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<div class="textblock"><code>#include &lt;<a class="el" href="support_2sync_8h_source.html">grpc/support/sync.h</a>&gt;</code><br/>
</div>
<p><a href="avl_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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="structgpr__avl__node.html">gpr_avl_node</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">internal node of an AVL tree  <a href="structgpr__avl__node.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="structgpr__avl__vtable.html">gpr_avl_vtable</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">vtable for the AVL tree The optional user_data is propagated from the top level gpr_avl_XXX API.  <a href="structgpr__avl__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="structgpr__avl.html">gpr_avl</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">"pointer" to an AVL tree - this is a reference counted object - use gpr_avl_ref to add a reference, gpr_avl_unref when done with a reference  <a href="structgpr__avl.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a387f850dc2c55ba4e46c3f847e176ada"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgpr__avl__node.html">gpr_avl_node</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a387f850dc2c55ba4e46c3f847e176ada">gpr_avl_node</a></td></tr>
<tr class="memdesc:a387f850dc2c55ba4e46c3f847e176ada"><td class="mdescLeft">&#160;</td><td class="mdescRight">internal node of an AVL tree  <a href="#a387f850dc2c55ba4e46c3f847e176ada">More...</a><br/></td></tr>
<tr class="separator:a387f850dc2c55ba4e46c3f847e176ada"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7b4e175c2732d19931f686aeb7b4f570"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgpr__avl__vtable.html">gpr_avl_vtable</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a7b4e175c2732d19931f686aeb7b4f570">gpr_avl_vtable</a></td></tr>
<tr class="memdesc:a7b4e175c2732d19931f686aeb7b4f570"><td class="mdescLeft">&#160;</td><td class="mdescRight">vtable for the AVL tree The optional user_data is propagated from the top level gpr_avl_XXX API.  <a href="#a7b4e175c2732d19931f686aeb7b4f570">More...</a><br/></td></tr>
<tr class="separator:a7b4e175c2732d19931f686aeb7b4f570"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a31a6a15570ecac89eadb97e13e6b73bd"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a31a6a15570ecac89eadb97e13e6b73bd">gpr_avl</a></td></tr>
<tr class="memdesc:a31a6a15570ecac89eadb97e13e6b73bd"><td class="mdescLeft">&#160;</td><td class="mdescRight">"pointer" to an AVL tree - this is a reference counted object - use gpr_avl_ref to add a reference, gpr_avl_unref when done with a reference  <a href="#a31a6a15570ecac89eadb97e13e6b73bd">More...</a><br/></td></tr>
<tr class="separator:a31a6a15570ecac89eadb97e13e6b73bd"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a1dab3c1a92471b256b82ca8bd8f96d88"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a1dab3c1a92471b256b82ca8bd8f96d88">gpr_avl_create</a> (const <a class="el" href="structgpr__avl__vtable.html">gpr_avl_vtable</a> *vtable)</td></tr>
<tr class="memdesc:a1dab3c1a92471b256b82ca8bd8f96d88"><td class="mdescLeft">&#160;</td><td class="mdescRight">Create an immutable AVL tree.  <a href="#a1dab3c1a92471b256b82ca8bd8f96d88">More...</a><br/></td></tr>
<tr class="separator:a1dab3c1a92471b256b82ca8bd8f96d88"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aef295ada15917867e6e1649b99197830"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#aef295ada15917867e6e1649b99197830">gpr_avl_ref</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *user_data)</td></tr>
<tr class="memdesc:aef295ada15917867e6e1649b99197830"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add a reference to an existing tree - returns the tree as a convenience.  <a href="#aef295ada15917867e6e1649b99197830">More...</a><br/></td></tr>
<tr class="separator:aef295ada15917867e6e1649b99197830"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aeb1c9e0a533b8a25b593a806fa070f3f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#aeb1c9e0a533b8a25b593a806fa070f3f">gpr_avl_unref</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *user_data)</td></tr>
<tr class="memdesc:aeb1c9e0a533b8a25b593a806fa070f3f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Remove a reference to a tree - destroying it if there are no references left.  <a href="#aeb1c9e0a533b8a25b593a806fa070f3f">More...</a><br/></td></tr>
<tr class="separator:aeb1c9e0a533b8a25b593a806fa070f3f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a22f47f7f803e1c2e48df0fa8ce40eb47"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a22f47f7f803e1c2e48df0fa8ce40eb47">gpr_avl_add</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *key, void *value, void *user_data)</td></tr>
<tr class="memdesc:a22f47f7f803e1c2e48df0fa8ce40eb47"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a new tree with (key, value) added to avl.  <a href="#a22f47f7f803e1c2e48df0fa8ce40eb47">More...</a><br/></td></tr>
<tr class="separator:a22f47f7f803e1c2e48df0fa8ce40eb47"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af809cc603919889ef2f5da7bb46f9f1b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#af809cc603919889ef2f5da7bb46f9f1b">gpr_avl_remove</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *key, void *user_data)</td></tr>
<tr class="memdesc:af809cc603919889ef2f5da7bb46f9f1b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a new tree with key deleted implicitly unrefs avl to allow easy chaining.  <a href="#af809cc603919889ef2f5da7bb46f9f1b">More...</a><br/></td></tr>
<tr class="separator:af809cc603919889ef2f5da7bb46f9f1b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ade8a64f68706a8539f14f863cb18d52b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#ade8a64f68706a8539f14f863cb18d52b">gpr_avl_get</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *key, void *user_data)</td></tr>
<tr class="memdesc:ade8a64f68706a8539f14f863cb18d52b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Lookup key, and return the associated value.  <a href="#ade8a64f68706a8539f14f863cb18d52b">More...</a><br/></td></tr>
<tr class="separator:ade8a64f68706a8539f14f863cb18d52b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a25526da4bdaa6a799e36aa7c2e3e67fd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a25526da4bdaa6a799e36aa7c2e3e67fd">gpr_avl_maybe_get</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl, void *key, void **value, void *user_data)</td></tr>
<tr class="memdesc:a25526da4bdaa6a799e36aa7c2e3e67fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 if avl contains key, 0 otherwise; if it has the key, sets *value to its value.  <a href="#a25526da4bdaa6a799e36aa7c2e3e67fd">More...</a><br/></td></tr>
<tr class="separator:a25526da4bdaa6a799e36aa7c2e3e67fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a67437810e910a0b5eaf783d1e59f6299"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="avl_8h.html#a67437810e910a0b5eaf783d1e59f6299">gpr_avl_is_empty</a> (<a class="el" href="structgpr__avl.html">gpr_avl</a> avl)</td></tr>
<tr class="memdesc:a67437810e910a0b5eaf783d1e59f6299"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return 1 if avl is empty, 0 otherwise.  <a href="#a67437810e910a0b5eaf783d1e59f6299">More...</a><br/></td></tr>
<tr class="separator:a67437810e910a0b5eaf783d1e59f6299"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Typedef Documentation</h2>
<a class="anchor" id="a31a6a15570ecac89eadb97e13e6b73bd"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">typedef struct <a class="el" href="structgpr__avl.html">gpr_avl</a>  <a class="el" href="structgpr__avl.html">gpr_avl</a></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>"pointer" to an AVL tree - this is a reference counted object - use gpr_avl_ref to add a reference, gpr_avl_unref when done with a reference </p>

