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<li class="navelem"><a class="el" href="namespaceentt.html">entt</a></li><li class="navelem"><a class="el" href="classentt_1_1process.html">process</a></li> </ul>
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<a href="#pub-types">Public Types</a> |
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<a href="classentt_1_1process-members.html">List of all members</a> </div>
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<div class="title">entt::process< Derived, Delta > Class Template Reference</div> </div>
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<p>Base class for processes.
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<a href="classentt_1_1process.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="process_8hpp_source.html">process.hpp</a>></code></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
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Public Types</h2></td></tr>
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<tr class="memitem:a625b574ea6d83e3a4933acc3d0279295"><td class="memItemLeft" align="right" valign="top"><a id="a625b574ea6d83e3a4933acc3d0279295"></a>
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using </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a625b574ea6d83e3a4933acc3d0279295">delta_type</a> = Delta</td></tr>
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<tr class="memdesc:a625b574ea6d83e3a4933acc3d0279295"><td class="mdescLeft"> </td><td class="mdescRight">Type used to provide elapsed time. <br /></td></tr>
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<tr class="separator:a625b574ea6d83e3a4933acc3d0279295"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a2baf1b6aef37c1420a77cd3f8eadcf79"><td class="memItemLeft" align="right" valign="top"><a id="a2baf1b6aef37c1420a77cd3f8eadcf79"></a>
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a2baf1b6aef37c1420a77cd3f8eadcf79">~process</a> ()</td></tr>
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<tr class="memdesc:a2baf1b6aef37c1420a77cd3f8eadcf79"><td class="mdescLeft"> </td><td class="mdescRight">Default destructor. <br /></td></tr>
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<tr class="separator:a2baf1b6aef37c1420a77cd3f8eadcf79"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af27d28af408f1dfb260b8fe976e66ea3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#af27d28af408f1dfb260b8fe976e66ea3">abort</a> (const bool immediately=false)</td></tr>
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<tr class="memdesc:af27d28af408f1dfb260b8fe976e66ea3"><td class="mdescLeft"> </td><td class="mdescRight">Aborts a process if it's still alive. <a href="classentt_1_1process.html#af27d28af408f1dfb260b8fe976e66ea3">More...</a><br /></td></tr>
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<tr class="separator:af27d28af408f1dfb260b8fe976e66ea3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1a3e1f6d09d8bca974ed383def805f3d"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a1a3e1f6d09d8bca974ed383def805f3d">alive</a> () const</td></tr>
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<tr class="memdesc:a1a3e1f6d09d8bca974ed383def805f3d"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if a process is either running or paused. <a href="classentt_1_1process.html#a1a3e1f6d09d8bca974ed383def805f3d">More...</a><br /></td></tr>
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<tr class="separator:a1a3e1f6d09d8bca974ed383def805f3d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5de9babd993af32324cf044102e0c5b2"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a5de9babd993af32324cf044102e0c5b2">finished</a> () const</td></tr>
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<tr class="memdesc:a5de9babd993af32324cf044102e0c5b2"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if a process is already terminated. <a href="classentt_1_1process.html#a5de9babd993af32324cf044102e0c5b2">More...</a><br /></td></tr>
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<tr class="separator:a5de9babd993af32324cf044102e0c5b2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a80e3a0f9dd6724683946f88fb519ec75"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a80e3a0f9dd6724683946f88fb519ec75">paused</a> () const</td></tr>
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<tr class="memdesc:a80e3a0f9dd6724683946f88fb519ec75"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if a process is currently paused. <a href="classentt_1_1process.html#a80e3a0f9dd6724683946f88fb519ec75">More...</a><br /></td></tr>
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<tr class="separator:a80e3a0f9dd6724683946f88fb519ec75"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a871cc9aa013c2aba9f7c0712a5fe3b98"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a871cc9aa013c2aba9f7c0712a5fe3b98">rejected</a> () const</td></tr>
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<tr class="memdesc:a871cc9aa013c2aba9f7c0712a5fe3b98"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if a process terminated with errors. <a href="classentt_1_1process.html#a871cc9aa013c2aba9f7c0712a5fe3b98">More...</a><br /></td></tr>
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<tr class="separator:a871cc9aa013c2aba9f7c0712a5fe3b98"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aacc7fe0ef3265113079c70ff8cd9478d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#aacc7fe0ef3265113079c70ff8cd9478d">tick</a> (const Delta delta, void *data=nullptr)</td></tr>
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<tr class="memdesc:aacc7fe0ef3265113079c70ff8cd9478d"><td class="mdescLeft"> </td><td class="mdescRight">Updates a process and its internal state if required. <a href="classentt_1_1process.html#aacc7fe0ef3265113079c70ff8cd9478d">More...</a><br /></td></tr>
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<tr class="separator:aacc7fe0ef3265113079c70ff8cd9478d"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
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Protected Member Functions</h2></td></tr>
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<tr class="memitem:a3b71fd166a1e6b42ea76f2e92bfa5edc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a3b71fd166a1e6b42ea76f2e92bfa5edc">succeed</a> ()</td></tr>
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<tr class="memdesc:a3b71fd166a1e6b42ea76f2e92bfa5edc"><td class="mdescLeft"> </td><td class="mdescRight">Terminates a process with success if it's still alive. <a href="classentt_1_1process.html#a3b71fd166a1e6b42ea76f2e92bfa5edc">More...</a><br /></td></tr>
