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<h1>shared-ptr.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * This file is part of TelepathyQt4</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2009 Collabora Ltd. <http://www.collabora.co.uk/></span>
<a name="l00005"></a>00005 <span class="comment"> * Copyright (C) 2009 Nokia Corporation</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00008"></a>00008 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span>
<a name="l00009"></a>00009 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00010"></a>00010 <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00015"></a>00015 <span class="comment"> * Lesser General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span>
<a name="l00018"></a>00018 <span class="comment"> * License along with this library; if not, write to the Free Software</span>
<a name="l00019"></a>00019 <span class="comment"> * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef _TelepathyQt4_shared_ptr_h_HEADER_GUARD_</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define _TelepathyQt4_shared_ptr_h_HEADER_GUARD_</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#ifndef IN_TELEPATHY_QT4_HEADER</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#error IN_TELEPATHY_QT4_HEADER</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <TelepathyQt4/Global></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#include <QObject></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">namespace </span>Tp
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">class </span>RefCounted;
<a name="l00037"></a>00037 <span class="keyword">class </span>WeakData;
<a name="l00038"></a>00038 <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span>SharedPtr;
<a name="l00039"></a>00039 <span class="keyword">template</span> <<span class="keyword">class</span> T> <span class="keyword">class </span>WeakPtr;
<a name="l00040"></a>00040
<a name="l00041"></a><a class="code" href="classTp_1_1WeakData.html">00041</a> <span class="keyword">class </span>TELEPATHY_QT4_EXPORT <a class="code" href="classTp_1_1WeakData.html">WeakData</a>
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 Q_DISABLE_COPY(<a class="code" href="classTp_1_1WeakData.html">WeakData</a>)
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">public</span>:
<a name="l00046"></a><a class="code" href="classTp_1_1WeakData.html#a611b3a2d0aa37ee250735b6419f50d54">00046</a> <a class="code" href="classTp_1_1WeakData.html#a611b3a2d0aa37ee250735b6419f50d54">WeakData</a>(<a class="code" href="classTp_1_1RefCounted.html">RefCounted</a> *d) : d(d), weakref(0) { }
<a name="l00047"></a>00047
<a name="l00048"></a><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">00048</a> <a class="code" href="classTp_1_1RefCounted.html">RefCounted</a> *d;
<a name="l00049"></a><a class="code" href="classTp_1_1WeakData.html#aefcb5b9e18c7ff89c0a5efd2c76f1a31">00049</a> <span class="keyword">mutable</span> QAtomicInt weakref;
<a name="l00050"></a>00050 };
<a name="l00051"></a>00051
<a name="l00052"></a><a class="code" href="classTp_1_1RefCounted.html">00052</a> <span class="keyword">class </span>TELEPATHY_QT4_EXPORT <a class="code" href="classTp_1_1RefCounted.html">RefCounted</a>
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 Q_DISABLE_COPY(<a class="code" href="classTp_1_1RefCounted.html">RefCounted</a>)
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">public</span>:
<a name="l00057"></a><a class="code" href="classTp_1_1RefCounted.html#ace03ea74806fd9a180b8863ae23c838c">00057</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1RefCounted.html#ace03ea74806fd9a180b8863ae23c838c">RefCounted</a>() : strongref(0), wd(0) { }
<a name="l00058"></a><a class="code" href="classTp_1_1RefCounted.html#a56b3618d2e02f6999c77da00d4e1bfd4">00058</a> <span class="keyword">inline</span> <span class="keyword">virtual</span> <a class="code" href="classTp_1_1RefCounted.html#a56b3618d2e02f6999c77da00d4e1bfd4">~RefCounted</a>() { <span class="keywordflow">if</span> (wd) { wd->d = 0; } }
<a name="l00059"></a>00059
<a name="l00060"></a><a class="code" href="classTp_1_1RefCounted.html#ae8c4f589c83eb25f68cb3f496d6f48b8">00060</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classTp_1_1RefCounted.html#ae8c4f589c83eb25f68cb3f496d6f48b8">ref</a>() { strongref.ref(); }
