/usr/include/ace/Bound_Ptr.inl is in libace-dev 6.2.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// $Id: Bound_Ptr.inl 96985 2013-04-11 15:50:32Z huangh $
// Bound_Ptr.i
#include "ace/Guard_T.h"
#if !defined (ACE_NEW_THROWS_EXCEPTIONS)
# include "ace/Log_Category.h"
#endif /* ACE_NEW_THROWS_EXCEPTIONS */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
template <class ACE_LOCK> inline ACE_Bound_Ptr_Counter<ACE_LOCK> *
ACE_Bound_Ptr_Counter<ACE_LOCK>::internal_create (long init_obj_ref_count)
{
ACE_Bound_Ptr_Counter<ACE_LOCK> *temp = 0;
ACE_NEW_RETURN (temp,
ACE_Bound_Ptr_Counter<ACE_LOCK> (init_obj_ref_count),
0);
return temp;
}
template <class ACE_LOCK> inline ACE_Bound_Ptr_Counter<ACE_LOCK> *
ACE_Bound_Ptr_Counter<ACE_LOCK>::create_strong (void)
{
// Set initial object reference count to 1.
ACE_Bound_Ptr_Counter<ACE_LOCK> *temp = internal_create (1);
#if defined (ACE_NEW_THROWS_EXCEPTIONS)
if (temp == 0)
ACE_throw_bad_alloc;
#else
ACE_ASSERT (temp != 0);
#endif /* ACE_NEW_THROWS_EXCEPTIONS */
return temp;
}
template <class ACE_LOCK> inline long
ACE_Bound_Ptr_Counter<ACE_LOCK>::attach_strong (ACE_Bound_Ptr_Counter<ACE_LOCK>* counter)
{
ACE_GUARD_RETURN (ACE_LOCK, guard, counter->lock_, -1);
// Can't attach a strong pointer to an object that has already been deleted.
if (counter->obj_ref_count_ == -1)
return -1;
long new_obj_ref_count = ++counter->obj_ref_count_;
++counter->self_ref_count_;
return new_obj_ref_count;
}
template <class ACE_LOCK> inline long
ACE_Bound_Ptr_Counter<ACE_LOCK>::detach_strong (ACE_Bound_Ptr_Counter<ACE_LOCK>* counter)
{
ACE_Bound_Ptr_Counter<ACE_LOCK> *counter_del = 0;
long new_obj_ref_count;
{
ACE_GUARD_RETURN (ACE_LOCK, guard, counter->lock_, -1);
if ((new_obj_ref_count = --counter->obj_ref_count_) == 0)
// Change the object reference count to -1 to indicate that the
// object has been deleted, as opposed to a weak pointer that
// simply hasn't had any strong pointers created from it yet.
counter->obj_ref_count_ = -1;
if (--counter->self_ref_count_ == 0)
// Since counter contains the lock held by the guard, the
// guard needs to be released before freeing the memory holding
// the lock. So save the pointer to free, then release, then
// free.
counter_del = counter;
} // Release the lock
delete counter_del;
return new_obj_ref_count;
}
template <class ACE_LOCK> inline ACE_Bound_Ptr_Counter<ACE_LOCK> *
ACE_Bound_Ptr_Counter<ACE_LOCK>::create_weak (void)
{
// Set initial object reference count to 0.
ACE_Bound_Ptr_Counter<ACE_LOCK> *temp = internal_create (0);
#if defined (ACE_NEW_THROWS_EXCEPTIONS)
if (temp == 0)
ACE_throw_bad_alloc;
#else
ACE_ASSERT (temp != 0);
#endif /* ACE_NEW_THROWS_EXCEPTIONS */
return temp;
}
template <class ACE_LOCK> inline void
ACE_Bound_Ptr_Counter<ACE_LOCK>::attach_weak (ACE_Bound_Ptr_Counter<ACE_LOCK>* counter)
{
ACE_GUARD (ACE_LOCK, guard, counter->lock_);
++counter->self_ref_count_;
}
template <class ACE_LOCK> inline void
ACE_Bound_Ptr_Counter<ACE_LOCK>::detach_weak (ACE_Bound_Ptr_Counter<ACE_LOCK>* counter)
{
ACE_Bound_Ptr_Counter<ACE_LOCK> *counter_del = 0;
{
ACE_GUARD (ACE_LOCK, guard, counter->lock_);
if (--counter->self_ref_count_ == 0)
// Since counter contains the lock held by the guard, the
// guard needs to be released before freeing the memory holding
// the lock. So save the pointer to free, then release, then
// free.
