Struct swap::SwapDeviceUffdSender

pub struct SwapDeviceUffdSender {
    uffd_factory: Factory,
    command_tube: SendTube,
    sender: Tube,
    receiver: Tube,
}

Create a new userfaultfd and send it to the monitor process.

Fields

uffd_factory: Factory

command_tube: SendTube

sender: Tube

receiver: Tube

Implementations

impl SwapDeviceUffdSender

fn new(command_tube: SendTube, uffd_factory: &UffdFactory) -> Result<Self>

pub fn on_process_forked(self) -> Result<()>

Create a new userfaultfd and send it to the monitor process.

This must be called as soon as a child process which may touch the guest memory is forked.

Userfaultfd(2) originally has UFFD_FEATURE_EVENT_FORK. But it is not applicable to crosvm since it does not support non-root user namespace.

Trait Implementations

impl AsRawDescriptors for SwapDeviceUffdSender

fn as_raw_descriptors(&self) -> Vec<RawDescriptor>

Returns the underlying raw descriptors.