Struct vhost_user_backend::VringEpollHandler

pub struct VringEpollHandler<S, V, B> { /* private fields */ }

Epoll event handler to manage and process epoll events for registered file descriptor.

The VringEpollHandler structure provides interfaces to:

• add file descriptors to be monitored by the epoll fd
• remove registered file descriptors from the epoll fd
• run the event loop to handle pending events on the epoll fd

Implementations

impl<S, V, B> VringEpollHandler<S, V, B>

pub fn send_exit_event(&self)

Send exit event to break the event loop.

impl<S, V, B> VringEpollHandler<S, V, B>where S: VhostUserBackend<V, B>, V: VringT<GuestMemoryAtomic<GuestMemoryMmap<B>>>, B: Bitmap + 'static,

pub fn register_listener( &self, fd: RawFd, ev_type: EventSet, data: u64 ) -> Result<()>

Register an event into the epoll fd.

When this event is later triggered, the backend implementation of handle_event will be called.

pub fn unregister_listener( &self, fd: RawFd, ev_type: EventSet, data: u64 ) -> Result<()>

Unregister an event from the epoll fd.

If the event is triggered after this function has been called, the event will be silently dropped.

Trait Implementations

impl<S, V, B> AsRawFd for VringEpollHandler<S, V, B>

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.