Struct vmm_vhost::frontend_client::FrontendClient

pub struct FrontendClient {
    sock: Connection<BackendReq>,
    reply_ack_negotiated: bool,
    error: Option<i32>,
}

Client for a vhost-user frontend. Allows a backend to send requests to the frontend.

Fields

sock: Connection<BackendReq>

reply_ack_negotiated: bool

error: Option<i32>

Implementations

impl FrontendClient

pub fn new(ep: Connection<BackendReq>) -> Self

Create a new instance from the given connection.

fn send_message<T>( &mut self, request: BackendReq, msg: &T, fds: Option<&[RawDescriptor]> ) -> HandlerResult<u64>

where T: AsBytes,

fn wait_for_reply( &mut self, hdr: &VhostUserMsgHeader<BackendReq> ) -> Result<u64>

pub fn set_reply_ack_flag(&mut self, enable: bool)

Set the negotiation state of the VHOST_USER_PROTOCOL_F_REPLY_ACK protocol feature.

When the VHOST_USER_PROTOCOL_F_REPLY_ACK protocol feature has been negotiated, the “REPLY_ACK” flag will be set in the message header for every backend to frontend request message.

pub fn set_failed(&mut self, error: i32)

Mark connection as failed with specified error code.

Trait Implementations

impl Frontend for FrontendClient

fn shmem_map( &mut self, req: &VhostUserShmemMapMsg, fd: &dyn AsRawDescriptor ) -> HandlerResult<u64>

Handle shared memory region mapping requests.

fn shmem_unmap(&mut self, req: &VhostUserShmemUnmapMsg) -> HandlerResult<u64>

Handle shared memory region unmapping requests.

fn handle_config_change(&mut self) -> HandlerResult<u64>

Handle config change requests.

fn gpu_map( &mut self, req: &VhostUserGpuMapMsg, descriptor: &dyn AsRawDescriptor ) -> HandlerResult<u64>

Handle GPU shared memory region mapping requests.

fn external_map(&mut self, req: &VhostUserExternalMapMsg) -> HandlerResult<u64>

Handle external memory region mapping requests.