OpenDDS::DCPS::WeakObject Class Reference

#include <RcObject.h>

Inheritance diagram for OpenDDS::DCPS::WeakObject:

Collaboration diagram for OpenDDS::DCPS::WeakObject:

Public Member Functions
	WeakObject (RcObject *ptr)
void	_add_ref ()
void	_remove_ref ()
RcObject *	lock ()
bool	check_expire (Atomic< long > &count)

Private Attributes
ACE_SYNCH_MUTEX	mx_
RcObject *	ptr_
long	ref_count_

Detailed Description

Definition at line 26 of file RcObject.h.

Constructor & Destructor Documentation

WeakObject()

OpenDDS::DCPS::WeakObject::WeakObject ( RcObject *  ptr )

inline

Definition at line 30 of file RcObject.h.

      : ptr_(ptr)
      , ref_count_(1)
    {
    }

Member Function Documentation

_add_ref()

void OpenDDS::DCPS::WeakObject::_add_ref ( void  )

inline

Definition at line 36 of file RcObject.h.

Referenced by OpenDDS::DCPS::RcObject::_get_weak_object().

    {
      ACE_Guard<ACE_SYNCH_MUTEX> guard(mx_);
      ++ref_count_;
    }

_remove_ref()

void OpenDDS::DCPS::WeakObject::_remove_ref ( void  )

inline

Definition at line 42 of file RcObject.h.

References ACE_Guard< ACE_LOCK >::release().

    {
      ACE_Guard<ACE_SYNCH_MUTEX> guard(mx_);
      const long new_count = --ref_count_;
      if (new_count == 0) {
        guard.release();
        delete this;
      }
    }

check_expire()

bool OpenDDS::DCPS::WeakObject::check_expire ( Atomic< long > &  count )

inline

Definition at line 115 of file RcObject.h.

  {
    ACE_Guard<ACE_SYNCH_MUTEX> guard(mx_);
    const long new_count = --count;
    if (new_count == 0 && ptr_) {
      ptr_ = 0;
      return true;
    }
    return false;
  }

lock()

RcObject * OpenDDS::DCPS::WeakObject::lock ( void  )

inline

Definition at line 106 of file RcObject.h.

  {
    ACE_Guard<ACE_SYNCH_MUTEX> guard(mx_);
    if (ptr_) {
      ptr_->_add_ref();
    }
    return ptr_;
  }

Member Data Documentation

mx_

ACE_SYNCH_MUTEX OpenDDS::DCPS::WeakObject::mx_

mutableprivate

Definition at line 56 of file RcObject.h.

ptr_

RcObject* OpenDDS::DCPS::WeakObject::ptr_

private

Definition at line 57 of file RcObject.h.

ref_count_

long OpenDDS::DCPS::WeakObject::ref_count_

private

Definition at line 58 of file RcObject.h.

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

• RcObject.h