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<div class="textblock"><code>#include &quot;<a class="el" href="subchannel_8h_source.html">src/core/client_config/subchannel.h</a>&quot;</code><br/>
<code>#include &lt;<a class="el" href="string_8h_source.html">string.h</a>&gt;</code><br/>
<code>#include &lt;<a class="el" href="alloc_8h_source.html">grpc/support/alloc.h</a>&gt;</code><br/>
<code>#include &quot;<a class="el" href="channel__args_8h_source.html">src/core/channel/channel_args.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="client__channel_8h_source.html">src/core/channel/client_channel.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="connected__channel_8h_source.html">src/core/channel/connected_channel.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="alarm_8h_source.html">src/core/iomgr/alarm.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="connectivity__state_8h_source.html">src/core/transport/connectivity_state.h</a>&quot;</code><br/>
<code>#include &quot;<a class="el" href="channel_8h_source.html">src/core/surface/channel.h</a>&quot;</code><br/>
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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="structconnection.html">connection</a></td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:a5c5a0a02a82c51b4df27922770a17516"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structwaiting__for__connect.html">waiting_for_connect</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a5c5a0a02a82c51b4df27922770a17516">waiting_for_connect</a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a5c7cfbbc599fe46465b5f0c9952af323"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a5c7cfbbc599fe46465b5f0c9952af323">grpc_subchannel_ref</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c <a class="el" href="subchannel_8h.html#aabb025f64b5de653dc110d17add28e74">GRPC_SUBCHANNEL_REF_EXTRA_ARGS</a>)</td></tr>
<tr class="separator:a5c7cfbbc599fe46465b5f0c9952af323"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0afd3a137c42f46e285b7c7d0b7b657f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a0afd3a137c42f46e285b7c7d0b7b657f">grpc_subchannel_unref</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c <a class="el" href="subchannel_8h.html#aabb025f64b5de653dc110d17add28e74">GRPC_SUBCHANNEL_REF_EXTRA_ARGS</a>)</td></tr>
<tr class="separator:a0afd3a137c42f46e285b7c7d0b7b657f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad64aa215ea81487204c6598b4f1572ae"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#ad64aa215ea81487204c6598b4f1572ae">grpc_subchannel_add_interested_party</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c, <a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *pollset)</td></tr>
<tr class="separator:ad64aa215ea81487204c6598b4f1572ae"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a72bfe59d8ad11465896034281729279b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a72bfe59d8ad11465896034281729279b">grpc_subchannel_del_interested_party</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c, <a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *pollset)</td></tr>
<tr class="separator:a72bfe59d8ad11465896034281729279b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5220a721bb5ad91bffbddd12045efff8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a5220a721bb5ad91bffbddd12045efff8">grpc_subchannel_create</a> (<a class="el" href="structgrpc__connector.html">grpc_connector</a> *<a class="el" href="structconnector.html">connector</a>, <a class="el" href="structgrpc__subchannel__args.html">grpc_subchannel_args</a> *args)</td></tr>
<tr class="memdesc:a5220a721bb5ad91bffbddd12045efff8"><td class="mdescLeft">&#160;</td><td class="mdescRight">create a subchannel given a connector <a href="#a5220a721bb5ad91bffbddd12045efff8">More...</a><br/></td></tr>
<tr class="separator:a5220a721bb5ad91bffbddd12045efff8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa6b5c676351c4f7f33b903549edab3b7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#aa6b5c676351c4f7f33b903549edab3b7">grpc_subchannel_create_call</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c, <a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *pollset, <a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> **target, <a class="el" href="structgrpc__iomgr__closure.html">grpc_iomgr_closure</a> *notify)</td></tr>
<tr class="memdesc:aa6b5c676351c4f7f33b903549edab3b7"><td class="mdescLeft">&#160;</td><td class="mdescRight">construct a call (possibly asynchronously) <a href="#aa6b5c676351c4f7f33b903549edab3b7">More...</a><br/></td></tr>
<tr class="separator:aa6b5c676351c4f7f33b903549edab3b7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a92711f9b7c8df9415249685a9c91f2c9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="grpc_8h.html#a065b65f5cdd062a67d82e2b6bcf68cf2">grpc_connectivity_state</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a92711f9b7c8df9415249685a9c91f2c9">grpc_subchannel_check_connectivity</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c)</td></tr>
<tr class="memdesc:a92711f9b7c8df9415249685a9c91f2c9"><td class="mdescLeft">&#160;</td><td class="mdescRight">poll the current connectivity state of a channel <a href="#a92711f9b7c8df9415249685a9c91f2c9">More...</a><br/></td></tr>
<tr class="separator:a92711f9b7c8df9415249685a9c91f2c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac2e59a5c3a44ba0827b27ccba866389b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#ac2e59a5c3a44ba0827b27ccba866389b">grpc_subchannel_notify_on_state_change</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c, <a class="el" href="grpc_8h.html#a065b65f5cdd062a67d82e2b6bcf68cf2">grpc_connectivity_state</a> *state, <a class="el" href="structgrpc__iomgr__closure.html">grpc_iomgr_closure</a> *notify)</td></tr>
<tr class="memdesc:ac2e59a5c3a44ba0827b27ccba866389b"><td class="mdescLeft">&#160;</td><td class="mdescRight">call notify when the connectivity state of a channel changes from *state. <a href="#ac2e59a5c3a44ba0827b27ccba866389b">More...</a><br/></td></tr>
