TAO  2.1.8
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TAO_Singleton_Manager Class Reference

Manager for TAO library services and singleton cleanup. More...

#include <TAO_Singleton_Manager.h>

Inheritance diagram for TAO_Singleton_Manager:
Inheritance graph
Collaboration diagram for TAO_Singleton_Manager:
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Public Member Functions

virtual int init (void)
 Explicitly initialize. More...
 
int init (int register_with_object_manager)
 
virtual int fini (void)
 Explicitly destroy. More...
 

Static Public Member Functions

static int starting_up (void)
 
static int shutting_down (void)
 
static sigset_t * default_mask (void)
 
static ACE_Thread_Hookthread_hook (void)
 Returns the current thread hook for the process. More...
 
static ACE_Thread_Hookthread_hook (ACE_Thread_Hook *new_thread_hook)
 Returns the existing thread hook and assign a new_thread_hook. More...
 
static TAO_Singleton_Managerinstance (void)
 Accessor to singleton instance. More...
 
static int at_exit (ACE_Cleanup *object, void *param=0, const char *name=0)
 
static int at_exit (void *object, ACE_CLEANUP_FUNC cleanup_hook, void *param, const char *name)
 

Protected Member Functions

 TAO_Singleton_Manager (void)
 Force allocation on the heap. More...
 
 ~TAO_Singleton_Manager (void)
 Force allocation on the heap. More...
 

Private Member Functions

int at_exit_i (void *object, ACE_CLEANUP_FUNC cleanup_hook, void *param, const char *name)
 
 TAO_Singleton_Manager (const TAO_Singleton_Manager &)
 Disallow copying by not implementing the following ... More...
 
TAO_Singleton_Manageroperator= (const TAO_Singleton_Manager &)
 Disallow copying by not implementing the following ... More...
 

Private Attributes

sigset_t * default_mask_
 Default signal set used, for example, in ACE_Sig_Guard. More...
 
ACE_Thread_Hookthread_hook_
 Thread hook that's used by this process. More...
 
ACE_OS_Exit_Info exit_info_
 For at_exit support. More...
 
int registered_with_object_manager_
 

Detailed Description

Manager for TAO library services and singleton cleanup.

The TAO_Singleton_Manager is basically simplified version of the ACE_Object_Manager. It is designed specifically to manage singletons created by TAO. For example, singleton instances created by TAO will be automatically registered with the singleton instance of this Singleton Manager.

This class is necessary to ensure that TAO-specific singletons are isolated to TAO itself, not ACE, for example. The idea is that destruction of the instance of the TAO_Singleton_Manager triggers destruction of all objects/services registered with it.

Constructor & Destructor Documentation

TAO_Singleton_Manager::TAO_Singleton_Manager ( void  )
protected

Force allocation on the heap.

TAO_Singleton_Manager::~TAO_Singleton_Manager ( void  )
protected

Force allocation on the heap.

TAO_Singleton_Manager::TAO_Singleton_Manager ( const TAO_Singleton_Manager )
private

Disallow copying by not implementing the following ...

Member Function Documentation

int TAO_Singleton_Manager::at_exit ( ACE_Cleanup object,
void *  param = 0,
const char *  name = 0 
)
static

Register an ACE_Cleanup object for cleanup at process termination. The object is deleted via the ace_cleanup_destroyer. If you need more flexiblity, see the other at_exit method below. For OS's that do not have processes, cleanup takes place at the end of main. Returns 0 on success. On failure, returns -1 and sets errno to: EAGAIN if shutting down, ENOMEM if insufficient virtual memory, or EEXIST if the object (or array) had already been registered.

int TAO_Singleton_Manager::at_exit ( void *  object,
ACE_CLEANUP_FUNC  cleanup_hook,
void *  param,
const char *  name 
)
static

Register an object (or array) for cleanup at process termination. cleanup_hook points to a (global, or static member) function that is called for the object or array when it to be destroyed. It may perform any necessary cleanup specific for that object or its class. param is passed as the second parameter to the cleanup_hook function; the first parameter is the object (or array) to be destroyed. cleanup_hook, for example, may delete the object (or array). For OS's that do not have processes, this function is the same as at_thread_exit. Returns 0 on success. On failure, returns -1 and sets errno to: EAGAIN if shutting down, ENOMEM if insufficient virtual memory, or EEXIST if the object (or array) had already been registered.

int TAO_Singleton_Manager::at_exit_i ( void *  object,
ACE_CLEANUP_FUNC  cleanup_hook,
void *  param,
const char *  name 
)
private

Register an object or array for deletion at program termination. See description of static version above for return values.

sigset_t * TAO_Singleton_Manager::default_mask ( void  )
static

Accesses a default signal set used, for example, in ACE_Sig_Guard methods.

int TAO_Singleton_Manager::fini ( void  )
virtual

Explicitly destroy.

Implements ACE_Object_Manager_Base.

int TAO_Singleton_Manager::init ( void  )
virtual

Explicitly initialize.

Implements ACE_Object_Manager_Base.

int TAO_Singleton_Manager::init ( int  register_with_object_manager)

Explicitly initialize the TAO_Singleton_Manager, in addition to explicitly registering (or not registering) with the ACE_Object_Manager.

TAO_Singleton_Manager * TAO_Singleton_Manager::instance ( void  )
static

Accessor to singleton instance.

TAO_Singleton_Manager& TAO_Singleton_Manager::operator= ( const TAO_Singleton_Manager )
private

Disallow copying by not implementing the following ...

int TAO_Singleton_Manager::shutting_down ( void  )
static

Returns 1 after the TAO_Singleton_Manager has been destroyed. See ACE_Object_Manager::shutting_down for more information.

int TAO_Singleton_Manager::starting_up ( void  )
static

Returns 1 before the TAO_Singleton_Manager has been constructed. See ACE_Object_Manager::starting_up for more information.

ACE_Thread_Hook * TAO_Singleton_Manager::thread_hook ( void  )
static

Returns the current thread hook for the process.

ACE_Thread_Hook * TAO_Singleton_Manager::thread_hook ( ACE_Thread_Hook new_thread_hook)
static

Returns the existing thread hook and assign a new_thread_hook.

Member Data Documentation

sigset_t* TAO_Singleton_Manager::default_mask_
private

Default signal set used, for example, in ACE_Sig_Guard.

ACE_OS_Exit_Info TAO_Singleton_Manager::exit_info_
private

For at_exit support.

int TAO_Singleton_Manager::registered_with_object_manager_
private

Indicates if TAO_Singleton_Manager is registered with the ACE_Object_Manager.

ACE_Thread_Hook* TAO_Singleton_Manager::thread_hook_
private

Thread hook that's used by this process.


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