Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_msg_q_client_8c_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>TB9.2 Example Applications: examples/PIPS/opencmessagequeuelibraryex/exe/src/MsgQClient.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.6.2 -->
<h1>examples/PIPS/opencmessagequeuelibraryex/exe/src/MsgQClient.c</h1><a href="_msg_q_client_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00014"></a>00014 <span class="preprocessor"># include <pthread.h></span>
<a name="l00015"></a>00015 <span class="preprocessor"># include <stdio.h></span>
<a name="l00016"></a>00016 <span class="preprocessor"># include <string.h></span>
<a name="l00017"></a>00017 <span class="preprocessor"># include <unistd.h></span>
<a name="l00018"></a>00018 <span class="comment">//# include <staticlibinit_gcce.h></span>
<a name="l00019"></a>00019 <span class="preprocessor"># include "<a class="code" href="msgqlib_8h.html">MsgQLib.h</a>"</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 ULONG q1 = 1;
<a name="l00022"></a>00022 ULONG q2 = 2;
<a name="l00023"></a>00023 <span class="keyword">const</span> <span class="keywordtype">int</span> KMaxMsg = 10;
<a name="l00024"></a>00024
<a name="l00029"></a><a class="code" href="_msg_q_client_8c.html#aa6c400c3d8dbbba550d14cc697133e96">00029</a> <span class="keywordtype">void</span> <a class="code" href="_msg_q_client_8c.html#aa6c400c3d8dbbba550d14cc697133e96">ThreadFunction</a>(<span class="keywordtype">int</span> *<span class="keywordtype">id</span>) {
<a name="l00030"></a>00030 <span class="keywordtype">int</span> i = 2;
<a name="l00031"></a>00031 <span class="keywordtype">int</span> err = 0;
<a name="l00032"></a>00032 <span class="keywordtype">int</span> result = 0;
<a name="l00033"></a>00033 <span class="keywordtype">int</span> pri = MSG_PRI_NORMAL;
<a name="l00034"></a>00034 <span class="keywordtype">int</span> timeout = NO_WAIT;
<a name="l00035"></a>00035 <span class="keywordtype">int</span> len = 100;
<a name="l00036"></a>00036 <span class="keywordtype">int</span> nBytes;
<a name="l00037"></a>00037 <span class="keywordtype">char</span> smsg[] = <span class="stringliteral">"Sending Some Data through MsgQ"</span>;
<a name="l00038"></a>00038 <span class="keywordtype">char</span> rmsg[100];
<a name="l00039"></a>00039 ULONG queueOne = q1;
<a name="l00040"></a>00040 ULONG queueTwo = q2;
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="comment">//If 2nd Thread</span>
<a name="l00043"></a>00043 <span class="keywordflow">if</span>(*<span class="keywordtype">id</span> == q2) {
<a name="l00044"></a>00044 queueOne = q2;
<a name="l00045"></a>00045 queueTwo = q1;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048 printf(<span class="stringliteral">"Thread %d: Started..\n"</span>, *<span class="keywordtype">id</span>);
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">/* Try to Create queueOne again, this will create the queue again,</span>
<a name="l00051"></a>00051 <span class="comment"> this will just return as its already created by main thread */</span>
<a name="l00052"></a>00052 result = <a class="code" href="msgqlib_8h.html#acc58bf2bd8d3b904069d8d604ccea5b1">MsgQCreate</a>(queueOne, KMaxMsg, MSG_Q_FIFO, &err);
<a name="l00053"></a>00053 printf(<span class="stringliteral">"Thread %d: Q CREATE result = %d\n"</span>, *<span class="keywordtype">id</span>, result);
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordflow">while</span>(i>=0) {
<a name="l00056"></a>00056
<a name="l00057"></a>00057 nBytes = strlen(smsg);
<a name="l00058"></a>00058 <span class="comment">/* Send Message to queueOne */</span>
<a name="l00059"></a>00059 result = <a class="code" href="msgqlib_8h.html#a5272782967b922604e4f47e8bc67a468">MsgQSend</a>(queueOne, smsg, nBytes, pri, timeout, &err);
<a name="l00060"></a>00060 printf(<span class="stringliteral">"Thread %d: Q SEND result = %d\n"</span>, *<span class="keywordtype">id</span>, result);
