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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0103a8ad82dcc2c51f5cde661b4b5cb7.html">xrpl</a></li><li class="navelem"><a class="el" href="dir_f534ca90a4985f34ab325acfbcd39b84.html">basics</a></li> </ul>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef XRPL_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define XRPL_BASICS_INTRUSIVEREFCOUNTS_H_INCLUDED</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;xrpl/beast/utility/instrumentation.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a>&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a>&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"><a class="line" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae"> 22</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a> { <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>, <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">partialDestroy</a>, <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeafb14982288108e1fbd6207ef55f05027">destroy</a> };</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71"> 32</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71">ReleaseWeakRefAction</a> { <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>, <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeafb14982288108e1fbd6207ef55f05027">destroy</a> };</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="foldopen" id="foldopen00040" data-start="{" data-end="};">
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html"> 40</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts.html">IntrusiveRefCounts</a></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">virtual</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a8e64ef7680c91638a0a6d2f0d5444cfb">~IntrusiveRefCounts</a>() <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// This must be `noexcept` or the make_SharedIntrusive function could leak</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// memory.</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a44d240cf1051d782c88bd1bcdb072cac">addStrongRef</a>() <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#aa502b1f1e152bd4f4c710c6943967bad">addWeakRef</a>() <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#af7f5db65e79d614558bc9a03c45c7b8c">releaseStrongRef</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// Same as:</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// {</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// addWeakRef();</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// return releaseStrongRef;</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// }</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="comment">// done as one atomic operation</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a13d869dff65da3996d022a971b2fe3aa">addWeakReleaseStrongRef</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <a class="code hl_enumeration" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71">ReleaseWeakRefAction</a></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a000f6dd42dc9af453b395b964df539be">releaseWeakRef</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// Returns true is able to checkout a strong ref. False otherwise</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a690ab4bafcfa7dee5eb2c47232db2950">checkoutStrongRefFromWeak</a>() <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a286601ec69a019633505ebbcbf2e176e">expired</a>() <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a219f751b40b2bf0fcea4233970849680">use_count</a>() <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="comment">// This function MUST be called after a partial destructor finishes running.</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Calling this function may cause other threads to delete the object</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// pointed to by `o`, so `o` should never be used after calling this</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// function. The parameter will be set to a `nullptr` after calling this</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// function to emphasize that it should not be used.</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Note: This is intentionally NOT called at the end of `partialDestructor`.</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// The reason for this is if new classes are written to support this smart</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// pointer class, they need to write their own `partialDestructor` function</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// and ensure `partialDestructorFinished` is called at the end. Putting this</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// call inside the smart pointer class itself is expected to be less error</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// prone.</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// Note: The &quot;two-star&quot; programming is intentional. It emphasizes that `o`</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// may be deleted and the unergonomic API is meant to signal the special</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// nature of this function call to callers.</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// Note: This is a template to support incompletely defined classes.</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">friend</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <a class="code hl_friend" href="structripple_1_1IntrusiveRefCounts.html#a846e8e80d205b0e2406f92fcab8a0f1d">partialDestructorFinished</a>(T** o);</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// TODO: We may need to use a uint64_t for both counts. This will reduce the</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// memory savings. We need to audit the code to make sure 16 bit counts are</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// enough for strong pointers and 14 bit counts are enough for weak</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// pointers. Use type aliases to make it easy to switch types.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#ab7a556a3c550ec65bd4a13ad1e1c5d38"> 101</a></span> <span class="keyword">using </span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a>;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3"> 102</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a> = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structripple_1_1IntrusiveRefCounts.html#ab7a556a3c550ec65bd4a13ad1e1c5d38">CountType</a>) * 8;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#aa310ba583a58aff1ce8c3a5072509fe3"> 103</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa310ba583a58aff1ce8c3a5072509fe3">WeakCountNumBits</a> = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a> - 2;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#aced67e7449ec3de51624c32fa2600fb4"> 104</a></span> <span class="keyword">using </span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a>;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a219c707766656d5a3df4746157fd39e2"> 