subrepo: subdir: "deps/nats.c" merged: "5d057f6" upstream: origin: "https://github.com/nats-io/nats.c.git" branch: "v3.7.0" commit: "5d057f6" git-subrepo: version: "0.4.6" commit: "affc4c01a"
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 <span id="projectnumber">3.7.0</span>
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<div id="projectbrief">The nats.io C Client, Supported by Synadia Communications Inc.</div>
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle"><div class="title">Libevent Adapter</div></div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga195d269473332931fd0fede0bac3309e" id="r_ga195d269473332931fd0fede0bac3309e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libevent_functions.html#ga195d269473332931fd0fede0bac3309e">natsLibevent_Init</a> (void)</td></tr>
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<tr class="memdesc:ga195d269473332931fd0fede0bac3309e"><td class="mdescLeft"> </td><td class="mdescRight">Initialize the adapter. <br /></td></tr>
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<tr class="separator:ga195d269473332931fd0fede0bac3309e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga30c00f21a5251ee9fde09c1f2b429cd2" id="r_ga30c00f21a5251ee9fde09c1f2b429cd2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libevent_functions.html#ga30c00f21a5251ee9fde09c1f2b429cd2">natsLibevent_Attach</a> (void **userData, void *loop, <a class="el" href="group__types_group.html#gaf88dca0a18efb5c5e994d265a9f04aec">natsConnection</a> *nc, <a class="el" href="nats_8h.html#af798865ac824e5959987de0fe8d07383">natsSock</a> socket)</td></tr>
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<tr class="memdesc:ga30c00f21a5251ee9fde09c1f2b429cd2"><td class="mdescLeft"> </td><td class="mdescRight">Attach a connection to the given event loop. <br /></td></tr>
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<tr class="separator:ga30c00f21a5251ee9fde09c1f2b429cd2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga8a14ce23b4f6ba3bf63369961f9a5552" id="r_ga8a14ce23b4f6ba3bf63369961f9a5552"><td class="memItemLeft" align="right" valign="top"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libevent_functions.html#ga8a14ce23b4f6ba3bf63369961f9a5552">natsLibevent_Read</a> (void *userData, bool add)</td></tr>
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<tr class="memdesc:ga8a14ce23b4f6ba3bf63369961f9a5552"><td class="mdescLeft"> </td><td class="mdescRight">Start or stop polling on READ events. <br /></td></tr>
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<tr class="separator:ga8a14ce23b4f6ba3bf63369961f9a5552"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7ac99f326a59e5663ff66f5023c87091" id="r_ga7ac99f326a59e5663ff66f5023c87091"><td class="memItemLeft" align="right" valign="top"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libevent_functions.html#ga7ac99f326a59e5663ff66f5023c87091">natsLibevent_Write</a> (void *userData, bool add)</td></tr>
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<tr class="memdesc:ga7ac99f326a59e5663ff66f5023c87091"><td class="mdescLeft"> </td><td class="mdescRight">Start or stop polling on WRITE events. <br /></td></tr>
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<tr class="separator:ga7ac99f326a59e5663ff66f5023c87091"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaac76f5937329a8650f69c6bd8af36cd5" id="r_gaac76f5937329a8650f69c6bd8af36cd5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__libevent_functions.html#gaac76f5937329a8650f69c6bd8af36cd5">natsLibevent_Detach</a> (void *userData)</td></tr>
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<tr class="memdesc:gaac76f5937329a8650f69c6bd8af36cd5"><td class="mdescLeft"> </td><td class="mdescRight">The connection is closed, it can be safely detached. <br /></td></tr>
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<tr class="separator:gaac76f5937329a8650f69c6bd8af36cd5"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p>Adapter to plug a <code>NATS</code> connection to a <code>libevent</code> event loop. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="ga195d269473332931fd0fede0bac3309e" name="ga195d269473332931fd0fede0bac3309e"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga195d269473332931fd0fede0bac3309e">◆ </a></span>natsLibevent_Init()</h2>
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<td class="memname">void natsLibevent_Init </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<p>Needs to be called once so that the adapter can initialize some state. </p>
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<a id="ga30c00f21a5251ee9fde09c1f2b429cd2" name="ga30c00f21a5251ee9fde09c1f2b429cd2"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga30c00f21a5251ee9fde09c1f2b429cd2">◆ </a></span>natsLibevent_Attach()</h2>
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<td class="memname"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> natsLibevent_Attach </td>
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<td>(</td>
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<td class="paramtype">void ** </td>
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<td class="paramname"><em>userData</em>, </td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>loop</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="group__types_group.html#gaf88dca0a18efb5c5e994d265a9f04aec">natsConnection</a> * </td>
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<td class="paramname"><em>nc</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="nats_8h.html#af798865ac824e5959987de0fe8d07383">natsSock</a> </td>
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<td class="paramname"><em>socket</em> </td>
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<td></td>
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<td>)</td>
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<p>This callback is invoked after <code>NATS</code> library has connected, or reconnected. For a reconnect event, <code>*userData</code> will not be <code>NULL</code>. This function will start polling on READ events for the given <code>socket</code>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">userData</td><td>the location where the adapter stores the user object passed to the other callbacks. </td></tr>
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<tr><td class="paramname">loop</td><td>the event loop as a generic pointer. Cast to appropriate type. </td></tr>
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<tr><td class="paramname">nc</td><td>the connection to attach to the event loop </td></tr>
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<tr><td class="paramname">socket</td><td>the socket to start polling on. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ga8a14ce23b4f6ba3bf63369961f9a5552">◆ </a></span>natsLibevent_Read()</h2>
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<td class="memname"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> natsLibevent_Read </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>userData</em>, </td>
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<td class="paramname"><em>add</em> </td>
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<p>This callback is invoked to notify that the event library should start or stop polling for READ events.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">userData</td><td>the user object created in <a class="el" href="group__libevent_functions.html#ga30c00f21a5251ee9fde09c1f2b429cd2" title="Attach a connection to the given event loop.">natsLibevent_Attach</a> </td></tr>
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<tr><td class="paramname">add</td><td><code>true</code> if the library needs to start polling, <code>false</code> otherwise. </td></tr>
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<a id="ga7ac99f326a59e5663ff66f5023c87091" name="ga7ac99f326a59e5663ff66f5023c87091"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7ac99f326a59e5663ff66f5023c87091">◆ </a></span>natsLibevent_Write()</h2>
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<td class="memname"><a class="el" href="status_8h.html#a36c934157b663b7b5fb5d6609c897c80">natsStatus</a> natsLibevent_Write </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>userData</em>, </td>
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<td>)</td>
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<p>This callback is invoked to notify that the event library should start or stop polling for WRITE events.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">userData</td><td>the user object created in <a class="el" href="group__libevent_functions.html#ga30c00f21a5251ee9fde09c1f2b429cd2" title="Attach a connection to the given event loop.">natsLibevent_Attach</a> </td></tr>
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<tr><td class="paramname">add</td><td><code>true</code> if the library needs to start polling, <code>false</code> otherwise. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#gaac76f5937329a8650f69c6bd8af36cd5">◆ </a></span>natsLibevent_Detach()</h2>
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<td>(</td>
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<p>When a connection is closed (not disconnected, pending a reconnect), this callback will be invoked. This is the opportunity to cleanup the state maintained by the adapter for this connection.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">userData</td><td>the user object created in <a class="el" href="group__libevent_functions.html#ga30c00f21a5251ee9fde09c1f2b429cd2" title="Attach a connection to the given event loop.">natsLibevent_Attach</a> </td></tr>
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<li class="footer">NATS.IO Supported By Synadia Communications Inc.
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