<a name="l00061"></a><a class="code" href="classTp_1_1RefCounted.html#af189ec755a2ea9963341de35ebeeb7d2">00061</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1RefCounted.html#af189ec755a2ea9963341de35ebeeb7d2">deref</a>() { <span class="keywordflow">return</span> strongref.deref(); }
<a name="l00062"></a>00062
<a name="l00063"></a><a class="code" href="classTp_1_1RefCounted.html#a76c6988cd2e89252a44e0b89893eb416">00063</a> <span class="keyword">mutable</span> QAtomicInt strongref;
<a name="l00064"></a><a class="code" href="classTp_1_1RefCounted.html#aa61da81faa9ba4aec451b32904842cc0">00064</a> <a class="code" href="classTp_1_1WeakData.html">WeakData</a> *wd;
<a name="l00065"></a>00065 };
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keyword">template</span> <<span class="keyword">class</span> T>
<a name="l00068"></a><a class="code" href="classTp_1_1SharedPtr.html">00068</a> <span class="keyword">class </span><a class="code" href="classTp_1_1SharedPtr.html">SharedPtr</a>
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <span class="keyword">public</span>:
<a name="l00071"></a><a class="code" href="classTp_1_1SharedPtr.html#a79e77f8516541918fc59fc3158183cfc">00071</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#a79e77f8516541918fc59fc3158183cfc">SharedPtr</a>() : d(0) { }
<a name="l00072"></a><a class="code" href="classTp_1_1SharedPtr.html#aeaadda9d83f81f9942b60b8c280322c2">00072</a> <span class="keyword">explicit</span> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#aeaadda9d83f81f9942b60b8c280322c2">SharedPtr</a>(T *d) : d(d) { <span class="keywordflow">if</span> (d) { d->ref(); } }
<a name="l00073"></a><a class="code" href="classTp_1_1SharedPtr.html#a2af4d2c560f1a053c77e3b4db1157f4f">00073</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#a2af4d2c560f1a053c77e3b4db1157f4f">SharedPtr</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o) : d(o.d) { <span class="keywordflow">if</span> (d) { d->ref(); } }
<a name="l00074"></a><a class="code" href="classTp_1_1SharedPtr.html#aa5e4c47a385747ecea8321bcfd1de5e9">00074</a> <span class="keyword">explicit</span> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#a79e77f8516541918fc59fc3158183cfc">SharedPtr</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &o)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076 <span class="keywordflow">if</span> (o.wd && o.wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a>) {
<a name="l00077"></a>00077 d = <span class="keyword">static_cast<</span>T*<span class="keyword">></span>(o.wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a>);
<a name="l00078"></a>00078 d->ref();
<a name="l00079"></a>00079 } <span class="keywordflow">else</span> {
<a name="l00080"></a>00080 d = 0;
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 }
<a name="l00083"></a><a class="code" href="classTp_1_1SharedPtr.html#a71f1de35be59445d9779b438d2023946">00083</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#a71f1de35be59445d9779b438d2023946">~SharedPtr</a>()
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085 <span class="keywordflow">if</span> (d && !d->deref()) {
<a name="l00086"></a>00086 <span class="keyword">delete</span> d;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="classTp_1_1SharedPtr.html#a7683de5eedc65e88c82c0d22deb4ee8b">00090</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classTp_1_1SharedPtr.html#a7683de5eedc65e88c82c0d22deb4ee8b">reset</a>()
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>().<a class="code" href="classTp_1_1SharedPtr.html#a71e6e70f44c02324359ff508390491d7">swap</a>(*<span class="keyword">this</span>);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a><a class="code" href="classTp_1_1SharedPtr.html#adc73ce1581f42a51d84b8ac5a8998880">00095</a> <span class="keyword">inline</span> T *<a class="code" href="classTp_1_1SharedPtr.html#adc73ce1581f42a51d84b8ac5a8998880">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d; }
<a name="l00096"></a><a class="code" href="classTp_1_1SharedPtr.html#a4d5f86f30c12329a9bb25c751e929f3e">00096</a> <span class="keyword">inline</span> <span class="keyword">const</span> T *<a class="code" href="classTp_1_1SharedPtr.html#a4d5f86f30c12329a9bb25c751e929f3e">constData</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d; }
<a name="l00097"></a><a class="code" href="classTp_1_1SharedPtr.html#a608bb2dfb78e98f9417af758db90eda4">00097</a> <span class="keyword">inline</span> T *<a class="code" href="classTp_1_1SharedPtr.html#a608bb2dfb78e98f9417af758db90eda4">operator-></a>() { <span class="keywordflow">return</span> d; }
