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#include "filesystem/vfs.hpp"
#include "kapi/system.hpp"
#include "devices/storage/storage_management.hpp"
#include "filesystem/ext2/ext2_filesystem.hpp"
#include "filesystem/mount.hpp"
#include <optional>
namespace filesystem
{
namespace
{
constinit auto static active_vfs = std::optional<vfs>{};
// TODO BA-FS26 @Felix better solution? while dynamic memory not available?
// TODO BA-FS26 remove when dynamic memory available;
constinit auto static root_fs = std::optional<ext2::ext2_filesystem>{};
} // namespace
auto vfs::init() -> void
{
if (active_vfs)
{
kapi::system::panic("[FILESYSTEM] vfs has already been initialized.");
}
active_vfs.emplace(vfs{});
auto storage_mgmt = devices::storage::storage_management::get();
if (auto boot_device = storage_mgmt.determine_boot_device())
{
root_fs.emplace(ext2::ext2_filesystem{});
if (root_fs->mount(boot_device) != 0)
{
kapi::system::panic("[FILESYSTEM] Failed to mount root filesystem.");
}
active_vfs->m_root_mount = mount{"/", &*root_fs};
// TODO BA-FS26 mount all the other devices to "/dev/ramxy"
}
else
{
// TODO BA-FS26 ?? what when no boot_device == no modules loaded??
}
}
auto vfs::get() -> vfs &
{
if (!active_vfs)
{
kapi::system::panic("[FILESYSTEM] vfs has not been initialized.");
}
return *active_vfs;
}
} // namespace filesystem
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