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<div class="textblock"><code>#include &lt;<a class="el" href="impl_2codegen_2port__platform_8h_source.html">grpc/impl/codegen/port_platform.h</a>&gt;</code><br />
<code>#include &lt;stddef.h&gt;</code><br />
<code>#include &lt;<a class="el" href="gpr__slice_8h_source.html">grpc/impl/codegen/gpr_slice.h</a>&gt;</code><br />
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<p><a href="impl_2codegen_2slice_8h_source.html">Go to the source code of this file.</a></p>
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Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice__refcount__vtable.html">grpc_slice_refcount_vtable</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Slice API.  <a href="structgrpc__slice__refcount__vtable.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice__refcount.html">grpc_slice_refcount</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reference count container for <a class="el" href="structgrpc__slice.html" title="A grpc_slice s, if initialized, represents the byte range s.bytes[0..s.length-1]. ...">grpc_slice</a>.  <a href="structgrpc__slice__refcount.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice.html">grpc_slice</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">A <a class="el" href="structgrpc__slice.html" title="A grpc_slice s, if initialized, represents the byte range s.bytes[0..s.length-1]. ...">grpc_slice</a> s, if initialized, represents the byte range s.bytes[0..s.length-1].  <a href="structgrpc__slice.html#details">More...</a><br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">union &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="uniongrpc__slice_1_1grpc__slice__data.html">grpc_slice::grpc_slice_data</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice_1_1grpc__slice__data_1_1grpc__slice__refcounted.html">grpc_slice::grpc_slice_data::grpc_slice_refcounted</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice_1_1grpc__slice__data_1_1grpc__slice__inlined.html">grpc_slice::grpc_slice_data::grpc_slice_inlined</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgrpc__slice__buffer.html">grpc_slice_buffer</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Represents an expandable array of slices, to be interpreted as a single item.  <a href="structgrpc__slice__buffer.html#details">More...</a><br /></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:a6a30245ea694a3915b1413a2f50c9b54"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a6a30245ea694a3915b1413a2f50c9b54">GRPC_SLICE_INLINE_EXTRA_SIZE</a>&#160;&#160;&#160;sizeof(void*)</td></tr>
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<tr class="separator:a81db47a2be0a079aa797cd77f3864809"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8a15783c251cdeb18c3f8b0ad41d0352"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a8a15783c251cdeb18c3f8b0ad41d0352">GRPC_SLICE_START_PTR</a>(slice)</td></tr>
<tr class="separator:a8a15783c251cdeb18c3f8b0ad41d0352"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae965fb2ee1a646253cdbd49d82b0b6c5"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#ae965fb2ee1a646253cdbd49d82b0b6c5">GRPC_SLICE_LENGTH</a>(slice)</td></tr>
<tr class="separator:ae965fb2ee1a646253cdbd49d82b0b6c5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6791fa7be0a1a9144e005cfea7baea84"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a6791fa7be0a1a9144e005cfea7baea84">GRPC_SLICE_SET_LENGTH</a>(slice,  newlen)</td></tr>
<tr class="separator:a6791fa7be0a1a9144e005cfea7baea84"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a96535019e10a540192c1f276ec049a56"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a96535019e10a540192c1f276ec049a56">GRPC_SLICE_END_PTR</a>(slice)&#160;&#160;&#160;<a class="el" href="impl_2codegen_2slice_8h.html#a8a15783c251cdeb18c3f8b0ad41d0352">GRPC_SLICE_START_PTR</a>(slice) + <a class="el" href="impl_2codegen_2slice_8h.html#ae965fb2ee1a646253cdbd49d82b0b6c5">GRPC_SLICE_LENGTH</a>(slice)</td></tr>
<tr class="separator:a96535019e10a540192c1f276ec049a56"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a829178b3baec8b96a992a5607ad3ed93"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a829178b3baec8b96a992a5607ad3ed93">GRPC_SLICE_IS_EMPTY</a>(slice)&#160;&#160;&#160;(<a class="el" href="impl_2codegen_2slice_8h.html#ae965fb2ee1a646253cdbd49d82b0b6c5">GRPC_SLICE_LENGTH</a>(slice) == 0)</td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:a2a5f8eaa5d8784bfec46ac983644dca2"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgrpc__slice.html">grpc_slice</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a2a5f8eaa5d8784bfec46ac983644dca2">grpc_slice</a></td></tr>
<tr class="separator:a2a5f8eaa5d8784bfec46ac983644dca2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0ba9a84b74d6308678a2f53212b5b3fd"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgrpc__slice__refcount__vtable.html">grpc_slice_refcount_vtable</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a0ba9a84b74d6308678a2f53212b5b3fd">grpc_slice_refcount_vtable</a></td></tr>
<tr class="memdesc:a0ba9a84b74d6308678a2f53212b5b3fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Slice API.  <a href="#a0ba9a84b74d6308678a2f53212b5b3fd">More...</a><br /></td></tr>
<tr class="separator:a0ba9a84b74d6308678a2f53212b5b3fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acb7fc89ea8343fde6d0c09f1ea70dbc4"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgrpc__slice__refcount.html">grpc_slice_refcount</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#acb7fc89ea8343fde6d0c09f1ea70dbc4">grpc_slice_refcount</a></td></tr>
<tr class="memdesc:acb7fc89ea8343fde6d0c09f1ea70dbc4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reference count container for <a class="el" href="structgrpc__slice.html" title="A grpc_slice s, if initialized, represents the byte range s.bytes[0..s.length-1]. ...">grpc_slice</a>.  <a href="#acb7fc89ea8343fde6d0c09f1ea70dbc4">More...</a><br /></td></tr>
<tr class="separator:acb7fc89ea8343fde6d0c09f1ea70dbc4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a96ab1e43093bbd3fa178ae2e819863e4"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgrpc__slice__buffer.html">grpc_slice_buffer</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2slice_8h.html#a96ab1e43093bbd3fa178ae2e819863e4">grpc_slice_buffer</a></td></tr>
<tr class="memdesc:a96ab1e43093bbd3fa178ae2e819863e4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Represents an expandable array of slices, to be interpreted as a single item.  <a href="#a96ab1e43093bbd3fa178ae2e819863e4">More...</a><br /></td></tr>
<tr class="separator:a96ab1e43093bbd3fa178ae2e819863e4"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a81db47a2be0a079aa797cd77f3864809"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a81db47a2be0a079aa797cd77f3864809">&#9670;&nbsp;</a></span>GRPC_SLICE_BUFFER_INLINE_ELEMENTS</h2>

