AMReX_GpuElixir.H

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#ifndef AMREX_GPUELIXIR_H_
#define AMREX_GPUELIXIR_H_
#include <AMReX_Config.H>
 
#include <AMReX_Arena.H>
#include <AMReX_Vector.H>
#include <utility>
 
namespace amrex {
namespace Gpu {
 
class Elixir
{
public:
 
    Elixir () noexcept = default;
 
    Elixir (void* p, Arena* arena) noexcept : m_pa({std::make_pair(p,arena)}) {}
 
    Elixir (Elixir const&) = delete;
    Elixir& operator= (Elixir const&) = delete;
 
    Elixir (Elixir && rhs) noexcept
        : m_pa(std::move(rhs.m_pa))
    {
        rhs.m_pa.clear();
    }
 
    Elixir& operator= (Elixir && rhs) noexcept
    {
        clear();
        m_pa = std::move(rhs.m_pa);
        rhs.m_pa.clear();
        return *this;
    }
 
    void append (Elixir rhs) noexcept
    {
        m_pa.insert(m_pa.end(), rhs.m_pa.begin(), rhs.m_pa.end());
        rhs.m_pa.clear();
    }
 
    ~Elixir () { clear(); }
 
    void clear () noexcept;
 
private:
    Vector<std::pair<void*,Arena*> > m_pa;
};
 
}
 
using Gpu::Elixir;
}
 
#endif