counter_del = counter;
} // Release the lock
delete counter_del;
}
template <class ACE_LOCK> inline bool
ACE_Bound_Ptr_Counter<ACE_LOCK>::object_was_deleted (ACE_Bound_Ptr_Counter<ACE_LOCK> *counter)
{
ACE_GUARD_RETURN (ACE_LOCK, guard, counter->lock_, 0);
return counter->obj_ref_count_ == -1;
}
template <class ACE_LOCK> inline
ACE_Bound_Ptr_Counter<ACE_LOCK>::ACE_Bound_Ptr_Counter (long init_obj_ref_count)
: obj_ref_count_ (init_obj_ref_count),
self_ref_count_ (1)
{
}
template <class ACE_LOCK> inline
ACE_Bound_Ptr_Counter<ACE_LOCK>::~ACE_Bound_Ptr_Counter (void)
{
}
template <class X, class ACE_LOCK> inline
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::ACE_Strong_Bound_Ptr (X *p)
: counter_ (COUNTER::create_strong ()),
ptr_ (p)
{
}
template <class X, class ACE_LOCK> inline
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::ACE_Strong_Bound_Ptr (auto_ptr<X> p)
: counter_ (COUNTER::create_strong ()),
ptr_ (p.release())
{
}
template <class X, class ACE_LOCK> inline
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::ACE_Strong_Bound_Ptr (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r)
: counter_ (r.counter_),
ptr_ (r.ptr_)
{
COUNTER::attach_strong (this->counter_);
}
template <class X, class ACE_LOCK> inline
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::ACE_Strong_Bound_Ptr (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r)
: counter_ (r.counter_),
ptr_ (r.ptr_)
{
// When creating a strong pointer from a weak one we can't assume that the
// underlying object still exists. Therefore we must check for a return value
// of -1, which indicates that the object has been destroyed.
if (COUNTER::attach_strong (this->counter_) == -1)
{
// Underlying object has already been deleted, so set this pointer to null.
this->counter_ = COUNTER::create_strong ();
this->ptr_ = 0;
}
}
template <class X, class ACE_LOCK> inline
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::~ACE_Strong_Bound_Ptr (void)
{
if (COUNTER::detach_strong (this->counter_) == 0)
delete this->ptr_;
}
template <class X, class ACE_LOCK> inline void
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator = (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &rhs)
{
// This will work if &r == this, by first increasing the ref count, but
// why go through all that?
if (&rhs == this)
return;
COUNTER *new_counter = rhs.counter_;
X_t *new_ptr = rhs.ptr_;
COUNTER::attach_strong (new_counter);
if (COUNTER::detach_strong (this->counter_) == 0)
delete this->ptr_;
this->counter_ = new_counter;
this->ptr_ = new_ptr;
}
template <class X, class ACE_LOCK> inline void
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator = (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &rhs)
{
// This will work if &r == this, by first increasing the ref count, but
// why go through all that?
if (&rhs == this)
return;
COUNTER *new_counter = rhs.counter_;
X_t *new_ptr = rhs.ptr_;
// When creating a strong pointer from a weak one we can't assume that the
// underlying object still exists. Therefore we must check for a return value
// of -1, which indicates that the object has been destroyed.
if (COUNTER::attach_strong (new_counter) == -1)
{
// Underlying object has already been deleted, so set this pointer to null.
new_counter = COUNTER::create_strong ();
new_ptr = 0;
}
if (COUNTER::detach_strong (this->counter_) == 0)
delete this->ptr_;
this->counter_ = new_counter;
this->ptr_ = new_ptr;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator== (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r) const
{
return this->ptr_ == r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator== (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r) const
{
// Use the weak pointer's operator== since it will check for null.
return r == *this;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator== (X *p) const
{
return this->ptr_ == p;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator!= (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r) const
{
return this->ptr_ != r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator!= (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r) const
{
// Use the weak pointer's operator!= since it will check for null.
