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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_9b536c30bc5a9db2084d75e9c271ba6f.html">uhd</a></li><li class="navelem"><a class="el" href="dir_f4b37310477eb290db01b88b258ae379.html">utils</a></li> </ul>
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<div class="title">atomic.hpp</div> </div>
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<a href="atomic_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2012-2013 Ettus Research LLC</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// This program is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// (at your option) any later version.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// GNU General Public License for more details.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">//</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// along with this program. If not, see <http://www.gnu.org/licenses/>.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">//</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#ifndef INCLUDED_UHD_UTILS_ATOMIC_HPP</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#define INCLUDED_UHD_UTILS_ATOMIC_HPP</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <<a class="code" href="config_8hpp.html">uhd/config.hpp</a>></span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <<a class="code" href="time__spec_8hpp.html">uhd/types/time_spec.hpp</a>></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <boost/thread/thread.hpp></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <boost/thread/mutex.hpp></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <boost/thread/condition_variable.hpp></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <boost/interprocess/detail/atomic.hpp></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <boost/version.hpp></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#if BOOST_VERSION >= 104800</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"># define BOOST_IPC_DETAIL boost::interprocess::ipcdetail</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="atomic_8hpp.html#a9c44e656bd6e88bbde00d37b1e09cda5"> 32</a></span> <span class="preprocessor"># define BOOST_IPC_DETAIL boost::interprocess::detail</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span><a class="code" href="namespaceuhd.html">uhd</a>{</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html"> 38</a></span>  <span class="keyword">class </span><a class="code" href="config_8hpp.html#adc68e1c030efb88af856decedf19aedf">UHD_API</a> <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a>{</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#a94a4bc4493ec3861f213e97fa3311264"> 42</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <a class="code" href="classuhd_1_1atomic__uint32__t.html#a94a4bc4493ec3861f213e97fa3311264">atomic_uint32_t</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  this->write(0);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#adca8dceff939c4497c309ae5407c6ca3"> 47</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> boost::uint32_t <a class="code" href="classuhd_1_1atomic__uint32__t.html#adca8dceff939c4497c309ae5407c6ca3">cas</a>(boost::uint32_t newval, boost::uint32_t cmp){</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> BOOST_IPC_DETAIL::atomic_cas32(&_num, newval, cmp);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#a9d82e64f152df723d11b62baf73d7af5"> 52</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1atomic__uint32__t.html#a9d82e64f152df723d11b62baf73d7af5">write</a>(<span class="keyword">const</span> boost::uint32_t newval){</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  BOOST_IPC_DETAIL::atomic_write32(&_num, newval);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673"> 57</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> boost::uint32_t <a class="code" href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673">read</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> BOOST_IPC_DETAIL::atomic_read32(&_num);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#a02c1e469a7773b16550355d9d0fc2522"> 62</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> boost::uint32_t <a class="code" href="classuhd_1_1atomic__uint32__t.html#a02c1e469a7773b16550355d9d0fc2522">inc</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> BOOST_IPC_DETAIL::atomic_inc32(&_num);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classuhd_1_1atomic__uint32__t.html#a712f1d0e775ff2ff6430fb1fff037342"> 67</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> boost::uint32_t <a class="code" href="classuhd_1_1atomic__uint32__t.html#a712f1d0e775ff2ff6430fb1fff037342">dec</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> BOOST_IPC_DETAIL::atomic_dec32(&_num);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">private</span>: <span class="keyword">volatile</span> boost::uint32_t _num;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  };</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html"> 78</a></span>  <span class="keyword">class </span><a class="code" href="config_8hpp.html#adc68e1c030efb88af856decedf19aedf">UHD_API</a> <a class="code" href="classuhd_1_1reusable__barrier.html">reusable_barrier</a>{</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#a1e5c380257e5815e7b512314fca1edfe"> 81</a></span>  <a