Trait WriteZeroesAt

pub trait WriteZeroesAt {
    // Required method
    fn write_zeroes_at(&mut self, offset: u64, length: usize) -> Result<usize>;

    // Provided method
    fn write_all_zeroes_at(&mut self, offset: u64, length: usize) -> Result<()> { ... }
}

A trait for writing zeroes to an arbitrary position in a file.

Required Methods

fn write_zeroes_at(&mut self, offset: u64, length: usize) -> Result<usize>

Write up to length bytes of zeroes starting at offset, returning how many bytes were written.

Arguments

• offset: offset of the file where to write zeroes.
• length: the number of bytes of zeroes to write to the stream.

Provided Methods

fn write_all_zeroes_at(&mut self, offset: u64, length: usize) -> Result<()>

Write zeroes starting at offset until length bytes have been written.

This method will continuously write zeroes until the requested length is satisfied or an unrecoverable error is encountered.

Arguments

• offset: offset of the file where to write zeroes.
• length: the exact number of bytes of zeroes to write to the stream.

Implementations on Foreign Types

impl WriteZeroesAt for File

fn write_zeroes_at(&mut self, offset: u64, length: usize) -> Result<usize>

Implementors