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          <td class="memname">#define GRPC_SLICE_BUFFER_INLINE_ELEMENTS&#160;&#160;&#160;8</td>
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</div><div class="memdoc">

</div>
</div>
<a id="a96535019e10a540192c1f276ec049a56"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a96535019e10a540192c1f276ec049a56">&#9670;&nbsp;</a></span>GRPC_SLICE_END_PTR</h2>

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          <td class="memname">#define GRPC_SLICE_END_PTR</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">slice</td><td>)</td>
          <td>&#160;&#160;&#160;<a class="el" href="impl_2codegen_2slice_8h.html#a8a15783c251cdeb18c3f8b0ad41d0352">GRPC_SLICE_START_PTR</a>(slice) + <a class="el" href="impl_2codegen_2slice_8h.html#ae965fb2ee1a646253cdbd49d82b0b6c5">GRPC_SLICE_LENGTH</a>(slice)</td>
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</div><div class="memdoc">

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<a id="a6a30245ea694a3915b1413a2f50c9b54"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6a30245ea694a3915b1413a2f50c9b54">&#9670;&nbsp;</a></span>GRPC_SLICE_INLINE_EXTRA_SIZE</h2>

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          <td class="memname">#define GRPC_SLICE_INLINE_EXTRA_SIZE&#160;&#160;&#160;sizeof(void*)</td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a id="ae65fc74cb3afbcd3299a1c93f90bae20"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae65fc74cb3afbcd3299a1c93f90bae20">&#9670;&nbsp;</a></span>GRPC_SLICE_INLINED_SIZE</h2>

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          <td class="memname">#define GRPC_SLICE_INLINED_SIZE&#160;&#160;&#160;(sizeof(size_t) + sizeof(uint8_t*) - 1 + <a class="el" href="impl_2codegen_2slice_8h.html#a6a30245ea694a3915b1413a2f50c9b54">GRPC_SLICE_INLINE_EXTRA_SIZE</a>)</td>
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<a id="a829178b3baec8b96a992a5607ad3ed93"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a829178b3baec8b96a992a5607ad3ed93">&#9670;&nbsp;</a></span>GRPC_SLICE_IS_EMPTY</h2>