105</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a219c707766656d5a3df4746157fd39e2">FieldTypeBits</a> = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structripple_1_1IntrusiveRefCounts.html#aced67e7449ec3de51624c32fa2600fb4">FieldType</a>) * 8;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284"> 106</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> = 1;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1"> 141</a></span> <span class="keyword">mutable</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;FieldType&gt;</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>{<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>};</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3"> 148</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a> = 1;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d"> 155</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a> = (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a>);</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27"> 163</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a> =</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a219c707766656d5a3df4746157fd39e2">FieldTypeBits</a> - 1));</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340"> 171</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340">partialDestroyFinishedMask</a> =</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a219c707766656d5a3df4746157fd39e2">FieldTypeBits</a> - 2));</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a14f38487f6a28d53c2dd18f359f100b7"> 177</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a14f38487f6a28d53c2dd18f359f100b7">tagMask</a> =</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a> | <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340">partialDestroyFinishedMask</a>;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841"> 183</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841">valueMask</a> = ~tagMask;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a39d6806246ab6814b4976e8564eaa4a9"> 187</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a39d6806246ab6814b4976e8564eaa4a9">strongMask</a> =</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> ((<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a>) - 1) &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841">valueMask</a>;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a36e1b0cc04f4e9647f5bdc4cc15c2a58"> 192</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a36e1b0cc04f4e9647f5bdc4cc15c2a58">weakMask</a> =</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> (((<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa310ba583a58aff1ce8c3a5072509fe3">WeakCountNumBits</a>) - 1) &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a>) &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841">valueMask</a>;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="foldopen" id="foldopen00196" data-start="{" data-end="};">
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html"> 196</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7"> 198</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac"> 199</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a>;</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303"> 206</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303">partialDestroyStartedBit</a>{0};</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60"> 210</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60">partialDestroyFinishedBit</a>{0};</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a> v) <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> w) <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">FieldType</a></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40">combinedValue</a>() const noexcept;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a08a3ee388ad0dad0d8581b35a05f6e09"> 218</a></span> static constexpr <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a08a3ee388ad0dad0d8581b35a05f6e09">maxStrongValue</a> =</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> static_cast&lt;<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a>&gt;((<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a>) - 1);</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a7b32240720d58374299008d5a89d72d4"> 220</a></span> static constexpr <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a7b32240720d58374299008d5a89d72d4">maxWeakValue</a> =</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> static_cast&lt;<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a>&gt;((<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">one</a> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa310ba583a58aff1ce8c3a5072509fe3">WeakCountNumBits</a>) - 1);</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382"> 226</a></span> static constexpr <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382">checkStrongMaxValue</a> = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a08a3ee388ad0dad0d8581b35a05f6e09">maxStrongValue</a> - 32;</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a"> 227</a></span> static constexpr <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a">checkWeakMaxValue</a> = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a7b32240720d58374299008d5a89d72d4">maxWeakValue</a> - 32;</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> };</div>
</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span>};</div>
</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span>inline <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00232" data-start="{" data-end="}">
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a44d240cf1051d782c88bd1bcdb072cac"> 232</a></span><a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts.html">IntrusiveRefCounts</a>::<a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a44d240cf1051d782c88bd1bcdb072cac">addStrongRef</a>() const noexcept</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span>{</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.fetch_add(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span>}</div>
</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> </div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span><span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00238" data-start="{" data-end="}">
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#aa502b1f1e152bd4f4c710c6943967bad"> 238</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#aa502b1f1e152bd4f4c710c6943967bad">IntrusiveRefCounts::addWeakRef</a>() const noexcept</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span>{</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.fetch_add(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a>, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span>}</div>
</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span><span class="keyword">inline</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a></div>
<div class="foldopen" id="foldopen00244" data-start="{" data-end="}">
