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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/ByteBuffer.h>
#include <AK/DistinctNumeric.h>
#include <AK/String.h>
#include <AK/Types.h>
namespace Kernel {
class FS;
struct InodeMetadata;
TYPEDEF_DISTINCT_ORDERED_ID(unsigned, InodeIndex);
class InodeIdentifier {
public:
InodeIdentifier() = default;
InodeIdentifier(u32 fsid, InodeIndex inode)
: m_fsid(fsid)
, m_index(inode)
{
}
bool is_valid() const { return m_fsid != 0 && m_index != 0; }
u32 fsid() const { return m_fsid; }
InodeIndex index() const { return m_index; }
FS* fs();
const FS* fs() const;
bool operator==(const InodeIdentifier& other) const
{
return m_fsid == other.m_fsid && m_index == other.m_index;
}
bool operator!=(const InodeIdentifier& other) const
{
return m_fsid != other.m_fsid || m_index != other.m_index;
}
String to_string() const { return String::formatted("{}:{}", m_fsid, m_index); }
private:
u32 m_fsid { 0 };
InodeIndex m_index { 0 };
};
}
template<>
struct AK::Formatter<Kernel::InodeIdentifier> : AK::Formatter<FormatString> {
void format(FormatBuilder& builder, Kernel::InodeIdentifier value)
{
return AK::Formatter<FormatString>::format(builder, "{}:{}", value.fsid(), value.index());
}
};
template<>
struct AK::Formatter<Kernel::InodeIndex> : AK::Formatter<FormatString> {
void format(FormatBuilder& builder, Kernel::InodeIndex value)
{
return AK::Formatter<FormatString>::format(builder, "{}", value.value());
}
};
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