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  <compounddef id="classgr_1_1buffer__double__mapped" kind="class" language="C++" prot="public">
    <compoundname>gr::buffer_double_mapped</compoundname>
    <basecompoundref refid="classgr_1_1buffer" prot="public" virt="non-virtual">gr::buffer</basecompoundref>
    <includes refid="buffer__double__mapped_8h" local="no">gnuradio/buffer_double_mapped.h</includes>
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        <briefdescription>
        </briefdescription>
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        <argsstring></argsstring>
        <name>d_logger</name>
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        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
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        </inbodydescription>
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        <type><ref refid="namespacegr_1a5f54bf3c08623ce6dea7b1cdb2eeada7" kindref="member">gr::logger_ptr</ref></type>
        <definition>gr::logger_ptr gr::buffer_double_mapped::d_debug_logger</definition>
        <argsstring></argsstring>
        <name>d_debug_logger</name>
        <qualifiedname>gr::buffer_double_mapped::d_debug_logger</qualifiedname>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="41" column="20" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="41" bodyend="-1"/>
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        <type>class</type>
        <definition>friend class buffer_reader</definition>
        <argsstring></argsstring>
        <name>buffer_reader</name>
        <qualifiedname>gr::buffer_double_mapped::buffer_reader</qualifiedname>
        <param>
          <type>buffer_reader</type>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="86" column="18" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="86" bodyend="-1"/>
        <references refid="classgr_1_1buffer__double__mapped_1acd526cda08365e46391a84fcf8cc73c1" compoundref="buffer__double__mapped_8h" startline="86">buffer_reader</references>
        <referencedby refid="classgr_1_1buffer__double__mapped_1acd526cda08365e46391a84fcf8cc73c1" compoundref="buffer__double__mapped_8h" startline="86">buffer_reader</referencedby>
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        <type><ref refid="gnuradio-runtime_2include_2gnuradio_2api_8h_1a0e21de31348d61429c7041fa776dc934" kindref="member">GR_RUNTIME_API</ref> buffer_sptr</type>
        <definition>GR_RUNTIME_API buffer_sptr make_buffer</definition>
        <argsstring>(int nitems, size_t sizeof_item, uint64_t downstream_lcm_nitems, block_sptr link, block_sptr buf_owner)</argsstring>
        <name>make_buffer</name>
        <qualifiedname>gr::buffer_double_mapped::make_buffer</qualifiedname>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <param>
          <type>size_t</type>
          <declname>sizeof_item</declname>
        </param>
        <param>
          <type>uint64_t</type>
          <declname>downstream_lcm_nitems</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>link</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>buf_owner</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="88" column="39"/>
        <references refid="gnuradio-runtime_2include_2gnuradio_2api_8h_1a0e21de31348d61429c7041fa776dc934" compoundref="gnuradio-runtime_2include_2gnuradio_2api_8h" startline="18">GR_RUNTIME_API</references>
        <references refid="classgr_1_1buffer_1aa749e1b47a6ed898cbf6b7a2fe8e04f6" compoundref="buffer_8h" startline="120" endline="120">gr::buffer::link</references>
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        <type><ref refid="gnuradio-runtime_2include_2gnuradio_2api_8h_1a0e21de31348d61429c7041fa776dc934" kindref="member">GR_RUNTIME_API</ref> buffer_sptr</type>
        <definition>GR_RUNTIME_API buffer_sptr make_buffer_double_mapped</definition>
        <argsstring>(int nitems, size_t sizeof_item, uint64_t downstream_lcm_nitems, uint32_t downstream_max_out_mult, block_sptr link, block_sptr buf_owner)</argsstring>
        <name>make_buffer_double_mapped</name>
        <qualifiedname>gr::buffer_double_mapped::make_buffer_double_mapped</qualifiedname>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <param>
          <type>size_t</type>
          <declname>sizeof_item</declname>
        </param>
        <param>
          <type>uint64_t</type>
          <declname>downstream_lcm_nitems</declname>
        </param>
        <param>
          <type>uint32_t</type>
          <declname>downstream_max_out_mult</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>link</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>buf_owner</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="94" column="5"/>
        <references refid="classgr_1_1buffer_1aa749e1b47a6ed898cbf6b7a2fe8e04f6" compoundref="buffer_8h" startline="120" endline="120">gr::buffer::link</references>
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        <type>std::unique_ptr&lt; gr::vmcircbuf &gt;</type>
        <definition>std::unique_ptr&lt;gr::vmcircbuf&gt; gr::buffer_double_mapped::d_vmcircbuf</definition>
        <argsstring></argsstring>
        <name>d_vmcircbuf</name>