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#af7f5db65e79d614558bc9a03c45c7b8c"> 244</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#af7f5db65e79d614558bc9a03c45c7b8c">IntrusiveRefCounts::releaseStrongRef</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// Subtract `strongDelta` from refCounts. If this releases the last strong</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="comment">// ref, set the `partialDestroyStarted` bit. It is important that the ref</span></div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// count and the `partialDestroyStartedBit` are changed atomically (hence</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="comment">// the loop and `compare_exchange` op). If this didn&#39;t need to be done</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// atomically, the loop could be replaced with a `fetch_sub` and a</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// conditional `fetch_or`. This loop will almost always run once.</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> </div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keyword">using </span>enum <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a>;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">auto</span> prevIntVal = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keywordflow">while</span> (1)</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> {</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> <span class="keyword">const</span> prevVal{prevIntVal};</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> (prevVal.strong &gt;= <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>),</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::releaseStrongRef : previous ref &quot;</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="stringliteral">&quot;higher than new&quot;</span>);</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keyword">auto</span> nextIntVal = prevIntVal - <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>;</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>;</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">if</span> (prevVal.strong == 1)</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> {</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keywordflow">if</span> (prevVal.weak == 0)</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> {</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeafb14982288108e1fbd6207ef55f05027">destroy</a>;</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> }</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> {</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> nextIntVal |= <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a>;</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">partialDestroy</a>;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> }</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> </div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.compare_exchange_weak(</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> prevIntVal, nextIntVal, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>))</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> {</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// Can&#39;t be in partial destroy because only decrementing the strong</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// count to zero can start a partial destroy, and that can&#39;t happen</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// twice.</span></div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> (action == <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>) || !(prevIntVal &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a>),</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::releaseStrongRef : not in partial &quot;</span></div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="stringliteral">&quot;destroy&quot;</span>);</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="keywordflow">return</span> action;</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> }</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> }</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span>}</div>
</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> </div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span><span class="keyword">inline</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a></div>
<div class="foldopen" id="foldopen00293" data-start="{" data-end="}">
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a13d869dff65da3996d022a971b2fe3aa"> 293</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a13d869dff65da3996d022a971b2fe3aa">IntrusiveRefCounts::addWeakReleaseStrongRef</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <span class="keyword">using </span>enum <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a>;</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> </div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> <span class="keyword">static_assert</span>(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a> &gt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>);</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="keyword">auto</span> <span class="keyword">constexpr</span> delta = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a> - <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>;</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keyword">auto</span> prevIntVal = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> <span class="comment">// This loop will almost always run once. The loop is needed to atomically</span></div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="comment">// change the counts and flags (the count could be atomically changed, but</span></div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="comment">// the flags depend on the current value of the counts).</span></div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="comment">//</span></div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="comment">// Note: If this becomes a perf bottleneck, the `partialDestoryStartedMask`</span></div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="comment">// may be able to be set non-atomically. But it is easier to reason about</span></div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="comment">// the code if the flag is set atomically.</span></div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">while</span> (1)</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> {</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> <span class="keyword">const</span> prevVal{prevIntVal};</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="comment">// Converted the last strong pointer to a weak pointer.</span></div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="comment">//</span></div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> <span class="comment">// Can&#39;t be in partial destroy because only decrementing the</span></div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// strong count to zero can start a partial destroy, and that</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="comment">// can&#39;t happen twice.