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<title>GNU Radio 3.2.2 C++ API: gr_align_on_samplenumbers_ss Class Reference</title>
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<h1>gr_align_on_samplenumbers_ss Class Reference</h1> </div>
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<!-- doxytag: class="gr_align_on_samplenumbers_ss" --><!-- doxytag: inherits="gr_block" -->
<p><code>#include <<a class="el" href="gr__align__on__samplenumbers__ss_8h_source.html">gr_align_on_samplenumbers_ss.h</a>></code></p>
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Inheritance diagram for gr_align_on_samplenumbers_ss:</div>
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<div class="center"><img src="classgr__align__on__samplenumbers__ss__inherit__graph.png" border="0" usemap="#gr__align__on__samplenumbers__ss_inherit__map" alt="Inheritance graph"/></div>
<map name="gr__align__on__samplenumbers__ss_inherit__map" id="gr__align__on__samplenumbers__ss_inherit__map">
<area shape="rect" id="node2" href="classgr__block.html" title="The abstract base class for all 'terminal' processing blocks.A signal processing flow is cons..." alt="" coords="75,83,144,112"/><area shape="rect" id="node4" href="classgr__basic__block.html" title="The abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an ..." alt="" coords="55,5,164,35"/></map>
<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classgr__align__on__samplenumbers__ss-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><b>align_state</b></td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__align__on__samplenumbers__ss.html#af05b1ccaa31195e895689592f9861463">~gr_align_on_samplenumbers_ss</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__align__on__samplenumbers__ss.html#af649e20f007f54c089a406839e0878ff">check_topology</a> (int ninputs, int noutputs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Confirm that ninputs and noutputs is an acceptable combination. <a href="#af649e20f007f54c089a406839e0878ff"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__align__on__samplenumbers__ss.html#a0ae31942c98cd81ab111d9f1c6d6f194">forecast</a> (int noutput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items_required)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Estimate input requirements given output request. <a href="#a0ae31942c98cd81ab111d9f1c6d6f194"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__align__on__samplenumbers__ss.html#abb17a646f937035331c48072b7ca5ee3">general_work</a> (int noutput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_const_void_star</a> &input_items, <a class="el" href="classstd_1_1vector.html">gr_vector_void_star</a> &output_items)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">compute output items from input items <a href="#abb17a646f937035331c48072b7ca5ee3"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="friends"></a>
Friends</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">gr_align_on_samplenumbers_ss_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__align__on__samplenumbers__ss.html#a02659e5c9c852964b343ada88e6a3083">gr_make_align_on_samplenumbers_ss</a> (int nchan, int align_interval)</td></tr>
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<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="af05b1ccaa31195e895689592f9861463"></a><!-- doxytag: member="gr_align_on_samplenumbers_ss::~gr_align_on_samplenumbers_ss" ref="af05b1ccaa31195e895689592f9861463" args="()" -->
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<td class="memname">gr_align_on_samplenumbers_ss::~gr_align_on_samplenumbers_ss </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="af649e20f007f54c089a406839e0878ff"></a><!-- doxytag: member="gr_align_on_samplenumbers_ss::check_topology" ref="af649e20f007f54c089a406839e0878ff" args="(int ninputs, int noutputs)" -->
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<td class="memname"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> gr_align_on_samplenumbers_ss::check_topology </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>ninputs</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>noutputs</em> </td>
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<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Confirm that ninputs and noutputs is an acceptable combination. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ninputs</td><td>number of input streams connected </td></tr>
<tr><td class="paramname">noutputs</td><td>number of output streams connected</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true if this is a valid configuration for this block.</dd></dl>
<p>This function is called by the runtime system whenever the topology changes. Most classes do not need to override this. This check is in addition to the constraints specified by the input and output gr_io_signatures. </p>
<p>Reimplemented from <a class="el" href="classgr__basic__block.html#a50a714df9c3ce8c03854a09ac84e589b">gr_basic_block</a>.</p>
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</div>
<a class="anchor" id="a0ae31942c98cd81ab111d9f1c6d6f194"></a><!-- doxytag: member="gr_align_on_samplenumbers_ss::forecast" ref="a0ae31942c98cd81ab111d9f1c6d6f194" args="(int noutput_items, gr_vector_int &ninput_items_required)" -->
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<td class="memname">void gr_align_on_samplenumbers_ss::forecast </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>noutput_items</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_int</a> & </td>
<td class="paramname"><em>ninput_items_required</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<div class="memdoc">
<p>Estimate input requirements given output request. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">noutput_items</td><td>number of output items to produce </td></tr>
<tr><td class="paramname">ninput_items_required</td><td>number of input items required on each input stream</td></tr>
</table>
</dd>
</dl>
<p>Given a request to product <code>noutput_items</code>, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close. </p>
<p>Reimplemented from <a class="el" href="classgr__block.html#aa1f2518b5c97126bb015adb9e2027f4a">gr_block</a>.</p>
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<a class="anchor" id="abb17a646f937035331c48072b7ca5ee3"></a><!-- doxytag: member="gr_align_on_samplenumbers_ss::general_work" ref="abb17a646f937035331c48072b7ca5ee3" args="(int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)" -->
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<td class="memname">int gr_align_on_samplenumbers_ss::general_work </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>noutput_items</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_int</a> & </td>
<td class="paramname"><em>ninput_items</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_const_void_star</a> & </td>
<td class="paramname"><em>input_items</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_void_star</a> & </td>
<td class="paramname"><em>output_items</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
</tr>
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<p>compute output items from input items </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">noutput_items</td><td>number of output items to write on each output stream </td></tr>
<tr><td class="paramname">ninput_items</td><td>number of input items available on each input stream </td></tr>
<tr><td class="paramname">input_items</td><td>vector of pointers to the input items, one entry per input stream </td></tr>
<tr><td class="paramname">output_items</td><td>vector of pointers to the output items, one entry per output stream</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items</dd></dl>
<p>general_work must call consume or consume_each to indicate how many items were consumed on each input stream. </p>
<p>Implements <a class="el" href="classgr__block.html#a137b93d87dc83bbdb6369d33f4ea8197">gr_block</a>.</p>
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<hr/><h2>Friends And Related Function Documentation</h2>
<a class="anchor" id="a02659e5c9c852964b343ada88e6a3083"></a><!-- doxytag: member="gr_align_on_samplenumbers_ss::gr_make_align_on_samplenumbers_ss" ref="a02659e5c9c852964b343ada88e6a3083" args="(int nchan, int align_interval)" -->
<div class="memitem">
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<td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">gr_align_on_samplenumbers_ss_sptr</a> gr_make_align_on_samplenumbers_ss </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nchan</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>align_interval</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [friend]</code></td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="gr__align__on__samplenumbers__ss_8h_source.html">gr_align_on_samplenumbers_ss.h</a></li>
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