return r != *this;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator!= (X *p) const
{
return this->ptr_ != p;
}
template <class X, class ACE_LOCK> inline X *
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator-> (void) const
{
return this->ptr_;
}
template<class X, class ACE_LOCK> inline X &
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::operator *() const
{
return *this->ptr_;
}
template <class X, class ACE_LOCK> inline X*
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::get (void) const
{
return this->ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::null (void) const
{
return this->ptr_ == 0;
}
template<class X, class ACE_LOCK> inline void
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::reset (X *p)
{
COUNTER *old_counter = this->counter_;
X_t *old_ptr = this->ptr_;
this->counter_ = COUNTER::create_strong ();
this->ptr_ = p;
if (COUNTER::detach_strong (old_counter) == 0)
delete old_ptr;
}
template<class X, class ACE_LOCK> inline void
ACE_Strong_Bound_Ptr<X, ACE_LOCK>::reset (auto_ptr<X> p)
{
COUNTER *old_counter = this->counter_;
X_t *old_ptr = this->ptr_;
this->counter_ = COUNTER::create_strong ();
this->ptr_ = p.release ();
if (COUNTER::detach_strong (old_counter) == 0)
delete old_ptr;
}
template <class X, class ACE_LOCK> inline
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::ACE_Weak_Bound_Ptr (X *p)
: counter_ (COUNTER::create_weak ()),
ptr_ (p)
{
}
template <class X, class ACE_LOCK> inline
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::ACE_Weak_Bound_Ptr (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r)
: counter_ (r.counter_),
ptr_ (r.ptr_)
{
COUNTER::attach_weak (this->counter_);
}
template <class X, class ACE_LOCK> inline
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::ACE_Weak_Bound_Ptr (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r)
: counter_ (r.counter_),
ptr_ (r.ptr_)
{
COUNTER::attach_weak (this->counter_);
}
template <class X, class ACE_LOCK> inline
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::~ACE_Weak_Bound_Ptr (void)
{
COUNTER::detach_weak (this->counter_);
}
template <class X, class ACE_LOCK> inline void
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator = (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &rhs)
{
// This will work if &rhs == this, by first increasing the ref count
COUNTER *new_counter = rhs.counter_;
COUNTER::attach_weak (new_counter);
COUNTER::detach_weak (this->counter_);
this->counter_ = new_counter;
this->ptr_ = rhs.ptr_;
}
template <class X, class ACE_LOCK> inline void
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator = (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &rhs)
{
// This will work if &rhs == this, by first increasing the ref count
COUNTER *new_counter = rhs.counter_;
COUNTER::attach_weak (new_counter);
COUNTER::detach_weak (this->counter_);
this->counter_ = new_counter;
this->ptr_ = rhs.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator== (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return r.ptr_ == 0;
return this->ptr_ == r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator== (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return r.ptr_ == 0;
return this->ptr_ == r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator== (X *p) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return p == 0;
return this->ptr_ == p;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator!= (const ACE_Weak_Bound_Ptr<X, ACE_LOCK> &r) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return r.ptr_ != 0;
return this->ptr_ != r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator!= (const ACE_Strong_Bound_Ptr<X, ACE_LOCK> &r) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return r.ptr_ != 0;
return this->ptr_ != r.ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator!= (X *p) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return p != 0;
return this->ptr_ != p;
}
template <class X, class ACE_LOCK> inline ACE_Strong_Bound_Ptr<X, ACE_LOCK>
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::operator-> (void) const
{
return ACE_Strong_Bound_Ptr<X, ACE_LOCK> (*this);
}
template <class X, class ACE_LOCK> inline ACE_Strong_Bound_Ptr<X, ACE_LOCK>
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::strong (void) const
{
return ACE_Strong_Bound_Ptr<X, ACE_LOCK> (*this);
}
template <class X, class ACE_LOCK> inline X*
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::unsafe_get (void) const
{
// We do not check if the object has been deleted, since this operation
// is defined to be unsafe!
return this->ptr_;
}
template <class X, class ACE_LOCK> inline bool
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::null (void) const
{
// A weak pointer must behave as though it is automatically set to null
// if the underlying object has been deleted.
if (COUNTER::object_was_deleted (this->counter_))
return true;
return this->ptr_ == 0;
}
template<class X, class ACE_LOCK> inline void
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::reset (X *p)
{
COUNTER *old_counter = this->counter_;
this->counter_ = COUNTER::create_weak ();
this->ptr_ = p;
COUNTER::detach_weak (old_counter);
}
template<class X, class ACE_LOCK> inline long
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::add_ref ()
{
return COUNTER::attach_strong (counter_);
}
template<class X, class ACE_LOCK> inline long
ACE_Weak_Bound_Ptr<X, ACE_LOCK>::remove_ref ()
{
long new_obj_ref_count = COUNTER::detach_strong (counter_);
if (new_obj_ref_count == 0)
{
delete this->ptr_;
this->ptr_ = 0;
}
return new_obj_ref_count;
}
ACE_END_VERSIONED_NAMESPACE_DECL
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