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-rw-r--r--TAO/tao/Service_Context.h146
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diff --git a/TAO/tao/Service_Context.h b/TAO/tao/Service_Context.h
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-// This may look like C, but it's really -*- C++ -*-
-// -*- C++ -*-
-
-// ===================================================================
-/**
- * @file Service_Context.h
- *
- * $Id$
- *
- * @author Balachandran Natarajan <bala@cs.wustl.edu>
- *
- */
-// ===================================================================
-
-#ifndef TAO_SERVICE_CONTEXT_H
-#define TAO_SERVICE_CONTEXT_H
-
-#include /**/ "ace/pre.h"
-
-#include "tao/IOPC.h"
-
-#if !defined (ACE_LACKS_PRAGMA_ONCE)
-# pragma once
-#endif /* ACE_LACKS_PRAGMA_ONCE */
-
-/**
- * @class TAO_Service_Context
- *
- * @brief Helper class for managing the service context list
- * information.
- *
- * This class is used to manipulate and access the service context
- * list that is passed around with every GIOP request/reply. The
- * definition of the service context list is simply a sequence of the
- * following structures:
- * typedef unsigned long ServiceId;
- * struct ServiceContext
- * {
- * ServiceId context_id;
- * sequence <octet> context_data;
- * };
- * typedef sequence <ServiceContext> ServiceContextList;
- *
- * the real motivation behind this class is to consolidate all the
- * marshalling and unmarshalling information pertaining to service
- * context list
- *
- * @note Somewhere down the line we may want to use this class for
- * fast access to the info that we need from the Service Context
- * List.
- */
-class TAO_Export TAO_Service_Context
-{
-public:
- /// Constructor
- TAO_Service_Context (void);
-
-
- /// = Generic components
-
- /// Insert the component into the list, making a copy of the octet
- /// sequence.
- void set_context (const IOP::ServiceContext &context);
-
- /// Insert the component into the list, making a copy of the octet
- /// sequence. Search the list before insertion so that the
- /// insertion does not cause a duplicate context to be in the list.
- /// If the replace flag is true, update the specified context.
- /// Return 0 if the component was present and the replace flag
- /// was not set to true.
- int set_context (const IOP::ServiceContext &context,
- CORBA::Boolean replace);
-
- /// Insert the component into the list, but efficiently stealing the
- /// contents of the octet sequence.
- void set_context (IOP::ServiceContext &context);
-
- /// Get a copy of the context identified by <context.context_id>, return
- /// 0 if the component is not present.
- int get_context (IOP::ServiceContext &context) const;
-
- /// Get a reference to a context identified by id, return
- /// 0 if the component is not present.
- int get_context (IOP::ServiceId id, const IOP::ServiceContext **context) const;
-
- /// Get a copy of the Service Context corresponding to the given
- /// ServiceId. The caller owns the returned Service Context.
- /**
- * @return 0 If a Service Context with the given ServiceId doesn't
- * exist.
- */
- int get_context (IOP::ServiceId id, IOP::ServiceContext_out context);
-
- /// Set the context from the CDR stream and add that to the service
- /// Context list
- void set_context (IOP::ServiceId id, TAO_OutputCDR &cdr);
-
- /// Set the context from the CDR stream and return the context back
- /// to the caller. *Does not* modify the underlying service context
- /// list.
- void set_context (IOP::ServiceContext &context, TAO_OutputCDR &cdr);
-
- /// Is the <id> available in the underlying service context list? If
- /// so return 1, else return 0
- int is_service_id (IOP::ServiceId id);
-
- /// = Marshaling and demarshaling the list
- int encode (TAO_OutputCDR& cdr) const;
- int decode (TAO_InputCDR& cdr);
-
- /// Return the underlying service context list
- IOP::ServiceContextList &service_info (void);
- const IOP::ServiceContextList &service_info (void) const;
-
- // @@ Note: The above method is only for backward comptiblity. We
- // need to get this removed once RT folks have their service
- // addition info done through this interface
-
-private:
- /// Helper methods to implement set_context()
- void set_context_i (const IOP::ServiceContext &context);
- void set_context_i (IOP::ServiceContext &context);
- void add_context_i (const IOP::ServiceContext &context);
- void add_context_i (IOP::ServiceContext &context);
- void set_context_i (IOP::ServiceId id, TAO_OutputCDR &cdr);
- void set_context_i (IOP::ServiceContext &context, TAO_OutputCDR &cdr);
-
- /// Helper methods to implement get_context()
- int get_context_i (IOP::ServiceContext &context) const;
-
- // Prevent copying
- TAO_Service_Context (const TAO_Service_Context &);
- TAO_Service_Context &operator= (const TAO_Service_Context &);
-
-private:
- /// The ServiceContextList info.
- IOP::ServiceContextList service_context_;
-};
-
-#if defined (__ACE_INLINE__)
-# include "tao/Service_Context.inl"
-#endif /* ! __ACE_INLINE__ */
-
-#include /**/ "ace/post.h"
-
-#endif /* TAO_SERVICE_CONTEXT_H */