class="code" href="classuhd_1_1reusable__barrier.html#a1e5c380257e5815e7b512314fca1edfe">reusable_barrier</a>():_size (0) {}</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#a27033dfc37e8876e89d2cf787c6a3787"> 83</a></span>  <a class="code" href="classuhd_1_1reusable__barrier.html#a27033dfc37e8876e89d2cf787c6a3787">reusable_barrier</a>(<span class="keyword">const</span> <span class="keywordtype">size_t</span> size):_size(size) {}</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#a27fd10e58b7a717c515f11827051b616"> 86</a></span>  <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1reusable__barrier.html#a27fd10e58b7a717c515f11827051b616">resize</a>(<span class="keyword">const</span> <span class="keywordtype">size_t</span> size){</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  _size = size;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#ac8b1c18069fba0a5c2217699f6eb16d9"> 94</a></span>  <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1reusable__barrier.html#ac8b1c18069fba0a5c2217699f6eb16d9">interrupt</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  _done.inc();</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#a1daf34cc859f6fb74bde6e4930fe3cec"> 100</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1reusable__barrier.html#a1daf34cc859f6fb74bde6e4930fe3cec">wait</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (_size == 1) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">//entry barrier with condition variable</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  _entry_counter.inc();</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  _entry_counter.cas(0, _size);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  boost::mutex::scoped_lock lock(_mutex);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">while</span> (_entry_counter.read() != 0)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  this->check_interrupt();</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  _cond.timed_wait(lock, boost::posix_time::milliseconds(1));</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  lock.unlock(); <span class="comment">//unlock before notify</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  _cond.notify_one();</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">//exit barrier to ensure known condition of entry count</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  _exit_counter.inc();</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  _exit_counter.cas(0, _size);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">while</span> (_exit_counter.read() != 0) this->check_interrupt();</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="classuhd_1_1reusable__barrier.html#ae7ed8c09a349e0be792a5c1859d1677b"> 123</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1reusable__barrier.html#ae7ed8c09a349e0be792a5c1859d1677b">wait_others</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">while</span> (_entry_counter.read() != (_size-1)) this->check_interrupt();</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">size_t</span> _size;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a> _entry_counter;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a> _exit_counter;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a> _done;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  boost::mutex _mutex;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  boost::condition_variable _cond;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">void</span> check_interrupt(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span> (_done.<a class="code" href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673">read</a>() != 0) <span class="keywordflow">throw</span> boost::thread_interrupted();</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  boost::this_thread::interruption_point();</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  boost::this_thread::yield();</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  };</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="namespaceuhd.html#a752ab8672ce0e7c168be23a4987b5cdd"> 151</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">bool</span> <a class="code" href="namespaceuhd.html#a752ab8672ce0e7c168be23a4987b5cdd">spin_wait_with_timeout</a>(</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a> &cond,</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  boost::uint32_t value,</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> timeout</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  ){</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> (cond.<a class="code" href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673">read</a>() == value) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">const</span> <a class="code" href="classuhd_1_1time__spec__t.html">time_spec_t</a> exit_time = <a class="code" href="classuhd_1_1time__spec__t.html#a28bb1e25ad03f333078bea59d21b4854">time_spec_t::get_system_time</a>() + <a class="code" href="classuhd_1_1time__spec__t.html">time_spec_t</a>(timeout);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">while</span> (cond.