Function register_eventfd_async [src]

Registers the file descriptor for an eventfd that will be notified of completion events on an io_uring instance. Notifications are only posted for events that complete in an async manner. This means that events that complete inline while being submitted do not trigger a notification event. Only a single eventfd can be registered at any given point in time.

Prototype

pub fn register_eventfd_async(self: *IoUring, fd: posix.fd_t) !void

Parameters

self: *IoUringfd: posix.fd_t

Source

  pub fn register_eventfd_async(self: *IoUring, fd: posix.fd_t) !void {
    assert(self.fd >= 0);
    const res = linux.io_uring_register(
        self.fd,
        .REGISTER_EVENTFD_ASYNC,
        @as(*const anyopaque, @ptrCast(&fd)),
        1,
    );
    try handle_registration_result(res);
}  