Struct ext4_blockdev_iface

#[repr(C)]
pub struct ext4_blockdev_iface {

    pub open: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>,
    pub bread: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev, buf: *mut c_void, blk_id: u64, blk_cnt: u32) -> c_int>,
    pub bwrite: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev, buf: *const c_void, blk_id: u64, blk_cnt: u32) -> c_int>,
    pub close: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>,
    pub lock: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>,
    pub unlock: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>,
    pub ph_bsize: u32,
    pub ph_bcnt: u64,
    pub ph_bbuf: *mut u8,
    pub ph_refctr: u32,
    pub bread_ctr: u32,
    pub bwrite_ctr: u32,
    pub p_user: *mut c_void,
}

Fields

open: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>

@brief Open device function @param bdev block device.

bread: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev, buf: *mut c_void, blk_id: u64, blk_cnt: u32) -> c_int>

@brief Block read function. @param bdev block device @param buf output buffer @param blk_id block id @param blk_cnt block count

bwrite: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev, buf: *const c_void, blk_id: u64, blk_cnt: u32) -> c_int>

@brief Block write function. @param buf input buffer @param blk_id block id @param blk_cnt block count

close: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>

@brief Close device function. @param bdev block device.

lock: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>

@brief Lock block device. Required in multi partition mode operations. Not mandatory field. @param bdev block device.

unlock: Option<unsafe extern "C" fn(bdev: *mut ext4_blockdev) -> c_int>

@brief Unlock block device. Required in multi partition mode operations. Not mandatory field. @param bdev block device.

ph_bsize: u32

@brief Block size (bytes): physical

ph_bcnt: u64

@brief Block count: physical

ph_bbuf: *mut u8

@brief Block size buffer: physical

ph_refctr: u32

@brief Reference counter to block device interface

bread_ctr: u32

@brief Physical read counter

bwrite_ctr: u32

@brief Physical write counter

p_user: *mut c_void

@brief User data pointer

Trait Implementations

impl Clone for ext4_blockdev_iface

fn clone(&self) -> ext4_blockdev_iface

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ext4_blockdev_iface

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for ext4_blockdev_iface