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<div class="navpath"><a class="el" href="namespaceTelEngine.html">TelEngine</a>::<a class="el" href="classTelEngine_1_1SS7Layer2.html">SS7Layer2</a>
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<h1>SS7Layer2 Class Reference</h1><!-- doxytag: class="TelEngine::SS7Layer2" --><!-- doxytag: inherits="TelEngine::SignallingComponent" -->Abstract SS7 layer 2 (data link) message transfer part.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="yatesig_8h-source.html">yatesig.h</a>></code>
<p>
<div class="dynheader">
Inheritance diagram for SS7Layer2:</div>
<div class="dynsection">
<p><center><img src="classTelEngine_1_1SS7Layer2.png" usemap="#SS7Layer2_map" border="0" alt=""></center>
<map name="SS7Layer2_map">
<area href="classTelEngine_1_1SignallingComponent.html" alt="SignallingComponent" shape="rect" coords="140,56,270,80">
<area href="classTelEngine_1_1GenObject.html" alt="GenObject" shape="rect" coords="70,0,200,24">
<area href="classTelEngine_1_1DebugEnabler.html" alt="DebugEnabler" shape="rect" coords="210,0,340,24">
<area href="classTelEngine_1_1SS7M2PA.html" alt="SS7M2PA" shape="rect" coords="0,168,130,192">
<area href="classTelEngine_1_1SS7M2UA.html" alt="SS7M2UA" shape="rect" coords="140,168,270,192">
<area href="classTelEngine_1_1SS7MTP2.html" alt="SS7MTP2" shape="rect" coords="280,168,410,192">
</map>
</div>
<p>
<a href="classTelEngine_1_1SS7Layer2-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#a60f669816b146d6373c62d9625e52ad">LinkStatus</a> { <br>
<b>OutOfAlignment</b> = 0,
<b>NormalAlignment</b> = 1,
<b>EmergencyAlignment</b> = 2,
<b>OutOfService</b> = 3,
<br>
<b>ProcessorOutage</b> = 4,
<b>Busy</b> = 5,
<b>O</b> = OutOfAlignment,
<b>N</b> = NormalAlignment,
<br>
<b>E</b> = EmergencyAlignment,
<b>OS</b> = OutOfService,
<b>PO</b> = ProcessorOutage,
<b>B</b> = Busy
<br>
}</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#a8f137f19095e0bdcf4f521e901f88bb">Operation</a> { <b>Pause</b> = 0x100,
<b>Resume</b> = 0x200,
<b>Align</b> = 0x300,
<b>Status</b> = 0x400
}</td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#4f0c219925986daf6cb15d727a1bef9a">transmitMSU</a> (const <a class="el" href="classTelEngine_1_1SS7MSU.html">SS7MSU</a> &msu)=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classTelEngine_1_1ObjList.html">ObjList</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#0645d950faabfad06fa0ab8c56f3a7e3">recoverMSU</a> ()=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#59186288b9d2caffa27a86f0b7f5af60">status</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#1ae6b2425baaad8a031fadf5d03555a9">statusName</a> (unsigned int status, bool brief) const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#0dc0514c3067fd19b911a18d9e226f91">statusName</a> (bool brief=false) const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#8c7a6bd82fdacbdf35b3ae6718e84d71">operational</a> () const =0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#d0e286a8e2b7422787595df241d5776a">attach</a> (<a class="el" href="classTelEngine_1_1SS7L2User.html">SS7L2User</a> *l2user)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classTelEngine_1_1SS7L2User.html">SS7L2User</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#36cbffd7c8c86883f041f9fcf86525a2">user</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#df8afa35ee8b6e974433e3127ef0d8f9">sls</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#bd3c3e1681ea40d38639c5d867971995">sls</a> (int linkSel)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#50ca140491051ae0a8c3972721cea735">control</a> (<a class="el" href="classTelEngine_1_1SS7Layer2.html#a8f137f19095e0bdcf4f521e901f88bb">Operation</a> oper, <a class="el" href="classTelEngine_1_1NamedList.html">NamedList</a> *params=0)</td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#328826a12cc60b9708950e3513e87fe9">SS7Layer2</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#dc0e3dcfa34a274f6fc661bb58a55711">receivedMSU</a> (const <a class="el" href="classTelEngine_1_1SS7MSU.html">SS7MSU</a> &msu)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classTelEngine_1_1SS7Layer2.html#7ff19734eb024bd6f3e2ad95647b1b27">notify</a> ()</td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Abstract SS7 layer 2 (data link) message transfer part.
