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// -*- C++ -*-
// ===================================================================
/**
* @file ORBInitializer_Registry.h
*
* $Id$
*
* @author Ossama Othman <ossama@uci.edu>
*/
// ===================================================================
#ifndef TAO_ORB_INITIALIZER_REGISTRY_H
#define TAO_ORB_INITIALIZER_REGISTRY_H
#include /**/ "ace/pre.h"
#include "ace/Array_Base.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "CORBA_methods.h"
#include "Objref_VarOut_T.h"
#include "Environment.h"
#include "ace/Thread_Mutex.h"
namespace PortableInterceptor
{
class ORBInitializer;
typedef ORBInitializer *ORBInitializer_ptr;
typedef
TAO_Objref_Var_T<
ORBInitializer
>
ORBInitializer_var;
class ORBInitInfo;
typedef ORBInitInfo *ORBInitInfo_ptr;
/// Register an ORBInitializer with the global ORBInitializer
/// table.
TAO_Export void register_orb_initializer (
ORBInitializer_ptr init
ACE_ENV_ARG_DECL_WITH_DEFAULTS
);
}
namespace TAO
{
/**
* @class ORBInitializer_Registry
*
* @brief Global list that contains all portable interceptor ORB
* initializers.
*
* @note This class should be instantiated via its instance()
* method. Normally this would be enforced by making the
* constructor protected but that forces a friend declaration
* containing a template type (TAO_Singleton) with a static
* member to be introduced. In turn, this potentially
* introduces problems in MS Windows DLL environments due to
* the occurance of multiple singleton instances. There
* should only be one!
*/
class ORBInitializer_Registry
{
friend void PortableInterceptor::register_orb_initializer (
PortableInterceptor::ORBInitializer_ptr init
ACE_ENV_ARG_DECL);
friend CORBA::ORB_ptr CORBA::ORB_init (int &,
char *argv[],
const char *,
CORBA::Environment &);
public:
/// Only allow this class to be instantiated as a singleton
/// instance, so declare the constructor as protected.
/**
* @note See the note in the class description for an explanation of
* why this constructor is not protected.
*/
ORBInitializer_Registry (void);
protected:
/// Register an ORBInitializer with the underlying ORBInitializer
/// array.
void register_orb_initializer (PortableInterceptor::ORBInitializer_ptr init
ACE_ENV_ARG_DECL);
/// Begin initialization of all registered ORBInitializers before
/// the ORB itself is initialized.
void pre_init (PortableInterceptor::ORBInitInfo_ptr info
ACE_ENV_ARG_DECL);
/// Complete initialization of all registered ORBInitializers after
/// the ORB has been initialized.
void post_init (PortableInterceptor::ORBInitInfo_ptr info
ACE_ENV_ARG_DECL);
/// Return a unique singleton instance.
static ORBInitializer_Registry * instance (void);
private:
// Prevent copying
ORBInitializer_Registry (const ORBInitializer_Registry &);
void operator= (const ORBInitializer_Registry &);
private:
TAO_SYNCH_MUTEX lock_;
/// Dynamic array containing registered ORBInitializers.
ACE_Array_Base<PortableInterceptor::ORBInitializer_var> initializers_;
};
}
#include /**/ "ace/post.h"
#endif /* TAO_ORB_INITIALIZER_REGISTRY_H */
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