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Diff for /pegasus/src/Pegasus/Common/Message.h between version 1.2 and 1.5.2.10

version 1.2, 2001/07/08 23:39:09 version 1.5.2.10, 2001/12/06 16:38:20
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 //%/////////////////////////////////////////////////////////////////////////////  //%///-*-c++-*-/////////////////////////////////////////////////////////////////
 // //
 // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM  // Copyright (c) 2000, 2001 BMC Software, Hewlett-Packard Company, IBM,
   // The Open Group, Tivoli Systems
 // //
 // Permission is hereby granted, free of charge, to any person obtaining a copy // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to // of this software and associated documentation files (the "Software"), to
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 // //
 // Author: Mike Brasher (mbrasher@bmc.com) // Author: Mike Brasher (mbrasher@bmc.com)
 // //
 // Modified By:  // Modified By: Nitin Upasani, Hewlett-Packard Company (Nitin_Upasani@hp.com)
   // Modified By: Carol Ann Krug Graves, Hewlett-Packard Company
   //              (carolann_graves@hp.com)
 // //
 //%///////////////////////////////////////////////////////////////////////////// //%/////////////////////////////////////////////////////////////////////////////
  
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 #define Pegasus_Message_h #define Pegasus_Message_h
  
 #include <iostream> #include <iostream>
   #include <cstring>
 #include <Pegasus/Common/Config.h> #include <Pegasus/Common/Config.h>
   #include <Pegasus/Common/Exception.h>
  
 PEGASUS_NAMESPACE_BEGIN PEGASUS_NAMESPACE_BEGIN
  
   class PEGASUS_EXPORT message_mask
   {
      public:
         static Uint32 type_legacy;
         static Uint32 type_CIMClass;
         static Uint32 type_CIMInstance;
         static Uint32 type_CIMIndication;
         static Uint32 type_CIMQualifier;
         static Uint32 type_CIMSubscription;
         static Uint32 type_socket;
         static Uint32 type_connection;
         static Uint32 type_http;
         static Uint32 type_cimom;
   
         static Uint32 type_request;
         static Uint32 type_resply;
         static Uint32 type_control;
   };
   
 class MessageQueue; class MessageQueue;
  
 /** The Message class and derived classes are used to pass messages between /** The Message class and derived classes are used to pass messages between
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     The Message class also provides previous and next pointers which are     The Message class also provides previous and next pointers which are
     used to place the messages on a queue by the MessageQueue class.     used to place the messages on a queue by the MessageQueue class.
 */ */
 class Message  class PEGASUS_COMMON_LINKAGE Message
 { {
 public: public:
  
     Message(Uint32 type, Uint32 key = getNextKey())      Message(Uint32 type, Uint32 key = getNextKey(), Uint32 mask = message_mask::type_legacy)
         : _type(type), _key(key), _next(0), _prev(0) { }          : _type(type), _key(key), _mask(mask), _next(0), _prev(0) { }
   
  
     virtual ~Message();     virtual ~Message();
  
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     static Uint32 getNextKey() { return ++_nextKey; }     static Uint32 getNextKey() { return ++_nextKey; }
  
     virtual void print(      virtual void print(PEGASUS_STD(ostream)& os) const;
         PEGASUS_STD(ostream)& os,  
         Boolean printHeader = true) const;  
  
 private: private:
     Uint32 _type;     Uint32 _type;
     Uint32 _key;     Uint32 _key;
         Uint32 _mask;
     Message* _next;     Message* _next;
     Message* _prev;     Message* _prev;
     MessageQueue* _owner;     MessageQueue* _owner;
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     friend class MessageQueue;     friend class MessageQueue;
 }; };
  
   
   // each component needs to support a set of these messgaes and pass that array
   // to the dispatcher so the dispatcher can route messages at the first level
   // i.e., client will not accept request messages.
   // every message should have a response
   
   // dispatcher supports full cim api set (as below)
   // repository needs to be a peer to the provider manager
   //
   
   // mkdir _dispatcher
   // mkdir _providermanager
   // mkdir _server (http incoming, front end)
   // mkdir _repositorymanager
   //       _subscriptionprocessor
   //       _indicationprocessor
   //       _configurationmanager
   //       _cimom (loads and links everyone, hooks up queues)
   
   // fundamental messages:
   
   // start, stop, pause, resume
   // handshaking: interrogate (as in windows service api)
   //              message class support
   //              message namespace support ???
   
   enum MessageType
   {
       DUMMY_MESSAGE,
   
       // CIM Message types:
   
