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<CENTER><B><FONT SIZE=+2>ACE Tutorial 018</FONT></B></CENTER>
<CENTER><B><FONT SIZE=+2>The FIFO Nature of ACE_Token</FONT></B></CENTER>
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Our main() just keeps getting simpler! I guess that's a good thing.
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What we've done is create two Task-derived objects that test different
locking mechanisms. The Token object uses ACE_Token and the Mutex
object uses ACE_Mutex. When you execute the application you should
see quite a difference in thread utilization. At the end of the
tutorial I've included a link to the output of a typical run of the
application.
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<font color=red>// page02.html,v 1.7 2000/03/19 20:09:32 jcej Exp</font>
<font color=red>// Get our two Test derivatives...</font>
<font color=blue>#include</font> "<font color=green>Token_i.h</font>"
<font color=blue>#include</font> "<font color=green>Mutex_i.h</font>"
int main(int,char**)
{
<font color=red>// See what an ACE_Token does for us.</font>
Token token;
token.run();
<font color=red>// And now the ACE_Mutex.</font>
Mutex mutex;
mutex.run();
return(0);
}
<font color=blue>#if defined</font> (<font color=purple>ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION</font>)
template class Test_T <ACE_Mutex>;
template class Test_T <ACE_Token>;
template class ACE_Atomic_Op <ACE_Mutex, int>;
<font color=blue>#elif defined</font> (<font color=purple>ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA</font>)
<font color=blue>#pragma</font> <font color=purple>instantiate</font> Test_T <ACE_Mutex>
<font color=blue>#pragma</font> <font color=purple>instantiate</font> Test_T <ACE_Token>
<font color=blue>#pragma</font> <font color=purple>instantiate</font> ACE_Atomic_Op <ACE_Mutex, int>
<font color=blue>#endif</font> <font color=red>/* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */</font>
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