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<tr class="separator:a3b71fd166a1e6b42ea76f2e92bfa5edc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a43cb8f82148fb6d688fcc9eca358892a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a43cb8f82148fb6d688fcc9eca358892a">fail</a> ()</td></tr>
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<tr class="memdesc:a43cb8f82148fb6d688fcc9eca358892a"><td class="mdescLeft"> </td><td class="mdescRight">Terminates a process with errors if it's still alive. <a href="classentt_1_1process.html#a43cb8f82148fb6d688fcc9eca358892a">More...</a><br /></td></tr>
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<tr class="separator:a43cb8f82148fb6d688fcc9eca358892a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a46b356ef2c1f09818b4dc546721f49fa"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a46b356ef2c1f09818b4dc546721f49fa">pause</a> ()</td></tr>
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<tr class="memdesc:a46b356ef2c1f09818b4dc546721f49fa"><td class="mdescLeft"> </td><td class="mdescRight">Stops a process if it's in a running state. <a href="classentt_1_1process.html#a46b356ef2c1f09818b4dc546721f49fa">More...</a><br /></td></tr>
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<tr class="separator:a46b356ef2c1f09818b4dc546721f49fa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a828dd9665380d1ac41b7c14367e51835"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classentt_1_1process.html#a828dd9665380d1ac41b7c14367e51835">unpause</a> ()</td></tr>
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<tr class="memdesc:a828dd9665380d1ac41b7c14367e51835"><td class="mdescLeft"> </td><td class="mdescRight">Restarts a process if it's paused. <a href="classentt_1_1process.html#a828dd9665380d1ac41b7c14367e51835">More...</a><br /></td></tr>
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<tr class="separator:a828dd9665380d1ac41b7c14367e51835"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><h3>template<typename Derived, typename Delta><br />
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class entt::process< Derived, Delta ></h3>
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<p>Base class for processes. </p>
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<p>This class stays true to the CRTP idiom. Derived classes must specify what's the intended type for elapsed times.<br />
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A process should expose publicly the following member functions whether required:</p>
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<ul>
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<li><div class="fragment"><div class="line"><span class="keywordtype">void</span> update(Delta, <span class="keywordtype">void</span> *);</div>
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</div><!-- fragment --><p class="startli">It's invoked once per tick until a process is explicitly aborted or it terminates either with or without errors. Even though it's not mandatory to declare this member function, as a rule of thumb each process should at least define it to work properly. The <code>void *</code> parameter is an opaque pointer to user data (if any) forwarded directly to the process during an update.</p>
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</li>
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<li><div class="fragment"><div class="line"><span class="keywordtype">void</span> init();</div>
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</div><!-- fragment --><p class="startli">It's invoked when the process joins the running queue of a scheduler. This happens as soon as it's attached to the scheduler if the process is a top level one, otherwise when it replaces its parent if the process is a continuation.</p>
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</li>
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<li><div class="fragment"><div class="line"><span class="keywordtype">void</span> succeeded();</div>
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</div><!-- fragment --><p class="startli">It's invoked in case of success, immediately after an update and during the same tick.</p>
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</li>
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<li><div class="fragment"><div class="line"><span class="keywordtype">void</span> failed();</div>
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</div><!-- fragment --><p class="startli">It's invoked in case of errors, immediately after an update and during the same tick.</p>
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</li>
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<li><div class="fragment"><div class="line"><span class="keywordtype">void</span> aborted();</div>
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</div><!-- fragment --><p class="startli">It's invoked only if a process is explicitly aborted. There is no guarantee that it executes in the same tick, this depends solely on whether the process is aborted immediately or not.</p>
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</li>
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</ul>
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<p>Derived classes can change the internal state of a process by invoking the <code>succeed</code> and <code>fail</code> protected member functions and even pause or unpause the process itself.</p>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="classentt_1_1scheduler.html" title="Cooperative scheduler for processes.">scheduler</a></dd></dl>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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<tr><td class="paramname">Derived</td><td>Actual type of process that extends the class template. </td></tr>
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<tr><td class="paramname">Delta</td><td>Type to use to provide elapsed time. </td></tr>
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</table>
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</dd>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00071">71</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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</div><h2 class="groupheader">Member Function Documentation</h2>
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<a id="af27d28af408f1dfb260b8fe976e66ea3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af27d28af408f1dfb260b8fe976e66ea3">◆ </a></span>abort()</h2>
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template<typename Derived , typename Delta > </div>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::abort </td>
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<td>(</td>
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<td class="paramtype">const bool </td>
