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diff --git a/docs/tutorials/011/page02.html b/docs/tutorials/011/page02.html deleted file mode 100644 index 3423236c2ac..00000000000 --- a/docs/tutorials/011/page02.html +++ /dev/null @@ -1,111 +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 011</TITLE> -</HEAD> -<BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#000FFF" VLINK="#FF0F0F"> - -<CENTER><B><FONT SIZE=+2>ACE Tutorial 011</FONT></B></CENTER> - -<CENTER><B><FONT SIZE=+2>Passing non-trivial data through an ACE_Message_Queue</FONT></B></CENTER> - - -<HR WIDTH="100%"> -<P> - -We'll look first at <A HREF="message_queue.cpp">main()</A>. A large part of this is -the same as before, so I've only commented the changes. -<P> - -<HR WIDTH="100%"> -<P> -<PRE> -#include "task.h" -#include "block.h" -#include "data.h" - -int run_test (int iterations, int threads) -{ - Task task; - - if (task.open (threads) == -1) - { - ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "open"), -1); - } - - ACE_OS::sleep (ACE_Time_Value (1)); - - int i; - for (i = 0; i < iterations; ++i) - { - /* - Construct a Data object that we'll put into the Queue. - */ - Data data (i); - - /* - Create a block large enough for our Data object as well - as a text message. - */ - Block *message = new Block (sizeof (data) + 128); - - /* - As before, put a text message into the block. - */ - ACE_OS::sprintf (message->wr_ptr (), "This is message %d.", i); - message->wr_ptr (strlen (message->rd_ptr ())); - - *(message->wr_ptr()) = 0; // Null-terminate the string we just wrote - message->wr_ptr(1); // Move beyond the NULL - - /* - To copy arbitrary data into a message block, we use the copy() method. - Since it wants a 'const char*', we have to cast our Data pointer. - */ - message->copy ((const char *) &data, sizeof (data)); - message->wr_ptr (sizeof (data)); - - if (task.putq (message) == -1) - { - break; - } - } - - Block *message = new Block (); - message->msg_type (ACE_Message_Block::MB_HANGUP); - task.putq (message); - - task.wait (); - - return (0); -} - -int main (int argc, char *argv[]) -{ - int iterations = argc > 1 ? atoi (argv[1]) : 4; - int threads = argc > 2 ? atoi (argv[2]) : 2; - - (void) run_test (iterations, threads); - - ACE_DEBUG ((LM_DEBUG, "(%P|%t) Application exiting\n")); - - exit (0); -} -</PRE> - -<HR WIDTH="100%"> -<P> -The new trick here is the use of copy() to copy our abstract data object -into the message block memory. Notice that it's OK to let the Data object -go out of scope at that point since we've got a separate copy. If you've -got something with a non-trivial ctor/dtor then this won't work. We'll address -that in the next tutorial. -<P> -<HR WIDTH="100%"> - -<CENTER>[<A HREF="..">Tutorial Index</A>] [<A HREF="page03.html">Continue -This Tutorial</A>]</CENTER> - -</BODY> -</HTML> |