blob: 5a49e7a73b396a6cd036c36a6175aaafc4798d40 (
plain)
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
#include <kernel/filesystem/mount_table.hpp>
#include <kernel/filesystem/dentry.hpp>
#include <kernel/filesystem/mount.hpp>
#include <kstd/memory>
#include <kstd/vector>
#include <algorithm>
#include <ranges>
#include <string_view>
namespace kernel::filesystem
{
auto mount_table::has_child_mounts(kstd::shared_ptr<mount> const & parent_mount) const -> bool
{
return std::ranges::any_of(
m_mounts, [&parent_mount](auto const & mount) { return mount->get_parent_mount() == parent_mount; });
}
void mount_table::add_mount(kstd::shared_ptr<mount> const & mount)
{
m_mounts.push_back(mount);
if (auto mount_dentry = mount->get_mount_dentry())
{
mount_dentry->set_flag(dentry::dentry_flags::is_mount_point);
}
if (auto root_dentry = mount->get_root_dentry())
{
root_dentry->set_flag(dentry::dentry_flags::is_mount_root);
}
}
auto mount_table::remove_mount(std::string_view path) -> operation_result
{
// TODO BA-FS26 check wheter something is open in this mount
auto mount_range =
std::ranges::find_last_if(m_mounts, [&](auto const & mount) { return mount->get_mount_path() == path; });
auto mount_it = mount_range.begin();
if (mount_it == m_mounts.end())
{
return operation_result::mount_not_found;
}
auto const & mount = *mount_it;
if (has_child_mounts(mount))
{
return operation_result::has_child_mounts;
}
mount->get_mount_dentry()->unset_flag(dentry::dentry_flags::is_mount_point);
m_mounts.erase(mount_it);
return operation_result::removed;
}
auto mount_table::find_exact_mount(std::string_view path) const -> kstd::shared_ptr<mount>
{
auto mount_range =
std::ranges::find_last_if(m_mounts, [&](auto const & mount) { return mount->get_mount_path() == path; });
auto mount_it = mount_range.begin();
return (mount_it != m_mounts.end()) ? *mount_it : nullptr;
}
} // namespace kernel::filesystem
|
