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AlignedFileReader

diskann_disk::utils::aligned_file_reader::traits

Trait AlignedFileReader 

Source 
pub trait AlignedFileReader: Send + Sync {
    type Alignment: Alignment;

    // Required method
    fn read(
        &mut self,
        read_requests: &mut [AlignedRead<'_, u8, Self::Alignment>],
    ) -> ANNResult<()>;
}

Required Associated Types§

Source

type Alignment: Alignment

Alignment requirement applied to every AlignedRead<u8, Self::Alignment> passed to Self::read. All three constraints — buffer pointer, buffer length, and disk offset — are checked against this value at AlignedRead::new time.

Direct-I/O readers (O_DIRECT, FILE_FLAG_NO_BUFFERING) set this to the device sector size (typically 512 bytes); buffered readers use A1. The caller is responsible for generating offsets and buffers that satisfy this alignment — DiskSectorGraph, for example, requires its block_size to be a multiple of Self::Alignment::VALUE.

Required Methods§

Source

fn read( &mut self, read_requests: &mut [AlignedRead<'_, u8, Self::Alignment>], ) -> ANNResult<()>

Read the data from the file by sending concurrent io requests in batches.

Implementors§