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/*
* File: allocator_op.hpp
* Purpose: Allocate from a pool.
* Author: Amlal El Mahrouss (amlal@nekernel.org)
* Copyright 2025, Amlal El Mahrouss, Licensed under the Boost Software License. Licensed under the BSL 1.0 license
*/
#ifndef __OCL_CORE_ALLOC
#define __OCL_CORE_ALLOC
#include <ocl/detail/config.hpp>
#include <memory>
namespace ocl
{
/// @note these are guidelines on allocating a resource
template <typename type>
struct global_new_op final
{
using pointer_type = type*;
auto alloc() -> pointer_type
{
return new type;
}
template <size_t N>
auto array_alloc() -> pointer_type
{
return new type[N];
}
template <typename... var_type>
auto var_alloc(var_type&&... args) -> pointer_type
{
return new type{std::forward<var_type>(args)...};
}
};
template <typename type>
struct global_array_delete_op final
{
using pointer_type = type*;
auto operator()(pointer_type t) -> void
{
delete[] t;
}
};
template <typename ret_type, typename allocator_new, typename allocator_delete>
class allocator_op
{
public:
allocator_op() = default;
~allocator_op() = default;
allocator_op& operator=(const allocator_op&) = delete;
allocator_op(const allocator_op&) = delete;
template <typename... var_type>
auto construct_var(var_type... args)
{
return std::shared_ptr<ret_type>(allocator_new{}.template var_alloc<var_type...>(std::forward<var_type...>(args)...), allocator_delete{});
}
template <size_t N>
auto construct_array()
{
return std::shared_ptr<ret_type>(allocator_new{}.template array_alloc<N>(), allocator_delete{});
}
};
template <typename type>
using allocator = allocator_op<type, global_new_op<type>, global_array_delete_op<type>>;
} // namespace ocl
#endif // ifndef __OCL_CORE_ALLOC
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