<a class="code" href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673">read</a>() != value){</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span> (<a class="code" href="classuhd_1_1time__spec__t.html#a28bb1e25ad03f333078bea59d21b4854">time_spec_t::get_system_time</a>() > exit_time) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  boost::this_thread::interruption_point();</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  boost::this_thread::yield();</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="classuhd_1_1simple__claimer.html"> 170</a></span>  <span class="keyword">class </span><a class="code" href="classuhd_1_1simple__claimer.html">simple_claimer</a>{</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classuhd_1_1simple__claimer.html#a17d23d8cd8751aa9212b9da02b342c36"> 172</a></span>  <a class="code" href="classuhd_1_1simple__claimer.html#a17d23d8cd8751aa9212b9da02b342c36">simple_claimer</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  this-><a class="code" href="classuhd_1_1simple__claimer.html#aab6370ab7c9d3f25ccab15ae5ca02e1a">release</a>();</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a name="l00176"></a><span class="lineno"><a class="line" href="classuhd_1_1simple__claimer.html#aab6370ab7c9d3f25ccab15ae5ca02e1a"> 176</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">void</span> <a class="code" href="classuhd_1_1simple__claimer.html#aab6370ab7c9d3f25ccab15ae5ca02e1a">release</a>(<span class="keywordtype">void</span>){</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  _locked.<a class="code" href="classuhd_1_1atomic__uint32__t.html#a9d82e64f152df723d11b62baf73d7af5">write</a>(0);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="classuhd_1_1simple__claimer.html#aade7daeb5792b80147f9bebb618c4f23"> 180</a></span>  <a class="code" href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a> <span class="keywordtype">bool</span> <a class="code" href="classuhd_1_1simple__claimer.html#aade7daeb5792b80147f9bebb618c4f23">claim_with_wait</a>(<span class="keyword">const</span> <span class="keywordtype">double</span> timeout){</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceuhd.html#a752ab8672ce0e7c168be23a4987b5cdd">spin_wait_with_timeout</a>(_locked, 0, timeout)){</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  _locked.<a class="code" href="classuhd_1_1atomic__uint32__t.html#a9d82e64f152df723d11b62baf73d7af5">write</a>(1);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="classuhd_1_1atomic__uint32__t.html">atomic_uint32_t</a> _locked;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  };</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> } <span class="comment">//namespace uhd</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_UHD_UTILS_ATOMIC_HPP */</span><span class="preprocessor"></span></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_ab9e7c93752f3c089b6c426f088152673"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#ab9e7c93752f3c089b6c426f088152673">uhd::atomic_uint32_t::read</a></div><div class="ttdeci">UHD_INLINE boost::uint32_t read(void)</div><div class="ttdoc">Gets the current value of the atomic integer. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:57</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_a1daf34cc859f6fb74bde6e4930fe3cec"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#a1daf34cc859f6fb74bde6e4930fe3cec">uhd::reusable_barrier::wait</a></div><div class="ttdeci">UHD_INLINE void wait(void)</div><div class="ttdoc">Wait on the barrier condition. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:100</div></div>
<div class="ttc" id="classuhd_1_1simple__claimer_html_aab6370ab7c9d3f25ccab15ae5ca02e1a"><div class="ttname"><a href="classuhd_1_1simple__claimer.html#aab6370ab7c9d3f25ccab15ae5ca02e1a">uhd::simple_claimer::release</a></div><div class="ttdeci">UHD_INLINE void release(void)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:176</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html">uhd::reusable_barrier</a></div><div class="ttdef"><b>Definition:</b> atomic.hpp:78</div></div>
<div class="ttc" id="classuhd_1_1time__spec__t_html"><div class="ttname"><a href="classuhd_1_1time__spec__t.html">uhd::time_spec_t</a></div><div class="ttdef"><b>Definition:</b> time_spec.hpp:39</div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html">uhd::atomic_uint32_t</a></div><div class="ttdoc">A 32-bit integer that can be atomically accessed. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:38</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_ae7ed8c09a349e0be792a5c1859d1677b"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#ae7ed8c09a349e0be792a5c1859d1677b">uhd::reusable_barrier::wait_others</a></div><div class="ttdeci">UHD_INLINE void wait_others(void)</div><div class="ttdoc">Wait on the barrier condition. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:123</div></div>
<div class="ttc" id="config_8hpp_html"><div class="ttname"><a href="config_8hpp.html">config.hpp</a></div></div>
<div class="ttc" id="namespaceuhd_html_a752ab8672ce0e7c168be23a4987b5cdd"><div class="ttname"><a href="namespaceuhd.html#a752ab8672ce0e7c168be23a4987b5cdd">uhd::spin_wait_with_timeout</a></div><div class="ttdeci">UHD_INLINE bool spin_wait_with_timeout(atomic_uint32_t &cond, boost::uint32_t value, const double timeout)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:151</div></div>
<div class="ttc" id="classuhd_1_1time__spec__t_html_a28bb1e25ad03f333078bea59d21b4854"><div class="ttname"><a href="classuhd_1_1time__spec__t.html#a28bb1e25ad03f333078bea59d21b4854">uhd::time_spec_t::get_system_time</a></div><div class="ttdeci">static time_spec_t get_system_time(void)</div></div>
