ACE/ace/Refcountable_T.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file   Refcountable_T.h
   6  *
   7  * @author Doug Schmidt
   8  * @author Johnny Willemsen
   9  */
  10 //=============================================================================
  11 #ifndef ACE_REFCOUNTABLE_T_H
  12 #define ACE_REFCOUNTABLE_T_H
  13 #include /**/ "ace/pre.h"
  14
  15 #include /**/ "ace/ACE_export.h"
  16
  17 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  18 # pragma once
  19 #endif /* ACE_LACKS_PRAGMA_ONCE */
  20
  21 #include "ace/Atomic_Op.h"
  22 #include "ace/Synch_Traits.h"
  23 #include "ace/Null_Mutex.h"
  24
  25 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  26
  27 template <class ACE_LOCK>
  28 class ACE_Refcountable_T
  29 {
  30 public:
  31   /// Destructor.
  32   virtual ~ACE_Refcountable_T () = default;
  33
  34   /// Increment refcount
  35   long increment ();
  36
  37   /// Decrement refcount
  38   long decrement ();
  39
  40   /// Returns the current refcount.
  41   long refcount () const;
  42
  43 protected:
  44   /// Protected constructor.
  45   ACE_Refcountable_T (long refcount);
  46
  47   /// Current refcount.
  48   ACE_Atomic_Op <ACE_LOCK, long> refcount_;
  49 };
  50
  51 ACE_END_VERSIONED_NAMESPACE_DECL
  52
  53 #if defined (__ACE_INLINE__)
  54 #include "ace/Refcountable_T.inl"
  55 #endif /* __ACE_INLINE__ */
  56
  57 #include "ace/Refcountable_T.cpp"
  58
  59 #include /**/ "ace/post.h"
  60 #endif /*ACE_REFCOUNTABLE_T_H*/