<a name="l00098"></a><a class="code" href="classTp_1_1SharedPtr.html#a618035ac0a3615febf15b3a691494c53">00098</a> <span class="keyword">inline</span> T *<a class="code" href="classTp_1_1SharedPtr.html#a618035ac0a3615febf15b3a691494c53">operator-></a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d; }
<a name="l00099"></a>00099
<a name="l00100"></a><a class="code" href="classTp_1_1SharedPtr.html#ae420fced157c5aa01e6657c99b7e2369">00100</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#ae420fced157c5aa01e6657c99b7e2369">isNull</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !d; }
<a name="l00101"></a><a class="code" href="classTp_1_1SharedPtr.html#a00164bf983ef9a492bbca0b3e4164913">00101</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html#a00164bf983ef9a492bbca0b3e4164913">operator bool</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !<a class="code" href="classTp_1_1SharedPtr.html#ae420fced157c5aa01e6657c99b7e2369">isNull</a>(); }
<a name="l00102"></a><a class="code" href="classTp_1_1SharedPtr.html#adbf812bbeb93627bce95e34348193944">00102</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#adbf812bbeb93627bce95e34348193944">operator!</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classTp_1_1SharedPtr.html#ae420fced157c5aa01e6657c99b7e2369">isNull</a>(); }
<a name="l00103"></a>00103
<a name="l00104"></a><a class="code" href="classTp_1_1SharedPtr.html#a47a747a700f6f2f201c2b32b7953c049">00104</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#a47a747a700f6f2f201c2b32b7953c049">operator==</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d == o.d; }
<a name="l00105"></a><a class="code" href="classTp_1_1SharedPtr.html#a2c390370413437b5c157b66b80f36b80">00105</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#a2c390370413437b5c157b66b80f36b80">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d != o.d; }
<a name="l00106"></a><a class="code" href="classTp_1_1SharedPtr.html#a9ce5aadb276e525209ad8fa0d4907d48">00106</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#a9ce5aadb276e525209ad8fa0d4907d48">operator==</a>(<span class="keyword">const</span> T *ptr)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d == ptr; }
<a name="l00107"></a><a class="code" href="classTp_1_1SharedPtr.html#a700193a0dcb1e9f40db5f2e6197dce7e">00107</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1SharedPtr.html#a700193a0dcb1e9f40db5f2e6197dce7e">operator!=</a>(<span class="keyword">const</span> T *ptr)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d != ptr; }
<a name="l00108"></a>00108
<a name="l00109"></a><a class="code" href="classTp_1_1SharedPtr.html#aebc80490d3f55d97a94fcfab17ed2e11">00109</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &<a class="code" href="classTp_1_1SharedPtr.html#aebc80490d3f55d97a94fcfab17ed2e11">operator=</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>(o).<a class="code" href="classTp_1_1SharedPtr.html#a71e6e70f44c02324359ff508390491d7">swap</a>(*<span class="keyword">this</span>);
<a name="l00112"></a>00112 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a><a class="code" href="classTp_1_1SharedPtr.html#a71e6e70f44c02324359ff508390491d7">00115</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classTp_1_1SharedPtr.html#a71e6e70f44c02324359ff508390491d7">swap</a>(<a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 T *tmp = d;
<a name="l00118"></a>00118 d = o.d;
<a name="l00119"></a>00119 o.d = tmp;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keyword">template</span> <<span class="keyword">class</span> X>
<a name="l00123"></a><a class="code" href="classTp_1_1SharedPtr.html#a77d88803c1336628b891ce9e57b6808f">00123</a> <span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> <a class="code" href="classTp_1_1SharedPtr.html#a77d88803c1336628b891ce9e57b6808f">staticCast</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<X></a> &src)
<a name="l00124"></a>00124 {
<a name="l00125"></a>00125 <span class="keywordflow">return</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>(<span class="keyword">static_cast<</span>T*<span class="keyword">></span>(src.<a class="code" href="classTp_1_1SharedPtr.html#adc73ce1581f42a51d84b8ac5a8998880">data</a>()));