<div class="ttc" id="config_8hpp_html_adc68e1c030efb88af856decedf19aedf"><div class="ttname"><a href="config_8hpp.html#adc68e1c030efb88af856decedf19aedf">UHD_API</a></div><div class="ttdeci">#define UHD_API</div><div class="ttdef"><b>Definition:</b> config.hpp:79</div></div>
<div class="ttc" id="namespaceuhd_html"><div class="ttname"><a href="namespaceuhd.html">uhd</a></div><div class="ttdef"><b>Definition:</b> convert.hpp:28</div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_adca8dceff939c4497c309ae5407c6ca3"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#adca8dceff939c4497c309ae5407c6ca3">uhd::atomic_uint32_t::cas</a></div><div class="ttdeci">UHD_INLINE boost::uint32_t cas(boost::uint32_t newval, boost::uint32_t cmp)</div><div class="ttdoc">Compare with cmp, swap with newval if same, return old value. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:47</div></div>
<div class="ttc" id="classuhd_1_1simple__claimer_html_aade7daeb5792b80147f9bebb618c4f23"><div class="ttname"><a href="classuhd_1_1simple__claimer.html#aade7daeb5792b80147f9bebb618c4f23">uhd::simple_claimer::claim_with_wait</a></div><div class="ttdeci">UHD_INLINE bool claim_with_wait(const double timeout)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:180</div></div>
<div class="ttc" id="config_8hpp_html_a8b9b549161081d54c2161046649a0323"><div class="ttname"><a href="config_8hpp.html#a8b9b549161081d54c2161046649a0323">UHD_INLINE</a></div><div class="ttdeci">#define UHD_INLINE</div><div class="ttdef"><b>Definition:</b> config.hpp:69</div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_a94a4bc4493ec3861f213e97fa3311264"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#a94a4bc4493ec3861f213e97fa3311264">uhd::atomic_uint32_t::atomic_uint32_t</a></div><div class="ttdeci">UHD_INLINE atomic_uint32_t(void)</div><div class="ttdoc">Create a new atomic 32-bit integer, initialized to zero. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:42</div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_a9d82e64f152df723d11b62baf73d7af5"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#a9d82e64f152df723d11b62baf73d7af5">uhd::atomic_uint32_t::write</a></div><div class="ttdeci">UHD_INLINE void write(const boost::uint32_t newval)</div><div class="ttdoc">Sets the atomic integer to a new value. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:52</div></div>
<div class="ttc" id="time__spec_8hpp_html"><div class="ttname"><a href="time__spec_8hpp.html">time_spec.hpp</a></div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_a02c1e469a7773b16550355d9d0fc2522"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#a02c1e469a7773b16550355d9d0fc2522">uhd::atomic_uint32_t::inc</a></div><div class="ttdeci">UHD_INLINE boost::uint32_t inc(void)</div><div class="ttdoc">Increment by 1 and return the old value. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:62</div></div>
<div class="ttc" id="classuhd_1_1simple__claimer_html_a17d23d8cd8751aa9212b9da02b342c36"><div class="ttname"><a href="classuhd_1_1simple__claimer.html#a17d23d8cd8751aa9212b9da02b342c36">uhd::simple_claimer::simple_claimer</a></div><div class="ttdeci">simple_claimer(void)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:172</div></div>
<div class="ttc" id="classuhd_1_1atomic__uint32__t_html_a712f1d0e775ff2ff6430fb1fff037342"><div class="ttname"><a href="classuhd_1_1atomic__uint32__t.html#a712f1d0e775ff2ff6430fb1fff037342">uhd::atomic_uint32_t::dec</a></div><div class="ttdeci">UHD_INLINE boost::uint32_t dec(void)</div><div class="ttdoc">Decrement by 1 and return the old value. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:67</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_a27fd10e58b7a717c515f11827051b616"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#a27fd10e58b7a717c515f11827051b616">uhd::reusable_barrier::resize</a></div><div class="ttdeci">void resize(const size_t size)</div><div class="ttdoc">Resize the barrier for N threads. </div><div class="ttdef"><b>Definition:</b> atomic.hpp:86</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_a27033dfc37e8876e89d2cf787c6a3787"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#a27033dfc37e8876e89d2cf787c6a3787">uhd::reusable_barrier::reusable_barrier</a></div><div class="ttdeci">reusable_barrier(const size_t size)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:83</div></div>
<div class="ttc" id="classuhd_1_1simple__claimer_html"><div class="ttname"><a href="classuhd_1_1simple__claimer.html">uhd::simple_claimer</a></div><div class="ttdef"><b>Definition:</b> atomic.hpp:170</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_a1e5c380257e5815e7b512314fca1edfe"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#a1e5c380257e5815e7b512314fca1edfe">uhd::reusable_barrier::reusable_barrier</a></div><div class="ttdeci">reusable_barrier()</div><div class="ttdef"><b>Definition:</b> atomic.hpp:81</div></div>
<div class="ttc" id="classuhd_1_1reusable__barrier_html_ac8b1c18069fba0a5c2217699f6eb16d9"><div class="ttname"><a href="classuhd_1_1reusable__barrier.html#ac8b1c18069fba0a5c2217699f6eb16d9">uhd::reusable_barrier::interrupt</a></div><div class="ttdeci">void interrupt(void)</div><div class="ttdef"><b>Definition:</b> atomic.hpp:94</div></div>
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