Kernel/FileSystem/Mount.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

/*
 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <Kernel/FileSystem/Custody.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/Inode.h>
#include <Kernel/FileSystem/Mount.h>

namespace Kernel {

Mount::Mount(FileSystem& guest_fs, Custody* host_custody, int flags)
    : m_guest(guest_fs.root_inode())
    , m_guest_fs(guest_fs)
    , m_host_custody(host_custody)
    , m_flags(flags)
{
}

Mount::Mount(Inode& source, Custody& host_custody, int flags)
    : m_guest(source)
    , m_guest_fs(source.fs())
    , m_host_custody(host_custody)
    , m_flags(flags)
{
}

String Mount::absolute_path() const
{
    if (!m_host_custody)
        return "/";
    return m_host_custody->absolute_path();
}

Inode* Mount::host()
{
    if (!m_host_custody)
        return nullptr;
    return &m_host_custody->inode();
}

Inode const* Mount::host() const
{
    if (!m_host_custody)
        return nullptr;
    return &m_host_custody->inode();
}

}