Teuchos Package Browser (Single Doxygen Collection) Version of the Day
Teuchos_RCPBoostSharedPtrConversions.hpp
Go to the documentation of this file.
00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                    Teuchos: Common Tools Package
00005 //                 Copyright (2004) Sandia Corporation
00006 //
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 //
00010 // Redistribution and use in source and binary forms, with or without
00011 // modification, are permitted provided that the following conditions are
00012 // met:
00013 //
00014 // 1. Redistributions of source code must retain the above copyright
00015 // notice, this list of conditions and the following disclaimer.
00016 //
00017 // 2. Redistributions in binary form must reproduce the above copyright
00018 // notice, this list of conditions and the following disclaimer in the
00019 // documentation and/or other materials provided with the distribution.
00020 //
00021 // 3. Neither the name of the Corporation nor the names of the
00022 // contributors may be used to endorse or promote products derived from
00023 // this software without specific prior written permission.
00024 //
00025 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00026 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00028 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00029 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00030 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00031 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00032 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00033 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00034 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00035 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00036 //
00037 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
00038 //
00039 // ***********************************************************************
00040 // @HEADER
00041 
00042 #ifndef TEUCHOS_RCP_SHAREDPTR_CONVERSIONS_HPP
00043 #define TEUCHOS_RCP_SHAREDPTR_CONVERSIONS_HPP
00044 
00045 #include "Teuchos_RCPBoostSharedPtrConversionsDecl.hpp"
00046 #include "Teuchos_RCP.hpp"
00047 
00048 
00049 template<class T>
00050 Teuchos::RCP<T>
00051 Teuchos::rcp( const boost::shared_ptr<T> &sptr )
00052 {
00053   if (sptr.get()) {
00054     // First, see if the RCP is in the shared_ptr deleter object
00055     const RCPDeleter<T>
00056       *rcpd = boost::get_deleter<RCPDeleter<T> >(sptr);
00057     if (rcpd) {
00058       return rcpd->ptr();
00059     }
00060 #ifdef TEUCHOS_DEBUG
00061     // Second, see if the an RCP node pointing to this type already exists
00062     // from being wrapped already from a prior call to this function where the
00063     // add_new_RCPNode(...) function could have been called already!.
00064     RCPNode* existingRCPNode = RCPNodeTracer::getExistingRCPNode(sptr.get());
00065     if (existingRCPNode) {
00066       return RCP<T>(sptr.get(), RCPNodeHandle(existingRCPNode, RCP_STRONG, false));
00067     }
00068 #endif
00069     // Lastly, we just create a new RCP and RCPNode ...
00070     return rcpWithDealloc(sptr.get(), DeallocBoostSharedPtr<T>(sptr), true);
00071   }
00072   return null;
00073 }
00074 
00075 
00076 template<class T>
00077 boost::shared_ptr<T>
00078 Teuchos::shared_pointer( const RCP<T> &rcp )
00079 {
00080   if (nonnull(rcp)) {
00081     Ptr<const DeallocBoostSharedPtr<T> >
00082       dbsp = get_optional_dealloc<DeallocBoostSharedPtr<T> >(rcp);
00083     if (nonnull(dbsp))
00084       return dbsp->ptr();
00085     return boost::shared_ptr<T>(rcp.get(), RCPDeleter<T>(rcp));
00086   }
00087   return boost::shared_ptr<T>();
00088 }
00089 
00090 
00091 #endif  // TEUCHOS_RCP_SHAREDPTR_CONVERSIONS_HPP
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines