compressed_block_device.h

Go to the documentation of this file.

/**
 * @file    compressed_block_device.h
 * @brief   This file implements a ChibiOS block device backed by a compressed (gzip) store.
 *
 * @date    Mar 4, 2021
 * @author  Matthew Kennedy, (c) 2021
 */
 
#pragma once
 
#include "hal.h"
#include "uzlib.h"
 
struct CompressedBlockDevice {
    const BaseBlockDeviceVMT* vmt;
    _base_block_device_data
    int32_t lastBlock;
    uzlib_uncomp d;
    uint8_t dictionary[32768];
    const uint8_t* source;
    size_t sourceSize;
};
 
void compressedBlockDeviceObjectInit(CompressedBlockDevice* cbd);
void compressedBlockDeviceStart(CompressedBlockDevice* cbd, const uint8_t* source, size_t sourceSize);