<p>
An interface to a Layer 2 (data link) SS7 message transfer part <hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="a60f669816b146d6373c62d9625e52ad"></a><!-- doxytag: member="TelEngine::SS7Layer2::LinkStatus" ref="a60f669816b146d6373c62d9625e52ad" args="" -->
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<td class="memname">enum <a class="el" href="classTelEngine_1_1SS7Layer2.html#a60f669816b146d6373c62d9625e52ad">LinkStatus</a> </td>
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<p>
LSSU Status Indications
</div>
</div><p>
<a class="anchor" name="a8f137f19095e0bdcf4f521e901f88bb"></a><!-- doxytag: member="TelEngine::SS7Layer2::Operation" ref="a8f137f19095e0bdcf4f521e901f88bb" args="" -->
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<td class="memname">enum <a class="el" href="classTelEngine_1_1SS7Layer2.html#a8f137f19095e0bdcf4f521e901f88bb">Operation</a> </td>
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<p>
Control primitives
</div>
</div><p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="328826a12cc60b9708950e3513e87fe9"></a><!-- doxytag: member="TelEngine::SS7Layer2::SS7Layer2" ref="328826a12cc60b9708950e3513e87fe9" args="()" -->
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<td class="memname"><a class="el" href="classTelEngine_1_1SS7Layer2.html">SS7Layer2</a> </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline, protected]</code></td>
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<p>
Constructor
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="d0e286a8e2b7422787595df241d5776a"></a><!-- doxytag: member="TelEngine::SS7Layer2::attach" ref="d0e286a8e2b7422787595df241d5776a" args="(SS7L2User *l2user)" -->
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<td class="memname">void attach </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classTelEngine_1_1SS7L2User.html">SS7L2User</a> * </td>
<td class="paramname"> <em>l2user</em> </td>
<td> ) </td>
<td></td>
</tr>
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<p>
Attach a Layer 2 user component to the data link. Detach from the old one if valid <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>l2user</em> </td><td>Pointer to Layer 2 user component to attach </td></tr>
</table>
</dl>
<p>Referenced by <a class="el" href="yatesig_8h-source.html#l04294">SS7MTP2::destruct()</a>.</p>
</div>
</div><p>
<a class="anchor" name="50ca140491051ae0a8c3972721cea735"></a><!-- doxytag: member="TelEngine::SS7Layer2::control" ref="50ca140491051ae0a8c3972721cea735" args="(Operation oper, NamedList *params=0)" -->
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<td class="memname">virtual bool control </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classTelEngine_1_1SS7Layer2.html#a8f137f19095e0bdcf4f521e901f88bb">Operation</a> </td>
<td class="paramname"> <em>oper</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classTelEngine_1_1NamedList.html">NamedList</a> * </td>
<td class="paramname"> <em>params</em> = <code>0</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Execute a control operation. Operations can change the link status or can query the aligned status. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>oper</em> </td><td>Operation to execute </td></tr>
<tr><td valign="top"></td><td valign="top"><em>params</em> </td><td>Optional parameters for the operation </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>True if the command completed successfully, for query operations also indicates the data link is aligned and operational </dd></dl>
<p>Reimplemented in <a class="el" href="classTelEngine_1_1SS7MTP2.html#50ca140491051ae0a8c3972721cea735">SS7MTP2</a>.</p>
</div>
</div><p>
<a class="anchor" name="7ff19734eb024bd6f3e2ad95647b1b27"></a><!-- doxytag: member="TelEngine::SS7Layer2::notify" ref="7ff19734eb024bd6f3e2ad95647b1b27" args="()" -->
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<td class="memname">void notify </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline, protected]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Notify out user part about a status change
<p>References <a class="el" href="classTelEngine_1_1SS7L2User.html#7de552d8ef950e4007c6f4b135851843">SS7L2User::notify()</a>.</p>
</div>
</div><p>
<a class="anchor" name="8c7a6bd82fdacbdf35b3ae6718e84d71"></a><!-- doxytag: member="TelEngine::SS7Layer2::operational" ref="8c7a6bd82fdacbdf35b3ae6718e84d71" args="() const =0" -->
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<td class="memname">virtual bool operational </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [pure virtual]</code></td>
</tr>
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<p>
Check if the link is fully operational <dl class="return" compact><dt><b>Returns:</b></dt><dd>True if the link is aligned and operational </dd></dl>
<p>Implemented in <a class="el" href="classTelEngine_1_1SS7MTP2.html#66b852359fe289e92aed5c76e0672ce0">SS7MTP2</a>.</p>
</div>
</div><p>
<a class="anchor" name="dc0e3dcfa34a274f6fc661bb58a55711"></a><!-- doxytag: member="TelEngine::SS7Layer2::receivedMSU" ref="dc0e3dcfa34a274f6fc661bb58a55711" args="(const SS7MSU &msu)" -->
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<td class="memname">bool receivedMSU </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classTelEngine_1_1SS7MSU.html">SS7MSU</a> & </td>
<td class="paramname"> <em>msu</em> </td>
<td> ) </td>
<td><code> [inline, protected]</code></td>
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<p>
Push a received <a class="el" href="classTelEngine_1_1Message.html" title="A message container class.">Message</a> Signal Unit up the protocol stack <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>msu</em> </td><td><a class="el" href="classTelEngine_1_1Message.html" title="A message container class.">Message</a> data, starting with Service Indicator Octet </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>True if message was successfully delivered to the user component </dd></dl>
<p>References <a class="el" href="classTelEngine_1_1SS7L2User.html#aedf3bf8b8b1119ac9be9e9e89067293">SS7L2User::receivedMSU()</a>.</p>
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<a class="anchor" name="0645d950faabfad06fa0ab8c56f3a7e3"></a><!-- doxytag: member="TelEngine::SS7Layer2::recoverMSU" ref="0645d950faabfad06fa0ab8c56f3a7e3" args="()=0" -->
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<td class="memname">virtual <a class="el" href="classTelEngine_1_1ObjList.html">ObjList</a>* recoverMSU </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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<p>
Remove the MSUs waiting in the transmit queue and return them <dl class="return" compact><dt><b>Returns:</b></dt><dd>List of MSUs taken from the queue </dd></dl>
<p>Implemented in <a class="el" href="classTelEngine_1_1SS7MTP2.html#618e6c1d85bb260b24d80869b5a2640c">SS7MTP2</a>.</p>
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<a class="anchor" name="bd3c3e1681ea40d38639c5d867971995"></a><!-- doxytag: member="TelEngine::SS7Layer2::sls" ref="bd3c3e1681ea40d38639c5d867971995" args="(int linkSel)" -->
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<td class="memname">void sls </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>linkSel</em> </td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>
Assign a new Signalling Link Selection number <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>linkSel</em> </td><td>New SLS to assign to this link </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="df8afa35ee8b6e974433e3127ef0d8f9"></a><!-- doxytag: member="TelEngine::SS7Layer2::sls" ref="df8afa35ee8b6e974433e3127ef0d8f9" args="() const " -->
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<td class="memname">int sls </td>
<td>(</td>
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<td> const<code> [inline]</code></td>
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<p>
Get the Signalling Link Selection number allocated to this link <dl class="return" compact><dt><b>Returns:</b></dt><dd>SLS value assigned by the upper layer </dd></dl>
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<a class="anchor" name="59186288b9d2caffa27a86f0b7f5af60"></a><!-- doxytag: member="TelEngine::SS7Layer2::status" ref="59186288b9d2caffa27a86f0b7f5af60" args="() const " -->
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<td class="memname">virtual unsigned int status </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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<p>
Retrive the current link status indications <dl class="return" compact><dt><b>Returns:</b></dt><dd>Link status indication bits </dd></dl>
<p>Reimplemented in <a class="el" href="classTelEngine_1_1SS7MTP2.html#59186288b9d2caffa27a86f0b7f5af60">SS7MTP2</a>.</p>
