Sophie: libace5-doc-0:5.4-2mdk i586

libace5-doc-5.4-2mdk.i586.rpm

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   <TITLE>Example 8</TITLE>
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<FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT>
<BR><FONT COLOR="#CC0000">//// This example is from the ACE Programmers
Guide.</FONT>
<BR><FONT COLOR="#CC0000">////&nbsp; Chapter:&nbsp; "Thread Management"</FONT>
<BR><FONT COLOR="#CC0000">//// For details please see the guide at</FONT>
<BR><FONT COLOR="#CC0000">//// http://www.cs.wustl.edu/~schmidt/ACE.html</FONT>
<BR><FONT COLOR="#CC0000">////&nbsp; AUTHOR: Umar Syyid (usyyid@hns.com)</FONT>
<BR><FONT COLOR="#CC0000">//// and Ambreen Ilyas (ambreen@bitsmart.com)</FONT>
<BR><FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT>

<P><FONT COLOR="#CC0000">//Example 8</FONT>
<BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Synch_T.h"</FONT>
<BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Synch.h"</FONT>

<P>ACE_Atomic_Op&lt;ACE_Thread_Mutex,int> foo;

<P>static void*
<BR>worker(void *arg){
<BR>&nbsp; ACE_UNUSED_ARG(arg);
<BR>&nbsp; foo=5;
<BR>&nbsp; ACE_ASSERT (foo == 5);
<BR>&nbsp;
<BR>&nbsp; ++foo;
<BR>&nbsp; ACE_ASSERT (foo == 6);
<BR>&nbsp;
<BR>&nbsp; --foo;
<BR>&nbsp; ACE_ASSERT (foo == 5);
<BR>&nbsp;
<BR>&nbsp; foo += 10;
<BR>&nbsp; ACE_ASSERT (foo == 15);
<BR>&nbsp;
<BR>&nbsp; foo -= 10;
<BR>&nbsp; ACE_ASSERT (foo == 5);
<BR>&nbsp;
<BR>&nbsp; foo = 5L;
<BR>&nbsp; ACE_ASSERT (foo == 5);
<BR>&nbsp;return 0;
<BR>}

<P>int main(int argc, char *argv[]){
<BR>if(argc&lt;2){
<BR>&nbsp;ACE_DEBUG((LM_DEBUG,"Usage: &lt;program_name> &lt;number of threads>\n"));
<BR>&nbsp;ACE_OS::exit(1);
<BR>&nbsp;}
<BR>&nbsp;
<BR>int n_threads=ACE_OS::atoi(argv[1]);
<BR>ACE_DEBUG((LM_DEBUG,"Preparing to spawn %d threads\n",n_threads));
<BR>&nbsp;

<P><FONT COLOR="#FF0000">//Spawn off n_threads number of threads</FONT>
<BR>for(int i=0; i&lt;n_threads; i++){
<BR>&nbsp;if(ACE_Thread::spawn((ACE_THR_FUNC)worker,0,THR_DETACHED|THR_NEW_LWP)==-1)
<BR>&nbsp; ACE_DEBUG((LM_DEBUG,"Error in spawning thread\n"));
<BR>&nbsp;}

<P><FONT COLOR="#FF0000">//Wait for all the other threads to let the main
thread know when it is time to exit</FONT>
<BR>while(ACE_Thread::join(NULL,NULL,NULL)==0);
<BR>ACE_DEBUG((LM_DEBUG,"(%t)Other threads are finished. Program exiting..\n"));
<BR>}

<P>&nbsp;<A HREF="../Chap_5/ex01.html">Next Example</A>
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