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OpenSceneGraph/doc/doc++/osg/Referenced.html
Robert Osfield ed10594139 Updated docs
2004-08-06 06:53:36 +00:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<TITLE>class SG_EXPORT osg::Referenced</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.6">
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<H2>class SG_EXPORT <A HREF="#DOC.DOCU">osg::Referenced</A></H2></H2><BLOCKQUOTE>Base class from providing referencing counted objects</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=785>
<param name=classes value="CReferenced,MReferenced.html,CTest,MTest.html,CExtensions,MExtensions.8.html,CSubloadCallback,MSubloadCallback.5.html,CSubloadCallback,MSubloadCallback.4.html,CExtensions,MExtensions.7.html,CSubloadCallback,MSubloadCallback.3.html,CExtensions,MExtensions.6.html,CSubloadCallback,MSubloadCallback.2.html,CSubloadCallback,MSubloadCallback.html,CTextureObjectManager,MTextureObjectManager.html,CTextureObject,MTextureObject.html,CExtensions,MExtensions.5.html,CState,MState.html,CObject,MObject.html,CDatabaseRequestHandler,MDatabaseRequestHandler.html,CNodeVisitor,MNodeVisitor.html,CExtensions,MExtensions.4.html,CLineSegment,MLineSegment.html,CImpostorSpriteManager,MImpostorSpriteManager.html,CFrameStamp,MFrameStamp.html,CExtensions,MExtensions.3.html,CExtensions,MExtensions.2.html,CDisplaySettings,MDisplaySettings.html,CCullingSet,MCullingSet.html,CExtensions,MExtensions.html">
<param name=before value="M,M|_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,MR_,Mr_">
<param name=after value="M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M,M">
<param name=indent value="0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.196.1">Referenced</A></B>()
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.196.2">Referenced</A></B>(const <!1><A HREF="Referenced.html#DOC.2.196.2">Referenced</A>&amp;)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline <!1><A HREF="Referenced.html">Referenced</A>&amp; <B><A HREF="#DOC.2.196.3">operator = </A></B>(const <!1><A HREF="Referenced.html">Referenced</A>&amp;)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static void <B><A HREF="#DOC.2.196.4">setDeleteHandler</A></B>(<!1><A HREF="DeleteHandler.html">DeleteHandler</A>* handler)
<DD><I>Set a DeleteHandler to which deletion of all referenced counted objects will be delegated to</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static <!1><A HREF="DeleteHandler.html">DeleteHandler</A>* <B><A HREF="#DOC.2.196.5">getDeleteHandler</A></B>()
<DD><I>Get a DeleteHandler</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.196.6">ref</A></B>() const
<DD><I>increment the reference count by one, indicating that this object has another pointer which is referencing it</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.196.7">unref_nodelete</A></B>() const
<DD><I>decrement the reference count by one, indicating that a pointer to this object is referencing it.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline int <B><A HREF="#DOC.2.196.8">referenceCount</A></B>() const
<DD><I>return the number pointers currently referencing this object.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.196.12">unref</A></B>() const
<DD><I>decrement the reference count by one, indicating that a pointer to this object is referencing it.</I>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>mutable OpenThreads::Mutex <B><A HREF="#DOC.2.196.10">_refMutex</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>mutable int <B><A HREF="#DOC.2.196.11">_refCount</A></B>
</DL></P>
<P><DL>
<DT><H3>Protected Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <B><A HREF="#DOC.2.196.9">~Referenced</A></B>()
</DL></P>
</DL>
<A NAME="DOC.DOCU"></A>
<HR>
<H2>Documentation</H2>
<BLOCKQUOTE>Base class from providing referencing counted objects</BLOCKQUOTE>
<DL>
<A NAME="Referenced"></A>
<A NAME="DOC.2.196.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> Referenced()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="Referenced"></A>
<A NAME="DOC.2.196.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> Referenced(const <!1><A HREF="Referenced.html#DOC.2.196.2">Referenced</A>&amp;)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="operator = "></A>
<A NAME="DOC.2.196.3"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline <!1><A HREF="Referenced.html">Referenced</A>&amp; operator = (const <!1><A HREF="Referenced.html">Referenced</A>&amp;)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="setDeleteHandler"></A>
<A NAME="DOC.2.196.4"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static void setDeleteHandler(<!1><A HREF="DeleteHandler.html">DeleteHandler</A>* handler)</B></TT>
<DD>Set a DeleteHandler to which deletion of all referenced counted objects
will be delegated to
<DL><DT><DD></DL><P>
<A NAME="getDeleteHandler"></A>
<A NAME="DOC.2.196.5"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static <!1><A HREF="DeleteHandler.html">DeleteHandler</A>* getDeleteHandler()</B></TT>
<DD>Get a DeleteHandler
<DL><DT><DD></DL><P>
<A NAME="ref"></A>
<A NAME="DOC.2.196.6"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void ref() const </B></TT>
<DD>increment the reference count by one, indicating that
this object has another pointer which is referencing it
<DL><DT><DD></DL><P>
<A NAME="unref_nodelete"></A>
<A NAME="DOC.2.196.7"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void unref_nodelete() const </B></TT>
<DD>decrement the reference count by one, indicating that
a pointer to this object is referencing it. However, do
not delete it, even if ref count goes to 0. Warning, unref_nodelete()
should only be called if the user knows exactly who will
be resonsible for, one should prefer unref() over unref_nodelete()
as the later can lead to memory leaks.