</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> (!prevVal.partialDestroyStartedBit),</div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::addWeakReleaseStrongRef : not in &quot;</span></div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="stringliteral">&quot;partial destroy&quot;</span>);</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keyword">auto</span> nextIntVal = prevIntVal + delta;</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <a class="code hl_enumeration" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ReleaseStrongRefAction</a> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>;</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="keywordflow">if</span> (prevVal.strong == 1)</div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> {</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keywordflow">if</span> (prevVal.weak == 0)</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> {</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">noop</a>;</div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> }</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> {</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> nextIntVal |= <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a>;</div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> action = <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">partialDestroy</a>;</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> }</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> }</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.compare_exchange_weak(</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> prevIntVal, nextIntVal, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>))</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> {</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> (!(prevIntVal &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a>)),</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::addWeakReleaseStrongRef : not &quot;</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="stringliteral">&quot;started partial destroy&quot;</span>);</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keywordflow">return</span> action;</div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> }</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> }</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span>}</div>
</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> </div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span><span class="keyword">inline</span> <a class="code hl_enumeration" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71">ReleaseWeakRefAction</a></div>
<div class="foldopen" id="foldopen00347" data-start="{" data-end="}">
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a000f6dd42dc9af453b395b964df539be"> 347</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a000f6dd42dc9af453b395b964df539be">IntrusiveRefCounts::releaseWeakRef</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <span class="keyword">auto</span> prevIntVal = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.fetch_sub(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a>, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> prev = prevIntVal;</div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">if</span> (prev.weak == 1 &amp;&amp; prev.strong == 0)</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> {</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keywordflow">if</span> (!prev.partialDestroyStartedBit)</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> {</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <span class="comment">// This case should only be hit if the partialDestroyStartedBit is</span></div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <span class="comment">// set non-atomically (and even then very rarely). The code is kept</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="comment">// in case we need to set the flag non-atomically for perf reasons.</span></div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.wait(prevIntVal, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> prevIntVal = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> prev = <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a>{prevIntVal};</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> }</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="keywordflow">if</span> (!prev.partialDestroyFinishedBit)</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> {</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="comment">// partial destroy MUST finish before running a full destroy (when</span></div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <span class="comment">// using weak pointers)</span></div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.wait(prevIntVal - <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">weakDelta</a>, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> }</div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027">ReleaseWeakRefAction::destroy</a>;</div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> }</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71a5483bf26dec486ec0175e2a3ca816a0a">ReleaseWeakRefAction::noop</a>;</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span>}</div>
</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00374" data-start="{" data-end="}">
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a690ab4bafcfa7dee5eb2c47232db2950"> 374</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a690ab4bafcfa7dee5eb2c47232db2950">IntrusiveRefCounts::checkoutStrongRefFromWeak</a>() const noexcept</div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span>{</div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <span class="keyword">auto</span> curValue = <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a>{1, 1}.<a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40">combinedValue</a>();</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="keyword">auto</span> desiredValue = <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a>{2, 1}.<a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40">combinedValue</a>();</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> </div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">while</span> (!<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.compare_exchange_weak(</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> curValue, desiredValue, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>))</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> {</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> <span class="keyword">const</span> prev{curValue};</div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <span class="keywordflow">if</span> (!prev.strong)</div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> </div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> desiredValue = curValue + <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">strongDelta</a>;</div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> }</div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span>}</div>
</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> </div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00392" data-start="{" data-end="}">
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a286601ec69a019633505ebbcbf2e176e"> 392</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a286601ec69a019633505ebbcbf2e176e">IntrusiveRefCounts::expired</a>() const noexcept</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span>{</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> <span class="keyword">const</span> val = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <span class="keywordflow">return</span> val.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a> == 0;</div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span>}</div>
