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All block devices should have a block size, after all. This defaults to PAGE_SIZE if no size is specified.
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
#include <Kernel/Devices/DiskPartition.h>
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// #define OFFD_DEBUG
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NonnullRefPtr<DiskPartition> DiskPartition::create(DiskDevice& device, unsigned block_offset)
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{
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return adopt(*new DiskPartition(device, block_offset));
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}
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DiskPartition::DiskPartition(DiskDevice& device, unsigned block_offset)
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: DiskDevice(100, 0, device.block_size())
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, m_device(device)
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, m_block_offset(block_offset)
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{
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}
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DiskPartition::~DiskPartition()
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{
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}
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bool DiskPartition::read_block(unsigned index, u8* out) const
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{
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#ifdef OFFD_DEBUG
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kprintf("DiskPartition::read_block %u (really: %u)\n", index, m_block_offset + index);
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#endif
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return m_device->read_block(m_block_offset + index, out);
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}
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bool DiskPartition::write_block(unsigned index, const u8* data)
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{
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#ifdef OFFD_DEBUG
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kprintf("DiskPartition::write_block %u (really: %u)\n", index, m_block_offset + index);
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#endif
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return m_device->write_block(m_block_offset + index, data);
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}
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bool DiskPartition::read_blocks(unsigned index, u16 count, u8* out)
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{
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#ifdef OFFD_DEBUG
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kprintf("DiskPartition::read_blocks %u (really: %u) count=%u\n", index, m_block_offset + index, count);
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#endif
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return m_device->read_blocks(m_block_offset + index, count, out);
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}
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bool DiskPartition::write_blocks(unsigned index, u16 count, const u8* data)
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{
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#ifdef OFFD_DEBUG
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kprintf("DiskPartition::write_blocks %u (really: %u) count=%u\n", index, m_block_offset + index, count);
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#endif
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return m_device->write_blocks(m_block_offset + index, count, data);
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}
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const char* DiskPartition::class_name() const
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{
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return "DiskPartition";
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}
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