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6a1c85aa61
Previously, PartitionTable was constructed using a Kernel::StorageDevice making it only usable in the kernel. This commit adds a new constructor that takes a Core::File instead, making it usable in userland as well. This also adds the m_block_size field which stores the block size of the underlying device obtained by calling StorageDevice::block_size() in the kernel or by using the STORAGE_DEVICE_GET_BLOCK_SIZE ioctl in userland. This avoids the need for an #ifdef every time block size is needed.
37 lines
762 B
C++
37 lines
762 B
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibPartition/PartitionTable.h>
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#ifndef KERNEL
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# include <sys/ioctl.h>
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#endif
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namespace Partition {
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#ifdef KERNEL
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PartitionTable::PartitionTable(Kernel::StorageDevice const& device)
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: m_device(device)
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, m_block_size(device.block_size())
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{
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}
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#else
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PartitionTable::PartitionTable(NonnullRefPtr<Core::File> device_file)
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: m_device_file(device_file)
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{
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VERIFY(ioctl(m_device_file->leak_fd(), STORAGE_DEVICE_GET_BLOCK_SIZE, &m_block_size) >= 0);
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}
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#endif
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Optional<DiskPartitionMetadata> PartitionTable::partition(unsigned index) const
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{
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if (index > partitions_count())
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return {};
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return m_partitions[index];
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}
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}
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