<a name="l00061"></a>00061
<a name="l00062"></a>00062 sleep(1);
<a name="l00063"></a>00063 rmsg[0] = <span class="charliteral">'\0'</span>;
<a name="l00064"></a>00064 <span class="comment">/* Receive Message from queueTwo */</span>
<a name="l00065"></a>00065 result = <a class="code" href="msgqlib_8h.html#a92645de66865355158589ff1dd7bc28d">MsgQReceive</a>(queueTwo, rmsg, len, timeout, &err);
<a name="l00066"></a>00066 rmsg[result] = <span class="charliteral">'\0'</span>;
<a name="l00067"></a>00067 printf(<span class="stringliteral">"Thread %d: Q RECEIVE result = %d\n"</span>, *<span class="keywordtype">id</span>, result);
<a name="l00068"></a>00068 printf(<span class="stringliteral">"Thread %d: Message Received from Message Queue 2 is : %s\n"</span>, *<span class="keywordtype">id</span>, rmsg);
<a name="l00069"></a>00069 i--;
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 sleep(2);
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">/* delete message queueOne */</span>
<a name="l00074"></a>00074 result=<a class="code" href="msgqlib_8h.html#ae9435d91016cacef90a4d92db16a6fe1">MsgQDelete</a>(queueOne, &err);
<a name="l00075"></a>00075 printf(<span class="stringliteral">"Thread %d: Q DELETE result = %d\n"</span>, *<span class="keywordtype">id</span>, result);
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordtype">int</span> <a class="code" href="redirectprintf_8c.html#a840291bc02cba5474a4cb46a9b9566fe">main</a>() {
<a name="l00080"></a>00080 <span class="keywordtype">int</span> result;
<a name="l00081"></a>00081 <span class="keywordtype">int</span> err;
<a name="l00082"></a>00082 pthread_t thread1;
<a name="l00083"></a>00083 pthread_t thread2;
<a name="l00084"></a>00084
<a name="l00085"></a>00085 printf(<span class="stringliteral">"Main Thread: Started..\n"</span>);
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="comment">/* Create 2 Message Queues */</span>
<a name="l00088"></a>00088 result = <a class="code" href="msgqlib_8h.html#acc58bf2bd8d3b904069d8d604ccea5b1">MsgQCreate</a>(q1, KMaxMsg, MSG_Q_FIFO, &err);
<a name="l00089"></a>00089 printf(<span class="stringliteral">"Main Thread: Q CREATE result = %d\n"</span>,result);
<a name="l00090"></a>00090
<a name="l00091"></a>00091 result = <a class="code" href="msgqlib_8h.html#acc58bf2bd8d3b904069d8d604ccea5b1">MsgQCreate</a>(q2, KMaxMsg, MSG_Q_FIFO, &err);
<a name="l00092"></a>00092 printf(<span class="stringliteral">"Main Thread: Q CREATE result = %d\n"</span>,result);
<a name="l00093"></a>00093
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="comment">/* Create 2 Threads */</span>
<a name="l00096"></a>00096 <span class="keywordflow">if</span>(pthread_create(&thread1, NULL, (thread_begin_routine)<a class="code" href="_msg_q_client_8c.html#aa6c400c3d8dbbba550d14cc697133e96">ThreadFunction</a>, (<span class="keywordtype">void</span>*) &q1) != 0) {
<a name="l00097"></a>00097 printf(<span class="stringliteral">"Main Thread: Failed to create the threadOne\n"</span>);
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordflow">if</span>(pthread_create(&thread2, NULL, (thread_begin_routine)ThreadFunction, (<span class="keywordtype">void</span>*) &q2) != 0) {
<a name="l00101"></a>00101 printf(<span class="stringliteral">"Main Thread: Failed to create the threadTwo\n"</span>);
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">/* Wait for the threads to complete */</span>
<a name="l00105"></a>00105 pthread_join(thread1, NULL);
<a name="l00106"></a>00106 pthread_join(thread2, NULL);
<a name="l00107"></a>00107 printf(<span class="stringliteral">"Main Thread: Exiting from Main() \nMain Thread: Enter a Key to Exit"</span>);
<a name="l00108"></a>00108 getchar();
<a name="l00109"></a>00109 <span class="keywordflow">return</span> 0;
<a name="l00110"></a>00110 }
</pre></div></div>
<hr size="1"/><address style="text-align: right;"><small>Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
</body>
</html>