Trait VowFileAsync 

pub trait VowFileAsync: MaybeSend {
    // Required methods
    fn open(path: &Path) -> impl IoFut<Self>
       where Self: Sized;
    fn read(&mut self, buf: Vec<u8>) -> impl BufFut;
    fn write(&mut self, buf: Vec<u8>) -> impl BufFut;
    fn flush(&mut self) -> impl IoFut<()>;
    fn set_len(&mut self, len: u64) -> impl IoFut<()>;
}

Low-level trait for asynchronous file operations

Required Methods

fn open(path: &Path) -> impl IoFut<Self>

where Self: Sized,

Open a new file at the given path asynchronously

fn read(&mut self, buf: Vec<u8>) -> impl BufFut

Read entire file into a buffer

fn write(&mut self, buf: Vec<u8>) -> impl BufFut

Write entire buffer into a file

fn flush(&mut self) -> impl IoFut<()>

Flush the file

fn set_len(&mut self, len: u64) -> impl IoFut<()>

Set the length of the file

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.

Implementations on Foreign Types

impl VowFileAsync for File

Available on crate feature backend-async-std only.

fn open(path: &Path) -> impl IoFut<Self>

where Self: Sized,

fn read(&mut self, buf: Vec<u8>) -> impl BufFut

fn write(&mut self, buf: Vec<u8>) -> impl BufFut

fn flush(&mut self) -> impl IoFut<()>

fn set_len(&mut self, len: u64) -> impl IoFut<()>

impl VowFileAsync for File

Available on crate feature backend-compio only.

fn open(path: &Path) -> impl IoFut<Self>

where Self: Sized,

fn read(&mut self, buf: Vec<u8>) -> impl BufFut

fn write(&mut self, buf: Vec<u8>) -> impl BufFut

fn flush(&mut self) -> impl IoFut<()>

fn set_len(&mut self, len: u64) -> impl IoFut<()>

impl VowFileAsync for File

Available on crate feature backend-tokio only.

fn open(path: &Path) -> impl IoFut<Self>

where Self: Sized,

fn read(&mut self, buf: Vec<u8>) -> impl BufFut

fn write(&mut self, buf: Vec<u8>) -> impl BufFut

fn flush(&mut self) -> impl IoFut<()>

fn set_len(&mut self, len: u64) -> impl IoFut<()>

Implementors