_chat_inet_8cpp-source.html

一个聊天的软件

<a name="l00435"></a>00435     <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a> )
<a name="l00436"></a>00436         {
<a name="l00437"></a>00437         <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a>-&gt;CancelRead();  
<a name="l00438"></a>00438         }
<a name="l00439"></a>00439 
<a name="l00440"></a>00440     <span class="keywordflow">if</span> ( IsActive() )
<a name="l00441"></a>00441         {
<a name="l00442"></a>00442         Cancel();
<a name="l00443"></a>00443         }
<a name="l00444"></a>00444       
<a name="l00445"></a>00445     TBufC&lt;KChatTextBufLength&gt; message ( aText );
<a name="l00446"></a>00446     <a class="code" href="class_c_chat_base.html#deacd9f98d0548748cf116698aea2be0">SetState</a>( ESendingMessage );
<a name="l00447"></a>00447     HBufC* tempString = HBufC::NewL( message.Length() );
<a name="l00448"></a>00448     tempString-&gt;Des().Copy( message );
<a name="l00449"></a>00449     
<a name="l00450"></a>00450     <a class="code" href="class_c_chat_inet.html#83107f9dbd3370ed4e809e8cc7b35380">iMessage</a> = HBufC8::NewL(tempString-&gt;Length());
<a name="l00451"></a>00451     <a class="code" href="class_c_chat_inet.html#83107f9dbd3370ed4e809e8cc7b35380">iMessage</a>-&gt;Des().Copy( *tempString );
<a name="l00452"></a>00452     
<a name="l00453"></a>00453     <span class="comment">// write message to socket</span>
<a name="l00454"></a>00454     <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a> )
<a name="l00455"></a>00455         {
<a name="l00456"></a>00456         <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a>-&gt;Write( *<a class="code" href="class_c_chat_inet.html#83107f9dbd3370ed4e809e8cc7b35380">iMessage</a>, iStatus );
<a name="l00457"></a>00457         }
<a name="l00458"></a>00458     <span class="keyword">delete</span> tempString;
<a name="l00459"></a>00459     SetActive();
<a name="l00460"></a>00460     }
<a name="l00461"></a>00461 
<a name="l00462"></a>00462 
<a name="l00463"></a>00463 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00464"></a>00464 <span class="comment">// CChatInet::StartL()</span>
<a name="l00465"></a>00465 <span class="comment">// Starts the server.</span>
<a name="l00466"></a>00466 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00467"></a>00467 <span class="comment">//</span>
<a name="l00468"></a><a class="code" href="class_c_chat_inet.html#4dc55dfb9b7a14b604eac53f42d0a222">00468</a> <span class="keywordtype">void</span> <a class="code" href="class_c_chat_inet.html#4dc55dfb9b7a14b604eac53f42d0a222">CChatInet::StartL</a>()
<a name="l00469"></a>00469     {
<a name="l00470"></a>00470     <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_base.html#af77e92297a4bac4704e440284577ebe">State</a>() != EDisconnected )
<a name="l00471"></a>00471         {
<a name="l00472"></a>00472         User::Leave( KErrInUse );
<a name="l00473"></a>00473         }
<a name="l00474"></a>00474     
<a name="l00475"></a>00475     User::LeaveIfError( <a class="code" href="class_c_chat_inet.html#f702971f167e073a81134fd2876d0298">iConnection</a>.Open( <a class="code" href="class_c_chat_inet.html#56bd53f21c6818eaa0d4a1ad2c7c5a84">iSocketServer</a>, KAfInet) );
<a name="l00476"></a>00476     
<a name="l00477"></a>00477     User::LeaveIfError( <a class="code" href="class_c_chat_inet.html#f702971f167e073a81134fd2876d0298">iConnection</a>.Start() );
<a name="l00478"></a>00478       
<a name="l00479"></a>00479     TInt result( 0 );
<a name="l00480"></a>00480     
