invocation_context.h

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2026 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
 
 
#ifndef dealii_sundials_invocation_context_h
#define dealii_sundials_invocation_context_h
 
#include <deal.II/base/config.h>
 
 
#ifdef DEAL_II_WITH_SUNDIALS
 
#  include <deal.II/base/exceptions.h>
 
#  if DEAL_II_SUNDIALS_VERSION_GTE(6, 0, 0)
#    include <sundials/sundials_context.h>
#    include <sundials/sundials_types.h>
#  endif
 
#  include <exception>
#  include <memory>
#  include <type_traits>
 
#endif // DEAL_II_WITH_SUNDIALS
 
 
DEAL_II_NAMESPACE_OPEN
 
#ifdef DEAL_II_WITH_SUNDIALS
namespace SUNDIALS
{
  namespace internal
  {
#  if DEAL_II_SUNDIALS_VERSION_GTE(6, 0, 0)
    class SharedSUNContext
    {
    public:
      SharedSUNContext() = default;
 
      explicit SharedSUNContext(SUNContext context)
        : context(context, [](std::remove_pointer_t<SUNContext> *c) {
          SUNContext ctx    = c;
          const int  status = SUNContext_Free(&ctx);
          (void)status;
          AssertNothrow(status == 0, ExcMessage("SUNContext_Free() failed."));
        })
      {}
 
      operator SUNContext() const
      {
        return context.get();
      }
 
    private:
      std::shared_ptr<std::remove_pointer_t<SUNContext>> context;
    };
#  endif
 
    struct InvocationContext
    {
      std::exception_ptr &pending_exception;
#  if DEAL_II_SUNDIALS_VERSION_GTE(6, 0, 0)
      SharedSUNContext arkode_ctx;
#  endif
    };
  } // namespace internal
} // namespace SUNDIALS
 
#endif // DEAL_II_WITH_SUNDIALS
 
DEAL_II_NAMESPACE_CLOSE
 
#endif