a>(_Cont& locks_)</div>
|
||
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  : _LkN(&locks_)</div>
|
||
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  , _LA(*_LkN)</div>
|
||
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  {</div>
|
||
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  detail::scoped_lock_range_lock_impl::_Lock_range(_LA);</div>
|
||
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
|
||
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  </div>
|
||
|
|
<div class="line"><a name="l00219"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#af46b0d1ba6494e2955660271b190a99a"> 219</a></span>  <span class="keyword">explicit</span> <a class="code" href="classresumef_1_1batch__lock__t.html#af46b0d1ba6494e2955660271b190a99a">batch_lock_t</a>(_Cont& locks_, _Assemble& la_)</div>
|
||
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  : _LkN(&locks_)</div>
|
||
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  , _LA(la_)</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>  detail::scoped_lock_range_lock_impl::_Lock_range(_LA);</div>
|
||
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div>
|
||
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
|
||
|
|
<div class="line"><a name="l00229"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#a2293d0f5d68f335ed8dd0bb6e89321a6"> 229</a></span>  <span class="keyword">explicit</span> <a class="code" href="classresumef_1_1batch__lock__t.html#a2293d0f5d68f335ed8dd0bb6e89321a6">batch_lock_t</a>(std::adopt_lock_t, _Cont& locks_)</div>
|
||
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  : _LkN(&locks_)</div>
|
||
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  , _LA(*_LkN)</div>
|
||
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  { <span class="comment">// construct but don't lock</span></div>
|
||
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div>
|
||
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  </div>
|
||
|
|
<div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#abf8d154d25e3b66eb308750052fb660e"> 238</a></span>  <span class="keyword">explicit</span> <a class="code" href="classresumef_1_1batch__lock__t.html#abf8d154d25e3b66eb308750052fb660e">batch_lock_t</a>(std::adopt_lock_t, _Cont& locks_, _Assemble& la_)</div>
|
||
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  : _LkN(&locks_)</div>
|
||
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  , _LA(la_)</div>
|
||
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  { <span class="comment">// construct but don't lock</span></div>
|
||
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div>
|
||
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  </div>
|
||
|
|
<div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#a661dad263c32b25b6bcc92c0d7b73830"> 247</a></span>  <a class="code" href="classresumef_1_1batch__lock__t.html#a661dad263c32b25b6bcc92c0d7b73830">~batch_lock_t</a>() noexcept</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="keywordflow">if</span> (_LkN != <span class="keyword">nullptr</span>)</div>
|
||
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  detail::scoped_lock_range_lock_impl::_Unlock_locks(0, (<span class="keywordtype">int</span>)_LA.size(), _LA);</div>
|
||
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div>
|
||
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  </div>
|
||
|
|
<div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#abc72b35a9eef1bd6c39955d63cc8ce9c"> 256</a></span>  <span class="keywordtype">void</span> <a class="code" href="classresumef_1_1batch__lock__t.html#abc72b35a9eef1bd6c39955d63cc8ce9c">unlock</a>()</div>
|
||
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  {</div>
|
||
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">if</span> (_LkN != <span class="keyword">nullptr</span>)</div>
|
||
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  {</div>
|
||
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  _LkN = <span class="keyword">nullptr</span>;</div>
|
||
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  detail::scoped_lock_range_lock_impl::_Unlock_locks(0, (<span class="keywordtype">int</span>)_LA.size(), _LA);</div>
|
||
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
|
||
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
|
||
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  </div>
|
||
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="classresumef_1_1batch__lock__t.html#a3779f0030948ad54e4f97c8e73afa44d">batch_lock_t</a>(<span class="keyword">const</span> <a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>&) = <span class="keyword">delete</span>;</div>
|
||
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  </div>
|
||
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>& <a class="code" href="classresumef_1_1batch__lock__t.html#aabbfeb513ac907b9c8caf6fda9a356d4">operator=</a>(<span class="keyword">const</span> <a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>&) = <span class="keyword">delete</span>;</div>
|
||
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  </div>
|
||
|
|
<div class="line"><a name="l00278"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#a820544949fcf42d08759f5f29686cc9c"> 278</a></span>  <a class="code" href="classresumef_1_1batch__lock__t.html#a820544949fcf42d08759f5f29686cc9c">batch_lock_t</a>(<a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>&& _Right)</div>
|
||
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  : _LkN(_Right._LkN)</div>
|
||
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  , _LA(std::move(_Right._LA))</div>
|
||
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  {</div>
|
||
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  _Right._LkN = <span class="keyword">nullptr</span>;</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>
|
||
