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   1 <?xml version="1.0"?>
   2 <!--
   3 ###################################################
   4 ##Message Sink (the source port is a message)
   5 ###################################################
   6  -->
   7 <block>
   8         <name>Message Sink</name>
   9         <key>gr_message_sink</key>
  10         <import>from gnuradio import gr</import>
  11         <make>gr.message_sink($type.size*$vlen, $(id)_msgq_out, $dont_block)</make>
  12         <param>
  13                 <name>Input Type</name>
  14                 <key>type</key>
  15                 <type>enum</type>
  16                 <option>
  17                         <name>Complex</name>
  18                         <key>complex</key>
  19                         <opt>size:gr.sizeof_gr_complex</opt>
  20                 </option>
  21                 <option>
  22                         <name>Float</name>
  23                         <key>float</key>
  24                         <opt>size:gr.sizeof_float</opt>
  25                 </option>
  26                 <option>
  27                         <name>Int</name>
  28                         <key>int</key>
  29                         <opt>size:gr.sizeof_int</opt>
  30                 </option>
  31                 <option>
  32                         <name>Short</name>
  33                         <key>short</key>
  34                         <opt>size:gr.sizeof_short</opt>
  35                 </option>
  36                 <option>
  37                         <name>Byte</name>
  38                         <key>byte</key>
  39                         <opt>size:gr.sizeof_char</opt>
  40                 </option>
  41         </param>
  42         <param>
  43                 <name>Don't Block</name>
  44                 <key>dont_block</key>
  45                 <value>False</value>
  46                 <type>enum</type>
  47                 <option>
  48                         <name>Don't Block</name>
  49                         <key>True</key>
  50                 </option>
  51                 <option>
  52                         <name>Block</name>
  53                         <key>False</key>
  54                 </option>
  55         </param>
  56         <param>
  57                 <name>Vec Length</name>
  58                 <key>vlen</key>
  59                 <value>1</value>
  60                 <type>int</type>
  61         </param>
  62         <check>$vlen &gt; 0</check>
  63         <sink>
  64                 <name>in</name>
  65                 <type>$type</type>
  66                 <vlen>$vlen</vlen>
  67         </sink>
  68         <source>
  69                 <name>out</name>
  70                 <type>msg</type>
  71         </source>
  72 </block>