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diff --git a/docs/tutorials/014/page04.html b/docs/tutorials/014/page04.html deleted file mode 100644 index e4ca848ff76..00000000000 --- a/docs/tutorials/014/page04.html +++ /dev/null @@ -1,109 +0,0 @@ -<HTML> -<HEAD> - <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> - <META NAME="Author" CONTENT="Bob McWhirter"> - <TITLE>ACE Tutorial 014</TITLE> -</HEAD> -<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F"> - -<CENTER><B><FONT SIZE=+2>ACE Tutorial 014</FONT></B></CENTER> - -<CENTER><B><FONT SIZE=+2>ACE_Stream Tutorial, Of Sorts</FONT></B></CENTER> - -<P> -<HR WIDTH="100%"> -<P> -As stated in the comments below, the default action of the task at the - stream tail is to treat any received data as an error. In our - implementation it will often happen that data gets through to - the tail. How, then, do we handle this without creating an - error condition? Simple: Create a custom Task for use as the - stream tail that doesn't consider it an error to receive data. -<P> -Read on... -<P> -<HR WIDTH="100%"> -<PRE> - -<font color=red>// $Id$</font> - -<font color=red>// EndTask.h</font> -<font color=red>//</font> -<font color=red>// Tutorial regarding a way to use ACE_Stream.</font> -<font color=red>//</font> -<font color=red>// written by bob mcwhirter (bob@netwrench.com)</font> -<font color=red>//</font> -<font color=red>//</font> - -<font color=blue>#ifndef</font> <font color=purple>ENDTASK_H</font> -<font color=blue>#define</font> <font color=purple>ENDTASK_H</font> - -<font color=blue>#include</font> "<font color=green>Task.h</font>" - -<font color=red>// When you setup a Stream and push your modules on,</font> -<font color=red>// there are two additional modules that go unseen</font> -<font color=red>// by the user.</font> -<font color=red>//</font> -<font color=red>// The Stream pushes on a Stream_Head in front of</font> -<font color=red>// your first module, and a Stream_Tail behind your</font> -<font color=red>// last module.</font> -<font color=red>//</font> -<font color=red>// If your put() a message to the Stream Tail, it</font> -<font color=red>// assumes you did so in error. This simple EndTask</font> -<font color=red>// class allows you to push a message to it and just</font> -<font color=red>// have it safely Go Away.</font> -<font color=red>//</font> -<font color=red>// All this Task does is release the Message_Block</font> -<font color=red>// and return 0. It's a suitable black-hole.</font> - - -class EndTask : public Task -{ - -public: - - typedef Task inherited; - - EndTask(const char *nameOfTask) : - inherited(nameOfTask, 0) { - - <font color=red>// when we get open()'d, it with 0 threads</font> - <font color=red>// since there is actually no processing to do.</font> - - cerr << __LINE__ << "<font color=green> </font>" << __FILE__ << endl; - }; - - virtual int open(void *) - { - cerr << __LINE__ << "<font color=green> </font>" << __FILE__ << endl; - return 0; - } - - virtual int open(void) - { - cerr << __LINE__ << "<font color=green> </font>" << __FILE__ << endl; - return 0; - } - - virtual ~EndTask(void) { - }; - - virtual int put(ACE_Message_Block *message, - ACE_Time_Value *timeout) { - - cerr << __LINE__ << "<font color=green> </font>" << __FILE__ << endl; - ACE_UNUSED_ARG(timeout); - - <font color=red>// we don't have anything to do, so</font> - <font color=red>// release() the message.</font> - ACE_DEBUG ((LM_DEBUG, "<font color=green>(%P|%t) %s <font color=#008888>EndTask::put</font>() -- releasing Message_Block\n</font>", this->nameOfTask())); - message->release(); - return 0; - }; - -}; - -<font color=blue>#endif</font> <font color=red>// ENDTASK_H</font> -</PRE> -<P><HR WIDTH="100%"> -<CENTER>[<A HREF="../online-tutorials.html">Tutorial Index</A>] [<A HREF="page05.html">Continue This Tutorial</A>]</CENTER> |