<tr class="separator:ac2e59a5c3a44ba0827b27ccba866389b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9b95251da4779ae913c33f380a1c33c4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a9b95251da4779ae913c33f380a1c33c4">grpc_subchannel_process_transport_op</a> (<a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c, <a class="el" href="structgrpc__transport__op.html">grpc_transport_op</a> *op)</td></tr>
<tr class="memdesc:a9b95251da4779ae913c33f380a1c33c4"><td class="mdescLeft">&#160;</td><td class="mdescRight">process a transport level op <a href="#a9b95251da4779ae913c33f380a1c33c4">More...</a><br/></td></tr>
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<tr class="memitem:abb8369d0ae5d3be4e25e9c300ef50067"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#abb8369d0ae5d3be4e25e9c300ef50067">grpc_subchannel_call_ref</a> (<a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *c <a class="el" href="subchannel_8h.html#aabb025f64b5de653dc110d17add28e74">GRPC_SUBCHANNEL_REF_EXTRA_ARGS</a>)</td></tr>
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<tr class="memitem:a179d2915801ed037ca90a4de0f7ce060"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a179d2915801ed037ca90a4de0f7ce060">grpc_subchannel_call_unref</a> (<a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *c <a class="el" href="subchannel_8h.html#aabb025f64b5de653dc110d17add28e74">GRPC_SUBCHANNEL_REF_EXTRA_ARGS</a>)</td></tr>
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<tr class="memitem:a552e894b75a9a67f00e4ae312a94cc00"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a552e894b75a9a67f00e4ae312a94cc00">grpc_subchannel_call_get_peer</a> (<a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *call)</td></tr>
<tr class="memdesc:a552e894b75a9a67f00e4ae312a94cc00"><td class="mdescLeft">&#160;</td><td class="mdescRight">continue querying for peer <a href="#a552e894b75a9a67f00e4ae312a94cc00">More...</a><br/></td></tr>
<tr class="separator:a552e894b75a9a67f00e4ae312a94cc00"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0128c4e7cd5939061ea02780e5fa33ae"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="subchannel_8c.html#a0128c4e7cd5939061ea02780e5fa33ae">grpc_subchannel_call_process_op</a> (<a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *call, <a class="el" href="structgrpc__transport__stream__op.html">grpc_transport_stream_op</a> *op)</td></tr>
<tr class="memdesc:a0128c4e7cd5939061ea02780e5fa33ae"><td class="mdescLeft">&#160;</td><td class="mdescRight">continue processing a transport op <a href="#a0128c4e7cd5939061ea02780e5fa33ae">More...</a><br/></td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define CHANNEL_STACK_FROM_CONNECTION</td>
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<td class="paramtype">&#160;</td>
<td class="paramname">con</td><td>)</td>
<td>&#160;&#160;&#160;((<a class="el" href="structgrpc__channel__stack.html">grpc_channel_stack</a> *)((con) + 1))</td>
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<td class="memname">#define CONNECTION_REF_LOCKED</td>
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<td></td><td>&#160;&#160;&#160;connection_ref_locked((p))</td>
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<td class="memname">#define CONNECTION_UNREF_LOCKED</td>
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<td></td><td>&#160;&#160;&#160;connection_unref_locked((p))</td>
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<td class="memname">#define GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS&#160;&#160;&#160;1</td>
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<td class="memname">#define GRPC_SUBCHANNEL_MIN_CONNECT_TIMEOUT_SECONDS&#160;&#160;&#160;20</td>
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<td class="memname">#define GRPC_SUBCHANNEL_RECONNECT_BACKOFF_MULTIPLIER&#160;&#160;&#160;1.6</td>
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<td class="memname">#define GRPC_SUBCHANNEL_RECONNECT_JITTER&#160;&#160;&#160;0.2</td>
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<td class="memname">#define GRPC_SUBCHANNEL_RECONNECT_MAX_BACKOFF_SECONDS&#160;&#160;&#160;120</td>
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<td class="memname">#define REF_LOG</td>
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<td class="paramname">p&#160;</td>
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<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { \</div>
<div class="line"> } <span class="keywordflow">while</span> (0)</div>
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<td class="memname">#define REF_PASS_ARGS</td>
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<td class="memname">#define SUBCHANNEL_CALL_TO_CALL_STACK</td>
<td>(</td>
<td class="paramtype">&#160;</td>
<td class="paramname">call</td><td>)</td>
<td>&#160;&#160;&#160;((<a class="el" href="structgrpc__call__stack.html">grpc_call_stack</a> *)((call) + 1))</td>
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<td class="memname">#define SUBCHANNEL_REF_LOCKED</td>
<td>(</td>
<td class="paramtype">&#160;</td>
<td class="paramname">p, </td>
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<td class="paramtype">&#160;</td>
<td class="paramname">r&#160;</td>
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<td>)</td>
<td></td><td>&#160;&#160;&#160;subchannel_ref_locked((p))</td>
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<td class="memname">#define SUBCHANNEL_UNREF_LOCKED</td>
<td>(</td>
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<td class="paramname">r&#160;</td>
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<td>)</td>
<td></td><td>&#160;&#160;&#160;subchannel_unref_locked((p))</td>
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<td class="memname">#define UNREF_LOG</td>
