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// -*- C++ -*-
//=============================================================================
/**
* @file Static_Object_Lock.h
*
* $Id$
*
* @author David L. Levine <levine@cs.wustl.edu>
* @author Matthias Kerkhoff
* @author Per Andersson
*/
//=============================================================================
#ifndef ACE_STATIC_OBJECT_LOCK_H
#define ACE_STATIC_OBJECT_LOCK_H
#include /**/ "ace/pre.h"
#include "ace/ACE_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#if defined (ACE_HAS_THREADS)
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
class ACE_Recursive_Thread_Mutex;
/**
* @class ACE_Static_Object_Lock
*
* @brief Provide an interface to access a global lock.
*
* This class is used to serialize the creation of static
* singleton objects. It really isn't needed any more, because
* anyone can access ACE_STATIC_OBJECT_LOCK directly. But, it
* is retained for backward compatibility.
*/
class ACE_Export ACE_Static_Object_Lock
{
public:
/// Static lock access point.
static ACE_Recursive_Thread_Mutex *instance (void);
/// For use only by ACE_Object_Manager to clean up lock if it
/// what dynamically allocated.
static void cleanup_lock (void);
};
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_HAS_THREADS */
// hack to get around errors while compiling using split-cpp
#if defined (ACE_HAS_THREADS)
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
# if defined (ACE_IS_SPLITTING)
typedef ACE_Cleanup_Adapter<ACE_Recursive_Thread_Mutex> ACE_Static_Object_Lock_Type;
# if defined (__GNUC__)
// With g++, suppress the warning that this is unused.
static ACE_Static_Object_Lock_Type *ACE_Static_Object_Lock_lock __attribute__ ((unused)) = 0;
# else
static ACE_Static_Object_Lock_Type *ACE_Static_Object_Lock_lock = 0;
# endif /* __GNUC__ */
# endif /* ACE_IS_SPLITTING */
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_HAS_THREADS */
#include /**/ "ace/post.h"
#endif /* ACE_STATIC_OBJECT_LOCK_H */
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