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  • Committer: Bazaar Package Importer
  • Author(s): Adam Conrad, Benjamin Montgomery, Adam Conrad
  • Date: 2005-09-18 22:51:38 UTC
  • mfrom: (1.2.1 upstream) (2.1.1 sarge) (0.1.2 woody)
  • Revision ID: james.westby@ubuntu.com-20050918225138-seav22q6fyylb536
Tags: 5.4.7-3ubuntu1
[ Benjamin Montgomery ]
* Added a patch for amd64 and powerpc that disables the compiler
  option -fvisibility-inlines-hidden

[ Adam Conrad ]
* Added DPATCH_OPTION_CPP=1 to debian/patches/00options to make
  Benjamin's above changes work correctly with dpatch.

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docs/tutorials/Chap_4/ex03.html
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<HTML>
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<!-- ex03.html,v 1.2 2000/06/04 22:02:08 brunsch Exp -->
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<HEAD>
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   <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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   <META NAME="Author" CONTENT="Ambreen Ilyas">
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   <META NAME="GENERATOR" CONTENT="Mozilla/4.05 [en] (X11; I; SunOS 5.5.1 sun4u) [Netscape]">
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   <TITLE>Example 3</TITLE>
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</HEAD>
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<BODY>
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<FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT>
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<BR><FONT COLOR="#CC0000">//// This example is from the ACE Programmers
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Guide.</FONT>
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<BR><FONT COLOR="#CC0000">////&nbsp; Chapter:&nbsp; "Thread Management"</FONT>
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<BR><FONT COLOR="#CC0000">//// For details please see the guide at</FONT>
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<BR><FONT COLOR="#CC0000">//// http://www.cs.wustl.edu/~schmidt/ACE.html</FONT>
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<BR><FONT COLOR="#CC0000">////&nbsp; AUTHOR: Umar Syyid (usyyid@hns.com)</FONT>
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<BR><FONT COLOR="#CC0000">//// and Ambreen Ilyas (ambreen@bitsmart.com)</FONT>
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<BR><FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT>
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<P><FONT COLOR="#CC0000">//Example 3</FONT>
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<BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/OS.h"</FONT>
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<BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Synch.h"</FONT>
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<BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/Synch_T.h"</FONT>
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<P><FONT COLOR="#FF0000">//Arguments that are to be passed to the worker
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thread are passed through this class.</FONT>
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<BR>class Args{
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<BR>public:
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<BR>Args(ACE_Lock* lock,int iterations):
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<BR>&nbsp;mutex_(lock),iterations_(iterations){}
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<BR>ACE_Lock* mutex_;
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<BR>int iterations_;
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<BR>};
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<P><FONT COLOR="#FF0000">//The starting point for the worker threads</FONT>
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<BR>static void*
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<BR>worker(void*arguments){
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<BR>Args *arg= (Args*) arguments;
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<BR>for(int i=0;i&lt;arg->iterations_;i++){
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<BR>&nbsp;ACE_DEBUG((LM_DEBUG,
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<BR>&nbsp;&nbsp;&nbsp; "(%t) Trying to get a hold of this iteration\n"));
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<BR><FONT COLOR="#FF0000">&nbsp;//This is our critical section</FONT>
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<BR>&nbsp;arg->mutex_->acquire();
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<BR>&nbsp;ACE_DEBUG((LM_DEBUG,"(%t) This is iteration number %d\n",i));
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<BR><FONT COLOR="#FF0000">&nbsp;//work</FONT>
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<BR>&nbsp;ACE_OS::sleep(2);
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<BR>&nbsp;arg->mutex_->release();
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<BR>&nbsp;}
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<BR>return 0;
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<BR>}
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<P>int main(int argc, char*argv[]){
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<BR>if(argc&lt;4){
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<BR>&nbsp;ACE_OS::printf("Usage: egx &lt;number_of_threads>
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<BR>&nbsp;&nbsp;&nbsp;&nbsp; &lt;number_of_iterations> &lt;lock_type>\n");
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<BR>&nbsp;ACE_OS::exit(1);
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<BR>&nbsp;}
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<BR><FONT COLOR="#FF0000">//Lock used by application</FONT>
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<BR>ACE_Lock *lock;
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<P><FONT COLOR="#FF0000">//Decide which lock you want to use at run time.
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Possible due to</FONT>
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<BR><FONT COLOR="#FF0000">//ACE_Lock.</FONT>
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<BR>if(ACE_OS::strcmp(argv[3],"Thread"))
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<BR>&nbsp;lock=new ACE_Lock_Adapter&lt;ACE_Thread_Mutex>;
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<BR>else
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<BR>&nbsp;lock=new ACE_Lock_Adapter&lt;ACE_Mutex>
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<P><FONT COLOR="#FF0000">//Setup the arguments</FONT>
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<BR>Args arg(lock,ACE_OS::atoi(argv[2]));
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<BR><FONT COLOR="#FF0000">//Spawn the worker threads</FONT>
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<BR>ACE_Thread::spawn_n
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<BR>&nbsp;&nbsp;&nbsp; (ACE_OS::atoi(argv[1]),(ACE_THR_FUNC)worker,(void*)&amp;arg);
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<BR>while(ACE_Thread::join(NULL,NULL,NULL)==0);
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<BR>}
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<P>&nbsp;<A HREF="ex04.html">Next Example</A>
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</BODY>
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</HTML>