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construct/include/ircd/allocator/scope.h

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// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2023 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_ALLOCATOR_SCOPE_H
namespace ircd::allocator
{
struct scope;
}
struct ircd::allocator::scope
{
using alloc_closure = std::function<void *(const size_t &)>;
using realloc_closure = std::function<void *(void *const &ptr, const size_t &)>;
using free_closure = std::function<void (void *const &ptr)>;
static void hook_init() noexcept;
static void hook_fini() noexcept;
static scope *current;
scope *theirs;
alloc_closure user_alloc;
realloc_closure user_realloc;
free_closure user_free;
public:
scope(alloc_closure = {}, realloc_closure = {}, free_closure = {});
scope(const scope &) = delete;
scope(scope &&) = delete;
~scope() noexcept;
};