acadia/sys/victoriafalls/fs/ext2/ext2_block_reader.h
Drew Galbraith 21c1a001ea [victoriafalls] Move the block to lba translation to a small wrapper.
Abstract this away into a thin wrapper over the denali client such that
it can be called from other helper classes.
2023-07-05 23:19:25 -07:00

25 lines
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C++

#pragma once
#include <denali/denali_client.h>
#include <glacier/status/error_or.h>
#include <mammoth/memory_region.h>
#include "fs/ext2/ext2.h"
class Ext2BlockReader {
public:
static glcr::ErrorOr<Ext2BlockReader> Init(ScopedDenaliClient&& denali);
Superblock* GetSuperblock();
uint64_t SectorsPerBlock();
glcr::ErrorOr<MappedMemoryRegion> ReadBlock(uint64_t block_number);
glcr::ErrorOr<MappedMemoryRegion> ReadBlocks(uint64_t block_number,
uint64_t num_blocks);
private:
ScopedDenaliClient denali_;
MappedMemoryRegion super_block_region_;
Ext2BlockReader(ScopedDenaliClient&& denali, MappedMemoryRegion super_block);
};