        <qualifiedname>gr::buffer_double_mapped::d_vmcircbuf</qualifiedname>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="101" column="21" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="101" bodyend="-1"/>
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        <type>buffer_sptr</type>
        <definition>static buffer_sptr gr::buffer_double_mapped::make_buffer</definition>
        <argsstring>(int nitems, size_t sizeof_item, uint64_t downstream_lcm_nitems, uint32_t downstream_max_out_mult, block_sptr link=block_sptr(), block_sptr buf_owner=block_sptr())</argsstring>
        <name>make_buffer</name>
        <qualifiedname>gr::buffer_double_mapped::make_buffer</qualifiedname>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <param>
          <type>size_t</type>
          <declname>sizeof_item</declname>
        </param>
        <param>
          <type>uint64_t</type>
          <declname>downstream_lcm_nitems</declname>
        </param>
        <param>
          <type>uint32_t</type>
          <declname>downstream_max_out_mult</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>link</declname>
          <defval>block_sptr()</defval>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>buf_owner</declname>
          <defval>block_sptr()</defval>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="33" column="24"/>
        <references refid="classgr_1_1buffer_1aa749e1b47a6ed898cbf6b7a2fe8e04f6" compoundref="buffer_8h" startline="120" endline="120">gr::buffer::link</references>
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    <sectiondef kind="public-func">
      <memberdef kind="function" id="classgr_1_1buffer__double__mapped_1a72131e597dc345becf4668ed5f39a8c0" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
        <type></type>
        <definition>gr::buffer_double_mapped::~buffer_double_mapped</definition>
        <argsstring>() override</argsstring>
        <name>~buffer_double_mapped</name>
        <qualifiedname>gr::buffer_double_mapped::~buffer_double_mapped</qualifiedname>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="43" column="5"/>
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        <type>int</type>
        <definition>int gr::buffer_double_mapped::space_available</definition>
        <argsstring>() override</argsstring>
        <name>space_available</name>
        <qualifiedname>gr::buffer_double_mapped::space_available</qualifiedname>
        <reimplements refid="classgr_1_1buffer_1a9cdb079abac5822d4bdf2166d4767a10">space_available</reimplements>
        <briefdescription>
<para>return number of items worth of space available for writing </para>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="48" column="9"/>
      </memberdef>
      <memberdef kind="function" id="classgr_1_1buffer__double__mapped_1afd718f6964d316a54b53bd016364d7ae" prot="public" static="no" const="no" explicit="no" inline="yes" virt="virtual">
        <type>void</type>
        <definition>void gr::buffer_double_mapped::post_work</definition>
        <argsstring>(int nitems) override</argsstring>
        <name>post_work</name>
        <qualifiedname>gr::buffer_double_mapped::post_work</qualifiedname>
        <reimplements refid="classgr_1_1buffer_1a5ac7fb51b1e936dfc2690744c090eb8e">post_work</reimplements>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
<para>Inherited from buffer class. <parameterlist kind="param"><parameteritem>
<parameternamelist>
<parametername>nitems</parametername>
</parameternamelist>
<parameterdescription>
<para>is the number of items produced by the general_work() function. </para>
</parameterdescription>
</parameteritem>
</parameterlist>
</para>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="54" column="10" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="54" bodyend="54"/>
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        <type>bool</type>
        <definition>bool gr::buffer_double_mapped::allocate_buffer</definition>
        <argsstring>(int nitems) override</argsstring>
        <name>allocate_buffer</name>
        <qualifiedname>gr::buffer_double_mapped::allocate_buffer</qualifiedname>
        <reimplements refid="classgr_1_1buffer_1a492ba975f7fa71d03aefc7d494b7fa8c">allocate_buffer</reimplements>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
<para>sets d_vmcircbuf, d_base, d_bufsize. returns true iff successful. </para>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="61" column="10"/>
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        <type>unsigned</type>
        <definition>unsigned gr::buffer_double_mapped::index_add</definition>
        <argsstring>(unsigned a, unsigned b) override</argsstring>
        <name>index_add</name>
        <qualifiedname>gr::buffer_double_mapped::index_add</qualifiedname>
        <reimplements refid="classgr_1_1buffer_1a60fe9601f1f58f9f0a1fa36df43ea08d">index_add</reimplements>
        <param>
          <type>unsigned</type>
          <declname>a</declname>
        </param>
        <param>
          <type>unsigned</type>
          <declname>b</declname>
        </param>
        <briefdescription>
<para>Increment read or write index for this buffer. </para>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="63" column="14" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="63" bodyend="72"/>
