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LibCore+AK: Move MappedFile from AK to LibCore

MappedFile is strictly a userspace thing, so it doesn't belong in AK
(which is supposed to be user/kernel agnostic.)
This commit is contained in:
Andreas Kling 2021-11-23 11:32:25 +01:00
parent c1c9da6c35
commit 58fb3ebf66
48 changed files with 101 additions and 103 deletions

View file

@ -0,0 +1,40 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/Noncopyable.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RefCounted.h>
#include <AK/Result.h>
namespace Core {
class MappedFile : public RefCounted<MappedFile> {
AK_MAKE_NONCOPYABLE(MappedFile);
AK_MAKE_NONMOVABLE(MappedFile);
public:
static ErrorOr<NonnullRefPtr<MappedFile>> map(String const& path);
static ErrorOr<NonnullRefPtr<MappedFile>> map_from_fd_and_close(int fd, String const& path);
~MappedFile();
void* data() { return m_data; }
const void* data() const { return m_data; }
size_t size() const { return m_size; }
ReadonlyBytes bytes() const { return { m_data, m_size }; }
private:
explicit MappedFile(void*, size_t);
void* m_data { nullptr };
size_t m_size { 0 };
};
}