rtxCppContext.h Source File

00001 /*
00002  * Copyright (C) 2003-2004 by Objective Systems, Inc.
00003  *
00004  * This software is furnished under a license and may be used and copied
00005  * only in accordance with the terms of such license and with the
00006  * inclusion of the above copyright notice. This software or any other
00007  * copies thereof may not be provided or otherwise made available to any
00008  * other person. No title to and ownership of the software is hereby
00009  * transferred.
00010  *
00011  * The information in this software is subject to change without notice
00012  * and should not be construed as a commitment by Objective Systems, Inc.
00013  *
00014  * PROPRIETARY NOTICE
00015  *
00016  * This software is an unpublished work subject to a confidentiality agreement
00017  * and is protected by copyright and trade secret law.  Unauthorized copying,
00018  * redistribution or other use of this work is prohibited.
00019  *
00020  * The above notice of copyright on this source code product does not indicate
00021  * any actual or intended publication of such source code.
00022  *
00023  *****************************************************************************/
00028 #ifndef _RTXCPPCONTEXT_H_
00029 #define _RTXCPPCONTEXT_H_
00030 
00031 #include "rtxsrc/rtxCommon.h"
00032 
00038 class EXTERNRTX OSContext {
00039  private:
00040    OSContext (OSCTXT*);
00041  protected:
00046    OSCTXT mCtxt;
00047 
00051    OSUINT32 mCount;
00052 
00053  public:
00058    OSContext ();
00059 
00063    ~OSContext ();
00064 
00070    inline OSCTXT* getPtr () { return &mCtxt; }
00071 
00075    OSUINT32 getRefCount();
00076 
00080    void _ref();
00081 
00085    void _unref();
00086 
00087 };
00088 
00095 class EXTERNRTX OSCtxtPtr {
00096  protected:
00101    OSContext* mPointer;
00102 
00103  public:
00110    OSCtxtPtr (OSContext* rf = 0) : mPointer(rf) { 
00111       if (mPointer != 0) mPointer->_ref(); 
00112    }
00113 
00120    OSCtxtPtr (const OSCtxtPtr& o) : mPointer(o.mPointer) {
00121       if (mPointer != 0) mPointer->_ref();
00122    }
00123 
00129    ~OSCtxtPtr() { if (mPointer != 0) mPointer->_unref(); }
00130 
00139    OSCtxtPtr& operator= (const OSCtxtPtr& rf) {
00140       if (mPointer != 0) mPointer->_unref(); 
00141       mPointer = rf.mPointer;
00142       if (mPointer != 0) mPointer->_ref();
00143       return *this;
00144    }
00145 
00150    OSCtxtPtr& operator= (OSContext* rf) {
00151       if (mPointer != 0) mPointer->_unref(); 
00152       mPointer = rf;
00153       if (mPointer != 0) mPointer->_ref();
00154       return *this;
00155    }
00156 
00160    operator OSContext* () { return mPointer; }
00161    operator const OSContext* () const { return mPointer; }
00162 
00166    OSContext* operator -> () { return mPointer; }
00167    const OSContext* operator -> () const { return mPointer; }
00168 
00172    OSBOOL operator == (const OSContext* o) const { 
00173       return (mPointer == o); 
00174    }
00175 
00179    inline OSBOOL isNull() const { return (mPointer == 0); }
00180 
00185    inline OSCTXT* getCtxtPtr() { return mPointer->getPtr(); }
00186 
00187 };
00188 
00189 #endif