Struct mtbl::SorterOptions

pub struct SorterOptions {
    pub temp_dir: Option<PathBuf>,
    pub max_memory: Option<usize>,
}

Options used to create a Sorter.

Fields

temp_dir: Option<PathBuf>

The temporary directory to be used for intermediate files. Default is "/var/tmp".

max_memory: Option<usize>

The amount of RAM to use for storing intermediate files, in bytes. Default is 1 GiB.

Methods

impl SorterOptions

fn new() -> SorterOptions

Create a new SorterOptions with defaults.

fn temp_dir<T: AsRef<Path>>(self: &Self, path: T) -> SorterOptions

Create a new SorterOptions with temp_dir set.

fn max_memory(self: &Self, max_memory: usize) -> SorterOptions

Create a new SorterOptions with max_memory set.

fn create_from_writer<F>(self: &Self, writer: Writer, merge_fn: F) -> Sorter where F: Fn(&[u8], &[u8], &[u8]) -> Vec<u8> + 'static

Create a new Sorter with these options.

Once sorting is done, the resulting sequence will be written to the supplied Writer. Note that a MergeFn must be supplied to combine values for entries with colliding keys.

fn create_from_path<T, F>(self: &Self, path: T, merge_fn: F) -> IOResult<Sorter> where T: AsRef<Path>, F: Fn(&[u8], &[u8], &[u8]) -> Vec<u8> + 'static

Create a new Sorter with these options.

Once sorting is done, the resulting sequence will be written to the supplied path. Note that a MergeFn must be supplied to combine values for entries with colliding keys.

fn create_from_file<T, F>(self: &Self, file: T, merge_fn: F) -> IOResult<Sorter> where T: 'static + AsRawFd, F: Fn(&[u8], &[u8], &[u8]) -> Vec<u8> + 'static

Create a new Sorter with these options.

Once sorting is done, the resulting sequence will be written to the supplied path. Note that a MergeFn must be supplied to combine values for entries with colliding keys.

Trait Implementations

impl Clone for SorterOptions

fn clone(&self) -> SorterOptions

Returns a copy of the value.

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

Performs copy-assignment from source.