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<div class="line"><a name="l00288"></a><span class="lineno"><a class="line" href="classresumef_1_1batch__lock__t.html#a057618d5a806ffe6fd106f851082f12e"> 288</a></span>  <a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>& <a class="code" href="classresumef_1_1batch__lock__t.html#a057618d5a806ffe6fd106f851082f12e">operator=</a>(<a class="code" href="classresumef_1_1batch__lock__t.html">batch_lock_t</a>&& _Right)</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  {</div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> != &_Right)</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  _LkN = _Right._LkN;</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  _Right._LkN = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  </div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  _LA = std::move(_Right._LA);</div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  }</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  }</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  _Cont* _LkN;</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  _Assemble _LA;</div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  };</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> }</div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_a2293d0f5d68f335ed8dd0bb6e89321a6"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#a2293d0f5d68f335ed8dd0bb6e89321a6">resumef::batch_lock_t::batch_lock_t</a></div><div class="ttdeci">batch_lock_t(std::adopt_lock_t, _Cont &locks_)</div><div class="ttdoc">通过锁容器构造，容器里的锁已经全部获得。</div><div class="ttdef"><b>Definition:</b> spinlock.h:229</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_a820544949fcf42d08759f5f29686cc9c"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#a820544949fcf42d08759f5f29686cc9c">resumef::batch_lock_t::batch_lock_t</a></div><div class="ttdeci">batch_lock_t(batch_lock_t &&_Right)</div><div class="ttdoc">支持移动构造。</div><div class="ttdef"><b>Definition:</b> spinlock.h:278</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_a661dad263c32b25b6bcc92c0d7b73830"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#a661dad263c32b25b6bcc92c0d7b73830">resumef::batch_lock_t::~batch_lock_t</a></div><div class="ttdeci">~batch_lock_t() noexcept</div><div class="ttdoc">析构函数里，释放容器里的锁。</div><div class="ttdef"><b>Definition:</b> spinlock.h:247</div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html_a32730a90789147297f9777fe866a224f"><div class="ttname"><a href="structresumef_1_1spinlock.html#a32730a90789147297f9777fe866a224f">resumef::spinlock::spinlock</a></div><div class="ttdeci">spinlock() noexcept</div><div class="ttdoc">初始为未加锁。</div><div class="ttdef"><b>Definition:</b> spinlock.h:29</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_aabbfeb513ac907b9c8caf6fda9a356d4"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#aabbfeb513ac907b9c8caf6fda9a356d4">resumef::batch_lock_t::operator=</a></div><div class="ttdeci">batch_lock_t & operator=(const batch_lock_t &)=delete</div><div class="ttdoc">不支持拷贝赋值。</div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html_af6d49dc277c0719e282a9387ed3c35e9"><div class="ttname"><a href="structresumef_1_1spinlock.html#af6d49dc277c0719e282a9387ed3c35e9">resumef::spinlock::unlock</a></div><div class="ttdeci">void unlock() noexcept</div><div class="ttdoc">释放锁。</div><div class="ttdef"><b>Definition:</b> spinlock.h:96</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_a3779f0030948ad54e4f97c8e73afa44d"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#a3779f0030948ad54e4f97c8e73afa44d">resumef::batch_lock_t::batch_lock_t</a></div><div class="ttdeci">batch_lock_t(_Cont &locks_)</div><div class="ttdoc">通过锁容器构造，并立刻应用加锁算法。</div><div class="ttdef"><b>Definition:</b> spinlock.h:209</div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html_ae313002e0db9c20b32d386e4eb91c372"><div class="ttname"><a href="structresumef_1_1spinlock.html#ae313002e0db9c20b32d386e4eb91c372">resumef::spinlock::lock</a></div><div class="ttdeci">void lock() noexcept</div><div class="ttdoc">获得锁。会一直阻塞线程直到获得锁。</div><div class="ttdef"><b>Definition:</b> spinlock.h:37</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html">resumef::batch_lock_t</a></div><div class="ttdoc">无死锁的批量枷锁。</div><div class="ttdef"><b>Definition:</b> spinlock.h:203</div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html_a62a6841e933ee7845a9ba42765a1b5e3"><div class="ttname"><a href="structresumef_1_1spinlock.html#a62a6841e933ee7845a9ba42765a1b5e3">resumef::spinlock::try_lock</a></div><div class="ttdeci">bool try_lock() noexcept</div><div class="ttdoc">尝试获得锁一次。</div><div class="ttdef"><b>Definition:</b> spinlock.h:81</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_af46b0d1ba6494e2955660271b190a99a"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#af46b0d1ba6494e2955660271b190a99a">resumef::batch_lock_t::batch_lock_t</a></div><div class="ttdeci">batch_lock_t(_Cont &locks_, _Assemble &la_)</div><div class="ttdoc">通过锁容器和锁集合构造，并立刻应用加锁算法。</div><div class="ttdef"><b>Definition:</b> spinlock.h:219</div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html"><div class="ttname"><a href="structresumef_1_1spinlock.html">resumef::spinlock</a></div><div class="ttdoc">一个自旋锁实现。</div><div class="ttdef"><b>Definition:</b> spinlock.h:14</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_a057618d5a806ffe6fd106f851082f12e"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#a057618d5a806ffe6fd106f851082f12e">resumef::batch_lock_t::operator=</a></div><div class="ttdeci">batch_lock_t & operator=(batch_lock_t &&_Right)</div><div class="ttdoc">支持移动赋值。</div><div class="ttdef"><b>Definition:</b> spinlock.h:288</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_abf8d154d25e3b66eb308750052fb660e"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#abf8d154d25e3b66eb308750052fb660e">resumef::batch_lock_t::batch_lock_t</a></div><div class="ttdeci">batch_lock_t(std::adopt_lock_t, _Cont &locks_, _Assemble &la_)</div><div class="ttdoc">通过锁容器和锁集合构造，容器里的锁已经全部获得。</div><div class="ttdef"><b>Definition:</b> spinlock.h:238</div></div>
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<div class="ttc" id="aclassresumef_1_1batch__lock__t_html_abc72b35a9eef1bd6c39955d63cc8ce9c"><div class="ttname"><a href="classresumef_1_1batch__lock__t.html#abc72b35a9eef1bd6c39955d63cc8ce9c">resumef::batch_lock_t::unlock</a></div><div class="ttdeci">void unlock()</div><div class="ttdoc">手工释放容器里的锁，析构函数里将不再有释放操作。</div><div class="ttdef"><b>Definition:</b> spinlock.h:256</div></div>
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