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ACE_TSS_Singleton< TYPE, ACE_LOCK > Class Template Reference

This class uses the Adapter pattern to turn ordinary classes into Thread-specific Singletons optimized with the Double-Checked Locking optimization pattern. More...

#include <Singleton.h>

Inheritance diagram for ACE_TSS_Singleton< TYPE, ACE_LOCK >:

[legend]Collaboration diagram for ACE_TSS_Singleton< TYPE, ACE_LOCK >:

[legend]List of all members.

Public Methods
virtual void	cleanup (void *param=0)
Static Public Methods
TYPE *	instance (void)
	Global access point to the singleton.
void	dump (void)
	Dump the state of the object.
Protected Methods
	ACE_TSS_Singleton (void)
	Default constructor.
	ACE_TSS_TYPE (TYPE) instance_
	Contained instance.
void	operator= (const ACE_TSS_Singleton< TYPE, ACE_LOCK > &)
	ACE_TSS_Singleton (const ACE_TSS_Singleton< TYPE, ACE_LOCK > &)
Static Protected Methods
ACE_TSS_Singleton< TYPE, ACE_LOCK > *&	instance_i (void)
	Get pointer to the TSS Singleton instance.
Static Protected Attributes
ACE_TSS_Singleton< TYPE, ACE_LOCK > *	singleton_ = 0
	Pointer to the Singleton (ACE_Cleanup) instance.

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Detailed Description

template<class TYPE, class ACE_LOCK>
class ACE_TSS_Singleton< TYPE, ACE_LOCK >

This class uses the Adapter pattern to turn ordinary classes into Thread-specific Singletons optimized with the Double-Checked Locking optimization pattern.

This implementation is another variation on the GoF Singleton pattern. In this case, a single <ACE_TSS_Singleton<TYPE, LOCK> > instance is allocated here, not a <TYPE> instance. Each call to the <instance> static method returns a Singleton whose pointer resides in thread-specific storage. As with ACE_Singleton, we use the ACE_Object_Manager so that the Singleton can be cleaned up when the process exits. For this scheme to work, a (static) cleanup() function must be provided. ACE_Singleton provides one so that TYPE doesn't need to.

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Constructor & Destructor Documentation

template<class TYPE, class ACE_LOCK> ACE_INLINE ACE_TSS_Singleton< TYPE, ACE_LOCK >::ACE_TSS_Singleton (  void    )  [protected]

Default constructor.

template<class TYPE, class ACE_LOCK> ACE_TSS_Singleton< TYPE, ACE_LOCK >::ACE_TSS_Singleton (  const ACE_TSS_Singleton< TYPE, ACE_LOCK > &    )  [protected]

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Member Function Documentation

template<class TYPE, class ACE_LOCK> ACE_TSS_Singleton< TYPE, ACE_LOCK >::ACE_TSS_TYPE (  TYPE    )  [protected]

Contained instance.

template<class TYPE, class ACE_LOCK> void ACE_TSS_Singleton< TYPE, ACE_LOCK >::cleanup (  void *    param = 0 )  [virtual]

Cleanup method, used by <ace_cleanup_destroyer> to destroy the singleton. Reimplemented from ACE_Cleanup.

template<class TYPE, class ACE_LOCK> void ACE_TSS_Singleton< TYPE, ACE_LOCK >::dump (  void    )  [static]

Dump the state of the object. Reimplemented in ACE_Unmanaged_TSS_Singleton< TYPE, ACE_LOCK >.

template<class TYPE, class ACE_LOCK> TYPE * ACE_TSS_Singleton< TYPE, ACE_LOCK >::instance (  void    )  [static]

Global access point to the singleton. Reimplemented in ACE_Unmanaged_TSS_Singleton< TYPE, ACE_LOCK >.

template<class TYPE, class ACE_LOCK> ACE_TSS_Singleton< TYPE, ACE_LOCK > *& ACE_TSS_Singleton< TYPE, ACE_LOCK >::instance_i (  void    )  [static, protected]

Get pointer to the TSS Singleton instance. Reimplemented in ACE_Unmanaged_TSS_Singleton< TYPE, ACE_LOCK >.

template<class TYPE, class ACE_LOCK> void ACE_TSS_Singleton< TYPE, ACE_LOCK >::operator= (  const ACE_TSS_Singleton< TYPE, ACE_LOCK > &    )  [protected]

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Member Data Documentation

template<class TYPE, class ACE_LOCK> ACE_TSS_Singleton< TYPE, ACE_LOCK > * ACE_TSS_Singleton< TYPE, ACE_LOCK >::singleton_ = 0 [static, protected]

Pointer to the Singleton (ACE_Cleanup) instance. Reimplemented in ACE_Unmanaged_TSS_Singleton< TYPE, ACE_LOCK >.

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The documentation for this class was generated from the following files:

• Singleton.h
• Singleton.cpp
• Singleton.i

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