Struct disk::qcow::QcowFileInner

struct QcowFileInner {
    raw_file: QcowRawFile,
    header: QcowHeader,
    l1_table: VecCache<u64>,
    l2_entries: u64,
    l2_cache: CacheMap<VecCache<u64>>,
    refcounts: RefCount,
    current_offset: u64,
    unref_clusters: Vec<u64>,
    avail_clusters: Vec<u64>,
    backing_file: Option<Box<dyn DiskFile>>,
}

Fields

raw_file: QcowRawFile

header: QcowHeader

l1_table: VecCache<u64>

l2_entries: u64

l2_cache: CacheMap<VecCache<u64>>

refcounts: RefCount

current_offset: u64

unref_clusters: Vec<u64>

avail_clusters: Vec<u64>

backing_file: Option<Box<dyn DiskFile>>

Implementations

impl QcowFileInner

fn find_avail_clusters(&mut self) -> Result<(), Error>

fn rebuild_refcounts( raw_file: &mut QcowRawFile, header: QcowHeader, ) -> Result<(), Error>

Rebuild the reference count tables.

fn limit_range_file(&self, address: u64, count: usize) -> usize

fn limit_range_cluster(&self, address: u64, count: usize) -> usize

fn virtual_size(&self) -> u64

fn l1_address_offset(&self, address: u64) -> u64

fn l1_table_index(&self, address: u64) -> u64

fn l2_table_index(&self, address: u64) -> u64

fn file_offset_read(&mut self, address: u64) -> Result<Option<u64>>

fn file_offset_write(&mut self, address: u64) -> Result<u64>

fn update_cluster_addr( &mut self, l1_index: usize, l2_index: usize, cluster_addr: u64, set_refcounts: &mut Vec<(u64, u16)>, ) -> Result<()>

fn get_new_cluster(&mut self, initial_data: Option<Vec<u8>>) -> Result<u64>

fn append_data_cluster(&mut self, initial_data: Option<Vec<u8>>) -> Result<u64>

fn deallocate_cluster(&mut self, address: u64) -> Result<()>

fn zero_bytes(&mut self, address: u64, length: usize) -> Result<()>

fn read_l2_cluster( raw_file: &mut QcowRawFile, cluster_addr: u64, ) -> Result<Vec<u64>>

fn set_cluster_refcount( &mut self, address: u64, refcount: u16, ) -> Result<Vec<u64>>

fn sync_caches(&mut self) -> Result<()>

fn read_cb<F>(&mut self, address: u64, count: usize, cb: F) -> Result<usize>

where F: FnMut(Option<&mut dyn DiskFile>, usize, u64, usize) -> Result<()>,

fn write_cb<F>(&mut self, address: u64, count: usize, cb: F) -> Result<usize>

where F: FnMut(&mut File, usize, u64, usize) -> Result<()>,

Trait Implementations

impl Debug for QcowFileInner

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

Formats the value using the given formatter.