Trait NgxQueueEntry

pub unsafe trait NgxQueueEntry {
    // Required methods
    fn from_queue(queue: NonNull<ngx_queue_t>) -> NonNull<Self>;
    fn to_queue(&mut self) -> &mut ngx_queue_t;
}

Trait for pointer conversions between the queue entry and its container.

Safety

This trait must only be implemented on types that contain a queue link or wrappers with compatible layout. The type then can be used to access elements of a raw queue type NgxQueue linked via specified field.

If the struct can belong to several queues through multiple embedded ngx_queue_t fields, a separate NgxQueueEntry implementation via wrapper type should be used for each queue.

Required Methods

fn from_queue(queue: NonNull<ngx_queue_t>) -> NonNull<Self>

Gets a container pointer from queue node.

fn to_queue(&mut self) -> &mut ngx_queue_t

Gets a queue node from a container reference.

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 NgxQueueEntry for ngx_queue_t