Kernel+LibPartition: Move PartitionTable into LibPartition

Userland/Libraries/LibPartition/PartitionTable.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2020-2022, Liav A. <liavalb@hotmail.co.il>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <Kernel/Storage/StorageDevice.h>
+#include <LibPartition/DiskPartitionMetadata.h>
+
+namespace Partition {
+
+class PartitionTable {
+public:
+    Optional<DiskPartitionMetadata> partition(unsigned index);
+    size_t partitions_count() const { return m_partitions.size(); }
+    virtual ~PartitionTable() = default;
+    virtual bool is_valid() const = 0;
+
+    Vector<DiskPartitionMetadata> partitions() const { return m_partitions; }
+
+protected:
+    explicit PartitionTable(Kernel::StorageDevice const&);
+
+    NonnullRefPtr<Kernel::StorageDevice> m_device;
+    Vector<DiskPartitionMetadata> m_partitions;
+};
+
+}