       CIM_GET_CLASS_REQUEST_MESSAGE,
       CIM_GET_INSTANCE_REQUEST_MESSAGE,
       CIM_EXPORT_INDICATION_REQUEST_MESSAGE,
       CIM_DELETE_CLASS_REQUEST_MESSAGE,
       CIM_DELETE_INSTANCE_REQUEST_MESSAGE,
       CIM_CREATE_CLASS_REQUEST_MESSAGE,
       CIM_CREATE_INSTANCE_REQUEST_MESSAGE,
       CIM_MODIFY_CLASS_REQUEST_MESSAGE,
       CIM_MODIFY_INSTANCE_REQUEST_MESSAGE,
       CIM_ENUMERATE_CLASSES_REQUEST_MESSAGE,
       CIM_ENUMERATE_CLASS_NAMES_REQUEST_MESSAGE,
       CIM_ENUMERATE_INSTANCES_REQUEST_MESSAGE,
       CIM_ENUMERATE_INSTANCE_NAMES_REQUEST_MESSAGE,
       CIM_EXEC_QUERY_REQUEST_MESSAGE,
       CIM_ASSOCIATORS_REQUEST_MESSAGE,
       CIM_ASSOCIATOR_NAMES_REQUEST_MESSAGE,
       CIM_REFERENCES_REQUEST_MESSAGE,
       CIM_REFERENCE_NAMES_REQUEST_MESSAGE,
       CIM_GET_PROPERTY_REQUEST_MESSAGE,
       CIM_SET_PROPERTY_REQUEST_MESSAGE,
       CIM_GET_QUALIFIER_REQUEST_MESSAGE,
       CIM_SET_QUALIFIER_REQUEST_MESSAGE,
       CIM_DELETE_QUALIFIER_REQUEST_MESSAGE,
       CIM_ENUMERATE_QUALIFIERS_REQUEST_MESSAGE,
       CIM_INVOKE_METHOD_REQUEST_MESSAGE,
       CIM_ENABLE_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE,
       CIM_MODIFY_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE,
       CIM_DISABLE_INDICATION_SUBSCRIPTION_REQUEST_MESSAGE,
       CIM_GET_CLASS_RESPONSE_MESSAGE,
       CIM_GET_INSTANCE_RESPONSE_MESSAGE,
       CIM_EXPORT_INDICATION_RESPONSE_MESSAGE,
       CIM_DELETE_CLASS_RESPONSE_MESSAGE,
       CIM_DELETE_INSTANCE_RESPONSE_MESSAGE,
       CIM_CREATE_CLASS_RESPONSE_MESSAGE,
       CIM_CREATE_INSTANCE_RESPONSE_MESSAGE,
       CIM_MODIFY_CLASS_RESPONSE_MESSAGE,
       CIM_MODIFY_INSTANCE_RESPONSE_MESSAGE,
       CIM_ENUMERATE_CLASSES_RESPONSE_MESSAGE,
       CIM_ENUMERATE_CLASS_NAMES_RESPONSE_MESSAGE,
       CIM_ENUMERATE_INSTANCES_RESPONSE_MESSAGE,
       CIM_ENUMERATE_INSTANCE_NAMES_RESPONSE_MESSAGE,
       CIM_EXEC_QUERY_RESPONSE_MESSAGE,
       CIM_ASSOCIATORS_RESPONSE_MESSAGE,
       CIM_ASSOCIATOR_NAMES_RESPONSE_MESSAGE,
       CIM_REFERENCES_RESPONSE_MESSAGE,
       CIM_REFERENCE_NAMES_RESPONSE_MESSAGE,
       CIM_GET_PROPERTY_RESPONSE_MESSAGE,
       CIM_SET_PROPERTY_RESPONSE_MESSAGE,
       CIM_GET_QUALIFIER_RESPONSE_MESSAGE,
       CIM_SET_QUALIFIER_RESPONSE_MESSAGE,
       CIM_DELETE_QUALIFIER_RESPONSE_MESSAGE,
       CIM_ENUMERATE_QUALIFIERS_RESPONSE_MESSAGE,
       CIM_INVOKE_METHOD_RESPONSE_MESSAGE,
       CIM_ENABLE_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE,
       CIM_MODIFY_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE,
       CIM_DISABLE_INDICATION_SUBSCRIPTION_RESPONSE_MESSAGE,
   
       // Monitor-related messages:
   
       SOCKET_MESSAGE,
   
       // Connection-oriented messages:
   
       CLOSE_CONNECTION_MESSAGE,
   
       // HTTP messages:
   
       HTTP_MESSAGE,
   
       NUMBER_OF_MESSAGES
   };
   
   PEGASUS_COMMON_LINKAGE const char* MessageTypeToString(Uint32 messageType);
   
   /** This class implements a stack of queue-ids. Many messages must keep a
       stack of queue-ids of queues which they must be returned to. This provides
       a light efficient stack for this purpose.
   */
   class QueueIdStack
   {
   public:
   
       QueueIdStack() : _size(0)
       {
       }
   
       QueueIdStack(const QueueIdStack& x) : _size(x._size)
       {
           memcpy(_items, x._items, sizeof(_items));
       }
   
       PEGASUS_EXPLICIT QueueIdStack(Uint32 x) : _size(0)
       {
           push(x);
       }
   
       PEGASUS_EXPLICIT QueueIdStack(Uint32 x1, Uint32 x2) : _size(0)
       {
           push(x1);
           push(x2);
       }
   
       ~QueueIdStack()
       {
       }
   
       QueueIdStack& operator=(const QueueIdStack& x)
       {
           if (this != &x)
           {
               memcpy(_items, x._items, sizeof(_items));
               _size = x._size;
           }
           return *this;
       }
   
       Uint32 size() const
       {
           return _size;
       }
   
       Boolean isEmpty() const
       {
           return _size == 0;
       }
   
       void push(Uint32 x)
       {
           if (_size == MAX_SIZE)
               throw StackOverflow();
   
           _items[_size++] = x;
       }
   
       Uint32& top()
       {
           if (_size == 0)
               throw StackUnderflow();
   
           return _items[_size-1];
       }
   
       Uint32 top() const
       {
           return ((QueueIdStack*)this)->top();
       }
   
       void pop()
       {
           if (_size == 0)
               throw StackUnderflow();
   
           _size--;
       }
   
       /** Make a copy of this stack and then pop the top element. */
       QueueIdStack copyAndPop() const
       {
           return QueueIdStack(*this, 0);
       }
   
   private:
   
       // Copy the given stack but then pop the top element:
       QueueIdStack(const QueueIdStack& x, int) : _size(x._size)
       {
           memcpy(_items, x._items, sizeof(_items));
           pop();
       }
   
       enum { MAX_SIZE = 5 };
       Uint32 _items[MAX_SIZE];
       Uint32 _size;
   };
   
 PEGASUS_NAMESPACE_END PEGASUS_NAMESPACE_END
  
 #endif /* Pegasus_Message_h */ #endif /* Pegasus_Message_h */

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