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-
-// $Id$
-
-// EndTask.h
-//
-// Tutorial regarding a way to use ACE_Stream.
-//
-// written by bob mcwhirter (bob@netwrench.com)
-//
-//
-
-#ifndef ENDTASK_H
-#define ENDTASK_H
-
-#include "Task.h"
-
-// When you setup a Stream and push your modules on,
-// there are two additional modules that go unseen
-// by the user.
-//
-// The Stream pushes on a Stream_Head in front of
-// your first module, and a Stream_Tail behind your
-// last module.
-//
-// If your put() a message to the Stream Tail, it
-// assumes you did so in error. This simple EndTask
-// class allows you to push a message to it and just
-// have it safely Go Away.
-//
-// All this Task does is release the Message_Block
-// and return 0. It's a suitable black-hole.
-
-
-class EndTask : public Task
-{
-
-public:
-
- typedef Task inherited;
-
- EndTask(const char *nameOfTask) :
- inherited(nameOfTask, 0) {
-
- // when we get open()'d, it with 0 threads
- // since there is actually no processing to do.
-
- cerr << __LINE__ << " " << __FILE__ << endl;
- };
-
- virtual int open(void *)
- {
- cerr << __LINE__ << " " << __FILE__ << endl;
- return 0;
- }
-
- virtual int open(void)
- {
- cerr << __LINE__ << " " << __FILE__ << endl;
- return 0;
- }
-
- virtual ~EndTask(void) {
- };
-
- virtual int put(ACE_Message_Block *message,
- ACE_Time_Value *timeout) {
-
- cerr << __LINE__ << " " << __FILE__ << endl;
- ACE_UNUSED_ARG(timeout);
-
- // we don't have anything to do, so
- // release() the message.
- ACE_DEBUG ((LM_DEBUG, "(%P|%t) %s EndTask::put() -- releasing Message_Block\n", this->nameOfTask()));
- message->release();
- return 0;
- };
-
-};
-
-#endif // ENDTASK_H