</div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> </div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span><span class="keyword">inline</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div>
<div class="foldopen" id="foldopen00399" data-start="{" data-end="}">
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a219f751b40b2bf0fcea4233970849680"> 399</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a219f751b40b2bf0fcea4233970849680">IntrusiveRefCounts::use_count</a>() const noexcept</div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span>{</div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">RefCountPair</a> <span class="keyword">const</span> val = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordflow">return</span> val.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>;</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span>}</div>
</div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> </div>
<div class="foldopen" id="foldopen00405" data-start="{" data-end="}">
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a8e64ef7680c91638a0a6d2f0d5444cfb"> 405</a></span><span class="keyword">inline</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts.html#a8e64ef7680c91638a0a6d2f0d5444cfb">IntrusiveRefCounts::~IntrusiveRefCounts</a>() noexcept</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span>{</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span><span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="keyword">auto</span> v = <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">refCounts</a>.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> (!(v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841">valueMask</a>)),</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::~IntrusiveRefCounts : count must be zero&quot;</span>);</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="keyword">auto</span> t = v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a14f38487f6a28d53c2dd18f359f100b7">tagMask</a>;</div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> (!t || t == <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a14f38487f6a28d53c2dd18f359f100b7">tagMask</a>),</div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::~IntrusiveRefCounts : valid tag&quot;</span>);</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span>}</div>
</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> </div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span><span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> </div>
<div class="foldopen" id="foldopen00421" data-start="{" data-end="}">
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab25659e96337e637f8166fc237d5e15a"> 421</a></span><span class="keyword">inline</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab25659e96337e637f8166fc237d5e15a">IntrusiveRefCounts::RefCountPair::RefCountPair</a>(</div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">IntrusiveRefCounts::FieldType</a> v) noexcept</div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> : <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>{<span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a><span class="keyword">&gt;</span>(v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a39d6806246ab6814b4976e8564eaa4a9">strongMask</a>)}</div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> , <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a>{<span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">CountType</a><span class="keyword">&gt;</span>((v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a36e1b0cc04f4e9647f5bdc4cc15c2a58">weakMask</a>) &gt;&gt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">StrongCountNumBits</a>)}</div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> , <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303">partialDestroyStartedBit</a>{v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">partialDestroyStartedMask</a>}</div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> , <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60">partialDestroyFinishedBit</a>{v &amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340">partialDestroyFinishedMask</a>}</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span>{</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382">checkStrongMaxValue</a> &amp;&amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a">checkWeakMaxValue</a>),</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::RefCountPair(FieldType) : inputs inside &quot;</span></div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="stringliteral">&quot;range&quot;</span>);</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span>}</div>
</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> </div>
<div class="foldopen" id="foldopen00434" data-start="{" data-end="}">
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a97609b03a6a37c98a39074991b12d981"> 434</a></span><span class="keyword">inline</span> <a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab25659e96337e637f8166fc237d5e15a">IntrusiveRefCounts::RefCountPair::RefCountPair</a>(</div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">IntrusiveRefCounts::CountType</a> s,</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">IntrusiveRefCounts::CountType</a> w) noexcept</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> : <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>{s}, <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a>{w}</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span>{</div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382">checkStrongMaxValue</a> &amp;&amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a">checkWeakMaxValue</a>),</div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::RefCountPair(CountType, CountType) : &quot;</span></div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="stringliteral">&quot;inputs inside range&quot;</span>);</div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span>}</div>
</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> </div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span><span class="keyword">inline</span> <a class="code hl_typedef" href="structripple_1_1IntrusiveRefCounts.html#aced67e7449ec3de51624c32fa2600fb4">IntrusiveRefCounts::FieldType</a></div>
<div class="foldopen" id="foldopen00446" data-start="{" data-end="}">
