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59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
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/*
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Copyright 2015 Dr. Blatt - HPC-Simulation-Software & Services
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Copyright 2015 Statoil AS
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPM_ADDITIONALOBJECTDELETER_HEADER_INCLUDED
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#define OPM_ADDITIONALOBJECTDELETER_HEADER_INCLUDED
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namespace Opm
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{
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//! \brief A custom deleter that will delete an additional object, too.
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//!
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//! In dune-istl most parallel preconditioners hold a reference to
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//! a sequential preconditioner.
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//! In CPRPreconditioner and NewtonIterationBlackoilInterleaved we use unique_ptr
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//! for the memory management.
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//! Ergo we need to construct the sequential preconditioner with new and
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//! make sure that it gets deleted together with the enclosing parallel
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//! preconditioner. Therefore this deleter stores a pointer to it and deletes
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//! it during destruction.
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//! \tparam The type of the additional object to be deleted.
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template<class T>
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class AdditionalObjectDeleter
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{
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public:
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//! \brief empty constructor.
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AdditionalObjectDeleter()
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: additional_object_()
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{}
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//! \brief Constructor taking the object that needs to deleted.
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AdditionalObjectDeleter(T& additional_object)
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: additional_object_(&additional_object){}
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//! \brief Delete an object and the additional one.
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template<class T1>
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void operator()(T1* pt)
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{
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delete pt;
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delete additional_object_;
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}
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private:
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T* additional_object_;
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};
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}
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#endif
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