<a name="l00481"></a>00481     result = <a class="code" href="class_c_chat_inet.html#4791a9b2a2447d2068a89acb05c8c25b">iSocket</a>.Open( <a class="code" href="class_c_chat_inet.html#56bd53f21c6818eaa0d4a1ad2c7c5a84">iSocketServer</a>, 
<a name="l00482"></a>00482         KAfInet, 
<a name="l00483"></a>00483         KSockStream, 
<a name="l00484"></a>00484         KProtocolInetTcp );
<a name="l00485"></a>00485       
<a name="l00486"></a>00486     <span class="keywordflow">if</span> ( result != KErrNone )
<a name="l00487"></a>00487         {
<a name="l00488"></a>00488         <a class="code" href="class_c_chat_inet.html#56bd53f21c6818eaa0d4a1ad2c7c5a84">iSocketServer</a>.Close();
<a name="l00489"></a>00489         User::Leave( result ); 
<a name="l00490"></a>00490         }
<a name="l00491"></a>00491 
<a name="l00492"></a>00492     TInetAddr addr;
<a name="l00493"></a>00493     <a class="code" href="class_c_chat_inet.html#5d2af0e4e421312918bddbe0e0861f28">iAddress</a>.SetPort( <a class="code" href="class_c_chat_inet.html#ca13b175f9849e6ff5ce23ea58682739">iPort</a> );
<a name="l00494"></a>00494     <a class="code" href="class_c_chat_inet.html#5d2af0e4e421312918bddbe0e0861f28">iAddress</a>.SetFamily( KAfInet );
<a name="l00495"></a>00495 
<a name="l00496"></a>00496     <span class="comment">// bind</span>
<a name="l00497"></a>00497     User::LeaveIfError( <a class="code" href="class_c_chat_inet.html#4791a9b2a2447d2068a89acb05c8c25b">iSocket</a>.Bind( <a class="code" href="class_c_chat_inet.html#5d2af0e4e421312918bddbe0e0861f28">iAddress</a> ) );
<a name="l00498"></a>00498     
<a name="l00499"></a>00499     <span class="comment">// listen</span>
<a name="l00500"></a>00500     User::LeaveIfError( <a class="code" href="class_c_chat_inet.html#4791a9b2a2447d2068a89acb05c8c25b">iSocket</a>.Listen( KListeningQueSize ) );
<a name="l00501"></a>00501 
<a name="l00502"></a>00502     <span class="comment">// close old connection - if any</span>
<a name="l00503"></a>00503     <a class="code" href="class_c_chat_inet.html#43d47cb0a780f4af02110487231ac627">iAcceptedSocket</a>.Close();
<a name="l00504"></a>00504 
<a name="l00505"></a>00505     <span class="comment">// Open abstract socket</span>
<a name="l00506"></a>00506     User::LeaveIfError( <a class="code" href="class_c_chat_inet.html#43d47cb0a780f4af02110487231ac627">iAcceptedSocket</a>.Open( <a class="code" href="class_c_chat_inet.html#56bd53f21c6818eaa0d4a1ad2c7c5a84">iSocketServer</a> ) );  
<a name="l00507"></a>00507   
<a name="l00508"></a>00508     <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a> = &amp;<a class="code" href="class_c_chat_inet.html#43d47cb0a780f4af02110487231ac627">iAcceptedSocket</a>;
<a name="l00509"></a>00509   
<a name="l00510"></a>00510     <span class="comment">// Set the Active Object's State to Connecting indicated.</span>
<a name="l00511"></a>00511     <a class="code" href="class_c_chat_base.html#deacd9f98d0548748cf116698aea2be0">SetState</a>( EGettingConnection );
<a name="l00512"></a>00512 
<a name="l00513"></a>00513     <a class="code" href="class_c_chat_inet.html#4791a9b2a2447d2068a89acb05c8c25b">iSocket</a>.Accept( <a class="code" href="class_c_chat_inet.html#43d47cb0a780f4af02110487231ac627">iAcceptedSocket</a>, iStatus );
<a name="l00514"></a>00514 
<a name="l00515"></a>00515     <a class="code" href="class_c_chat_base.html#3632b5e9a01d31118bbf932b3cd23f34">SetServer</a>( ETrue );
<a name="l00516"></a>00516 
<a name="l00517"></a>00517     <span class="comment">// Set the Active Object Active again,</span>
<a name="l00518"></a>00518     SetActive();