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40"> 446</a></span><a class="code hl_function" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40">IntrusiveRefCounts::RefCountPair::combinedValue</a>() const noexcept</div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span>{</div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> (<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382">checkStrongMaxValue</a> &amp;&amp; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a> &lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a">checkWeakMaxValue</a>),</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="stringliteral">&quot;ripple::IntrusiveRefCounts::RefCountPair::combinedValue : inputs &quot;</span></div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="stringliteral">&quot;inside range&quot;</span>);</div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> <span class="keywordflow">return</span> (<span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">IntrusiveRefCounts::FieldType</a><span class="keyword">&gt;</span>(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a>)</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> &lt;&lt; <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">IntrusiveRefCounts::StrongCountNumBits</a>) |</div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">IntrusiveRefCounts::FieldType</a><span class="keyword">&gt;</span>(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>) |</div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303">partialDestroyStartedBit</a> | <a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60">partialDestroyFinishedBit</a>;</div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span>}</div>
</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> </div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span><span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span><span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00460" data-start="{" data-end="};">
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"><a class="line" href="structripple_1_1IntrusiveRefCounts.html#a846e8e80d205b0e2406f92fcab8a0f1d"> 460</a></span><a class="code hl_friend" href="structripple_1_1IntrusiveRefCounts.html#a846e8e80d205b0e2406f92fcab8a0f1d">partialDestructorFinished</a>(T** o)</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span>{</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> T&amp; self = **o;</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> <a class="code hl_struct" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">IntrusiveRefCounts::RefCountPair</a> p =</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> self.refCounts.fetch_or(<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340">IntrusiveRefCounts::partialDestroyFinishedMask</a>);</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> (!p.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60">partialDestroyFinishedBit</a> &amp;&amp; p.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303">partialDestroyStartedBit</a> &amp;&amp;</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> !p.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">strong</a>),</div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> <span class="stringliteral">&quot;ripple::partialDestructorFinished : not a weak ref&quot;</span>);</div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> <span class="keywordflow">if</span> (!p.<a class="code hl_variable" href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">weak</a>)</div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> {</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="comment">// There was a weak count before the partial destructor ran (or we would</span></div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="comment">// have run the full destructor) and now there isn&#39;t a weak count. Some</span></div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <span class="comment">// thread is waiting to run the destructor.</span></div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> self.refCounts.notify_one();</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> }</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <span class="comment">// Set the pointer to null to emphasize that the object shouldn&#39;t be used</span></div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="comment">// after calling this function as it may be destroyed in another thread.</span></div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> *o = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span>}</div>
</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span><span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> </div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aatomic_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a></div></div>
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<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a></div></div>
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<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespaceripple_html_a3b64e12be521bde0f95af971c64faf71"><div class="ttname"><a href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71">ripple::ReleaseWeakRefAction</a></div><div class="ttdeci">ReleaseWeakRefAction</div><div class="ttdoc">Action to perform when releasing a weak pointer.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00032">IntrusiveRefCounts.h:32</a></div></div>
<div class="ttc" id="anamespaceripple_html_a3b64e12be521bde0f95af971c64faf71a5483bf26dec486ec0175e2a3ca816a0a"><div class="ttname"><a href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71a5483bf26dec486ec0175e2a3ca816a0a">ripple::ReleaseWeakRefAction::noop</a></div><div class="ttdeci">@ noop</div></div>
<div class="ttc" id="anamespaceripple_html_a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027"><div class="ttname"><a href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027">ripple::ReleaseWeakRefAction::destroy</a></div><div class="ttdeci">@ destroy</div></div>
<div class="ttc" id="anamespaceripple_html_ac34a69f56216ea1e430c09ba049bf0ae"><div class="ttname"><a href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0ae">ripple::ReleaseStrongRefAction</a></div><div class="ttdeci">ReleaseStrongRefAction</div><div class="ttdoc">Action to perform when releasing a strong pointer.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00022">IntrusiveRefCounts.h:22</a></div></div>
<div class="ttc" id="anamespaceripple_html_ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a"><div class="ttname"><a href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aea5483bf26dec486ec0175e2a3ca816a0a">ripple::ReleaseStrongRefAction::noop</a></div><div class="ttdeci">@ noop</div></div>
<div class="ttc" id="anamespaceripple_html_ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894"><div class="ttname"><a href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">ripple::ReleaseStrongRefAction::partialDestroy</a></div><div class="ttdeci">@ partialDestroy</div></div>
