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#include <kernel/filesystem/mount.hpp>
#include <kernel/filesystem/dentry.hpp>
#include <kernel/filesystem/filesystem.hpp>
#include <kapi/system.hpp>
#include <kstd/memory>
#include <kstd/string>
#include <cstddef>
#include <string_view>
namespace kernel::filesystem
{
mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
kstd::shared_ptr<filesystem> const & fs, kstd::shared_ptr<mount> const & parent_mount)
: m_mount_dentry(mount_dentry)
, m_root_dentry(root_dentry)
, m_filesystem(fs)
, m_parent_mount(parent_mount)
, m_ref_count(0)
{
if (!m_filesystem)
{
kapi::system::panic("[FILESYSTEM] mount initialized with null filesystem.");
}
}
auto mount::mount_dentry() const -> kstd::shared_ptr<dentry> const &
{
return m_mount_dentry;
}
auto mount::get_filesystem() const -> kstd::shared_ptr<filesystem> const &
{
return m_filesystem;
}
auto mount::root_dentry() const -> kstd::shared_ptr<dentry> const &
{
return m_root_dentry;
}
auto mount::mount_path() const -> kstd::string
{
if (m_mount_dentry)
{
return m_mount_dentry->absolute_path();
}
return "/";
}
auto mount::parent_mount() const -> kstd::shared_ptr<mount> const &
{
return m_parent_mount;
}
auto mount::increment_ref_count() -> void
{
m_ref_count += 1;
}
auto mount::decrement_ref_count() -> bool
{
if (m_ref_count == 0)
{
return false;
}
m_ref_count -= 1;
return true;
}
auto mount::is_ready_to_unmount() const -> bool
{
return m_ref_count == 0;
}
auto mount::ref_count() const -> size_t
{
return m_ref_count;
}
} // namespace kernel::filesystem
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