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MessageFilter

canlink_hal::filter

Trait MessageFilter 

Source 
pub trait MessageFilter: Send + Sync {
    // Required method
    fn matches(&self, message: &CanMessage) -> bool;

    // Provided methods
    fn priority(&self) -> u32 { ... }
    fn is_hardware(&self) -> bool { ... }
}
Expand description

Message filter trait

All filter implementations must implement this trait. Filters can be either hardware-accelerated or software-based.

§Thread Safety

Implementations must be Send + Sync to allow use across threads.

§Example

ⓘ
use canlink_hal::filter::MessageFilter;
use canlink_hal::message::CanMessage;

struct MyFilter {
    target_id: u32,
}

impl MessageFilter for MyFilter {
    fn matches(&self, message: &CanMessage) -> bool {
        message.id() == self.target_id
    }
}

Required Methods§

Source

fn matches(&self, message: &CanMessage) -> bool

Check if a message matches this filter

Returns true if the message should be accepted.

Provided Methods§

Source

fn priority(&self) -> u32

Get the filter priority

Higher priority filters are evaluated first. Default is 0 (lowest priority).

Source

fn is_hardware(&self) -> bool

Check if this is a hardware filter

Hardware filters are executed by the CAN controller, reducing CPU load. Returns false by default.

Implementors§