<div class="ttc" id="anamespaceripple_html_ac34a69f56216ea1e430c09ba049bf0aeafb14982288108e1fbd6207ef55f05027"><div class="ttname"><a href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeafb14982288108e1fbd6207ef55f05027">ripple::ReleaseStrongRefAction::destroy</a></div><div class="ttdeci">@ destroy</div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html">ripple::IntrusiveRefCounts::RefCountPair</a></div><div class="ttdoc">Unpack the count and tag fields from the packed atomic integer form.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00196">IntrusiveRefCounts.h:197</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a08a3ee388ad0dad0d8581b35a05f6e09"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a08a3ee388ad0dad0d8581b35a05f6e09">ripple::IntrusiveRefCounts::RefCountPair::maxStrongValue</a></div><div class="ttdeci">static constexpr CountType maxStrongValue</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00218">IntrusiveRefCounts.h:218</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a20206071649f542ab242092949c9b6f7"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a20206071649f542ab242092949c9b6f7">ripple::IntrusiveRefCounts::RefCountPair::strong</a></div><div class="ttdeci">CountType strong</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00198">IntrusiveRefCounts.h:198</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a3526ee1da5ec7c2a3ad7beb173e819ac"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a3526ee1da5ec7c2a3ad7beb173e819ac">ripple::IntrusiveRefCounts::RefCountPair::weak</a></div><div class="ttdeci">CountType weak</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00199">IntrusiveRefCounts.h:199</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a44d096585c183aff9f715c987c483e40"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a44d096585c183aff9f715c987c483e40">ripple::IntrusiveRefCounts::RefCountPair::combinedValue</a></div><div class="ttdeci">FieldType combinedValue() const noexcept</div><div class="ttdoc">Convert back to the packed integer form.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00446">IntrusiveRefCounts.h:446</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a5a68ddf1ca94e440af651c0318c7ee60"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a5a68ddf1ca94e440af651c0318c7ee60">ripple::IntrusiveRefCounts::RefCountPair::partialDestroyFinishedBit</a></div><div class="ttdeci">FieldType partialDestroyFinishedBit</div><div class="ttdoc">The partialDestroyFinishedBit is set to on when the partial destroy function has finished.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00210">IntrusiveRefCounts.h:210</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a7b32240720d58374299008d5a89d72d4"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a7b32240720d58374299008d5a89d72d4">ripple::IntrusiveRefCounts::RefCountPair::maxWeakValue</a></div><div class="ttdeci">static constexpr CountType maxWeakValue</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00220">IntrusiveRefCounts.h:220</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_a9ea6575bfe6e0e44fdc2143a3401fe1a"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#a9ea6575bfe6e0e44fdc2143a3401fe1a">ripple::IntrusiveRefCounts::RefCountPair::checkWeakMaxValue</a></div><div class="ttdeci">static constexpr CountType checkWeakMaxValue</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00227">IntrusiveRefCounts.h:227</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_ab25659e96337e637f8166fc237d5e15a"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab25659e96337e637f8166fc237d5e15a">ripple::IntrusiveRefCounts::RefCountPair::RefCountPair</a></div><div class="ttdeci">RefCountPair(FieldType v) noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00421">IntrusiveRefCounts.h:421</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_ab3197f432e48a99ab7115a8ee94d5303"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ab3197f432e48a99ab7115a8ee94d5303">ripple::IntrusiveRefCounts::RefCountPair::partialDestroyStartedBit</a></div><div class="ttdeci">FieldType partialDestroyStartedBit</div><div class="ttdoc">The partialDestroyStartedBit is set to on when the partial destroy function is started.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00206">IntrusiveRefCounts.h:206</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_1_1RefCountPair_html_ad052991e010ba4b68b57eafbec519382"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts_1_1RefCountPair.html#ad052991e010ba4b68b57eafbec519382">ripple::IntrusiveRefCounts::RefCountPair::checkStrongMaxValue</a></div><div class="ttdeci">static constexpr CountType checkStrongMaxValue</div><div class="ttdoc">Put an extra margin to detect when running up against limits.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00226">IntrusiveRefCounts.h:226</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html">ripple::IntrusiveRefCounts</a></div><div class="ttdoc">Implement the strong count, weak count, and bit flags for an intrusive pointer.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00040">IntrusiveRefCounts.h:41</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a000f6dd42dc9af453b395b964df539be"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a000f6dd42dc9af453b395b964df539be">ripple::IntrusiveRefCounts::releaseWeakRef</a></div><div class="ttdeci">ReleaseWeakRefAction releaseWeakRef() const</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00347">IntrusiveRefCounts.h:347</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a0265ace836a9db14f452882719075ad3"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a0265ace836a9db14f452882719075ad3">ripple::IntrusiveRefCounts::StrongCountNumBits</a></div><div class="ttdeci">static constexpr size_t StrongCountNumBits</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00102">IntrusiveRefCounts.h:102</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a08a017aeb3e7f6b9c0a09cb63ab16340"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a08a017aeb3e7f6b9c0a09cb63ab16340">ripple::IntrusiveRefCounts::partialDestroyFinishedMask</a></div><div class="ttdeci">static constexpr FieldType partialDestroyFinishedMask</div><div class="ttdoc">Flag that is set when the partialDestroy function has finished running.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00171">IntrusiveRefCounts.h:171</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a13d869dff65da3996d022a971b2fe3aa"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a13d869dff65da3996d022a971b2fe3aa">ripple::IntrusiveRefCounts::addWeakReleaseStrongRef</a></div><div class="ttdeci">ReleaseStrongRefAction addWeakReleaseStrongRef() const</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00293">IntrusiveRefCounts.h:293</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a14f38487f6a28d53c2dd18f359f100b7"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a14f38487f6a28d53c2dd18f359f100b7">ripple::IntrusiveRefCounts::tagMask</a></div><div class="ttdeci">static constexpr FieldType tagMask</div><div class="ttdoc">Mask that will zero out all the count bits and leave the tag bits unchanged.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00177">IntrusiveRefCounts.h:177</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a219c707766656d5a3df4746157fd39e2"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a219c707766656d5a3df4746157fd39e2">ripple::IntrusiveRefCounts::FieldTypeBits</a></div><div class="ttdeci">static constexpr size_t FieldTypeBits</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00105">IntrusiveRefCounts.h:105</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a219f751b40b2bf0fcea4233970849680"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a219f751b40b2bf0fcea4233970849680">ripple::IntrusiveRefCounts::use_count</a></div><div class="ttdeci">std::size_t use_count() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00399">IntrusiveRefCounts.h:399</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a286601ec69a019633505ebbcbf2e176e"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a286601ec69a019633505ebbcbf2e176e">ripple::IntrusiveRefCounts::expired</a></div><div class="ttdeci">bool expired() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00392">IntrusiveRefCounts.h:392</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a36e1b0cc04f4e9647f5bdc4cc15c2a58"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a36e1b0cc04f4e9647f5bdc4cc15c2a58">ripple::IntrusiveRefCounts::weakMask</a></div><div class="ttdeci">static constexpr FieldType weakMask</div><div class="ttdoc">Mask that will zero out everything except the weak count.