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-<HTML>
-<HEAD>
- <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
- <META NAME="Author" CONTENT="James CE Johnson">
- <TITLE>ACE Tutorial 020</TITLE>
-</HEAD>
-<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F">
-
-<CENTER><B><FONT SIZE=+2>ACE Tutorial 020</FONT></B></CENTER>
-
-<CENTER><B><FONT SIZE=+2>Sharing your Memories with persistence</FONT></B></CENTER>
-
-<P>
-<HR WIDTH="100%">
-The mmap.h where we define stuff that needs to be shared between the
- apps at compile-time.
-<hr>
-<HR width=50%><P><center>mmap.h</center><HR width=50%>
-<PRE>
-<font color=red>// $Id$</font>
-
-<font color=blue>#ifndef</font> <font color=purple>MMAP_H</font>
-<font color=blue>#define</font> <font color=purple>MMAP_H</font>
-
-<font color=red>// The expected filename for ACE_Shared_Memory_MM.h</font>
-<font color=blue>#include</font> "<A HREF="../../../ace/Shared_Memory_MM.h">ace/Shared_Memory_MM.h</A>"
-
-<font color=red>// Just enough for the alphabet...</font>
-<font color=blue>#define</font> <font color=purple>SHMSZ</font> 27
-
-<font color=red>/*
- Here we use a real filename instead of an arbitrary number. This
- actually will exist in the filesystem. You can 'cat' it and
- everything!
-*/</font>
-<font color=blue>#define</font> <font color=purple>SHM_KEY</font> "<font color=green>mmapfile</font>"
-
-<font color=red>/*
- The SV Shared Memory SharedData object returns. It is identical to
- the one we used in that tutorial. I didn't even change the name.
- */</font>
-class SharedData
-{
-public:
- SharedData (int initialize = 1);
-
- void set (void);
- void show (void);
- int available (void);
- void available (int not_in_use);
-
-protected:
- char buf_[128];
- int available_;
-};
-
-<font color=blue>#endif</font> <font color=red>/* MMAP_H */</font>
-</PRE>
-<HR width=50%><P><center>mmap.cpp</center><HR width=50%>
-<PRE>
-
-<font color=red>// $Id$</font>
-
-<font color=blue>#include</font> "<font color=green>mmap.h</font>"
-
-<font color=#008888>SharedData::SharedData</font>(int _initialize)
- : available_(0)
-{
- if( _initialize )
- {
- <font color=#008888>ACE_OS::sprintf</font>(buf_,"<font color=green>UNSET\n</font>");
- }
-}
-
-void <font color=#008888>SharedData::set</font>(void)
-{
- <font color=#008888>ACE_OS::sprintf</font>(buf_,"<font color=green>My PID is (%d)\n</font>",ACE_OS::getpid());
-}
-
-void <font color=#008888>SharedData::show</font>(void)
-{
- ACE_DEBUG ((LM_INFO, "<font color=green>(%P|%t) Shared Data text is (%s)\n</font>",
- buf_ ));
-}
-
-int <font color=#008888>SharedData::available</font>(void)
-{
- return available_;
-}
-
-void <font color=#008888>SharedData::available</font>(int _available)
-{
- available_ = _available;
-}
-</PRE>
-<P><HR WIDTH="100%">
-<CENTER>[<A HREF="../online-tutorials.html">Tutorial Index</A>] [<A HREF="page06.html">Continue This Tutorial</A>]</CENTER>