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diff --git a/docs/tutorials/015/page12.html b/docs/tutorials/015/page12.html deleted file mode 100644 index 81528f63c79..00000000000 --- a/docs/tutorials/015/page12.html +++ /dev/null @@ -1,98 +0,0 @@ -<HTML> -<HEAD> - <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> - <META NAME="Author" CONTENT="James CE Johnson"> - <TITLE>ACE Tutorial 015</TITLE> -</HEAD> -<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F"> - -<CENTER><B><FONT SIZE=+2>ACE Tutorial 015</FONT></B></CENTER> - -<CENTER><B><FONT SIZE=+2>Building a protocol stream</FONT></B></CENTER> - -<P> -<HR WIDTH="100%"> -And now the implementation of the Protocol_Stream. There are more -lines of code here than we've seen so far but it still isn't -complicated. The basic idea is to construct the ACE_Stream with our -set of protocol objects that will manipulate the data. Our primary -concern in this file is to get everything in the correct order! -<HR> -<PRE> - -<font color=red>// $Id$</font> - -<font color=blue>#ifndef</font> <font color=purple>PROTOCOL_TASK_H</font> -<font color=blue>#define</font> <font color=purple>PROTOCOL_TASK_H</font> - -<font color=blue>#include</font> "<font color=green>ace/Task.h</font>" - -<font color=blue>#if !defined</font> (<font color=purple>ACE_LACKS_PRAGMA_ONCE</font>) -# pragma once -<font color=blue>#endif</font> <font color=red>/* ACE_LACKS_PRAGMA_ONCE */</font> - -<font color=red>/* A typical ACE_Task<> derivative that adds a few things appropriate - to protocol stacks. -*/</font> -class Protocol_Task : public ACE_Task<ACE_MT_SYNCH> -{ -public: - - typedef ACE_Task<ACE_MT_SYNCH> inherited; - - <font color=red>// A choice of concurrency strategies is offered by the</font> - <font color=red>// constructor. In most cases it makes sense to set this to</font> - <font color=red>// zero and let things proceed serially. You might have a</font> - <font color=red>// need, however, for some of your tasks to have their own thread.</font> - Protocol_Task( int _thr_count ); - - ~Protocol_Task(void); - - <font color=red>// open() is invoked when the task is inserted into the stream.</font> - virtual int open(void *arg); - - <font color=red>// close() is invoked when the stream is closed (flags will be</font> - <font color=red>// set to '1') and when the svc() method exits (flags will be</font> - <font color=red>// '0').</font> - virtual int close(u_long flags); - - <font color=red>// As data travels through the stream, the put() method of</font> - <font color=red>// each task is invoked to keep the data moving along.</font> - virtual int put(ACE_Message_Block *message, - ACE_Time_Value *timeout); - - <font color=red>// If you choose to activate the task then this method will be</font> - <font color=red>// doing all of the work.</font> - virtual int svc(void); - -protected: - - <font color=red>// Called by put() or svc() as necessary to process a block of</font> - <font color=red>// data.</font> - int process(ACE_Message_Block * message, ACE_Time_Value *timeout); - - <font color=red>// Just let us know if we're active or not.</font> - int is_active(void) - { - return this->thr_count() != 0; - } - - <font color=red>// Tasks on the writter (downstream) side of the stream</font> - <font color=red>// are called upon to send() data that will ultimately go to</font> - <font color=red>// the peer.</font> - virtual int send(ACE_Message_Block *message, - ACE_Time_Value *timeout); - - <font color=red>// Tasks on the reader (upstream) side will be receiving data</font> - <font color=red>// that came from the peer.</font> - virtual int recv(ACE_Message_Block * message, - ACE_Time_Value *timeout); - -private: - int desired_thr_count_; -}; - -<font color=blue>#endif</font> <font color=red>// PROTOCOL_TASK_H</font> -</PRE> -<P><HR WIDTH="100%"> -<CENTER>[<A HREF="../online-tutorials.html">Tutorial Index</A>] [<A HREF="page13.html">Continue This Tutorial</A>]</CENTER> |