<DL><DT><DD></DL><P>
<A NAME="referenceCount"></A>
<A NAME="DOC.2.196.8"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline int referenceCount() const </B></TT>
<DD>return the number pointers currently referencing this object.
<DL><DT><DD></DL><P>
<A NAME="~Referenced"></A>
<A NAME="DOC.2.196.9"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual ~Referenced()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_refMutex"></A>
<A NAME="DOC.2.196.10"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>mutable OpenThreads::Mutex _refMutex</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_refCount"></A>
<A NAME="DOC.2.196.11"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>mutable int _refCount</B></TT>
<DL><DT><DD></DL><P>
<A NAME="unref"></A>
<A NAME="DOC.2.196.12"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void unref() const </B></TT>
<DD>decrement the reference count by one, indicating that
a pointer to this object is referencing it. If the
reference count goes to zero, it is assumed that this object
is no longer referenced and is automatically deleted.
<DL><DT><DD></DL><P></DL>
<HR>
<DL><DT><B>Direct child classes:
</B><DD><A HREF="Test.html">Test</A><BR>
<A HREF="Extensions.8.html">Extensions</A><BR>
<A HREF="SubloadCallback.5.html">SubloadCallback</A><BR>
<A HREF="SubloadCallback.4.html">SubloadCallback</A><BR>
<A HREF="Extensions.7.html">Extensions</A><BR>
<A HREF="SubloadCallback.3.html">SubloadCallback</A><BR>
<A HREF="Extensions.6.html">Extensions</A><BR>
<A HREF="SubloadCallback.2.html">SubloadCallback</A><BR>
<A HREF="SubloadCallback.html">SubloadCallback</A><BR>
<A HREF="TextureObjectManager.html">TextureObjectManager</A><BR>
<A HREF="TextureObject.html">TextureObject</A><BR>
<A HREF="Extensions.5.html">Extensions</A><BR>
<A HREF="State.html">State</A><BR>
<A HREF="Object.html">Object</A><BR>
<A HREF="DatabaseRequestHandler.html">DatabaseRequestHandler</A><BR>
<A HREF="NodeVisitor.html">NodeVisitor</A><BR>
<A HREF="Extensions.4.html">Extensions</A><BR>
<A HREF="LineSegment.html">LineSegment</A><BR>
<A HREF="ImpostorSpriteManager.html">ImpostorSpriteManager</A><BR>
<A HREF="FrameStamp.html">FrameStamp</A><BR>
<A HREF="Extensions.3.html">Extensions</A><BR>
<A HREF="Extensions.2.html">Extensions</A><BR>
<A HREF="DisplaySettings.html">DisplaySettings</A><BR>
<A HREF="CullingSet.html">CullingSet</A><BR>
<A HREF="Extensions.html">Extensions</A><BR>
</DL>
<DL><DT><DT><B>Friends:</B><DD> class <!1><A HREF="DeleteHandler.html">DeleteHandler</A><BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR>
<BR>
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