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<a href="event_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright © 2024 Apple Inc.</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#pragma once</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;memory&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;stdexcept&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &quot;<a class="code" href="stream_8h.html">mlx/stream.h</a>&quot;</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="namespacemlx_1_1core.html">mlx::core</a> {</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="foldopen" id="foldopen00011" data-start="{" data-end="};">
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html"> 11</a></span><span class="keyword">class </span><a class="code hl_class" href="classmlx_1_1core_1_1_event.html">Event</a> {</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a98f1f98d6cac43ddb682522acdce63d5"> 13</a></span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a98f1f98d6cac43ddb682522acdce63d5">Event</a>() {};</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a13e4835f2ffb2cc22e29148a448ea184"> 15</a></span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a13e4835f2ffb2cc22e29148a448ea184">Event</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structmlx_1_1core_1_1_stream.html">Stream</a>&amp; steam);</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// Wait for the event to be signaled at its curent value</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a634afd918e6ed847f354531ba9f48252"> 18</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a634afd918e6ed847f354531ba9f48252">wait</a>();</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// Signal the event at its current value</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a65a858445506a61be5889ae0e3651b89"> 21</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a65a858445506a61be5889ae0e3651b89">signal</a>();</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// Check if the event is valid</span></div>
<div class="foldopen" id="foldopen00024" data-start="{" data-end="}">
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a60f2883c2979e979d87b1d313a5a563e"> 24</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a60f2883c2979e979d87b1d313a5a563e">valid</a>() {</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">return</span> event_ != <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> };</div>
</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="foldopen" id="foldopen00028" data-start="{" data-end="}">
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#afaa05ba97269bd5bfd9a2a665d4cc15b"> 28</a></span> uint64_t <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#afaa05ba97269bd5bfd9a2a665d4cc15b">value</a>() {</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">return</span> value_;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> };</div>
</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="foldopen" id="foldopen00032" data-start="{" data-end="}">
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a0d077b11f4b28f882b42440b7ac6d40d"> 32</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a0d077b11f4b28f882b42440b7ac6d40d">set_value</a>(uint64_t v) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> value_ = v;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> };</div>
</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="foldopen" id="foldopen00036" data-start="{" data-end="}">
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a2567b067cb4c7828962363844f67176e"> 36</a></span> <span class="keyword">const</span> <a class="code hl_struct" href="structmlx_1_1core_1_1_stream.html">Stream</a>&amp; <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a2567b067cb4c7828962363844f67176e">stream</a>() {</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a60f2883c2979e979d87b1d313a5a563e">valid</a>()) {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">throw</span> std::runtime_error(</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="stringliteral">&quot;[Event::stream] Cannot access stream on invalid event.&quot;</span>);</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">return</span> stream_;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> };</div>
</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="foldopen" id="foldopen00044" data-start="{" data-end="}">
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="classmlx_1_1core_1_1_event.html#a84fd13b51b6622e35b4bfbbcd0c9be4f"> 44</a></span> <span class="keyword">const</span> std::shared_ptr&lt;void&gt;&amp; <a class="code hl_function" href="classmlx_1_1core_1_1_event.html#a84fd13b51b6622e35b4bfbbcd0c9be4f">raw_event</a>() {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">return</span> event_;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> };</div>
</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// Default constructed stream should never be used</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// since the event is not yet valid</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <a class="code hl_struct" href="structmlx_1_1core_1_1_stream.html">Stream</a> stream_{0, <a class="code hl_variable" href="structmlx_1_1core_1_1_device.html#a69ee81924251dec96f1945c9d91506fd">Device::cpu</a>};</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> std::shared_ptr&lt;void&gt; event_{<span class="keyword">nullptr</span>};</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> uint64_t value_{0};</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span>};</div>
</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>} <span class="comment">// namespace mlx::core</span></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html">mlx::core::Event</a></div><div class="ttdef"><b>Definition</b> event.h:11</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a0d077b11f4b28f882b42440b7ac6d40d"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a0d077b11f4b28f882b42440b7ac6d40d">mlx::core::Event::set_value</a></div><div class="ttdeci">void set_value(uint64_t v)</div><div class="ttdef"><b>Definition</b> event.h:32</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a13e4835f2ffb2cc22e29148a448ea184"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a13e4835f2ffb2cc22e29148a448ea184">mlx::core::Event::Event</a></div><div class="ttdeci">Event(const Stream &amp;steam)</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a2567b067cb4c7828962363844f67176e"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a2567b067cb4c7828962363844f67176e">mlx::core::Event::stream</a></div><div class="ttdeci">const Stream &amp; stream()</div><div class="ttdef"><b>Definition</b> event.h:36</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a60f2883c2979e979d87b1d313a5a563e"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a60f2883c2979e979d87b1d313a5a563e">mlx::core::Event::valid</a></div><div class="ttdeci">bool valid()</div><div class="ttdef"><b>Definition</b> event.h:24</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a634afd918e6ed847f354531ba9f48252"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a634afd918e6ed847f354531ba9f48252">mlx::core::Event::wait</a></div><div class="ttdeci">void wait()</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a65a858445506a61be5889ae0e3651b89"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a65a858445506a61be5889ae0e3651b89">mlx::core::Event::signal</a></div><div class="ttdeci">void signal()</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a84fd13b51b6622e35b4bfbbcd0c9be4f"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a84fd13b51b6622e35b4bfbbcd0c9be4f">mlx::core::Event::raw_event</a></div><div class="ttdeci">const std::shared_ptr&lt; void &gt; &amp; raw_event()</div><div class="ttdef"><b>Definition</b> event.h:44</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_a98f1f98d6cac43ddb682522acdce63d5"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#a98f1f98d6cac43ddb682522acdce63d5">mlx::core::Event::Event</a></div><div class="ttdeci">Event()</div><div class="ttdef"><b>Definition</b> event.h:13</div></div>
<div class="ttc" id="aclassmlx_1_1core_1_1_event_html_afaa05ba97269bd5bfd9a2a665d4cc15b"><div class="ttname"><a href="classmlx_1_1core_1_1_event.html#afaa05ba97269bd5bfd9a2a665d4cc15b">mlx::core::Event::value</a></div><div class="ttdeci">uint64_t value()</div><div class="ttdef"><b>Definition</b> event.h:28</div></div>
<div class="ttc" id="anamespacemlx_1_1core_html"><div class="ttname"><a href="namespacemlx_1_1core.html">mlx::core</a></div><div class="ttdef"><b>Definition</b> allocator.h:7</div></div>
<div class="ttc" id="astream_8h_html"><div class="ttname"><a href="stream_8h.html">stream.h</a></div></div>
<div class="ttc" id="astructmlx_1_1core_1_1_device_html_a69ee81924251dec96f1945c9d91506fd"><div class="ttname"><a href="structmlx_1_1core_1_1_device.html#a69ee81924251dec96f1945c9d91506fd">mlx::core::Device::cpu</a></div><div class="ttdeci">static constexpr DeviceType cpu</div><div class="ttdef"><b>Definition</b> device.h:13</div></div>
<div class="ttc" id="astructmlx_1_1core_1_1_stream_html"><div class="ttname"><a href="structmlx_1_1core_1_1_stream.html">mlx::core::Stream</a></div><div class="ttdef"><b>Definition</b> stream.h:9</div></div>
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