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<a class="anchor" name="0dc0514c3067fd19b911a18d9e226f91"></a><!-- doxytag: member="TelEngine::SS7Layer2::statusName" ref="0dc0514c3067fd19b911a18d9e226f91" args="(bool brief=false) const " -->
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<td class="memname">const char* statusName </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>brief</em> = <code>false</code> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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Get the name of the current local Layer 2 status <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>brief</em> </td><td>Request to return the short status name </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="classTelEngine_1_1String.html" title="A C-style string handling class.">String</a> describing the status </dd></dl>
<p>References <a class="el" href="yatesig_8h-source.html#l03704">SS7Layer2::statusName()</a>.</p>
<p>Referenced by <a class="el" href="yatesig_8h-source.html#l03704">SS7Layer2::statusName()</a>.</p>
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<a class="anchor" name="1ae6b2425baaad8a031fadf5d03555a9"></a><!-- doxytag: member="TelEngine::SS7Layer2::statusName" ref="1ae6b2425baaad8a031fadf5d03555a9" args="(unsigned int status, bool brief) const " -->
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<td class="memname">virtual const char* statusName </td>
<td>(</td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>status</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>brief</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td> const<code> [virtual]</code></td>
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Get the name of a Layer 2 status <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>status</em> </td><td>Status indication value </td></tr>
<tr><td valign="top"></td><td valign="top"><em>brief</em> </td><td>Request to return the short status name </td></tr>
</table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="classTelEngine_1_1String.html" title="A C-style string handling class.">String</a> describing the status </dd></dl>
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<a class="anchor" name="4f0c219925986daf6cb15d727a1bef9a"></a><!-- doxytag: member="TelEngine::SS7Layer2::transmitMSU" ref="4f0c219925986daf6cb15d727a1bef9a" args="(const SS7MSU &msu)=0" -->
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<td class="memname">virtual bool transmitMSU </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classTelEngine_1_1SS7MSU.html">SS7MSU</a> & </td>
<td class="paramname"> <em>msu</em> </td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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Push a <a class="el" href="classTelEngine_1_1Message.html" title="A message container class.">Message</a> Signal Unit down the protocol stack <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>msu</em> </td><td><a class="el" href="classTelEngine_1_1Message.html" title="A message container class.">Message</a> data, starting with Service Indicator Octet </td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>True if message was successfully queued </dd></dl>
<p>Implemented in <a class="el" href="classTelEngine_1_1SS7MTP2.html#1d079768629f47f3e120b3554102862f">SS7MTP2</a>.</p>
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<a class="anchor" name="36cbffd7c8c86883f041f9fcf86525a2"></a><!-- doxytag: member="TelEngine::SS7Layer2::user" ref="36cbffd7c8c86883f041f9fcf86525a2" args="() const " -->
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<td class="memname"><a class="el" href="classTelEngine_1_1SS7L2User.html">SS7L2User</a>* user </td>
<td>(</td>
<td class="paramname"> </td>
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<td> const<code> [inline]</code></td>
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Get the Layer 2 user component that works with this data link <dl class="return" compact><dt><b>Returns:</b></dt><dd>Pointer to the user component to which the messages are sent </dd></dl>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="yatesig_8h-source.html">yatesig.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Sun Dec 7 21:36:14 2008 for Yate by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.7.1 </small></address>
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