# actix_web::actix::actix::io::Writer - Rust
API documentation for the Rust `Writer` struct in crate `actix_web`.
Keywords: rust, rustlang, rust-lang, Writer

# Struct actix_web::actix::actix::io::Writer [−]

    pub struct Writer<T, E> where
        E: From<Error>,
        T: AsyncWrite,  { /* fields omitted */ }

Wrapper for `AsyncWrite` types

## Methods

###

`impl<T, E> Writer<T, E> where E: 'static + From<Error>, T: AsyncWrite,`

####

`pub fn new<A, C>(io: T, ctx: &mut C) -> Writer<T, E> where A: Actor<Context = C> + WriteHandler<E>, C: AsyncContext<A>, T: 'static,` |

####

`pub fn close(&mut self)` |

Gracefully close sink

Close process is asynchronous.

####

`pub fn closed(&self) -> bool` |

Check if sink is closed

####

`pub fn set_buffer_capacity( &mut self, low_watermark: usize, high_watermark: usize )` |

Set write buffer capacity

####

`pub fn write(&mut self, msg: &[u8])` |

Send item to a sink.

####

`pub fn handle(&self) -> SpawnHandle` |

`SpawnHandle` for this writer

## Auto Trait Implementations

###

`impl<T, E> !Send for Writer<T, E>`

###

`impl<T, E> !Sync for Writer<T, E>`

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