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&#160;<span id="projectnumber">5.8.0</span>
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<p><a class="el" href="classfsdk_1_1_future.html" title="Future class to support asynchronous data retrieval Look into std::future semantics to understand it...">Future</a> class to support asynchronous data retrieval Look into std::future semantics to understand it.
<a href="classfsdk_1_1_future.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="_future_8h_source.html">Future.h</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for fsdk::Future&lt; T &gt;:</div>
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<area href="classfsdk_1_1_noncopyable.html" title="Helper class to block copy operator&amp;constructor of its descendants. " alt="fsdk::Noncopyable" shape="rect" coords="0,0,116,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ab792dd0d1b8eac18d3a0d875d215575f"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab792dd0d1b8eac18d3a0d875d215575f"></a>
using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#ab792dd0d1b8eac18d3a0d875d215575f">USec</a> = int32_t</td></tr>
<tr class="memdesc:ab792dd0d1b8eac18d3a0d875d215575f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Alias for micro seconds type. <br/></td></tr>
<tr class="separator:ab792dd0d1b8eac18d3a0d875d215575f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9a5efae2498601862b9514b6d58661c6"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9a5efae2498601862b9514b6d58661c6"></a>
using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a9a5efae2498601862b9514b6d58661c6">Error</a> = <a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">FutureError</a></td></tr>
<tr class="memdesc:a9a5efae2498601862b9514b6d58661c6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Alias for associated error type. <br/></td></tr>
<tr class="separator:a9a5efae2498601862b9514b6d58661c6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a38f572195de92595cbc6c847fb7470ec"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a38f572195de92595cbc6c847fb7470ec"></a>
using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a38f572195de92595cbc6c847fb7470ec">DataType</a> = T</td></tr>
<tr class="memdesc:a38f572195de92595cbc6c847fb7470ec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Alias for stored data type. <br/></td></tr>
<tr class="separator:a38f572195de92595cbc6c847fb7470ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a88569ef592c8f9793067cb1139123aaf"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a88569ef592c8f9793067cb1139123aaf"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a88569ef592c8f9793067cb1139123aaf">Future</a> () noexcept</td></tr>
<tr class="memdesc:a88569ef592c8f9793067cb1139123aaf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor for empty useless shell of a future. <br/></td></tr>
<tr class="separator:a88569ef592c8f9793067cb1139123aaf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aad456b58442c956f349975302ebf9c8e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aad456b58442c956f349975302ebf9c8e"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>Future</b> (<a class="el" href="classfsdk_1_1_future.html">Future</a> &amp;&amp;mv) noexcept</td></tr>
<tr class="separator:aad456b58442c956f349975302ebf9c8e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a942829f2284cae1feebbdeae05e9041d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a942829f2284cae1feebbdeae05e9041d"></a>
<a class="el" href="classfsdk_1_1_future.html">Future</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="classfsdk_1_1_future.html">Future</a> &amp;&amp;) noexcept</td></tr>
<tr class="separator:a942829f2284cae1feebbdeae05e9041d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaaed4d6e1ad65c21ac4ac4e547e93f53"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt; <a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#aaaed4d6e1ad65c21ac4ac4e547e93f53">cancel</a> (const <a class="el" href="namespacefsdk.html#a0f4cbbc8c61f0127bd75695e76869860">ExecutionPolicy</a> policy) noexcept</td></tr>
<tr class="memdesc:aaaed4d6e1ad65c21ac4ac4e547e93f53"><td class="mdescLeft">&#160;</td><td class="mdescRight">Cancel method. Might be called on some heavy long running task that is not needed anymore. Only makes sense if underlying state is Promised. <a href="#aaaed4d6e1ad65c21ac4ac4e547e93f53">More...</a><br/></td></tr>
<tr class="separator:aaaed4d6e1ad65c21ac4ac4e547e93f53"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2b52e6264dc9fb54d143712efdb783b8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacefsdk.html#a48fe9106b62424a924a260074cd2c82b">FuturePromiseState</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a2b52e6264dc9fb54d143712efdb783b8">state</a> () const noexcept</td></tr>
<tr class="memdesc:a2b52e6264dc9fb54d143712efdb783b8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns current state of future-promise pair. <a href="#a2b52e6264dc9fb54d143712efdb783b8">More...</a><br/></td></tr>
<tr class="separator:a2b52e6264dc9fb54d143712efdb783b8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac30c21fa31a1d66e732bfffada32e03a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt; <a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#ac30c21fa31a1d66e732bfffada32e03a">takeInto</a> (<a class="el" href="classfsdk_1_1_future.html#a38f572195de92595cbc6c847fb7470ec">DataType</a> &amp;container) noexcept</td></tr>
<tr class="memdesc:ac30c21fa31a1d66e732bfffada32e03a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method to retrieve data out of fulfilled future. Only makes sense if current state is Fulfilled. <a href="#ac30c21fa31a1d66e732bfffada32e03a">More...</a><br/></td></tr>
<tr class="separator:ac30c21fa31a1d66e732bfffada32e03a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7e85628150597362aad032ea8029dcf9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt; <a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a7e85628150597362aad032ea8029dcf9">wait</a> () const noexcept</td></tr>
<tr class="memdesc:a7e85628150597362aad032ea8029dcf9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Blocks called thread until internal state changes to Fulfilled, Canceled or Failed. <a href="#a7e85628150597362aad032ea8029dcf9">More...</a><br/></td></tr>
<tr class="separator:a7e85628150597362aad032ea8029dcf9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab1da1098643943411046bbe6a718fe74"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt; <a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#ab1da1098643943411046bbe6a718fe74">waitFor</a> (const <a class="el" href="classfsdk_1_1_future.html#ab792dd0d1b8eac18d3a0d875d215575f">USec</a> usec) const noexcept</td></tr>