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<td class="paramname"><em>immediately</em> = <code>false</code></td><td>)</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Aborts a process if it's still alive. </p>
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<p>The function is idempotent and it does nothing if the process isn't alive.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">immediately</td><td>Requests an immediate operation. </td></tr>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00181">181</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<a id="a1a3e1f6d09d8bca974ed383def805f3d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a1a3e1f6d09d8bca974ed383def805f3d">◆ </a></span>alive()</h2>
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template<typename Derived , typename Delta > </div>
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<td class="memname">bool <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::alive </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td> const</td>
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<p>Returns true if a process is either running or paused. </p>
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<dl class="section return"><dt>Returns</dt><dd>True if the process is still alive, false otherwise. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00195">195</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<a id="a43cb8f82148fb6d688fcc9eca358892a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a43cb8f82148fb6d688fcc9eca358892a">◆ </a></span>fail()</h2>
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template<typename Derived , typename Delta > </div>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::fail </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<p>Terminates a process with errors if it's still alive. </p>
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<p>The function is idempotent and it does nothing if the process isn't alive. </p>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00134">134</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5de9babd993af32324cf044102e0c5b2">◆ </a></span>finished()</h2>
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template<typename Derived , typename Delta > </div>
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<td class="memname">bool <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::finished </td>
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<td>(</td>
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<p>Returns true if a process is already terminated. </p>
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<dl class="section return"><dt>Returns</dt><dd>True if the process is terminated, false otherwise. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00203">203</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<a id="a46b356ef2c1f09818b4dc546721f49fa"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a46b356ef2c1f09818b4dc546721f49fa">◆ </a></span>pause()</h2>
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template<typename Derived , typename Delta > </div>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::pause </td>
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<td>(</td>
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<p>Stops a process if it's in a running state. </p>
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<p>The function is idempotent and it does nothing if the process isn't running. </p>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00146">146</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a80e3a0f9dd6724683946f88fb519ec75">◆ </a></span>paused()</h2>
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<td class="memname">bool <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::paused </td>
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<p>Returns true if a process is currently paused. </p>
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<dl class="section return"><dt>Returns</dt><dd>True if the process is paused, false otherwise. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00211">211</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<a id="a871cc9aa013c2aba9f7c0712a5fe3b98"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a871cc9aa013c2aba9f7c0712a5fe3b98">◆ </a></span>rejected()</h2>
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<p>Returns true if a process terminated with errors. </p>
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<dl class="section return"><dt>Returns</dt><dd>True if the process terminated with errors, false otherwise. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00219">219</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3b71fd166a1e6b42ea76f2e92bfa5edc">◆ </a></span>succeed()</h2>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::succeed </td>
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<p>Terminates a process with success if it's still alive. </p>
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<p>The function is idempotent and it does nothing if the process isn't alive. </p>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00122">122</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aacc7fe0ef3265113079c70ff8cd9478d">◆ </a></span>tick()</h2>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::tick </td>
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<p>Updates a process and its internal state if required. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">delta</td><td>Elapsed time. </td></tr>
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<tr><td class="paramname">data</td><td>Optional data. </td></tr>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00228">228</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<a id="a828dd9665380d1ac41b7c14367e51835"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a828dd9665380d1ac41b7c14367e51835">◆ </a></span>unpause()</h2>
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<td class="memname">void <a class="el" href="classentt_1_1process.html">entt::process</a>< Derived, Delta >::unpause </td>
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<p>Restarts a process if it's paused. </p>
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<p>The function is idempotent and it does nothing if the process isn't paused. </p>
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<p class="definition">Definition at line <a class="el" href="process_8hpp_source.html#l00158">158</a> of file <a class="el" href="process_8hpp_source.html">process.hpp</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li>src/entt/process/<a class="el" href="process_8hpp_source.html">process.hpp</a></li>
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</ul>
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