<a name="l00519"></a>00519    
<a name="l00520"></a>00520     }
<a name="l00521"></a>00521 
<a name="l00522"></a>00522 
<a name="l00523"></a>00523 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00524"></a>00524 <span class="comment">// CChatInet::Stop()</span>
<a name="l00525"></a>00525 <span class="comment">// Stops the server.</span>
<a name="l00526"></a>00526 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00527"></a>00527 <span class="comment">//</span>
<a name="l00528"></a><a class="code" href="class_c_chat_inet.html#78109ff8cb02d98ff75ab125fa94a8d4">00528</a> <span class="keywordtype">void</span> <a class="code" href="class_c_chat_inet.html#78109ff8cb02d98ff75ab125fa94a8d4">CChatInet::Stop</a>()
<a name="l00529"></a>00529     {
<a name="l00530"></a>00530     <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_base.html#af77e92297a4bac4704e440284577ebe">State</a>() != EDisconnected )
<a name="l00531"></a>00531         {
<a name="l00532"></a>00532         <span class="comment">// Close() will wait forever for Read to complete</span>
<a name="l00533"></a>00533         <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_base.html#af77e92297a4bac4704e440284577ebe">State</a>() == EConnected )
<a name="l00534"></a>00534             {
<a name="l00535"></a>00535             <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a> )
<a name="l00536"></a>00536                 {
<a name="l00537"></a>00537                 iActiveSocket-&gt;CancelRead();
<a name="l00538"></a>00538                 }
<a name="l00539"></a>00539             }
<a name="l00540"></a>00540         <a class="code" href="class_c_chat_inet.html#43d47cb0a780f4af02110487231ac627">iAcceptedSocket</a>.Close();
<a name="l00541"></a>00541         <a class="code" href="class_c_chat_inet.html#4791a9b2a2447d2068a89acb05c8c25b">iSocket</a>.Close();
<a name="l00542"></a>00542         }
<a name="l00543"></a>00543         <a class="code" href="class_c_chat_base.html#deacd9f98d0548748cf116698aea2be0">SetState</a>( EDisconnected );
<a name="l00544"></a>00544     }
<a name="l00545"></a>00545 
<a name="l00546"></a>00546 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00547"></a>00547 <span class="comment">// CChatInet::RequestData()</span>
<a name="l00548"></a>00548 <span class="comment">// Request data from the client.</span>
<a name="l00549"></a>00549 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00550"></a>00550 <span class="comment">//</span>
<a name="l00551"></a><a class="code" href="class_c_chat_inet.html#06e3ea78e9321c78ffb364082161da6c">00551</a> <span class="keywordtype">void</span> <a class="code" href="class_c_chat_inet.html#06e3ea78e9321c78ffb364082161da6c">CChatInet::RequestData</a>()
<a name="l00552"></a>00552     {
<a name="l00553"></a>00553     <span class="keywordflow">if</span> ( <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a> )
<a name="l00554"></a>00554         {
<a name="l00555"></a>00555         <a class="code" href="class_c_chat_inet.html#42435def2f80909f7700ad684c625f0f">iActiveSocket</a>-&gt;RecvOneOrMore( <a class="code" href="class_c_chat_inet.html#04fb56a9c5c1c56ed0335a50a6065a82">iBuffer</a>, 0, iStatus, <a class="code" href="class_c_chat_inet.html#cb196e8158421aa29d9c132a8522e9b4">iLen</a> );
<a name="l00556"></a>00556         }
<a name="l00557"></a>00557     SetActive();
<a name="l00558"></a>00558     }
<a name="l00559"></a>00559 
<a name="l00560"></a>00560 
<a name="l00561"></a>00561 <span class="comment">// End of File</span>
</pre></div><hr>

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