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keyword">template</span> <<span class="keyword">class</span> X>
<a name="l00129"></a><a class="code" href="classTp_1_1SharedPtr.html#aa5ada832f48550a0943009b461dd0580">00129</a> <span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> <a class="code" href="classTp_1_1SharedPtr.html#aa5ada832f48550a0943009b461dd0580">dynamicCast</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<X></a> &src)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 <span class="keywordflow">return</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>(<span class="keyword">dynamic_cast<</span>T*<span class="keyword">></span>(src.<a class="code" href="classTp_1_1SharedPtr.html#adc73ce1581f42a51d84b8ac5a8998880">data</a>()));
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keyword">template</span> <<span class="keyword">class</span> X>
<a name="l00135"></a><a class="code" href="classTp_1_1SharedPtr.html#aa36691aa0882d53e2a6ff0c9da5cbddf">00135</a> <span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> <a class="code" href="classTp_1_1SharedPtr.html#aa36691aa0882d53e2a6ff0c9da5cbddf">constCast</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<X></a> &src)
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 <span class="keywordflow">return</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>(<span class="keyword">const_cast<</span>T*<span class="keyword">></span>(src.<a class="code" href="classTp_1_1SharedPtr.html#adc73ce1581f42a51d84b8ac5a8998880">data</a>()));
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keyword">private</span>:
<a name="l00141"></a><a class="code" href="classTp_1_1SharedPtr.html#aa41019c2e01db7e96b47e2bf8b2a9f13">00141</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classTp_1_1WeakPtr.html">WeakPtr</a><T>;
<a name="l00142"></a>00142
<a name="l00143"></a>00143 T *d;
<a name="l00144"></a>00144 };
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">template</span> <<span class="keyword">class</span> T>
<a name="l00147"></a><a class="code" href="classTp_1_1WeakPtr.html">00147</a> <span class="keyword">class </span><a class="code" href="classTp_1_1WeakPtr.html">WeakPtr</a>
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 <span class="keyword">public</span>:
<a name="l00150"></a><a class="code" href="classTp_1_1WeakPtr.html#ae3298ebf0b212020bd5cf36f25e8de36">00150</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html#ae3298ebf0b212020bd5cf36f25e8de36">WeakPtr</a>() : wd(0) { }
<a name="l00151"></a><a class="code" href="classTp_1_1WeakPtr.html#a747d5b502f228065554886cd98527601">00151</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html#a747d5b502f228065554886cd98527601">WeakPtr</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &o) : wd(o.wd) { <span class="keywordflow">if</span> (wd) { wd-><a class="code" href="classTp_1_1WeakData.html#aefcb5b9e18c7ff89c0a5efd2c76f1a31">weakref</a>.ref(); } }
<a name="l00152"></a><a class="code" href="classTp_1_1WeakPtr.html#aae987022fe973ce08f4a1621547871cc">00152</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html#ae3298ebf0b212020bd5cf36f25e8de36">WeakPtr</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 <span class="keywordflow">if</span> (o.d) {
<a name="l00155"></a>00155 <span class="keywordflow">if</span> (!o.d->wd) {
<a name="l00156"></a>00156 o.d->wd = <span class="keyword">new</span> <a class="code" href="classTp_1_1WeakData.html">WeakData</a>(o.d);
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 wd = o.d->wd;
<a name="l00159"></a>00159 wd-><a class="code" href="classTp_1_1WeakData.html#aefcb5b9e18c7ff89c0a5efd2c76f1a31">weakref</a>.ref();
<a name="l00160"></a>00160 } <span class="keywordflow">else</span> {
<a name="l00161"></a>00161 wd = 0;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163 }
<a name="l00164"></a><a class="code" href="classTp_1_1WeakPtr.html#a5578d71cd460221beb4f4c14006a1f76">00164</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html#a5578d71cd460221beb4f4c14006a1f76">~WeakPtr</a>()
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keywordflow">if</span> (wd && !wd-><a class="code" href="classTp_1_1WeakData.html#aefcb5b9e18c7ff89c0a5efd2c76f1a31">weakref</a>.deref()) {
<a name="l00167"></a>00167 <span class="keywordflow">if</span> (wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a>) {
