Trait WriteExt

pub trait WriteExt {
    // Required methods
    fn try_write_exact(
        &mut self,
        data: &[u8],
        counter: impl FnMut(usize),
    ) -> Result<(), Error>;
    fn try_fill(
        &mut self,
        len: usize,
        counter: impl FnMut(usize),
    ) -> Result<(), Error>;
}

An extension for Write

Required Methods

fn try_write_exact( &mut self, data: &[u8], counter: impl FnMut(usize), ) -> Result<(), Error>

Tries to write data completely and calls the position callback pos_cb with the amount of bytes written on every successful write call

Note: This function behaves like write_exact, except that you will never loose state in case of an incomplete write - if the error is non-fatal (like TimedOut), you can always try again later from the last position as if nothing happened

fn try_fill( &mut self, len: usize, counter: impl FnMut(usize), ) -> Result<(), Error>

Tries to write len zero bytes and calls the position callback pos_cb with the amount of bytes written on every successful write call

Note: This function behaves similar to write_exact (without data), except that you will never loose state in case of an incomplete write - if the error is non-fatal (like TimedOut), you can always try again later if nothing happened

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T: Write> WriteExt for T