45 lines
1.1 KiB
Text
45 lines
1.1 KiB
Text
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file weakReferenceList.I
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* @author drose
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* @date 2004-09-27
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*/
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/**
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* Increases the number of weak references.
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*
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* @since 1.10.0
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*/
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INLINE void WeakReferenceList::
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ref() const {
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AtomicAdjust::inc(_count);
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}
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/**
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* Decreases the number of weak references. Returns true if, after this,
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* there are still any weak or strong references remaining, or false if this
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* structure should be deleted right away.
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*
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* @since 1.10.0
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*/
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INLINE bool WeakReferenceList::
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unref() const {
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return AtomicAdjust::dec(_count);
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}
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/**
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* Returns true if the object represented has been deleted, ie. there are only
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* weak references left pointing to the object.
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*
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* @since 1.10.0
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*/
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INLINE bool WeakReferenceList::
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was_deleted() const {
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return AtomicAdjust::get(_count) < _alive_offset;
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}
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