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diff --git a/docs/tutorials/005/page04.html b/docs/tutorials/005/page04.html deleted file mode 100644 index 641fd89da24..00000000000 --- a/docs/tutorials/005/page04.html +++ /dev/null @@ -1,126 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> -<HTML> -<HEAD> - <TITLE>ACE Tutorial 005</TITLE> - <META NAME="GENERATOR" CONTENT="Mozilla/3.0Gold (Win95; I) [Netscape]"> - <META NAME="Author" CONTENT="Billy Quinn"> - <META NAME="Description" CONTENT="A first step towards using ACE productively"> -</HEAD> -<BODY text = "#000000" link="#000fff" vlink="#ff0f0f" bgcolor="#ffffff"> - - -<CENTER><P><B><FONT SIZE=+2>ACE Tutorial 005<BR> -Creating a MultiThreaded Server </FONT></B></P></CENTER> - -<P> -<HR WIDTH="100%"></P> - -<P>Our next step in building the multi-theaded server is to define the -classes which will carry out the processing after a connection has been -accepted by the acceptor. Given that the overall purpose of this tutorial -was to have a thread and reactor for each connection, we could also implement -multiple connections per reactor. Althought this is not necessary in this -example, it is beneficial to examine how this could be done for future -tutorials that will build on the concept. To do this we need some mechanism -for tracking the number of connections that are associated with a particular -reactor. We can achieve this by deriving a class from base class <I>ACE_Reactor</I> -and holding a private variable associated with the derived <I>Logging_Handler -</I>object. This will be incremented and decremented as client connections -are added and deleted respectively. Yeah, I know this mechanism is crude -..... but show me another way of doing it !! The dervied class definition -is as follows : </P> - -<UL> -<PRE>1. class Reactor_Derived : public ACE_Reactor - - { - - - - public : - -2. Reactor_Derived() : () - - { - -3. counter = 0; - - } - - - -4. virtual ~Reactor_Derived() - - { - - - - } - - - - private : - -5. friend class Logging_Handler; - - - - // counter is used to keep track of the number of service handlers - - // registered with this reactor - -6. int counter; - - }; - - - - - -</PRE> -</UL> - -<P> -<HR WIDTH="100%"></P> - -<P>Here's the step-by-step explanation:</P> - -<OL> -<LI>Declaration for the subclassed-reactor which is derived from the ACE_Reactor -base class. In our <I>Logging_Handler</I> object we will declare an object of this type instead of declaring an object of type <I>ACE_Reactor</I>.</LI> - -<LI>Constructor for our subclassed-reactor. Notice the empty parentheses -- This calls the parent class constructor.</LI> - -<LI>Set our connection counter variable to 0.</LI> - -<LI>Our default constructor does nothing. We've moved anything with failure -potential into the <I>open</I> function. Should the constructor be virtual?</LI> - -<LI>Declare the Logging_Handler class to be a friend class of this object. -This allows the Logging_Handler class to access our private connection -counter variable , allowing it to detect when all of our connections have -been terminated for this reactor object.</LI> - -<LI>Our private counter variable which is used to count the number of connections -registered with this reactor. </LI> - -<P>Now that the special reactor has been defined, we will define the final -class in our multi-threaded server, the Logging_Handler.</P> - -<OL> -<OL> -<OL> -<OL> -<OL> -<P>[<A HREF="..">Tutorial Index</A>] [<A HREF="page03.html">Previous Page</A>] -[<A HREF="page05.html">Continue This Tutorial</A>] </P> -</OL> -</OL> -</OL> -</OL> -</OL> -</OL> - -</BODY> -</HTML> |