</div>
</div>
<a class="anchor" id="a387f850dc2c55ba4e46c3f847e176ada"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">typedef struct <a class="el" href="structgpr__avl__node.html">gpr_avl_node</a>  <a class="el" href="structgpr__avl__node.html">gpr_avl_node</a></td>
        </tr>
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</div><div class="memdoc">

<p>internal node of an AVL tree </p>

</div>
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<a class="anchor" id="a7b4e175c2732d19931f686aeb7b4f570"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">typedef struct <a class="el" href="structgpr__avl__vtable.html">gpr_avl_vtable</a>  <a class="el" href="structgpr__avl__vtable.html">gpr_avl_vtable</a></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>vtable for the AVL tree The optional user_data is propagated from the top level gpr_avl_XXX API. </p>
<p>From the same API call, multiple vtable functions may be called multiple times. </p>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a22f47f7f803e1c2e48df0fa8ce40eb47"></a>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a> gpr_avl_add </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>key</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>value</em>, </td>
        </tr>
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          <td class="paramkey"></td>
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          <td class="paramtype">void *&#160;</td>
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<p>Return a new tree with (key, value) added to avl. </p>
<p>implicitly unrefs avl to allow easy chaining. if key exists in avl, the new tree's key entry updated (i.e. a duplicate is not created). The optional user_data will be passed to vtable functions. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a> gpr_avl_create </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="structgpr__avl__vtable.html">gpr_avl_vtable</a> *&#160;</td>
          <td class="paramname"><em>vtable</em></td><td>)</td>
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<p>Create an immutable AVL tree. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void* gpr_avl_get </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
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<p>Lookup key, and return the associated value. </p>
<p>Does not mutate avl. Returns NULL if key is not found. The optional user_data will be passed to vtable functions. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int gpr_avl_is_empty </td>
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          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
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<p>Return 1 if avl is empty, 0 otherwise. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> int gpr_avl_maybe_get </td>
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          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
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          <td class="paramtype">void *&#160;</td>
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          <td class="paramtype">void **&#160;</td>
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          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>user_data</em>&#160;</td>
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<p>Return 1 if avl contains key, 0 otherwise; if it has the key, sets *value to its value. </p>
<p>THe optional user_data will be passed to vtable functions. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a> gpr_avl_ref </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
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          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>user_data</em>&#160;</td>
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<p>Add a reference to an existing tree - returns the tree as a convenience. </p>
<p>The optional user_data will be passed to vtable functions. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> <a class="el" href="structgpr__avl.html">gpr_avl</a> gpr_avl_remove </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
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          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>key</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>user_data</em>&#160;</td>
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          <td></td>
          <td>)</td>
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<p>Return a new tree with key deleted implicitly unrefs avl to allow easy chaining. </p>
<p>The optional user_data will be passed to vtable functions. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_avl_unref </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structgpr__avl.html">gpr_avl</a>&#160;</td>
          <td class="paramname"><em>avl</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>user_data</em>&#160;</td>
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<p>Remove a reference to a tree - destroying it if there are no references left. </p>
<p>The optional user_data will be passed to vtable functions. </p>

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