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          <td class="memname">#define GRPC_SLICE_IS_EMPTY</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">slice</td><td>)</td>
          <td>&#160;&#160;&#160;(<a class="el" href="impl_2codegen_2slice_8h.html#ae965fb2ee1a646253cdbd49d82b0b6c5">GRPC_SLICE_LENGTH</a>(slice) == 0)</td>
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</div><div class="memdoc">

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<a id="ae965fb2ee1a646253cdbd49d82b0b6c5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae965fb2ee1a646253cdbd49d82b0b6c5">&#9670;&nbsp;</a></span>GRPC_SLICE_LENGTH</h2>

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          <td class="memname">#define GRPC_SLICE_LENGTH</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">slice</td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<b>Value:</b><div class="fragment"><div class="line">((slice).refcount ? (slice).data.refcounted.length \</div><div class="line">                    : (slice).data.inlined.length)</div></div><!-- fragment -->
</div>
</div>
<a id="a6791fa7be0a1a9144e005cfea7baea84"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6791fa7be0a1a9144e005cfea7baea84">&#9670;&nbsp;</a></span>GRPC_SLICE_SET_LENGTH</h2>

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          <td class="memname">#define GRPC_SLICE_SET_LENGTH</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">slice, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">newlen&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<b>Value:</b><div class="fragment"><div class="line">((slice).refcount ? ((slice).data.refcounted.length = (size_t)(newlen)) \</div><div class="line">                    : ((slice).data.inlined.length = (uint8_t)(newlen)))</div></div><!-- fragment -->
</div>
</div>
<a id="a8a15783c251cdeb18c3f8b0ad41d0352"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8a15783c251cdeb18c3f8b0ad41d0352">&#9670;&nbsp;</a></span>GRPC_SLICE_START_PTR</h2>

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          <td class="memname">#define GRPC_SLICE_START_PTR</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">slice</td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<b>Value:</b><div class="fragment"><div class="line">((slice).refcount ? (slice).data.refcounted.bytes \</div><div class="line">                    : (slice).data.inlined.bytes)</div></div><!-- fragment -->
</div>
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<h2 class="groupheader">Typedef Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a2a5f8eaa5d8784bfec46ac983644dca2">&#9670;&nbsp;</a></span>grpc_slice</h2>

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          <td class="memname">typedef struct <a class="el" href="structgrpc__slice.html">grpc_slice</a> <a class="el" href="structgrpc__slice.html">grpc_slice</a></td>
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          <td class="memname">typedef struct <a class="el" href="structgrpc__slice__buffer.html">grpc_slice_buffer</a>  <a class="el" href="structgrpc__slice__buffer.html">grpc_slice_buffer</a></td>
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<p>Represents an expandable array of slices, to be interpreted as a single item. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#acb7fc89ea8343fde6d0c09f1ea70dbc4">&#9670;&nbsp;</a></span>grpc_slice_refcount</h2>

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          <td class="memname">typedef struct <a class="el" href="structgrpc__slice__refcount.html">grpc_slice_refcount</a>  <a class="el" href="structgrpc__slice__refcount.html">grpc_slice_refcount</a></td>
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<p>Reference count container for <a class="el" href="structgrpc__slice.html" title="A grpc_slice s, if initialized, represents the byte range s.bytes[0..s.length-1]. ...">grpc_slice</a>. </p>
<p>Contains function pointers to increment and decrement reference counts. Implementations should cleanup when the reference count drops to zero. Typically client code should not touch this, and use grpc_slice_malloc, grpc_slice_new, or grpc_slice_new_with_len instead. </p>

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          <td class="memname">typedef struct <a class="el" href="structgrpc__slice__refcount__vtable.html">grpc_slice_refcount_vtable</a>  <a class="el" href="structgrpc__slice__refcount__vtable.html">grpc_slice_refcount_vtable</a></td>
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<p>Slice API. </p>
<p>A slice represents a contiguous reference counted array of bytes. It is cheap to take references to a slice, and it is cheap to create a slice pointing to a subset of another slice.</p>
<p>The data-structure for slices is exposed here to allow non-gpr code to build slices from whatever data they have available.</p>
<p>When defining interfaces that handle slices, care should be taken to define reference ownership semantics (who should call unref?) and mutability constraints (is the callee allowed to modify the slice?) </p>

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