<tr class="memdesc:ab1da1098643943411046bbe6a718fe74"><td class="mdescLeft">&#160;</td><td class="mdescRight">Blocks called thread until internal state changes to Fulfilled, Canceled or Failed, OR passed time is over. <a href="#ab1da1098643943411046bbe6a718fe74">More...</a><br/></td></tr>
<tr class="separator:ab1da1098643943411046bbe6a718fe74"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a7f7977f3ac4805fda79869a23f9f8686"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7f7977f3ac4805fda79869a23f9f8686"></a>
static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classfsdk_1_1_future.html#a7f7977f3ac4805fda79869a23f9f8686">swap</a> (<a class="el" href="classfsdk_1_1_future.html">Future</a> &amp;first, <a class="el" href="classfsdk_1_1_future.html">Future</a> &amp;second) noexcept</td></tr>
<tr class="memdesc:a7f7977f3ac4805fda79869a23f9f8686"><td class="mdescLeft">&#160;</td><td class="mdescRight">Static method that swaps internal data between two passed futures. <br/></td></tr>
<tr class="separator:a7f7977f3ac4805fda79869a23f9f8686"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename T&gt;<br/>
class fsdk::Future&lt; T &gt;</h3>
<p><a class="el" href="classfsdk_1_1_future.html" title="Future class to support asynchronous data retrieval Look into std::future semantics to understand it...">Future</a> class to support asynchronous data retrieval Look into std::future semantics to understand it. </p>
<dl class="section note"><dt>Note</dt><dd>Is not instantiable using this header only. </dd></dl>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>data type to store. </td></tr>
</table>
</dd>
</dl>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="aaaed4d6e1ad65c21ac4ac4e547e93f53"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename T &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt;<a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a>&gt; <a class="el" href="classfsdk_1_1_future.html">fsdk::Future</a>&lt; T &gt;::cancel </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="namespacefsdk.html#a0f4cbbc8c61f0127bd75695e76869860">ExecutionPolicy</a>&#160;</td>
<td class="paramname"><em>policy</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Cancel method. Might be called on some heavy long running task that is not needed anymore. Only makes sense if underlying state is Promised. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">policy</td><td>Policy on how to behave: block till state becomes Canceled or run async. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="structfsdk_1_1_result.html" title="A structure that encapsulates an action result enumeration. ">Result</a> type containing </dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classfsdk_1_1_future.html#a9a5efae2498601862b9514b6d58661c6" title="Alias for associated error type. ">Error</a> code. </dd></dl>
</div>
</div>
<a class="anchor" id="a2b52e6264dc9fb54d143712efdb783b8"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename T &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="namespacefsdk.html#a48fe9106b62424a924a260074cd2c82b">FuturePromiseState</a> <a class="el" href="classfsdk_1_1_future.html">fsdk::Future</a>&lt; T &gt;::state </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Returns current state of future-promise pair. </p>
<dl class="section return"><dt>Returns</dt><dd>Current state </dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="namespacefsdk.html#a48fe9106b62424a924a260074cd2c82b" title="Enumeration of possible future or promise states. ">FuturePromiseState</a>. </dd></dl>
</div>
</div>
<a class="anchor" id="ac30c21fa31a1d66e732bfffada32e03a"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename T &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt;<a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a>&gt; <a class="el" href="classfsdk_1_1_future.html">fsdk::Future</a>&lt; T &gt;::takeInto </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classfsdk_1_1_future.html#a38f572195de92595cbc6c847fb7470ec">DataType</a> &amp;&#160;</td>
<td class="paramname"><em>container</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Method to retrieve data out of fulfilled future. Only makes sense if current state is Fulfilled. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">container</td><td>Reference to DataType object to fill with future' data. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="structfsdk_1_1_result.html" title="A structure that encapsulates an action result enumeration. ">Result</a> type containing </dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classfsdk_1_1_future.html#a9a5efae2498601862b9514b6d58661c6" title="Alias for associated error type. ">Error</a> code. </dd></dl>
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<div class="memtemplate">
template&lt;typename T &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt;<a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a>&gt; <a class="el" href="classfsdk_1_1_future.html">fsdk::Future</a>&lt; T &gt;::wait </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<p>Blocks called thread until internal state changes to Fulfilled, Canceled or Failed. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="structfsdk_1_1_result.html" title="A structure that encapsulates an action result enumeration. ">Result</a> type containing </dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classfsdk_1_1_future.html#a9a5efae2498601862b9514b6d58661c6" title="Alias for associated error type. ">Error</a> code. </dd></dl>
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<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename T &gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structfsdk_1_1_result.html">Result</a>&lt;<a class="el" href="namespacefsdk.html#ab7f8be96a87fd4e85bd762a7f8f8f8fb">Error</a>&gt; <a class="el" href="classfsdk_1_1_future.html">fsdk::Future</a>&lt; T &gt;::waitFor </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classfsdk_1_1_future.html#ab792dd0d1b8eac18d3a0d875d215575f">USec</a>&#160;</td>
<td class="paramname"><em>usec</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<p>Blocks called thread until internal state changes to Fulfilled, Canceled or Failed, OR passed time is over. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">usec</td><td>Upper bound of microseconds to wait. </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="structfsdk_1_1_result.html" title="A structure that encapsulates an action result enumeration. ">Result</a> type containing </dd></dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classfsdk_1_1_future.html#a9a5efae2498601862b9514b6d58661c6" title="Alias for associated error type. ">Error</a> code. </dd></dl>
</div>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>include/fsdk/Types/<a class="el" href="_future_8h_source.html">Future.h</a></li>
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