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00192">IntrusiveRefCounts.h:192</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a39d6806246ab6814b4976e8564eaa4a9"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a39d6806246ab6814b4976e8564eaa4a9">ripple::IntrusiveRefCounts::strongMask</a></div><div class="ttdeci">static constexpr FieldType strongMask</div><div class="ttdoc">Mask that will zero out everything except the strong count.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00187">IntrusiveRefCounts.h:187</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a44d240cf1051d782c88bd1bcdb072cac"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a44d240cf1051d782c88bd1bcdb072cac">ripple::IntrusiveRefCounts::addStrongRef</a></div><div class="ttdeci">void addStrongRef() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00232">IntrusiveRefCounts.h:232</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a52d23e303089ab5665473e7d963e4a27"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a52d23e303089ab5665473e7d963e4a27">ripple::IntrusiveRefCounts::partialDestroyStartedMask</a></div><div class="ttdeci">static constexpr FieldType partialDestroyStartedMask</div><div class="ttdoc">Flag that is set when the partialDestroy function has started running (or is about to start running).</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00163">IntrusiveRefCounts.h:163</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a690ab4bafcfa7dee5eb2c47232db2950"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a690ab4bafcfa7dee5eb2c47232db2950">ripple::IntrusiveRefCounts::checkoutStrongRefFromWeak</a></div><div class="ttdeci">bool checkoutStrongRefFromWeak() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00374">IntrusiveRefCounts.h:374</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a6de3bfde61b102118d4d85dbb2a9a7a3"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a6de3bfde61b102118d4d85dbb2a9a7a3">ripple::IntrusiveRefCounts::strongDelta</a></div><div class="ttdeci">static constexpr FieldType strongDelta</div><div class="ttdoc">Amount to change the strong count when adding or releasing a reference.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00148">IntrusiveRefCounts.h:148</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a846e8e80d205b0e2406f92fcab8a0f1d"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a846e8e80d205b0e2406f92fcab8a0f1d">ripple::IntrusiveRefCounts::partialDestructorFinished</a></div><div class="ttdeci">friend void partialDestructorFinished(T **o)</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00460">IntrusiveRefCounts.h:460</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a8e64ef7680c91638a0a6d2f0d5444cfb"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a8e64ef7680c91638a0a6d2f0d5444cfb">ripple::IntrusiveRefCounts::~IntrusiveRefCounts</a></div><div class="ttdeci">virtual ~IntrusiveRefCounts() noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00405">IntrusiveRefCounts.h:405</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_a9f1df1e02f8c059a10598595669c5f4d"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#a9f1df1e02f8c059a10598595669c5f4d">ripple::IntrusiveRefCounts::weakDelta</a></div><div class="ttdeci">static constexpr FieldType weakDelta</div><div class="ttdoc">Amount to change the weak count when adding or releasing a reference.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00155">IntrusiveRefCounts.h:155</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_aa310ba583a58aff1ce8c3a5072509fe3"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#aa310ba583a58aff1ce8c3a5072509fe3">ripple::IntrusiveRefCounts::WeakCountNumBits</a></div><div class="ttdeci">static constexpr size_t WeakCountNumBits</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00103">IntrusiveRefCounts.h:103</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_aa502b1f1e152bd4f4c710c6943967bad"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#aa502b1f1e152bd4f4c710c6943967bad">ripple::IntrusiveRefCounts::addWeakRef</a></div><div class="ttdeci">void addWeakRef() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00238">IntrusiveRefCounts.h:238</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_aa7d6626e9f8c505aee5e4e4a6a9a2841"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#aa7d6626e9f8c505aee5e4e4a6a9a2841">ripple::IntrusiveRefCounts::valueMask</a></div><div class="ttdeci">static constexpr FieldType valueMask</div><div class="ttdoc">Mask that will zero out the tag bits and leave the count bits unchanged.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00183">IntrusiveRefCounts.h:183</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_ab6cad1aff7f346dcebd12c0d60ea3284"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#ab6cad1aff7f346dcebd12c0d60ea3284">ripple::IntrusiveRefCounts::one</a></div><div class="ttdeci">static constexpr FieldType one</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00106">IntrusiveRefCounts.h:106</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_ab7a556a3c550ec65bd4a13ad1e1c5d38"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#ab7a556a3c550ec65bd4a13ad1e1c5d38">ripple::IntrusiveRefCounts::CountType</a></div><div class="ttdeci">std::uint16_t CountType</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00101">IntrusiveRefCounts.h:101</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_aca9660ae7c2e3bfcefc49a3bc319b7c1"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#aca9660ae7c2e3bfcefc49a3bc319b7c1">ripple::IntrusiveRefCounts::refCounts</a></div><div class="ttdeci">std::atomic&lt; FieldType &gt; refCounts</div><div class="ttdoc">refCounts consists of four fields that are treated atomically:</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00141">IntrusiveRefCounts.h:141</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_aced67e7449ec3de51624c32fa2600fb4"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#aced67e7449ec3de51624c32fa2600fb4">ripple::IntrusiveRefCounts::FieldType</a></div><div class="ttdeci">std::uint32_t FieldType</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00104">IntrusiveRefCounts.h:104</a></div></div>
<div class="ttc" id="astructripple_1_1IntrusiveRefCounts_html_af7f5db65e79d614558bc9a03c45c7b8c"><div class="ttname"><a href="structripple_1_1IntrusiveRefCounts.html#af7f5db65e79d614558bc9a03c45c7b8c">ripple::IntrusiveRefCounts::releaseStrongRef</a></div><div class="ttdeci">ReleaseStrongRefAction releaseStrongRef() const</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00244">IntrusiveRefCounts.h:244</a></div></div>
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