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<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { \</div>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef struct <a class="el" href="structwaiting__for__connect.html">waiting_for_connect</a> <a class="el" href="structwaiting__for__connect.html">waiting_for_connect</a></td>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void grpc_subchannel_add_interested_party </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>c</em>, </td>
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<td class="paramtype"><a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *&#160;</td>
<td class="paramname"><em>pollset</em>&#160;</td>
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<td>)</td>
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<td class="memname">char* grpc_subchannel_call_get_peer </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *&#160;</td>
<td class="paramname"><em>call</em></td><td>)</td>
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<p>continue querying for peer </p>
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<td class="memname">void grpc_subchannel_call_process_op </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *&#160;</td>
<td class="paramname"><em>call</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="structgrpc__transport__stream__op.html">grpc_transport_stream_op</a> *&#160;</td>
<td class="paramname"><em>op</em>&#160;</td>
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<p>continue processing a transport op </p>
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<td class="memname">void grpc_subchannel_call_ref </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *c&#160;</td>
<td class="paramname"><em>GRPC_SUBCHANNEL_REF_EXTRA_ARGS</em></td><td>)</td>
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<td class="memname">void grpc_subchannel_call_unref </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> *c&#160;</td>
<td class="paramname"><em>GRPC_SUBCHANNEL_REF_EXTRA_ARGS</em></td><td>)</td>
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<td class="memname"><a class="el" href="grpc_8h.html#a065b65f5cdd062a67d82e2b6bcf68cf2">grpc_connectivity_state</a> grpc_subchannel_check_connectivity </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>c</em></td><td>)</td>
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<p>poll the current connectivity state of a channel </p>
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<td class="memname"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a>* grpc_subchannel_create </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__connector.html">grpc_connector</a> *&#160;</td>
<td class="paramname"><em>connector</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__args.html">grpc_subchannel_args</a> *&#160;</td>
<td class="paramname"><em>args</em>&#160;</td>
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<p>create a subchannel given a connector </p>
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<td class="memname">void grpc_subchannel_create_call </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>c</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *&#160;</td>
<td class="paramname"><em>pollset</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel__call.html">grpc_subchannel_call</a> **&#160;</td>
<td class="paramname"><em>target</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__iomgr__closure.html">grpc_iomgr_closure</a> *&#160;</td>
<td class="paramname"><em>notify</em>&#160;</td>
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<td>)</td>
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<p>construct a call (possibly asynchronously) </p>
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<td class="memname">void grpc_subchannel_del_interested_party </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>c</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__pollset.html">grpc_pollset</a> *&#160;</td>
<td class="paramname"><em>pollset</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<td class="memname">void grpc_subchannel_notify_on_state_change </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>channel</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="grpc_8h.html#a065b65f5cdd062a67d82e2b6bcf68cf2">grpc_connectivity_state</a> *&#160;</td>
<td class="paramname"><em>state</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__iomgr__closure.html">grpc_iomgr_closure</a> *&#160;</td>
<td class="paramname"><em>notify</em>&#160;</td>
</tr>
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<td>)</td>
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<p>call notify when the connectivity state of a channel changes from *state. </p>
<p>Updates *state with the new state of the channel </p>
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<td class="memname">void grpc_subchannel_process_transport_op </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *&#160;</td>
<td class="paramname"><em>c</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structgrpc__transport__op.html">grpc_transport_op</a> *&#160;</td>
<td class="paramname"><em>op</em>&#160;</td>
</tr>
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<td>)</td>
<td></td><td></td>
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<p>process a transport level op </p>
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<td class="memname">void grpc_subchannel_ref </td>
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<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c&#160;</td>
<td class="paramname"><em>GRPC_SUBCHANNEL_REF_EXTRA_ARGS</em></td><td>)</td>
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<td class="memname">void grpc_subchannel_unref </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structgrpc__subchannel.html">grpc_subchannel</a> *c&#160;</td>
<td class="paramname"><em>GRPC_SUBCHANNEL_REF_EXTRA_ARGS</em></td><td>)</td>
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