        <references refid="classgr_1_1buffer_1a6cb33e2a667363ffec56c98ba332a975" compoundref="buffer_8h" startline="295">gr::buffer::d_bufsize</references>
      </memberdef>
      <memberdef kind="function" id="classgr_1_1buffer__double__mapped_1a168e61cf3f02c57827b0da75ab6739d4" prot="protected" static="no" const="no" explicit="no" inline="yes" virt="virtual">
        <type>unsigned</type>
        <definition>unsigned gr::buffer_double_mapped::index_sub</definition>
        <argsstring>(unsigned a, unsigned b) override</argsstring>
        <name>index_sub</name>
        <qualifiedname>gr::buffer_double_mapped::index_sub</qualifiedname>
        <reimplements refid="classgr_1_1buffer_1ae3d4f9f30adea69003007be99f11fc6c">index_sub</reimplements>
        <param>
          <type>unsigned</type>
          <declname>a</declname>
        </param>
        <param>
          <type>unsigned</type>
          <declname>b</declname>
        </param>
        <briefdescription>
<para>Decrement read or write index for this buffer. </para>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="74" column="14" bodyfile="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" bodystart="74" bodyend="83"/>
        <references refid="classgr_1_1buffer_1a6cb33e2a667363ffec56c98ba332a975" compoundref="buffer_8h" startline="295">gr::buffer::d_bufsize</references>
      </memberdef>
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        <type></type>
        <definition>gr::buffer_double_mapped::buffer_double_mapped</definition>
        <argsstring>(int nitems, size_t sizeof_item, uint64_t downstream_lcm_nitems, uint32_t downstream_max_out_mult, block_sptr link)</argsstring>
        <name>buffer_double_mapped</name>
        <qualifiedname>gr::buffer_double_mapped::buffer_double_mapped</qualifiedname>
        <param>
          <type>int</type>
          <declname>nitems</declname>
        </param>
        <param>
          <type>size_t</type>
          <declname>sizeof_item</declname>
        </param>
        <param>
          <type>uint64_t</type>
          <declname>downstream_lcm_nitems</declname>
        </param>
        <param>
          <type>uint32_t</type>
          <declname>downstream_max_out_mult</declname>
        </param>
        <param>
          <type>block_sptr</type>
          <declname>link</declname>
        </param>
        <briefdescription>
<para>constructor is private. Use gr_make_buffer to create instances. </para>
        </briefdescription>
        <detaileddescription>
<para>Allocate a buffer that holds at least <computeroutput>nitems</computeroutput> of size <computeroutput>sizeof_item</computeroutput>.</para>
<para><parameterlist kind="param"><parameteritem>
<parameternamelist>
<parametername>nitems</parametername>
</parameternamelist>
<parameterdescription>
<para>is the minimum number of items the buffer will hold. </para>
</parameterdescription>
</parameteritem>
<parameteritem>
<parameternamelist>
<parametername>sizeof_item</parametername>
</parameternamelist>
<parameterdescription>
<para>is the size of an item in bytes. </para>
</parameterdescription>
</parameteritem>
<parameteritem>
<parameternamelist>
<parametername>downstream_lcm_nitems</parametername>
</parameternamelist>
<parameterdescription>
<para>is the least common multiple of the items to read by downstream blocks </para>
</parameterdescription>
</parameteritem>
<parameteritem>
<parameternamelist>
<parametername>downstream_max_out_mult</parametername>
</parameternamelist>
<parameterdescription>
<para>is the maximum output multiple of all downstream blocks </para>
</parameterdescription>
</parameteritem>
<parameteritem>
<parameternamelist>
<parametername><ref refid="classgr_1_1buffer_1aa749e1b47a6ed898cbf6b7a2fe8e04f6" kindref="member">link</ref></parametername>
</parameternamelist>
<parameterdescription>
<para>is the block that writes to this buffer.</para>
</parameterdescription>
</parameteritem>
</parameterlist>
The total size of the buffer will be rounded up to a system dependent boundary. This is typically the system page size, but under MS windows is 64KB. </para>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="gnuradio-runtime/include/gnuradio/buffer_double_mapped.h" line="120" column="5"/>
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    <briefdescription>
<para>Single writer, multiple reader fifo. </para>
    </briefdescription>
    <detaileddescription>
    </detaileddescription>
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      <node id="2">
        <label>gr::buffer</label>
        <link refid="classgr_1_1buffer"/>
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        <childnode refid="13" relation="public-inheritance">
        </childnode>
        <childnode refid="14" relation="usage">
          <edgelabel>d_name</edgelabel>
          <edgelabel>d_symbol_alias</edgelabel>
          <edgelabel>d_symbol_name</edgelabel>
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        <childnode refid="16" relation="usage">
          <edgelabel>d_input_signature</edgelabel>
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