Trait Filter 

pub trait Filter {
    // Required method
    fn filter(&mut self, msg: &Message) -> Result<()>;
}

Filter is used by Network implementor to filter messages before re-routing them. It’s like the middleware in HTTP pipeline.

To avoid delaying other messages handling, the execution of any filter should be fast as it is performed in the message handler .

Required Methods

fn filter(&mut self, msg: &Message) -> Result<()>

Filters a message.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors