Struct mmap_vec::MmapVecBuilder

pub struct MmapVecBuilder<T, SB: SegmentBuilder = DefaultSegmentBuilder> { /* private fields */ }

Helps to create vec with custom parameters.

Example usage:

let seg_builder = DefaultSegmentBuilder::with_path("/tmp/rust-mmap");
seg_builder.create_dir_all().expect("Fail to create mmap dir");

let vec = MmapVecBuilder::<usize>::new()
    .capacity(500)
    .segment_builder(seg_builder.clone())
    .try_build()
    .expect("Fail to create mmap vec");

Implementations

impl<T, SB: SegmentBuilder> MmapVecBuilder<T, SB>

pub fn new() -> Self

Create new struct.

pub fn segment_builder(self, segment_builder: SB) -> Self

Update segment builder.

pub fn capacity(self, capacity: usize) -> Self

Update capacity.

pub fn try_build(self) -> Result<MmapVec<T, SB>>

Try building a new vec with given parameter.

This function may failed if segment creation failed.

Trait Implementations

impl<T: Debug, SB: Debug + SegmentBuilder> Debug for MmapVecBuilder<T, SB>

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

Formats the value using the given formatter.

impl<T, SB: SegmentBuilder> Default for MmapVecBuilder<T, SB>

fn default() -> Self

Returns the “default value” for a type.