<a name="l00168"></a>00168 wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a>-><a class="code" href="classTp_1_1RefCounted.html#aa61da81faa9ba4aec451b32904842cc0">wd</a> = 0;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170 <span class="keyword">delete</span> wd;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173
<a name="l00174"></a><a class="code" href="classTp_1_1WeakPtr.html#ad507ba1eab0caa2d22a6ddcd0bda1de3">00174</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1WeakPtr.html#ad507ba1eab0caa2d22a6ddcd0bda1de3">isNull</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !wd || !wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a> || wd-><a class="code" href="classTp_1_1WeakData.html#a67d70eeb3ec570eb3eb792d51da8cddd">d</a>-><a class="code" href="classTp_1_1RefCounted.html#a76c6988cd2e89252a44e0b89893eb416">strongref</a> == 0; }
<a name="l00175"></a><a class="code" href="classTp_1_1WeakPtr.html#a59f2afe6c2a9127a523f147390ae017a">00175</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html#a59f2afe6c2a9127a523f147390ae017a">operator bool</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !<a class="code" href="classTp_1_1WeakPtr.html#ad507ba1eab0caa2d22a6ddcd0bda1de3">isNull</a>(); }
<a name="l00176"></a><a class="code" href="classTp_1_1WeakPtr.html#a6d8a29c3a5279f84745ff399c8ee142b">00176</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classTp_1_1WeakPtr.html#a6d8a29c3a5279f84745ff399c8ee142b">operator!</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classTp_1_1WeakPtr.html#ad507ba1eab0caa2d22a6ddcd0bda1de3">isNull</a>(); }
<a name="l00177"></a>00177
<a name="l00178"></a><a class="code" href="classTp_1_1WeakPtr.html#a523cdbb873d133e0920855f9acb2f321">00178</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &<a class="code" href="classTp_1_1WeakPtr.html#a523cdbb873d133e0920855f9acb2f321">operator=</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &o)
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a>(o).<a class="code" href="classTp_1_1WeakPtr.html#aa7702fd0f3b1a14cf52a9c77063f273b">swap</a>(*<span class="keyword">this</span>);
<a name="l00181"></a>00181 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183
<a name="l00184"></a><a class="code" href="classTp_1_1WeakPtr.html#aa56b28622ae36336e5cdda6b7bacf114">00184</a> <span class="keyword">inline</span> <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &<a class="code" href="classTp_1_1WeakPtr.html#a523cdbb873d133e0920855f9acb2f321">operator=</a>(<span class="keyword">const</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> &o)
<a name="l00185"></a>00185 {
<a name="l00186"></a>00186 <a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a>(o).<a class="code" href="classTp_1_1WeakPtr.html#aa7702fd0f3b1a14cf52a9c77063f273b">swap</a>(*<span class="keyword">this</span>);
<a name="l00187"></a>00187 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a><a class="code" href="classTp_1_1WeakPtr.html#aa7702fd0f3b1a14cf52a9c77063f273b">00190</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classTp_1_1WeakPtr.html#aa7702fd0f3b1a14cf52a9c77063f273b">swap</a>(<a class="code" href="classTp_1_1WeakPtr.html">WeakPtr<T></a> &o)
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <a class="code" href="classTp_1_1WeakData.html">WeakData</a> *tmp = wd;
<a name="l00193"></a>00193 wd = o.wd;
<a name="l00194"></a>00194 o.wd = tmp;
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196
<a name="l00197"></a><a class="code" href="classTp_1_1WeakPtr.html#a795442739ef1bdfed71a7160e99b09de">00197</a> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a> <a class="code" href="classTp_1_1WeakPtr.html#a795442739ef1bdfed71a7160e99b09de">toStrongRef</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classTp_1_1SharedPtr.html">SharedPtr<T></a>(*this); }
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keyword">private</span>:
<a name="l00200"></a><a class="code" href="classTp_1_1WeakPtr.html#a9316d09dd38459d597be5e6fa34be61a">00200</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classTp_1_1SharedPtr.html">SharedPtr</a><T>;
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <a class="code" href="classTp_1_1WeakData.html">WeakData</a> *wd;
<a name="l00203"></a>00203 };
<a name="l00204"></a>00204
<a name="l00205"></a>00205 } <span class="comment">// Tp</span>
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="preprocessor">#endif</span>
</pre></div></div>
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