Struct Qcow2Header

pub struct Qcow2Header { /* private fields */ }

Implementations

impl Qcow2Header

pub const QCOW2_MAGIC: u32 = 1_363_560_955u32

pub const MAX_CLUSTER_SIZE: u32 = 2_097_152u32

pub const MAX_L1_SIZE: u32 = 33_554_432u32

pub const MAX_REFCOUNT_TABLE_SIZE: u32 = 8_388_608u32

pub fn from_buf(header_buf: &[u8]) -> Qcow2Result<Self>

pub fn calculate_meta_params( size: u64, cluster_bits: usize, refcount_order: u8, block_size: usize, ) -> ((u64, u32), (u64, u32), (u64, u32))

pub fn format_qcow2( buf: &mut [u8], size: u64, cluster_bits: usize, refcount_order: u8, block_size: usize, ) -> Qcow2Result<()>

Format in-ram qcow2 image, for test purpose

pub fn serialize_to_buf(&mut self) -> Qcow2Result<Vec<u8>>

pub fn version(&self) -> u32

pub fn crypt_method(&self) -> u32

pub fn compression_type(&self) -> u8

pub fn header_length(&self) -> u32

pub fn size(&self) -> u64

pub fn cluster_bits(&self) -> u32

pub fn refcount_order(&self) -> u32

pub fn l1_table_offset(&self) -> u64

pub fn l1_table_entries(&self) -> usize

pub fn set_l1_table(&mut self, offset: u64, entries: usize) -> Qcow2Result<()>

pub fn nb_snapshots(&self) -> u32

pub fn snapshots_offset(&self) -> u64

pub fn reftable_offset(&self) -> u64

pub fn reftable_clusters(&self) -> usize

pub fn set_reftable(&mut self, offset: u64, clusters: usize) -> Qcow2Result<()>

pub fn backing_filename(&self) -> Option<&String>

pub fn backing_format(&self) -> Option<&String>

pub fn feature_name( &self, feat_type: Qcow2FeatureType, bit: u32, ) -> Option<&String>

Trait Implementations

impl Debug for Qcow2Header

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

Formats the value using the given formatter.