Trait SessionManager

pub trait SessionManager: 'static {
    type Session;

    // Required methods
    fn on_attach_vmo(
        self: Arc<Self>,
        vmo: &Arc<Vmo>,
    ) -> impl Future<Output = Result<(), Status>> + Send;
    fn open_session(
        self: Arc<Self>,
        stream: SessionRequestStream,
        offset_map: OffsetMap,
        block_size: u32,
    ) -> impl Future<Output = Result<(), Error>> + Send;
    fn get_info(
        &self,
    ) -> impl Future<Output = Result<Cow<'_, DeviceInfo>, Status>> + Send;
    fn active_requests(&self) -> &ActiveRequests<Self::Session>;

    // Provided methods
    fn get_volume_info(
        &self,
    ) -> impl Future<Output = Result<(VolumeManagerInfo, VolumeInfo), Status>> + Send { ... }
    fn query_slices(
        &self,
        _start_slices: &[u64],
    ) -> impl Future<Output = Result<Vec<VsliceRange>, Status>> + Send { ... }
    fn extend(
        &self,
        _start_slice: u64,
        _slice_count: u64,
    ) -> impl Future<Output = Result<(), Status>> + Send { ... }
    fn shrink(
        &self,
        _start_slice: u64,
        _slice_count: u64,
    ) -> impl Future<Output = Result<(), Status>> + Send { ... }
}

Required Associated Types

type Session

Required Methods

fn on_attach_vmo( self: Arc<Self>, vmo: &Arc<Vmo>, ) -> impl Future<Output = Result<(), Status>> + Send

fn open_session( self: Arc<Self>, stream: SessionRequestStream, offset_map: OffsetMap, block_size: u32, ) -> impl Future<Output = Result<(), Error>> + Send

Creates a new session to handle stream. The returned future should run until the session completes, for example when the client end closes. offset_map, will be used to adjust the block offset/length of FIFO requests.

fn get_info( &self, ) -> impl Future<Output = Result<Cow<'_, DeviceInfo>, Status>> + Send

Called to get block/partition information for Block::GetInfo, Partition::GetTypeGuid, etc.

fn active_requests(&self) -> &ActiveRequests<Self::Session>

Returns the active requests.

Provided Methods

fn get_volume_info( &self, ) -> impl Future<Output = Result<(VolumeManagerInfo, VolumeInfo), Status>> + Send

Called to handle the GetVolumeInfo FIDL call.

fn query_slices( &self, _start_slices: &[u64], ) -> impl Future<Output = Result<Vec<VsliceRange>, Status>> + Send

Called to handle the QuerySlices FIDL call.

fn extend( &self, _start_slice: u64, _slice_count: u64, ) -> impl Future<Output = Result<(), Status>> + Send

Called to handle the Shrink FIDL call.

fn shrink( &self, _start_slice: u64, _slice_count: u64, ) -> impl Future<Output = Result<(), Status>> + Send

Called to handle the Shrink FIDL call.

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 SessionManager for block_server::c_interface::SessionManager

type Session = Arc<Session>

impl<I: Interface + ?Sized> SessionManager for block_server::async_interface::SessionManager<I>

type Session = usize