async_callback.h

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
//
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//==============================================================================
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// Author: Mike Day ([e-mail])
//
// Modified By: David Dillard, Symantec Corp. ([e-mail])
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_async_callback_h
#define Pegasus_async_callback_h

#include <Pegasus/Common/Config.h>
#include <sys/types.h>
#if !defined(PEGASUS_OS_TYPE_WINDOWS)
#include <unistd.h>
#endif
#include <Pegasus/Common/PegasusAssert.h>
#include <iostream>
#include <stdio.h>
#include <string.h>

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/InternalException.h>
#include <Pegasus/Common/MessageQueue.h>
#include <Pegasus/Common/Thread.h>
#include <Pegasus/Common/Array.h>
#include <Pegasus/Common/AsyncOpNode.h>
#include <Pegasus/Common/CimomMessage.h>
#include <Pegasus/Common/Cimom.h>
#include <Pegasus/Common/MessageQueueService.h>

PEGASUS_NAMESPACE_BEGIN


class test_async_queue;

class async_start : public AsyncOperationStart
{
   public:
      typedef AsyncOperationStart Base;

      async_start(AsyncOpNode *op,
		  Uint32 start_q,
		  Uint32 completion_q,
		  Message *op_data);

      virtual ~async_start(void) { }


   private:
      friend class test_async_queue;
};


class async_complete: public AsyncOperationResult
{   public:
      typedef AsyncOperationResult Base;

      async_complete(const async_start & start_op,
		     Uint32 result,
		     Message *result_data);

      virtual ~async_complete(void) {    delete _result_data; }

      Message *get_result_data(void);

   private:
      Message *_result_data;
      friend class test_async_queue;
};


class test_async_queue : public MessageQueueService
{
   public:
      typedef MessageQueueService Base;

      enum ROLE
      {
	 CLIENT,
	 SERVER
      };

      test_async_queue(ROLE role);
      virtual ~test_async_queue(void) { }

      // pure virtuals that will go away eventually
      void handleEnqueue(void)
      {
	 Message *msg = dequeue();
	 if(msg)
	    handleEnqueue(msg);
      }

      void handleEnqueue(Message *msg)
      {
	 delete msg;
      }

      // static callback function
      static void async_handleEnqueue(AsyncOpNode *op, MessageQueue *, void *);
      static void async_handleSafeEnqueue(Message *, void *, void *);

      static AtomicInt msg_count;
      AtomicInt _die_now;
   protected:
      virtual Boolean messageOK(const Message *);
      virtual void _handle_async_request(AsyncRequest *req);
      virtual void _handle_async_callback(AsyncOpNode *operation);


   private:
      test_async_queue(void);
      void _handle_stop(CimServiceStop *stop);

      ROLE _role;
};



PEGASUS_NAMESPACE_END

#endif // Pegasus_async_callback_h