Enum AllocationStrategy 

pub enum AllocationStrategy {
    None,
    Prealloc,
    Falloc,
    Trunc,
    Mmap,
}

Variants

None

Prealloc

Falloc

Trunc

Mmap

Memory-mapped I/O: pre-allocate blocks via fallocate, then the writer uses MmapDiskWriter for direct memory access. The allocation step is identical to Falloc; the difference is in the writer construction (handled by DownloadCommand based on the file_allocation option).

Implementations

impl AllocationStrategy

pub fn from_str(s: &str) -> Self

Parse allocation strategy from string This is intentionally not implementing FromStr to avoid confusion with the standard trait

Trait Implementations

impl Clone for AllocationStrategy

fn clone(&self) -> AllocationStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AllocationStrategy

impl Debug for AllocationStrategy

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

Formats the value using the given formatter.

impl Default for AllocationStrategy

fn default() -> AllocationStrategy

Returns the “default value” for a type.

impl PartialEq for AllocationStrategy

fn eq(&self, other: &AllocationStrategy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for AllocationStrategy