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 >:

Collaboration diagram for ACE_TSS_Singleton< TYPE, ACE_LOCK >:

Public Member Functions
virtual void	cleanup (void *param=0)
Public Member Functions inherited from ACE_Cleanup
	ACE_Cleanup (void)
	No-op constructor. More...
virtual	~ACE_Cleanup (void)
	Destructor. More...

Static Public Member Functions
static TYPE *	instance (void)
	Global access point to the singleton. More...
static void	dump (void)
	Dump the state of the object. More...

Protected Member Functions
	ACE_TSS_Singleton (void)
	Default constructor. More...
	ACE_TSS_TYPE (TYPE) instance_
	Contained instance. More...
void	operator= (const ACE_TSS_Singleton< TYPE, ACE_LOCK > &)
	ACE_TSS_Singleton (const ACE_TSS_Singleton< TYPE, ACE_LOCK > &)

Static Protected Member Functions
static ACE_TSS_Singleton< TYPE, ACE_LOCK > *&	instance_i (void)
	Get pointer to the TSS Singleton instance. More...

Static Protected Attributes
static ACE_TSS_Singleton< TYPE, ACE_LOCK > *	singleton_ = 0
	Pointer to the Singleton (ACE_Cleanup) instance. More...

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.

Constructor & Destructor Documentation

template<class TYPE , class ACE_LOCK >

ACE_TSS_Singleton< TYPE, ACE_LOCK >::ACE_TSS_Singleton ( void  )

inlineprotected

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

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.

template<class TYPE , class ACE_LOCK >

TYPE * ACE_TSS_Singleton< TYPE, ACE_LOCK >::instance ( void  )

static

Global access point to the singleton.

template<class TYPE , class ACE_LOCK >

ACE_TSS_Singleton< TYPE, ACE_LOCK > *& ACE_TSS_Singleton< TYPE, ACE_LOCK >::instance_i ( void  )

staticprotected

Get pointer to the TSS Singleton instance.

template<class TYPE , class ACE_LOCK >

void ACE_TSS_Singleton< TYPE, ACE_LOCK >::operator= ( const ACE_TSS_Singleton< TYPE, ACE_LOCK > &  )

protected

Member Data Documentation

template<class TYPE , class ACE_LOCK >

ACE_TSS_Singleton< TYPE, ACE_LOCK > * ACE_TSS_Singleton< TYPE, ACE_LOCK >::singleton_ = 0

staticprotected

Pointer to the Singleton (ACE_Cleanup) instance.

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

• Singleton.h
• Singleton.cpp
• Singleton.inl